[llvm-commits] [llvm] r153307 - in /llvm/trunk: ./ autoconf/ docs/ include/llvm/Config/ lib/Target/ lib/Target/CBackend/ lib/Target/CBackend/TargetInfo/ projects/sample/ projects/sample/autoconf/ tools/bugpoint/ utils/ utils/lit/lit/ExampleTests/LLVM.InTree/test/ utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/
Jim Grosbach
grosbach at apple.com
Fri Mar 23 09:42:43 PDT 2012
And there was much rejoicing.
On Mar 22, 2012, at 10:50 PM, Eric Christopher wrote:
> Author: echristo
> Date: Fri Mar 23 00:50:46 2012
> New Revision: 153307
>
> URL: http://llvm.org/viewvc/llvm-project?rev=153307&view=rev
> Log:
> Remove the C backend.
>
> Removed:
> llvm/trunk/lib/Target/CBackend/CBackend.cpp
> llvm/trunk/lib/Target/CBackend/CMakeLists.txt
> llvm/trunk/lib/Target/CBackend/CTargetMachine.h
> llvm/trunk/lib/Target/CBackend/LLVMBuild.txt
> llvm/trunk/lib/Target/CBackend/Makefile
> llvm/trunk/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp
> llvm/trunk/lib/Target/CBackend/TargetInfo/CMakeLists.txt
> llvm/trunk/lib/Target/CBackend/TargetInfo/LLVMBuild.txt
> llvm/trunk/lib/Target/CBackend/TargetInfo/Makefile
> Modified:
> llvm/trunk/CMakeLists.txt
> llvm/trunk/autoconf/configure.ac
> llvm/trunk/configure
> llvm/trunk/docs/ExtendingLLVM.html
> llvm/trunk/docs/GettingStarted.html
> llvm/trunk/include/llvm/Config/config.h.in
> llvm/trunk/lib/Target/LLVMBuild.txt
> llvm/trunk/projects/sample/autoconf/configure.ac
> llvm/trunk/projects/sample/configure
> llvm/trunk/tools/bugpoint/ExecutionDriver.cpp
> llvm/trunk/tools/bugpoint/ToolRunner.cpp
> llvm/trunk/utils/GenLibDeps.pl
> llvm/trunk/utils/lit/lit/ExampleTests/LLVM.InTree/test/site.exp
> llvm/trunk/utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/site.exp
>
> Modified: llvm/trunk/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/CMakeLists.txt?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/CMakeLists.txt (original)
> +++ llvm/trunk/CMakeLists.txt Fri Mar 23 00:50:46 2012
> @@ -72,7 +72,6 @@
>
> set(LLVM_ALL_TARGETS
> ARM
> - CBackend
> CellSPU
> CppBackend
> Hexagon
>
> Modified: llvm/trunk/autoconf/configure.ac
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/autoconf/configure.ac?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/autoconf/configure.ac (original)
> +++ llvm/trunk/autoconf/configure.ac Fri Mar 23 00:50:46 2012
> @@ -632,7 +632,7 @@
> enableval=host
> fi
> case "$enableval" in
> - all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CBackend CppBackend MBlaze PTX Hexagon" ;;
> + all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CppBackend MBlaze PTX Hexagon" ;;
> *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
> case "$a_target" in
> x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
> @@ -645,7 +645,6 @@
> spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
> xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
> msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
> - cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
> cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
> hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
> mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
> @@ -723,21 +722,6 @@
> AC_SUBST(LLVM_ENUM_ASM_PARSERS)
> AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
>
> -dnl Prevent the CBackend from using printf("%a") for floating point so older
> -dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
> -dnl can still compile the CBE's output
> -AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
> - [Enable C Backend output with hex floating point via %a (default is YES)]),,
> - enableval=default)
> -case "$enableval" in
> - yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
> - no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
> - default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
> - *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
> -esac
> -AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
> - [Define if CBE is enabled for printf %a output])
> -
> dnl Override the option to use for optimized builds.
> AC_ARG_WITH(optimize-option,
> AS_HELP_STRING([--with-optimize-option],
>
> Modified: llvm/trunk/configure
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/configure?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/configure (original)
> +++ llvm/trunk/configure Fri Mar 23 00:50:46 2012
> @@ -705,7 +705,6 @@
> LLVM_ENUM_ASM_PRINTERS
> LLVM_ENUM_ASM_PARSERS
> LLVM_ENUM_DISASSEMBLERS
> -ENABLE_CBE_PRINTF_A
> OPTIMIZE_OPTION
> EXTRA_OPTIONS
> EXTRA_LD_OPTIONS
> @@ -1422,8 +1421,6 @@
> target1,target2,... Valid targets are: host, x86,
> x86_64, sparc, powerpc, arm, mips, spu, hexagon,
> xcore, msp430, ptx, cbe, and cpp (default=all)
> - --enable-cbe-printf-a Enable C Backend output with hex floating point via
> - %a (default is YES)
> --enable-bindings Build specific language bindings:
> all,auto,none,{binding-name} (default=auto)
> --enable-libffi Check for the presence of libffi (default is NO)
> @@ -5310,7 +5307,7 @@
> enableval=host
> fi
> case "$enableval" in
> - all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CBackend CppBackend MBlaze PTX Hexagon" ;;
> + all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 CppBackend MBlaze PTX Hexagon" ;;
> *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
> case "$a_target" in
> x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
> @@ -5323,7 +5320,6 @@
> spu) TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
> xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
> msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
> - cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
> cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
> hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
> mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
> @@ -5420,30 +5416,6 @@
>
>
>
> -# Check whether --enable-cbe-printf-a was given.
> -if test "${enable_cbe_printf_a+set}" = set; then
> - enableval=$enable_cbe_printf_a;
> -else
> - enableval=default
> -fi
> -
> -case "$enableval" in
> - yes) ENABLE_CBE_PRINTF_A=1
> - ;;
> - no) ENABLE_CBE_PRINTF_A=0
> - ;;
> - default) ENABLE_CBE_PRINTF_A=1
> - ;;
> - *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-cbe-printf-a. Use \"yes\" or \"no\"" >&5
> -echo "$as_me: error: Invalid setting for --enable-cbe-printf-a. Use \"yes\" or \"no\"" >&2;}
> - { (exit 1); exit 1; }; } ;;
> -esac
> -
> -cat >>confdefs.h <<_ACEOF
> -#define ENABLE_CBE_PRINTF_A $ENABLE_CBE_PRINTF_A
> -_ACEOF
> -
> -
>
> # Check whether --with-optimize-option was given.
> if test "${with_optimize_option+set}" = set; then
> @@ -10402,7 +10374,7 @@
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<EOF
> -#line 10405 "configure"
> +#line 10377 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -13686,7 +13658,6 @@
> /* | [A-Za-z]:[\\/]*) INTEL_JITEVENTS_INCDIR=$withval/include
> INTEL_JITEVENTS_LIBDIR=$withval/$llvm_intel_jitevents_archdir ;;
> *) ;;
> -
> esac
>
>
> @@ -22186,7 +22157,6 @@
> LLVM_ENUM_ASM_PRINTERS!$LLVM_ENUM_ASM_PRINTERS$ac_delim
> LLVM_ENUM_ASM_PARSERS!$LLVM_ENUM_ASM_PARSERS$ac_delim
> LLVM_ENUM_DISASSEMBLERS!$LLVM_ENUM_DISASSEMBLERS$ac_delim
> -ENABLE_CBE_PRINTF_A!$ENABLE_CBE_PRINTF_A$ac_delim
> OPTIMIZE_OPTION!$OPTIMIZE_OPTION$ac_delim
> EXTRA_OPTIONS!$EXTRA_OPTIONS$ac_delim
> EXTRA_LD_OPTIONS!$EXTRA_LD_OPTIONS$ac_delim
> @@ -22275,7 +22245,7 @@
> LTLIBOBJS!$LTLIBOBJS$ac_delim
> _ACEOF
>
> - if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 93; then
> + if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 92; then
> break
> elif $ac_last_try; then
> { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
>
> Modified: llvm/trunk/docs/ExtendingLLVM.html
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/ExtendingLLVM.html?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/docs/ExtendingLLVM.html (original)
> +++ llvm/trunk/docs/ExtendingLLVM.html Fri Mar 23 00:50:46 2012
> @@ -105,19 +105,6 @@
> support for it. Generally you must do the following steps:</p>
>
> <dl>
> -<dt>Add support to the C backend in <tt>lib/Target/CBackend/</tt></dt>
> -
> -<dd>Depending on the intrinsic, there are a few ways to implement this. For
> - most intrinsics, it makes sense to add code to lower your intrinsic in
> - <tt>LowerIntrinsicCall</tt> in <tt>lib/CodeGen/IntrinsicLowering.cpp</tt>.
> - Second, if it makes sense to lower the intrinsic to an expanded sequence of
> - C code in all cases, just emit the expansion in <tt>visitCallInst</tt> in
> - <tt>Writer.cpp</tt>. If the intrinsic has some way to express it with GCC
> - (or any other compiler) extensions, it can be conditionally supported based
> - on the compiler compiling the CBE output (see <tt>llvm.prefetch</tt> for an
> - example). Third, if the intrinsic really has no way to be lowered, just
> - have the code generator emit code that prints an error message and calls
> - abort if executed.</dd>
>
> <dt>Add support to the .td file for the target(s) of your choice in
> <tt>lib/Target/*/*.td</tt>.</dt>
>
> Modified: llvm/trunk/docs/GettingStarted.html
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/GettingStarted.html?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/docs/GettingStarted.html (original)
> +++ llvm/trunk/docs/GettingStarted.html Fri Mar 23 00:50:46 2012
> @@ -1389,7 +1389,7 @@
> <dd> This directory contains files that describe various target architectures
> for code generation. For example, the <tt>llvm/lib/Target/X86</tt>
> directory holds the X86 machine description while
> - <tt>llvm/lib/Target/CBackend</tt> implements the LLVM-to-C converter.</dd>
> + <tt>llvm/lib/Target/ARM</tt> implements the ARM backend.</dd>
>
> <dt><tt><b>llvm/lib/CodeGen/</b></tt></dt>
> <dd> This directory contains the major parts of the code generator: Instruction
>
> Modified: llvm/trunk/include/llvm/Config/config.h.in
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Config/config.h.in?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/Config/config.h.in (original)
> +++ llvm/trunk/include/llvm/Config/config.h.in Fri Mar 23 00:50:46 2012
> @@ -12,9 +12,6 @@
> /* Directories clang will search for headers */
> #undef C_INCLUDE_DIRS
>
> -/* Define if CBE is enabled for printf %a output */
> -#undef ENABLE_CBE_PRINTF_A
> -
> /* Define if position independent code is enabled */
> #undef ENABLE_PIC
>
>
> Removed: llvm/trunk/lib/Target/CBackend/CBackend.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/CBackend.cpp?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/CBackend.cpp (original)
> +++ llvm/trunk/lib/Target/CBackend/CBackend.cpp (removed)
> @@ -1,3616 +0,0 @@
> -//===-- CBackend.cpp - Library for converting LLVM code to C --------------===//
> -//
> -// The LLVM Compiler Infrastructure
> -//
> -// This file is distributed under the University of Illinois Open Source
> -// License. See LICENSE.TXT for details.
> -//
> -//===----------------------------------------------------------------------===//
> -//
> -// This library converts LLVM code to C code, compilable by GCC and other C
> -// compilers.
> -//
> -//===----------------------------------------------------------------------===//
> -
> -#include "CTargetMachine.h"
> -#include "llvm/CallingConv.h"
> -#include "llvm/Constants.h"
> -#include "llvm/DerivedTypes.h"
> -#include "llvm/Module.h"
> -#include "llvm/Instructions.h"
> -#include "llvm/Pass.h"
> -#include "llvm/PassManager.h"
> -#include "llvm/Intrinsics.h"
> -#include "llvm/IntrinsicInst.h"
> -#include "llvm/InlineAsm.h"
> -#include "llvm/ADT/StringExtras.h"
> -#include "llvm/ADT/SmallString.h"
> -#include "llvm/ADT/STLExtras.h"
> -#include "llvm/Analysis/ConstantsScanner.h"
> -#include "llvm/Analysis/FindUsedTypes.h"
> -#include "llvm/Analysis/LoopInfo.h"
> -#include "llvm/Analysis/ValueTracking.h"
> -#include "llvm/CodeGen/Passes.h"
> -#include "llvm/CodeGen/IntrinsicLowering.h"
> -#include "llvm/Target/Mangler.h"
> -#include "llvm/Transforms/Scalar.h"
> -#include "llvm/MC/MCAsmInfo.h"
> -#include "llvm/MC/MCContext.h"
> -#include "llvm/MC/MCInstrInfo.h"
> -#include "llvm/MC/MCObjectFileInfo.h"
> -#include "llvm/MC/MCRegisterInfo.h"
> -#include "llvm/MC/MCSubtargetInfo.h"
> -#include "llvm/MC/MCSymbol.h"
> -#include "llvm/Target/TargetData.h"
> -#include "llvm/Support/CallSite.h"
> -#include "llvm/Support/CFG.h"
> -#include "llvm/Support/ErrorHandling.h"
> -#include "llvm/Support/FormattedStream.h"
> -#include "llvm/Support/GetElementPtrTypeIterator.h"
> -#include "llvm/Support/InstVisitor.h"
> -#include "llvm/Support/MathExtras.h"
> -#include "llvm/Support/TargetRegistry.h"
> -#include "llvm/Support/Host.h"
> -#include "llvm/Config/config.h"
> -#include <algorithm>
> -// Some ms header decided to define setjmp as _setjmp, undo this for this file.
> -#ifdef _MSC_VER
> -#undef setjmp
> -#endif
> -using namespace llvm;
> -
> -extern "C" void LLVMInitializeCBackendTarget() {
> - // Register the target.
> - RegisterTargetMachine<CTargetMachine> X(TheCBackendTarget);
> -}
> -
> -namespace {
> - class CBEMCAsmInfo : public MCAsmInfo {
> - public:
> - CBEMCAsmInfo() {
> - GlobalPrefix = "";
> - PrivateGlobalPrefix = "";
> - }
> - };
> -
> - /// CWriter - This class is the main chunk of code that converts an LLVM
> - /// module to a C translation unit.
> - class CWriter : public FunctionPass, public InstVisitor<CWriter> {
> - formatted_raw_ostream &Out;
> - IntrinsicLowering *IL;
> - Mangler *Mang;
> - LoopInfo *LI;
> - const Module *TheModule;
> - const MCAsmInfo* TAsm;
> - const MCRegisterInfo *MRI;
> - const MCObjectFileInfo *MOFI;
> - MCContext *TCtx;
> - const TargetData* TD;
> -
> - std::map<const ConstantFP *, unsigned> FPConstantMap;
> - std::set<Function*> intrinsicPrototypesAlreadyGenerated;
> - std::set<const Argument*> ByValParams;
> - unsigned FPCounter;
> - unsigned OpaqueCounter;
> - DenseMap<const Value*, unsigned> AnonValueNumbers;
> - unsigned NextAnonValueNumber;
> -
> - /// UnnamedStructIDs - This contains a unique ID for each struct that is
> - /// either anonymous or has no name.
> - DenseMap<StructType*, unsigned> UnnamedStructIDs;
> -
> - public:
> - static char ID;
> - explicit CWriter(formatted_raw_ostream &o)
> - : FunctionPass(ID), Out(o), IL(0), Mang(0), LI(0),
> - TheModule(0), TAsm(0), MRI(0), MOFI(0), TCtx(0), TD(0),
> - OpaqueCounter(0), NextAnonValueNumber(0) {
> - initializeLoopInfoPass(*PassRegistry::getPassRegistry());
> - FPCounter = 0;
> - }
> -
> - virtual const char *getPassName() const { return "C backend"; }
> -
> - void getAnalysisUsage(AnalysisUsage &AU) const {
> - AU.addRequired<LoopInfo>();
> - AU.setPreservesAll();
> - }
> -
> - virtual bool doInitialization(Module &M);
> -
> - bool runOnFunction(Function &F) {
> - // Do not codegen any 'available_externally' functions at all, they have
> - // definitions outside the translation unit.
> - if (F.hasAvailableExternallyLinkage())
> - return false;
> -
> - LI = &getAnalysis<LoopInfo>();
> -
> - // Get rid of intrinsics we can't handle.
> - lowerIntrinsics(F);
> -
> - // Output all floating point constants that cannot be printed accurately.
> - printFloatingPointConstants(F);
> -
> - printFunction(F);
> - return false;
> - }
> -
> - virtual bool doFinalization(Module &M) {
> - // Free memory...
> - delete IL;
> - delete TD;
> - delete Mang;
> - delete TCtx;
> - delete TAsm;
> - delete MRI;
> - delete MOFI;
> - FPConstantMap.clear();
> - ByValParams.clear();
> - intrinsicPrototypesAlreadyGenerated.clear();
> - UnnamedStructIDs.clear();
> - return false;
> - }
> -
> - raw_ostream &printType(raw_ostream &Out, Type *Ty,
> - bool isSigned = false,
> - const std::string &VariableName = "",
> - bool IgnoreName = false,
> - const AttrListPtr &PAL = AttrListPtr());
> - raw_ostream &printSimpleType(raw_ostream &Out, Type *Ty,
> - bool isSigned,
> - const std::string &NameSoFar = "");
> -
> - void printStructReturnPointerFunctionType(raw_ostream &Out,
> - const AttrListPtr &PAL,
> - PointerType *Ty);
> -
> - std::string getStructName(StructType *ST);
> -
> - /// writeOperandDeref - Print the result of dereferencing the specified
> - /// operand with '*'. This is equivalent to printing '*' then using
> - /// writeOperand, but avoids excess syntax in some cases.
> - void writeOperandDeref(Value *Operand) {
> - if (isAddressExposed(Operand)) {
> - // Already something with an address exposed.
> - writeOperandInternal(Operand);
> - } else {
> - Out << "*(";
> - writeOperand(Operand);
> - Out << ")";
> - }
> - }
> -
> - void writeOperand(Value *Operand, bool Static = false);
> - void writeInstComputationInline(Instruction &I);
> - void writeOperandInternal(Value *Operand, bool Static = false);
> - void writeOperandWithCast(Value* Operand, unsigned Opcode);
> - void writeOperandWithCast(Value* Operand, const ICmpInst &I);
> - bool writeInstructionCast(const Instruction &I);
> -
> - void writeMemoryAccess(Value *Operand, Type *OperandType,
> - bool IsVolatile, unsigned Alignment);
> -
> - private :
> - std::string InterpretASMConstraint(InlineAsm::ConstraintInfo& c);
> -
> - void lowerIntrinsics(Function &F);
> - /// Prints the definition of the intrinsic function F. Supports the
> - /// intrinsics which need to be explicitly defined in the CBackend.
> - void printIntrinsicDefinition(const Function &F, raw_ostream &Out);
> -
> - void printModuleTypes();
> - void printContainedStructs(Type *Ty, SmallPtrSet<Type *, 16> &);
> - void printFloatingPointConstants(Function &F);
> - void printFloatingPointConstants(const Constant *C);
> - void printFunctionSignature(const Function *F, bool Prototype);
> -
> - void printFunction(Function &);
> - void printBasicBlock(BasicBlock *BB);
> - void printLoop(Loop *L);
> -
> - void printCast(unsigned opcode, Type *SrcTy, Type *DstTy);
> - void printConstant(Constant *CPV, bool Static);
> - void printConstantWithCast(Constant *CPV, unsigned Opcode);
> - bool printConstExprCast(const ConstantExpr *CE, bool Static);
> - void printConstantArray(ConstantArray *CPA, bool Static);
> - void printConstantVector(ConstantVector *CV, bool Static);
> - void printConstantDataSequential(ConstantDataSequential *CDS, bool Static);
> -
> -
> - /// isAddressExposed - Return true if the specified value's name needs to
> - /// have its address taken in order to get a C value of the correct type.
> - /// This happens for global variables, byval parameters, and direct allocas.
> - bool isAddressExposed(const Value *V) const {
> - if (const Argument *A = dyn_cast<Argument>(V))
> - return ByValParams.count(A);
> - return isa<GlobalVariable>(V) || isDirectAlloca(V);
> - }
> -
> - // isInlinableInst - Attempt to inline instructions into their uses to build
> - // trees as much as possible. To do this, we have to consistently decide
> - // what is acceptable to inline, so that variable declarations don't get
> - // printed and an extra copy of the expr is not emitted.
> - //
> - static bool isInlinableInst(const Instruction &I) {
> - // Always inline cmp instructions, even if they are shared by multiple
> - // expressions. GCC generates horrible code if we don't.
> - if (isa<CmpInst>(I))
> - return true;
> -
> - // Must be an expression, must be used exactly once. If it is dead, we
> - // emit it inline where it would go.
> - if (I.getType() == Type::getVoidTy(I.getContext()) || !I.hasOneUse() ||
> - isa<TerminatorInst>(I) || isa<CallInst>(I) || isa<PHINode>(I) ||
> - isa<LoadInst>(I) || isa<VAArgInst>(I) || isa<InsertElementInst>(I) ||
> - isa<InsertValueInst>(I))
> - // Don't inline a load across a store or other bad things!
> - return false;
> -
> - // Must not be used in inline asm, extractelement, or shufflevector.
> - if (I.hasOneUse()) {
> - const Instruction &User = cast<Instruction>(*I.use_back());
> - if (isInlineAsm(User) || isa<ExtractElementInst>(User) ||
> - isa<ShuffleVectorInst>(User))
> - return false;
> - }
> -
> - // Only inline instruction it if it's use is in the same BB as the inst.
> - return I.getParent() == cast<Instruction>(I.use_back())->getParent();
> - }
> -
> - // isDirectAlloca - Define fixed sized allocas in the entry block as direct
> - // variables which are accessed with the & operator. This causes GCC to
> - // generate significantly better code than to emit alloca calls directly.
> - //
> - static const AllocaInst *isDirectAlloca(const Value *V) {
> - const AllocaInst *AI = dyn_cast<AllocaInst>(V);
> - if (!AI) return 0;
> - if (AI->isArrayAllocation())
> - return 0; // FIXME: we can also inline fixed size array allocas!
> - if (AI->getParent() != &AI->getParent()->getParent()->getEntryBlock())
> - return 0;
> - return AI;
> - }
> -
> - // isInlineAsm - Check if the instruction is a call to an inline asm chunk.
> - static bool isInlineAsm(const Instruction& I) {
> - if (const CallInst *CI = dyn_cast<CallInst>(&I))
> - return isa<InlineAsm>(CI->getCalledValue());
> - return false;
> - }
> -
> - // Instruction visitation functions
> - friend class InstVisitor<CWriter>;
> -
> - void visitReturnInst(ReturnInst &I);
> - void visitBranchInst(BranchInst &I);
> - void visitSwitchInst(SwitchInst &I);
> - void visitIndirectBrInst(IndirectBrInst &I);
> - void visitInvokeInst(InvokeInst &I) {
> - llvm_unreachable("Lowerinvoke pass didn't work!");
> - }
> - void visitResumeInst(ResumeInst &I) {
> - llvm_unreachable("DwarfEHPrepare pass didn't work!");
> - }
> - void visitUnreachableInst(UnreachableInst &I);
> -
> - void visitPHINode(PHINode &I);
> - void visitBinaryOperator(Instruction &I);
> - void visitICmpInst(ICmpInst &I);
> - void visitFCmpInst(FCmpInst &I);
> -
> - void visitCastInst (CastInst &I);
> - void visitSelectInst(SelectInst &I);
> - void visitCallInst (CallInst &I);
> - void visitInlineAsm(CallInst &I);
> - bool visitBuiltinCall(CallInst &I, Intrinsic::ID ID, bool &WroteCallee);
> -
> - void visitAllocaInst(AllocaInst &I);
> - void visitLoadInst (LoadInst &I);
> - void visitStoreInst (StoreInst &I);
> - void visitGetElementPtrInst(GetElementPtrInst &I);
> - void visitVAArgInst (VAArgInst &I);
> -
> - void visitInsertElementInst(InsertElementInst &I);
> - void visitExtractElementInst(ExtractElementInst &I);
> - void visitShuffleVectorInst(ShuffleVectorInst &SVI);
> -
> - void visitInsertValueInst(InsertValueInst &I);
> - void visitExtractValueInst(ExtractValueInst &I);
> -
> - void visitInstruction(Instruction &I) {
> -#ifndef NDEBUG
> - errs() << "C Writer does not know about " << I;
> -#endif
> - llvm_unreachable(0);
> - }
> -
> - void outputLValue(Instruction *I) {
> - Out << " " << GetValueName(I) << " = ";
> - }
> -
> - bool isGotoCodeNecessary(BasicBlock *From, BasicBlock *To);
> - void printPHICopiesForSuccessor(BasicBlock *CurBlock,
> - BasicBlock *Successor, unsigned Indent);
> - void printBranchToBlock(BasicBlock *CurBlock, BasicBlock *SuccBlock,
> - unsigned Indent);
> - void printGEPExpression(Value *Ptr, gep_type_iterator I,
> - gep_type_iterator E, bool Static);
> -
> - std::string GetValueName(const Value *Operand);
> - };
> -}
> -
> -char CWriter::ID = 0;
> -
> -
> -
> -static std::string CBEMangle(const std::string &S) {
> - std::string Result;
> -
> - for (unsigned i = 0, e = S.size(); i != e; ++i)
> - if (isalnum(S[i]) || S[i] == '_') {
> - Result += S[i];
> - } else {
> - Result += '_';
> - Result += 'A'+(S[i]&15);
> - Result += 'A'+((S[i]>>4)&15);
> - Result += '_';
> - }
> - return Result;
> -}
> -
> -std::string CWriter::getStructName(StructType *ST) {
> - if (!ST->isLiteral() && !ST->getName().empty())
> - return CBEMangle("l_"+ST->getName().str());
> -
> - return "l_unnamed_" + utostr(UnnamedStructIDs[ST]);
> -}
> -
> -
> -/// printStructReturnPointerFunctionType - This is like printType for a struct
> -/// return type, except, instead of printing the type as void (*)(Struct*, ...)
> -/// print it as "Struct (*)(...)", for struct return functions.
> -void CWriter::printStructReturnPointerFunctionType(raw_ostream &Out,
> - const AttrListPtr &PAL,
> - PointerType *TheTy) {
> - FunctionType *FTy = cast<FunctionType>(TheTy->getElementType());
> - std::string tstr;
> - raw_string_ostream FunctionInnards(tstr);
> - FunctionInnards << " (*) (";
> - bool PrintedType = false;
> -
> - FunctionType::param_iterator I = FTy->param_begin(), E = FTy->param_end();
> - Type *RetTy = cast<PointerType>(*I)->getElementType();
> - unsigned Idx = 1;
> - for (++I, ++Idx; I != E; ++I, ++Idx) {
> - if (PrintedType)
> - FunctionInnards << ", ";
> - Type *ArgTy = *I;
> - if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
> - assert(ArgTy->isPointerTy());
> - ArgTy = cast<PointerType>(ArgTy)->getElementType();
> - }
> - printType(FunctionInnards, ArgTy,
> - /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
> - PrintedType = true;
> - }
> - if (FTy->isVarArg()) {
> - if (!PrintedType)
> - FunctionInnards << " int"; //dummy argument for empty vararg functs
> - FunctionInnards << ", ...";
> - } else if (!PrintedType) {
> - FunctionInnards << "void";
> - }
> - FunctionInnards << ')';
> - printType(Out, RetTy,
> - /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), FunctionInnards.str());
> -}
> -
> -raw_ostream &
> -CWriter::printSimpleType(raw_ostream &Out, Type *Ty, bool isSigned,
> - const std::string &NameSoFar) {
> - assert((Ty->isPrimitiveType() || Ty->isIntegerTy() || Ty->isVectorTy()) &&
> - "Invalid type for printSimpleType");
> - switch (Ty->getTypeID()) {
> - case Type::VoidTyID: return Out << "void " << NameSoFar;
> - case Type::IntegerTyID: {
> - unsigned NumBits = cast<IntegerType>(Ty)->getBitWidth();
> - if (NumBits == 1)
> - return Out << "bool " << NameSoFar;
> - else if (NumBits <= 8)
> - return Out << (isSigned?"signed":"unsigned") << " char " << NameSoFar;
> - else if (NumBits <= 16)
> - return Out << (isSigned?"signed":"unsigned") << " short " << NameSoFar;
> - else if (NumBits <= 32)
> - return Out << (isSigned?"signed":"unsigned") << " int " << NameSoFar;
> - else if (NumBits <= 64)
> - return Out << (isSigned?"signed":"unsigned") << " long long "<< NameSoFar;
> - else {
> - assert(NumBits <= 128 && "Bit widths > 128 not implemented yet");
> - return Out << (isSigned?"llvmInt128":"llvmUInt128") << " " << NameSoFar;
> - }
> - }
> - case Type::FloatTyID: return Out << "float " << NameSoFar;
> - case Type::DoubleTyID: return Out << "double " << NameSoFar;
> - // Lacking emulation of FP80 on PPC, etc., we assume whichever of these is
> - // present matches host 'long double'.
> - case Type::X86_FP80TyID:
> - case Type::PPC_FP128TyID:
> - case Type::FP128TyID: return Out << "long double " << NameSoFar;
> -
> - case Type::X86_MMXTyID:
> - return printSimpleType(Out, Type::getInt32Ty(Ty->getContext()), isSigned,
> - " __attribute__((vector_size(64))) " + NameSoFar);
> -
> - case Type::VectorTyID: {
> - VectorType *VTy = cast<VectorType>(Ty);
> - return printSimpleType(Out, VTy->getElementType(), isSigned,
> - " __attribute__((vector_size(" +
> - utostr(TD->getTypeAllocSize(VTy)) + " ))) " + NameSoFar);
> - }
> -
> - default:
> -#ifndef NDEBUG
> - errs() << "Unknown primitive type: " << *Ty << "\n";
> -#endif
> - llvm_unreachable(0);
> - }
> -}
> -
> -// Pass the Type* and the variable name and this prints out the variable
> -// declaration.
> -//
> -raw_ostream &CWriter::printType(raw_ostream &Out, Type *Ty,
> - bool isSigned, const std::string &NameSoFar,
> - bool IgnoreName, const AttrListPtr &PAL) {
> - if (Ty->isPrimitiveType() || Ty->isIntegerTy() || Ty->isVectorTy()) {
> - printSimpleType(Out, Ty, isSigned, NameSoFar);
> - return Out;
> - }
> -
> - switch (Ty->getTypeID()) {
> - case Type::FunctionTyID: {
> - FunctionType *FTy = cast<FunctionType>(Ty);
> - std::string tstr;
> - raw_string_ostream FunctionInnards(tstr);
> - FunctionInnards << " (" << NameSoFar << ") (";
> - unsigned Idx = 1;
> - for (FunctionType::param_iterator I = FTy->param_begin(),
> - E = FTy->param_end(); I != E; ++I) {
> - Type *ArgTy = *I;
> - if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
> - assert(ArgTy->isPointerTy());
> - ArgTy = cast<PointerType>(ArgTy)->getElementType();
> - }
> - if (I != FTy->param_begin())
> - FunctionInnards << ", ";
> - printType(FunctionInnards, ArgTy,
> - /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
> - ++Idx;
> - }
> - if (FTy->isVarArg()) {
> - if (!FTy->getNumParams())
> - FunctionInnards << " int"; //dummy argument for empty vaarg functs
> - FunctionInnards << ", ...";
> - } else if (!FTy->getNumParams()) {
> - FunctionInnards << "void";
> - }
> - FunctionInnards << ')';
> - printType(Out, FTy->getReturnType(),
> - /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), FunctionInnards.str());
> - return Out;
> - }
> - case Type::StructTyID: {
> - StructType *STy = cast<StructType>(Ty);
> -
> - // Check to see if the type is named.
> - if (!IgnoreName)
> - return Out << getStructName(STy) << ' ' << NameSoFar;
> -
> - Out << NameSoFar + " {\n";
> - unsigned Idx = 0;
> - for (StructType::element_iterator I = STy->element_begin(),
> - E = STy->element_end(); I != E; ++I) {
> - Out << " ";
> - printType(Out, *I, false, "field" + utostr(Idx++));
> - Out << ";\n";
> - }
> - Out << '}';
> - if (STy->isPacked())
> - Out << " __attribute__ ((packed))";
> - return Out;
> - }
> -
> - case Type::PointerTyID: {
> - PointerType *PTy = cast<PointerType>(Ty);
> - std::string ptrName = "*" + NameSoFar;
> -
> - if (PTy->getElementType()->isArrayTy() ||
> - PTy->getElementType()->isVectorTy())
> - ptrName = "(" + ptrName + ")";
> -
> - if (!PAL.isEmpty())
> - // Must be a function ptr cast!
> - return printType(Out, PTy->getElementType(), false, ptrName, true, PAL);
> - return printType(Out, PTy->getElementType(), false, ptrName);
> - }
> -
> - case Type::ArrayTyID: {
> - ArrayType *ATy = cast<ArrayType>(Ty);
> - unsigned NumElements = ATy->getNumElements();
> - if (NumElements == 0) NumElements = 1;
> - // Arrays are wrapped in structs to allow them to have normal
> - // value semantics (avoiding the array "decay").
> - Out << NameSoFar << " { ";
> - printType(Out, ATy->getElementType(), false,
> - "array[" + utostr(NumElements) + "]");
> - return Out << "; }";
> - }
> -
> - default:
> - llvm_unreachable("Unhandled case in getTypeProps!");
> - }
> -}
> -
> -void CWriter::printConstantArray(ConstantArray *CPA, bool Static) {
> - Out << "{ ";
> - printConstant(cast<Constant>(CPA->getOperand(0)), Static);
> - for (unsigned i = 1, e = CPA->getNumOperands(); i != e; ++i) {
> - Out << ", ";
> - printConstant(cast<Constant>(CPA->getOperand(i)), Static);
> - }
> - Out << " }";
> -}
> -
> -void CWriter::printConstantVector(ConstantVector *CP, bool Static) {
> - Out << "{ ";
> - printConstant(cast<Constant>(CP->getOperand(0)), Static);
> - for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
> - Out << ", ";
> - printConstant(cast<Constant>(CP->getOperand(i)), Static);
> - }
> - Out << " }";
> -}
> -
> -void CWriter::printConstantDataSequential(ConstantDataSequential *CDS,
> - bool Static) {
> - // As a special case, print the array as a string if it is an array of
> - // ubytes or an array of sbytes with positive values.
> - //
> - if (CDS->isCString()) {
> - Out << '\"';
> - // Keep track of whether the last number was a hexadecimal escape.
> - bool LastWasHex = false;
> -
> - StringRef Bytes = CDS->getAsCString();
> -
> - // Do not include the last character, which we know is null
> - for (unsigned i = 0, e = Bytes.size(); i != e; ++i) {
> - unsigned char C = Bytes[i];
> -
> - // Print it out literally if it is a printable character. The only thing
> - // to be careful about is when the last letter output was a hex escape
> - // code, in which case we have to be careful not to print out hex digits
> - // explicitly (the C compiler thinks it is a continuation of the previous
> - // character, sheesh...)
> - //
> - if (isprint(C) && (!LastWasHex || !isxdigit(C))) {
> - LastWasHex = false;
> - if (C == '"' || C == '\\')
> - Out << "\\" << (char)C;
> - else
> - Out << (char)C;
> - } else {
> - LastWasHex = false;
> - switch (C) {
> - case '\n': Out << "\\n"; break;
> - case '\t': Out << "\\t"; break;
> - case '\r': Out << "\\r"; break;
> - case '\v': Out << "\\v"; break;
> - case '\a': Out << "\\a"; break;
> - case '\"': Out << "\\\""; break;
> - case '\'': Out << "\\\'"; break;
> - default:
> - Out << "\\x";
> - Out << (char)(( C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'));
> - Out << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
> - LastWasHex = true;
> - break;
> - }
> - }
> - }
> - Out << '\"';
> - } else {
> - Out << "{ ";
> - printConstant(CDS->getElementAsConstant(0), Static);
> - for (unsigned i = 1, e = CDS->getNumElements(); i != e; ++i) {
> - Out << ", ";
> - printConstant(CDS->getElementAsConstant(i), Static);
> - }
> - Out << " }";
> - }
> -}
> -
> -
> -// isFPCSafeToPrint - Returns true if we may assume that CFP may be written out
> -// textually as a double (rather than as a reference to a stack-allocated
> -// variable). We decide this by converting CFP to a string and back into a
> -// double, and then checking whether the conversion results in a bit-equal
> -// double to the original value of CFP. This depends on us and the target C
> -// compiler agreeing on the conversion process (which is pretty likely since we
> -// only deal in IEEE FP).
> -//
> -static bool isFPCSafeToPrint(const ConstantFP *CFP) {
> - bool ignored;
> - // Do long doubles in hex for now.
> - if (CFP->getType() != Type::getFloatTy(CFP->getContext()) &&
> - CFP->getType() != Type::getDoubleTy(CFP->getContext()))
> - return false;
> - APFloat APF = APFloat(CFP->getValueAPF()); // copy
> - if (CFP->getType() == Type::getFloatTy(CFP->getContext()))
> - APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored);
> -#if HAVE_PRINTF_A && ENABLE_CBE_PRINTF_A
> - char Buffer[100];
> - sprintf(Buffer, "%a", APF.convertToDouble());
> - if (!strncmp(Buffer, "0x", 2) ||
> - !strncmp(Buffer, "-0x", 3) ||
> - !strncmp(Buffer, "+0x", 3))
> - return APF.bitwiseIsEqual(APFloat(atof(Buffer)));
> - return false;
> -#else
> - std::string StrVal = ftostr(APF);
> -
> - while (StrVal[0] == ' ')
> - StrVal.erase(StrVal.begin());
> -
> - // Check to make sure that the stringized number is not some string like "Inf"
> - // or NaN. Check that the string matches the "[-+]?[0-9]" regex.
> - if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
> - ((StrVal[0] == '-' || StrVal[0] == '+') &&
> - (StrVal[1] >= '0' && StrVal[1] <= '9')))
> - // Reparse stringized version!
> - return APF.bitwiseIsEqual(APFloat(atof(StrVal.c_str())));
> - return false;
> -#endif
> -}
> -
> -/// Print out the casting for a cast operation. This does the double casting
> -/// necessary for conversion to the destination type, if necessary.
> -/// @brief Print a cast
> -void CWriter::printCast(unsigned opc, Type *SrcTy, Type *DstTy) {
> - // Print the destination type cast
> - switch (opc) {
> - case Instruction::UIToFP:
> - case Instruction::SIToFP:
> - case Instruction::IntToPtr:
> - case Instruction::Trunc:
> - case Instruction::BitCast:
> - case Instruction::FPExt:
> - case Instruction::FPTrunc: // For these the DstTy sign doesn't matter
> - Out << '(';
> - printType(Out, DstTy);
> - Out << ')';
> - break;
> - case Instruction::ZExt:
> - case Instruction::PtrToInt:
> - case Instruction::FPToUI: // For these, make sure we get an unsigned dest
> - Out << '(';
> - printSimpleType(Out, DstTy, false);
> - Out << ')';
> - break;
> - case Instruction::SExt:
> - case Instruction::FPToSI: // For these, make sure we get a signed dest
> - Out << '(';
> - printSimpleType(Out, DstTy, true);
> - Out << ')';
> - break;
> - default:
> - llvm_unreachable("Invalid cast opcode");
> - }
> -
> - // Print the source type cast
> - switch (opc) {
> - case Instruction::UIToFP:
> - case Instruction::ZExt:
> - Out << '(';
> - printSimpleType(Out, SrcTy, false);
> - Out << ')';
> - break;
> - case Instruction::SIToFP:
> - case Instruction::SExt:
> - Out << '(';
> - printSimpleType(Out, SrcTy, true);
> - Out << ')';
> - break;
> - case Instruction::IntToPtr:
> - case Instruction::PtrToInt:
> - // Avoid "cast to pointer from integer of different size" warnings
> - Out << "(unsigned long)";
> - break;
> - case Instruction::Trunc:
> - case Instruction::BitCast:
> - case Instruction::FPExt:
> - case Instruction::FPTrunc:
> - case Instruction::FPToSI:
> - case Instruction::FPToUI:
> - break; // These don't need a source cast.
> - default:
> - llvm_unreachable("Invalid cast opcode");
> - }
> -}
> -
> -// printConstant - The LLVM Constant to C Constant converter.
> -void CWriter::printConstant(Constant *CPV, bool Static) {
> - if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CPV)) {
> - switch (CE->getOpcode()) {
> - case Instruction::Trunc:
> - case Instruction::ZExt:
> - case Instruction::SExt:
> - case Instruction::FPTrunc:
> - case Instruction::FPExt:
> - case Instruction::UIToFP:
> - case Instruction::SIToFP:
> - case Instruction::FPToUI:
> - case Instruction::FPToSI:
> - case Instruction::PtrToInt:
> - case Instruction::IntToPtr:
> - case Instruction::BitCast:
> - Out << "(";
> - printCast(CE->getOpcode(), CE->getOperand(0)->getType(), CE->getType());
> - if (CE->getOpcode() == Instruction::SExt &&
> - CE->getOperand(0)->getType() == Type::getInt1Ty(CPV->getContext())) {
> - // Make sure we really sext from bool here by subtracting from 0
> - Out << "0-";
> - }
> - printConstant(CE->getOperand(0), Static);
> - if (CE->getType() == Type::getInt1Ty(CPV->getContext()) &&
> - (CE->getOpcode() == Instruction::Trunc ||
> - CE->getOpcode() == Instruction::FPToUI ||
> - CE->getOpcode() == Instruction::FPToSI ||
> - CE->getOpcode() == Instruction::PtrToInt)) {
> - // Make sure we really truncate to bool here by anding with 1
> - Out << "&1u";
> - }
> - Out << ')';
> - return;
> -
> - case Instruction::GetElementPtr:
> - Out << "(";
> - printGEPExpression(CE->getOperand(0), gep_type_begin(CPV),
> - gep_type_end(CPV), Static);
> - Out << ")";
> - return;
> - case Instruction::Select:
> - Out << '(';
> - printConstant(CE->getOperand(0), Static);
> - Out << '?';
> - printConstant(CE->getOperand(1), Static);
> - Out << ':';
> - printConstant(CE->getOperand(2), Static);
> - Out << ')';
> - return;
> - case Instruction::Add:
> - case Instruction::FAdd:
> - case Instruction::Sub:
> - case Instruction::FSub:
> - case Instruction::Mul:
> - case Instruction::FMul:
> - case Instruction::SDiv:
> - case Instruction::UDiv:
> - case Instruction::FDiv:
> - case Instruction::URem:
> - case Instruction::SRem:
> - case Instruction::FRem:
> - case Instruction::And:
> - case Instruction::Or:
> - case Instruction::Xor:
> - case Instruction::ICmp:
> - case Instruction::Shl:
> - case Instruction::LShr:
> - case Instruction::AShr:
> - {
> - Out << '(';
> - bool NeedsClosingParens = printConstExprCast(CE, Static);
> - printConstantWithCast(CE->getOperand(0), CE->getOpcode());
> - switch (CE->getOpcode()) {
> - case Instruction::Add:
> - case Instruction::FAdd: Out << " + "; break;
> - case Instruction::Sub:
> - case Instruction::FSub: Out << " - "; break;
> - case Instruction::Mul:
> - case Instruction::FMul: Out << " * "; break;
> - case Instruction::URem:
> - case Instruction::SRem:
> - case Instruction::FRem: Out << " % "; break;
> - case Instruction::UDiv:
> - case Instruction::SDiv:
> - case Instruction::FDiv: Out << " / "; break;
> - case Instruction::And: Out << " & "; break;
> - case Instruction::Or: Out << " | "; break;
> - case Instruction::Xor: Out << " ^ "; break;
> - case Instruction::Shl: Out << " << "; break;
> - case Instruction::LShr:
> - case Instruction::AShr: Out << " >> "; break;
> - case Instruction::ICmp:
> - switch (CE->getPredicate()) {
> - case ICmpInst::ICMP_EQ: Out << " == "; break;
> - case ICmpInst::ICMP_NE: Out << " != "; break;
> - case ICmpInst::ICMP_SLT:
> - case ICmpInst::ICMP_ULT: Out << " < "; break;
> - case ICmpInst::ICMP_SLE:
> - case ICmpInst::ICMP_ULE: Out << " <= "; break;
> - case ICmpInst::ICMP_SGT:
> - case ICmpInst::ICMP_UGT: Out << " > "; break;
> - case ICmpInst::ICMP_SGE:
> - case ICmpInst::ICMP_UGE: Out << " >= "; break;
> - default: llvm_unreachable("Illegal ICmp predicate");
> - }
> - break;
> - default: llvm_unreachable("Illegal opcode here!");
> - }
> - printConstantWithCast(CE->getOperand(1), CE->getOpcode());
> - if (NeedsClosingParens)
> - Out << "))";
> - Out << ')';
> - return;
> - }
> - case Instruction::FCmp: {
> - Out << '(';
> - bool NeedsClosingParens = printConstExprCast(CE, Static);
> - if (CE->getPredicate() == FCmpInst::FCMP_FALSE)
> - Out << "0";
> - else if (CE->getPredicate() == FCmpInst::FCMP_TRUE)
> - Out << "1";
> - else {
> - const char* op = 0;
> - switch (CE->getPredicate()) {
> - default: llvm_unreachable("Illegal FCmp predicate");
> - case FCmpInst::FCMP_ORD: op = "ord"; break;
> - case FCmpInst::FCMP_UNO: op = "uno"; break;
> - case FCmpInst::FCMP_UEQ: op = "ueq"; break;
> - case FCmpInst::FCMP_UNE: op = "une"; break;
> - case FCmpInst::FCMP_ULT: op = "ult"; break;
> - case FCmpInst::FCMP_ULE: op = "ule"; break;
> - case FCmpInst::FCMP_UGT: op = "ugt"; break;
> - case FCmpInst::FCMP_UGE: op = "uge"; break;
> - case FCmpInst::FCMP_OEQ: op = "oeq"; break;
> - case FCmpInst::FCMP_ONE: op = "one"; break;
> - case FCmpInst::FCMP_OLT: op = "olt"; break;
> - case FCmpInst::FCMP_OLE: op = "ole"; break;
> - case FCmpInst::FCMP_OGT: op = "ogt"; break;
> - case FCmpInst::FCMP_OGE: op = "oge"; break;
> - }
> - Out << "llvm_fcmp_" << op << "(";
> - printConstantWithCast(CE->getOperand(0), CE->getOpcode());
> - Out << ", ";
> - printConstantWithCast(CE->getOperand(1), CE->getOpcode());
> - Out << ")";
> - }
> - if (NeedsClosingParens)
> - Out << "))";
> - Out << ')';
> - return;
> - }
> - default:
> -#ifndef NDEBUG
> - errs() << "CWriter Error: Unhandled constant expression: "
> - << *CE << "\n";
> -#endif
> - llvm_unreachable(0);
> - }
> - } else if (isa<UndefValue>(CPV) && CPV->getType()->isSingleValueType()) {
> - Out << "((";
> - printType(Out, CPV->getType()); // sign doesn't matter
> - Out << ")/*UNDEF*/";
> - if (!CPV->getType()->isVectorTy()) {
> - Out << "0)";
> - } else {
> - Out << "{})";
> - }
> - return;
> - }
> -
> - if (ConstantInt *CI = dyn_cast<ConstantInt>(CPV)) {
> - Type* Ty = CI->getType();
> - if (Ty == Type::getInt1Ty(CPV->getContext()))
> - Out << (CI->getZExtValue() ? '1' : '0');
> - else if (Ty == Type::getInt32Ty(CPV->getContext()))
> - Out << CI->getZExtValue() << 'u';
> - else if (Ty->getPrimitiveSizeInBits() > 32)
> - Out << CI->getZExtValue() << "ull";
> - else {
> - Out << "((";
> - printSimpleType(Out, Ty, false) << ')';
> - if (CI->isMinValue(true))
> - Out << CI->getZExtValue() << 'u';
> - else
> - Out << CI->getSExtValue();
> - Out << ')';
> - }
> - return;
> - }
> -
> - switch (CPV->getType()->getTypeID()) {
> - case Type::FloatTyID:
> - case Type::DoubleTyID:
> - case Type::X86_FP80TyID:
> - case Type::PPC_FP128TyID:
> - case Type::FP128TyID: {
> - ConstantFP *FPC = cast<ConstantFP>(CPV);
> - std::map<const ConstantFP*, unsigned>::iterator I = FPConstantMap.find(FPC);
> - if (I != FPConstantMap.end()) {
> - // Because of FP precision problems we must load from a stack allocated
> - // value that holds the value in hex.
> - Out << "(*(" << (FPC->getType() == Type::getFloatTy(CPV->getContext()) ?
> - "float" :
> - FPC->getType() == Type::getDoubleTy(CPV->getContext()) ?
> - "double" :
> - "long double")
> - << "*)&FPConstant" << I->second << ')';
> - } else {
> - double V;
> - if (FPC->getType() == Type::getFloatTy(CPV->getContext()))
> - V = FPC->getValueAPF().convertToFloat();
> - else if (FPC->getType() == Type::getDoubleTy(CPV->getContext()))
> - V = FPC->getValueAPF().convertToDouble();
> - else {
> - // Long double. Convert the number to double, discarding precision.
> - // This is not awesome, but it at least makes the CBE output somewhat
> - // useful.
> - APFloat Tmp = FPC->getValueAPF();
> - bool LosesInfo;
> - Tmp.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &LosesInfo);
> - V = Tmp.convertToDouble();
> - }
> -
> - if (IsNAN(V)) {
> - // The value is NaN
> -
> - // FIXME the actual NaN bits should be emitted.
> - // The prefix for a quiet NaN is 0x7FF8. For a signalling NaN,
> - // it's 0x7ff4.
> - const unsigned long QuietNaN = 0x7ff8UL;
> - //const unsigned long SignalNaN = 0x7ff4UL;
> -
> - // We need to grab the first part of the FP #
> - char Buffer[100];
> -
> - uint64_t ll = DoubleToBits(V);
> - sprintf(Buffer, "0x%llx", static_cast<long long>(ll));
> -
> - std::string Num(&Buffer[0], &Buffer[6]);
> - unsigned long Val = strtoul(Num.c_str(), 0, 16);
> -
> - if (FPC->getType() == Type::getFloatTy(FPC->getContext()))
> - Out << "LLVM_NAN" << (Val == QuietNaN ? "" : "S") << "F(\""
> - << Buffer << "\") /*nan*/ ";
> - else
> - Out << "LLVM_NAN" << (Val == QuietNaN ? "" : "S") << "(\""
> - << Buffer << "\") /*nan*/ ";
> - } else if (IsInf(V)) {
> - // The value is Inf
> - if (V < 0) Out << '-';
> - Out << "LLVM_INF" <<
> - (FPC->getType() == Type::getFloatTy(FPC->getContext()) ? "F" : "")
> - << " /*inf*/ ";
> - } else {
> - std::string Num;
> -#if HAVE_PRINTF_A && ENABLE_CBE_PRINTF_A
> - // Print out the constant as a floating point number.
> - char Buffer[100];
> - sprintf(Buffer, "%a", V);
> - Num = Buffer;
> -#else
> - Num = ftostr(FPC->getValueAPF());
> -#endif
> - Out << Num;
> - }
> - }
> - break;
> - }
> -
> - case Type::ArrayTyID:
> - // Use C99 compound expression literal initializer syntax.
> - if (!Static) {
> - Out << "(";
> - printType(Out, CPV->getType());
> - Out << ")";
> - }
> - Out << "{ "; // Arrays are wrapped in struct types.
> - if (ConstantArray *CA = dyn_cast<ConstantArray>(CPV)) {
> - printConstantArray(CA, Static);
> - } else if (ConstantDataSequential *CDS =
> - dyn_cast<ConstantDataSequential>(CPV)) {
> - printConstantDataSequential(CDS, Static);
> - } else {
> - assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
> - ArrayType *AT = cast<ArrayType>(CPV->getType());
> - Out << '{';
> - if (AT->getNumElements()) {
> - Out << ' ';
> - Constant *CZ = Constant::getNullValue(AT->getElementType());
> - printConstant(CZ, Static);
> - for (unsigned i = 1, e = AT->getNumElements(); i != e; ++i) {
> - Out << ", ";
> - printConstant(CZ, Static);
> - }
> - }
> - Out << " }";
> - }
> - Out << " }"; // Arrays are wrapped in struct types.
> - break;
> -
> - case Type::VectorTyID:
> - // Use C99 compound expression literal initializer syntax.
> - if (!Static) {
> - Out << "(";
> - printType(Out, CPV->getType());
> - Out << ")";
> - }
> - if (ConstantVector *CV = dyn_cast<ConstantVector>(CPV)) {
> - printConstantVector(CV, Static);
> - } else if (ConstantDataSequential *CDS =
> - dyn_cast<ConstantDataSequential>(CPV)) {
> - printConstantDataSequential(CDS, Static);
> - } else {
> - assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
> - VectorType *VT = cast<VectorType>(CPV->getType());
> - Out << "{ ";
> - Constant *CZ = Constant::getNullValue(VT->getElementType());
> - printConstant(CZ, Static);
> - for (unsigned i = 1, e = VT->getNumElements(); i != e; ++i) {
> - Out << ", ";
> - printConstant(CZ, Static);
> - }
> - Out << " }";
> - }
> - break;
> -
> - case Type::StructTyID:
> - // Use C99 compound expression literal initializer syntax.
> - if (!Static) {
> - Out << "(";
> - printType(Out, CPV->getType());
> - Out << ")";
> - }
> - if (isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV)) {
> - StructType *ST = cast<StructType>(CPV->getType());
> - Out << '{';
> - if (ST->getNumElements()) {
> - Out << ' ';
> - printConstant(Constant::getNullValue(ST->getElementType(0)), Static);
> - for (unsigned i = 1, e = ST->getNumElements(); i != e; ++i) {
> - Out << ", ";
> - printConstant(Constant::getNullValue(ST->getElementType(i)), Static);
> - }
> - }
> - Out << " }";
> - } else {
> - Out << '{';
> - if (CPV->getNumOperands()) {
> - Out << ' ';
> - printConstant(cast<Constant>(CPV->getOperand(0)), Static);
> - for (unsigned i = 1, e = CPV->getNumOperands(); i != e; ++i) {
> - Out << ", ";
> - printConstant(cast<Constant>(CPV->getOperand(i)), Static);
> - }
> - }
> - Out << " }";
> - }
> - break;
> -
> - case Type::PointerTyID:
> - if (isa<ConstantPointerNull>(CPV)) {
> - Out << "((";
> - printType(Out, CPV->getType()); // sign doesn't matter
> - Out << ")/*NULL*/0)";
> - break;
> - } else if (GlobalValue *GV = dyn_cast<GlobalValue>(CPV)) {
> - writeOperand(GV, Static);
> - break;
> - }
> - // FALL THROUGH
> - default:
> -#ifndef NDEBUG
> - errs() << "Unknown constant type: " << *CPV << "\n";
> -#endif
> - llvm_unreachable(0);
> - }
> -}
> -
> -// Some constant expressions need to be casted back to the original types
> -// because their operands were casted to the expected type. This function takes
> -// care of detecting that case and printing the cast for the ConstantExpr.
> -bool CWriter::printConstExprCast(const ConstantExpr* CE, bool Static) {
> - bool NeedsExplicitCast = false;
> - Type *Ty = CE->getOperand(0)->getType();
> - bool TypeIsSigned = false;
> - switch (CE->getOpcode()) {
> - case Instruction::Add:
> - case Instruction::Sub:
> - case Instruction::Mul:
> - // We need to cast integer arithmetic so that it is always performed
> - // as unsigned, to avoid undefined behavior on overflow.
> - case Instruction::LShr:
> - case Instruction::URem:
> - case Instruction::UDiv: NeedsExplicitCast = true; break;
> - case Instruction::AShr:
> - case Instruction::SRem:
> - case Instruction::SDiv: NeedsExplicitCast = true; TypeIsSigned = true; break;
> - case Instruction::SExt:
> - Ty = CE->getType();
> - NeedsExplicitCast = true;
> - TypeIsSigned = true;
> - break;
> - case Instruction::ZExt:
> - case Instruction::Trunc:
> - case Instruction::FPTrunc:
> - case Instruction::FPExt:
> - case Instruction::UIToFP:
> - case Instruction::SIToFP:
> - case Instruction::FPToUI:
> - case Instruction::FPToSI:
> - case Instruction::PtrToInt:
> - case Instruction::IntToPtr:
> - case Instruction::BitCast:
> - Ty = CE->getType();
> - NeedsExplicitCast = true;
> - break;
> - default: break;
> - }
> - if (NeedsExplicitCast) {
> - Out << "((";
> - if (Ty->isIntegerTy() && Ty != Type::getInt1Ty(Ty->getContext()))
> - printSimpleType(Out, Ty, TypeIsSigned);
> - else
> - printType(Out, Ty); // not integer, sign doesn't matter
> - Out << ")(";
> - }
> - return NeedsExplicitCast;
> -}
> -
> -// Print a constant assuming that it is the operand for a given Opcode. The
> -// opcodes that care about sign need to cast their operands to the expected
> -// type before the operation proceeds. This function does the casting.
> -void CWriter::printConstantWithCast(Constant* CPV, unsigned Opcode) {
> -
> - // Extract the operand's type, we'll need it.
> - Type* OpTy = CPV->getType();
> -
> - // Indicate whether to do the cast or not.
> - bool shouldCast = false;
> - bool typeIsSigned = false;
> -
> - // Based on the Opcode for which this Constant is being written, determine
> - // the new type to which the operand should be casted by setting the value
> - // of OpTy. If we change OpTy, also set shouldCast to true so it gets
> - // casted below.
> - switch (Opcode) {
> - default:
> - // for most instructions, it doesn't matter
> - break;
> - case Instruction::Add:
> - case Instruction::Sub:
> - case Instruction::Mul:
> - // We need to cast integer arithmetic so that it is always performed
> - // as unsigned, to avoid undefined behavior on overflow.
> - case Instruction::LShr:
> - case Instruction::UDiv:
> - case Instruction::URem:
> - shouldCast = true;
> - break;
> - case Instruction::AShr:
> - case Instruction::SDiv:
> - case Instruction::SRem:
> - shouldCast = true;
> - typeIsSigned = true;
> - break;
> - }
> -
> - // Write out the casted constant if we should, otherwise just write the
> - // operand.
> - if (shouldCast) {
> - Out << "((";
> - printSimpleType(Out, OpTy, typeIsSigned);
> - Out << ")";
> - printConstant(CPV, false);
> - Out << ")";
> - } else
> - printConstant(CPV, false);
> -}
> -
> -std::string CWriter::GetValueName(const Value *Operand) {
> -
> - // Resolve potential alias.
> - if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(Operand)) {
> - if (const Value *V = GA->resolveAliasedGlobal(false))
> - Operand = V;
> - }
> -
> - // Mangle globals with the standard mangler interface for LLC compatibility.
> - if (const GlobalValue *GV = dyn_cast<GlobalValue>(Operand)) {
> - SmallString<128> Str;
> - Mang->getNameWithPrefix(Str, GV, false);
> - return CBEMangle(Str.str().str());
> - }
> -
> - std::string Name = Operand->getName();
> -
> - if (Name.empty()) { // Assign unique names to local temporaries.
> - unsigned &No = AnonValueNumbers[Operand];
> - if (No == 0)
> - No = ++NextAnonValueNumber;
> - Name = "tmp__" + utostr(No);
> - }
> -
> - std::string VarName;
> - VarName.reserve(Name.capacity());
> -
> - for (std::string::iterator I = Name.begin(), E = Name.end();
> - I != E; ++I) {
> - char ch = *I;
> -
> - if (!((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
> - (ch >= '0' && ch <= '9') || ch == '_')) {
> - char buffer[5];
> - sprintf(buffer, "_%x_", ch);
> - VarName += buffer;
> - } else
> - VarName += ch;
> - }
> -
> - return "llvm_cbe_" + VarName;
> -}
> -
> -/// writeInstComputationInline - Emit the computation for the specified
> -/// instruction inline, with no destination provided.
> -void CWriter::writeInstComputationInline(Instruction &I) {
> - // We can't currently support integer types other than 1, 8, 16, 32, 64.
> - // Validate this.
> - Type *Ty = I.getType();
> - if (Ty->isIntegerTy() && (Ty!=Type::getInt1Ty(I.getContext()) &&
> - Ty!=Type::getInt8Ty(I.getContext()) &&
> - Ty!=Type::getInt16Ty(I.getContext()) &&
> - Ty!=Type::getInt32Ty(I.getContext()) &&
> - Ty!=Type::getInt64Ty(I.getContext()))) {
> - report_fatal_error("The C backend does not currently support integer "
> - "types of widths other than 1, 8, 16, 32, 64.\n"
> - "This is being tracked as PR 4158.");
> - }
> -
> - // If this is a non-trivial bool computation, make sure to truncate down to
> - // a 1 bit value. This is important because we want "add i1 x, y" to return
> - // "0" when x and y are true, not "2" for example.
> - bool NeedBoolTrunc = false;
> - if (I.getType() == Type::getInt1Ty(I.getContext()) &&
> - !isa<ICmpInst>(I) && !isa<FCmpInst>(I))
> - NeedBoolTrunc = true;
> -
> - if (NeedBoolTrunc)
> - Out << "((";
> -
> - visit(I);
> -
> - if (NeedBoolTrunc)
> - Out << ")&1)";
> -}
> -
> -
> -void CWriter::writeOperandInternal(Value *Operand, bool Static) {
> - if (Instruction *I = dyn_cast<Instruction>(Operand))
> - // Should we inline this instruction to build a tree?
> - if (isInlinableInst(*I) && !isDirectAlloca(I)) {
> - Out << '(';
> - writeInstComputationInline(*I);
> - Out << ')';
> - return;
> - }
> -
> - Constant* CPV = dyn_cast<Constant>(Operand);
> -
> - if (CPV && !isa<GlobalValue>(CPV))
> - printConstant(CPV, Static);
> - else
> - Out << GetValueName(Operand);
> -}
> -
> -void CWriter::writeOperand(Value *Operand, bool Static) {
> - bool isAddressImplicit = isAddressExposed(Operand);
> - if (isAddressImplicit)
> - Out << "(&"; // Global variables are referenced as their addresses by llvm
> -
> - writeOperandInternal(Operand, Static);
> -
> - if (isAddressImplicit)
> - Out << ')';
> -}
> -
> -// Some instructions need to have their result value casted back to the
> -// original types because their operands were casted to the expected type.
> -// This function takes care of detecting that case and printing the cast
> -// for the Instruction.
> -bool CWriter::writeInstructionCast(const Instruction &I) {
> - Type *Ty = I.getOperand(0)->getType();
> - switch (I.getOpcode()) {
> - case Instruction::Add:
> - case Instruction::Sub:
> - case Instruction::Mul:
> - // We need to cast integer arithmetic so that it is always performed
> - // as unsigned, to avoid undefined behavior on overflow.
> - case Instruction::LShr:
> - case Instruction::URem:
> - case Instruction::UDiv:
> - Out << "((";
> - printSimpleType(Out, Ty, false);
> - Out << ")(";
> - return true;
> - case Instruction::AShr:
> - case Instruction::SRem:
> - case Instruction::SDiv:
> - Out << "((";
> - printSimpleType(Out, Ty, true);
> - Out << ")(";
> - return true;
> - default: break;
> - }
> - return false;
> -}
> -
> -// Write the operand with a cast to another type based on the Opcode being used.
> -// This will be used in cases where an instruction has specific type
> -// requirements (usually signedness) for its operands.
> -void CWriter::writeOperandWithCast(Value* Operand, unsigned Opcode) {
> -
> - // Extract the operand's type, we'll need it.
> - Type* OpTy = Operand->getType();
> -
> - // Indicate whether to do the cast or not.
> - bool shouldCast = false;
> -
> - // Indicate whether the cast should be to a signed type or not.
> - bool castIsSigned = false;
> -
> - // Based on the Opcode for which this Operand is being written, determine
> - // the new type to which the operand should be casted by setting the value
> - // of OpTy. If we change OpTy, also set shouldCast to true.
> - switch (Opcode) {
> - default:
> - // for most instructions, it doesn't matter
> - break;
> - case Instruction::Add:
> - case Instruction::Sub:
> - case Instruction::Mul:
> - // We need to cast integer arithmetic so that it is always performed
> - // as unsigned, to avoid undefined behavior on overflow.
> - case Instruction::LShr:
> - case Instruction::UDiv:
> - case Instruction::URem: // Cast to unsigned first
> - shouldCast = true;
> - castIsSigned = false;
> - break;
> - case Instruction::GetElementPtr:
> - case Instruction::AShr:
> - case Instruction::SDiv:
> - case Instruction::SRem: // Cast to signed first
> - shouldCast = true;
> - castIsSigned = true;
> - break;
> - }
> -
> - // Write out the casted operand if we should, otherwise just write the
> - // operand.
> - if (shouldCast) {
> - Out << "((";
> - printSimpleType(Out, OpTy, castIsSigned);
> - Out << ")";
> - writeOperand(Operand);
> - Out << ")";
> - } else
> - writeOperand(Operand);
> -}
> -
> -// Write the operand with a cast to another type based on the icmp predicate
> -// being used.
> -void CWriter::writeOperandWithCast(Value* Operand, const ICmpInst &Cmp) {
> - // This has to do a cast to ensure the operand has the right signedness.
> - // Also, if the operand is a pointer, we make sure to cast to an integer when
> - // doing the comparison both for signedness and so that the C compiler doesn't
> - // optimize things like "p < NULL" to false (p may contain an integer value
> - // f.e.).
> - bool shouldCast = Cmp.isRelational();
> -
> - // Write out the casted operand if we should, otherwise just write the
> - // operand.
> - if (!shouldCast) {
> - writeOperand(Operand);
> - return;
> - }
> -
> - // Should this be a signed comparison? If so, convert to signed.
> - bool castIsSigned = Cmp.isSigned();
> -
> - // If the operand was a pointer, convert to a large integer type.
> - Type* OpTy = Operand->getType();
> - if (OpTy->isPointerTy())
> - OpTy = TD->getIntPtrType(Operand->getContext());
> -
> - Out << "((";
> - printSimpleType(Out, OpTy, castIsSigned);
> - Out << ")";
> - writeOperand(Operand);
> - Out << ")";
> -}
> -
> -// generateCompilerSpecificCode - This is where we add conditional compilation
> -// directives to cater to specific compilers as need be.
> -//
> -static void generateCompilerSpecificCode(formatted_raw_ostream& Out,
> - const TargetData *TD) {
> - // Alloca is hard to get, and we don't want to include stdlib.h here.
> - Out << "/* get a declaration for alloca */\n"
> - << "#if defined(__CYGWIN__) || defined(__MINGW32__)\n"
> - << "#define alloca(x) __builtin_alloca((x))\n"
> - << "#define _alloca(x) __builtin_alloca((x))\n"
> - << "#elif defined(__APPLE__)\n"
> - << "extern void *__builtin_alloca(unsigned long);\n"
> - << "#define alloca(x) __builtin_alloca(x)\n"
> - << "#define longjmp _longjmp\n"
> - << "#define setjmp _setjmp\n"
> - << "#elif defined(__sun__)\n"
> - << "#if defined(__sparcv9)\n"
> - << "extern void *__builtin_alloca(unsigned long);\n"
> - << "#else\n"
> - << "extern void *__builtin_alloca(unsigned int);\n"
> - << "#endif\n"
> - << "#define alloca(x) __builtin_alloca(x)\n"
> - << "#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__arm__)\n"
> - << "#define alloca(x) __builtin_alloca(x)\n"
> - << "#elif defined(_MSC_VER)\n"
> - << "#define inline _inline\n"
> - << "#define alloca(x) _alloca(x)\n"
> - << "#else\n"
> - << "#include <alloca.h>\n"
> - << "#endif\n\n";
> -
> - // We output GCC specific attributes to preserve 'linkonce'ness on globals.
> - // If we aren't being compiled with GCC, just drop these attributes.
> - Out << "#ifndef __GNUC__ /* Can only support \"linkonce\" vars with GCC */\n"
> - << "#define __attribute__(X)\n"
> - << "#endif\n\n";
> -
> - // On Mac OS X, "external weak" is spelled "__attribute__((weak_import))".
> - Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
> - << "#define __EXTERNAL_WEAK__ __attribute__((weak_import))\n"
> - << "#elif defined(__GNUC__)\n"
> - << "#define __EXTERNAL_WEAK__ __attribute__((weak))\n"
> - << "#else\n"
> - << "#define __EXTERNAL_WEAK__\n"
> - << "#endif\n\n";
> -
> - // For now, turn off the weak linkage attribute on Mac OS X. (See above.)
> - Out << "#if defined(__GNUC__) && defined(__APPLE_CC__)\n"
> - << "#define __ATTRIBUTE_WEAK__\n"
> - << "#elif defined(__GNUC__)\n"
> - << "#define __ATTRIBUTE_WEAK__ __attribute__((weak))\n"
> - << "#else\n"
> - << "#define __ATTRIBUTE_WEAK__\n"
> - << "#endif\n\n";
> -
> - // Add hidden visibility support. FIXME: APPLE_CC?
> - Out << "#if defined(__GNUC__)\n"
> - << "#define __HIDDEN__ __attribute__((visibility(\"hidden\")))\n"
> - << "#endif\n\n";
> -
> - // Define NaN and Inf as GCC builtins if using GCC, as 0 otherwise
> - // From the GCC documentation:
> - //
> - // double __builtin_nan (const char *str)
> - //
> - // This is an implementation of the ISO C99 function nan.
> - //
> - // Since ISO C99 defines this function in terms of strtod, which we do
> - // not implement, a description of the parsing is in order. The string is
> - // parsed as by strtol; that is, the base is recognized by leading 0 or
> - // 0x prefixes. The number parsed is placed in the significand such that
> - // the least significant bit of the number is at the least significant
> - // bit of the significand. The number is truncated to fit the significand
> - // field provided. The significand is forced to be a quiet NaN.
> - //
> - // This function, if given a string literal, is evaluated early enough
> - // that it is considered a compile-time constant.
> - //
> - // float __builtin_nanf (const char *str)
> - //
> - // Similar to __builtin_nan, except the return type is float.
> - //
> - // double __builtin_inf (void)
> - //
> - // Similar to __builtin_huge_val, except a warning is generated if the
> - // target floating-point format does not support infinities. This
> - // function is suitable for implementing the ISO C99 macro INFINITY.
> - //
> - // float __builtin_inff (void)
> - //
> - // Similar to __builtin_inf, except the return type is float.
> - Out << "#ifdef __GNUC__\n"
> - << "#define LLVM_NAN(NanStr) __builtin_nan(NanStr) /* Double */\n"
> - << "#define LLVM_NANF(NanStr) __builtin_nanf(NanStr) /* Float */\n"
> - << "#define LLVM_NANS(NanStr) __builtin_nans(NanStr) /* Double */\n"
> - << "#define LLVM_NANSF(NanStr) __builtin_nansf(NanStr) /* Float */\n"
> - << "#define LLVM_INF __builtin_inf() /* Double */\n"
> - << "#define LLVM_INFF __builtin_inff() /* Float */\n"
> - << "#define LLVM_PREFETCH(addr,rw,locality) "
> - "__builtin_prefetch(addr,rw,locality)\n"
> - << "#define __ATTRIBUTE_CTOR__ __attribute__((constructor))\n"
> - << "#define __ATTRIBUTE_DTOR__ __attribute__((destructor))\n"
> - << "#define LLVM_ASM __asm__\n"
> - << "#else\n"
> - << "#define LLVM_NAN(NanStr) ((double)0.0) /* Double */\n"
> - << "#define LLVM_NANF(NanStr) 0.0F /* Float */\n"
> - << "#define LLVM_NANS(NanStr) ((double)0.0) /* Double */\n"
> - << "#define LLVM_NANSF(NanStr) 0.0F /* Float */\n"
> - << "#define LLVM_INF ((double)0.0) /* Double */\n"
> - << "#define LLVM_INFF 0.0F /* Float */\n"
> - << "#define LLVM_PREFETCH(addr,rw,locality) /* PREFETCH */\n"
> - << "#define __ATTRIBUTE_CTOR__\n"
> - << "#define __ATTRIBUTE_DTOR__\n"
> - << "#define LLVM_ASM(X)\n"
> - << "#endif\n\n";
> -
> - Out << "#if __GNUC__ < 4 /* Old GCC's, or compilers not GCC */ \n"
> - << "#define __builtin_stack_save() 0 /* not implemented */\n"
> - << "#define __builtin_stack_restore(X) /* noop */\n"
> - << "#endif\n\n";
> -
> - // Output typedefs for 128-bit integers. If these are needed with a
> - // 32-bit target or with a C compiler that doesn't support mode(TI),
> - // more drastic measures will be needed.
> - Out << "#if __GNUC__ && __LP64__ /* 128-bit integer types */\n"
> - << "typedef int __attribute__((mode(TI))) llvmInt128;\n"
> - << "typedef unsigned __attribute__((mode(TI))) llvmUInt128;\n"
> - << "#endif\n\n";
> -
> - // Output target-specific code that should be inserted into main.
> - Out << "#define CODE_FOR_MAIN() /* Any target-specific code for main()*/\n";
> -}
> -
> -/// FindStaticTors - Given a static ctor/dtor list, unpack its contents into
> -/// the StaticTors set.
> -static void FindStaticTors(GlobalVariable *GV, std::set<Function*> &StaticTors){
> - ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
> - if (!InitList) return;
> -
> - for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
> - if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
> - if (CS->getNumOperands() != 2) return; // Not array of 2-element structs.
> -
> - if (CS->getOperand(1)->isNullValue())
> - return; // Found a null terminator, exit printing.
> - Constant *FP = CS->getOperand(1);
> - if (ConstantExpr *CE = dyn_cast<ConstantExpr>(FP))
> - if (CE->isCast())
> - FP = CE->getOperand(0);
> - if (Function *F = dyn_cast<Function>(FP))
> - StaticTors.insert(F);
> - }
> -}
> -
> -enum SpecialGlobalClass {
> - NotSpecial = 0,
> - GlobalCtors, GlobalDtors,
> - NotPrinted
> -};
> -
> -/// getGlobalVariableClass - If this is a global that is specially recognized
> -/// by LLVM, return a code that indicates how we should handle it.
> -static SpecialGlobalClass getGlobalVariableClass(const GlobalVariable *GV) {
> - // If this is a global ctors/dtors list, handle it now.
> - if (GV->hasAppendingLinkage() && GV->use_empty()) {
> - if (GV->getName() == "llvm.global_ctors")
> - return GlobalCtors;
> - else if (GV->getName() == "llvm.global_dtors")
> - return GlobalDtors;
> - }
> -
> - // Otherwise, if it is other metadata, don't print it. This catches things
> - // like debug information.
> - if (GV->getSection() == "llvm.metadata")
> - return NotPrinted;
> -
> - return NotSpecial;
> -}
> -
> -// PrintEscapedString - Print each character of the specified string, escaping
> -// it if it is not printable or if it is an escape char.
> -static void PrintEscapedString(const char *Str, unsigned Length,
> - raw_ostream &Out) {
> - for (unsigned i = 0; i != Length; ++i) {
> - unsigned char C = Str[i];
> - if (isprint(C) && C != '\\' && C != '"')
> - Out << C;
> - else if (C == '\\')
> - Out << "\\\\";
> - else if (C == '\"')
> - Out << "\\\"";
> - else if (C == '\t')
> - Out << "\\t";
> - else
> - Out << "\\x" << hexdigit(C >> 4) << hexdigit(C & 0x0F);
> - }
> -}
> -
> -// PrintEscapedString - Print each character of the specified string, escaping
> -// it if it is not printable or if it is an escape char.
> -static void PrintEscapedString(const std::string &Str, raw_ostream &Out) {
> - PrintEscapedString(Str.c_str(), Str.size(), Out);
> -}
> -
> -bool CWriter::doInitialization(Module &M) {
> - FunctionPass::doInitialization(M);
> -
> - // Initialize
> - TheModule = &M;
> -
> - TD = new TargetData(&M);
> - IL = new IntrinsicLowering(*TD);
> - IL->AddPrototypes(M);
> -
> -#if 0
> - std::string Triple = TheModule->getTargetTriple();
> - if (Triple.empty())
> - Triple = llvm::sys::getDefaultTargetTriple();
> -
> - std::string E;
> - if (const Target *Match = TargetRegistry::lookupTarget(Triple, E))
> - TAsm = Match->createMCAsmInfo(Triple);
> -#endif
> - TAsm = new CBEMCAsmInfo();
> - MRI = new MCRegisterInfo();
> - TCtx = new MCContext(*TAsm, *MRI, NULL);
> - Mang = new Mangler(*TCtx, *TD);
> -
> - // Keep track of which functions are static ctors/dtors so they can have
> - // an attribute added to their prototypes.
> - std::set<Function*> StaticCtors, StaticDtors;
> - for (Module::global_iterator I = M.global_begin(), E = M.global_end();
> - I != E; ++I) {
> - switch (getGlobalVariableClass(I)) {
> - default: break;
> - case GlobalCtors:
> - FindStaticTors(I, StaticCtors);
> - break;
> - case GlobalDtors:
> - FindStaticTors(I, StaticDtors);
> - break;
> - }
> - }
> -
> - // get declaration for alloca
> - Out << "/* Provide Declarations */\n";
> - Out << "#include <stdarg.h>\n"; // Varargs support
> - Out << "#include <setjmp.h>\n"; // Unwind support
> - Out << "#include <limits.h>\n"; // With overflow intrinsics support.
> - generateCompilerSpecificCode(Out, TD);
> -
> - // Provide a definition for `bool' if not compiling with a C++ compiler.
> - Out << "\n"
> - << "#ifndef __cplusplus\ntypedef unsigned char bool;\n#endif\n"
> -
> - << "\n\n/* Support for floating point constants */\n"
> - << "typedef unsigned long long ConstantDoubleTy;\n"
> - << "typedef unsigned int ConstantFloatTy;\n"
> - << "typedef struct { unsigned long long f1; unsigned short f2; "
> - "unsigned short pad[3]; } ConstantFP80Ty;\n"
> - // This is used for both kinds of 128-bit long double; meaning differs.
> - << "typedef struct { unsigned long long f1; unsigned long long f2; }"
> - " ConstantFP128Ty;\n"
> - << "\n\n/* Global Declarations */\n";
> -
> - // First output all the declarations for the program, because C requires
> - // Functions & globals to be declared before they are used.
> - //
> - if (!M.getModuleInlineAsm().empty()) {
> - Out << "/* Module asm statements */\n"
> - << "asm(";
> -
> - // Split the string into lines, to make it easier to read the .ll file.
> - std::string Asm = M.getModuleInlineAsm();
> - size_t CurPos = 0;
> - size_t NewLine = Asm.find_first_of('\n', CurPos);
> - while (NewLine != std::string::npos) {
> - // We found a newline, print the portion of the asm string from the
> - // last newline up to this newline.
> - Out << "\"";
> - PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
> - Out);
> - Out << "\\n\"\n";
> - CurPos = NewLine+1;
> - NewLine = Asm.find_first_of('\n', CurPos);
> - }
> - Out << "\"";
> - PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
> - Out << "\");\n"
> - << "/* End Module asm statements */\n";
> - }
> -
> - // Loop over the symbol table, emitting all named constants.
> - printModuleTypes();
> -
> - // Global variable declarations...
> - if (!M.global_empty()) {
> - Out << "\n/* External Global Variable Declarations */\n";
> - for (Module::global_iterator I = M.global_begin(), E = M.global_end();
> - I != E; ++I) {
> -
> - if (I->hasExternalLinkage() || I->hasExternalWeakLinkage() ||
> - I->hasCommonLinkage())
> - Out << "extern ";
> - else if (I->hasDLLImportLinkage())
> - Out << "__declspec(dllimport) ";
> - else
> - continue; // Internal Global
> -
> - // Thread Local Storage
> - if (I->isThreadLocal())
> - Out << "__thread ";
> -
> - printType(Out, I->getType()->getElementType(), false, GetValueName(I));
> -
> - if (I->hasExternalWeakLinkage())
> - Out << " __EXTERNAL_WEAK__";
> - Out << ";\n";
> - }
> - }
> -
> - // Function declarations
> - Out << "\n/* Function Declarations */\n";
> - Out << "double fmod(double, double);\n"; // Support for FP rem
> - Out << "float fmodf(float, float);\n";
> - Out << "long double fmodl(long double, long double);\n";
> -
> - // Store the intrinsics which will be declared/defined below.
> - SmallVector<const Function*, 8> intrinsicsToDefine;
> -
> - for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
> - // Don't print declarations for intrinsic functions.
> - // Store the used intrinsics, which need to be explicitly defined.
> - if (I->isIntrinsic()) {
> - switch (I->getIntrinsicID()) {
> - default:
> - break;
> - case Intrinsic::uadd_with_overflow:
> - case Intrinsic::sadd_with_overflow:
> - intrinsicsToDefine.push_back(I);
> - break;
> - }
> - continue;
> - }
> -
> - if (I->getName() == "setjmp" ||
> - I->getName() == "longjmp" || I->getName() == "_setjmp")
> - continue;
> -
> - if (I->hasExternalWeakLinkage())
> - Out << "extern ";
> - printFunctionSignature(I, true);
> - if (I->hasWeakLinkage() || I->hasLinkOnceLinkage())
> - Out << " __ATTRIBUTE_WEAK__";
> - if (I->hasExternalWeakLinkage())
> - Out << " __EXTERNAL_WEAK__";
> - if (StaticCtors.count(I))
> - Out << " __ATTRIBUTE_CTOR__";
> - if (StaticDtors.count(I))
> - Out << " __ATTRIBUTE_DTOR__";
> - if (I->hasHiddenVisibility())
> - Out << " __HIDDEN__";
> -
> - if (I->hasName() && I->getName()[0] == 1)
> - Out << " LLVM_ASM(\"" << I->getName().substr(1) << "\")";
> -
> - Out << ";\n";
> - }
> -
> - // Output the global variable declarations
> - if (!M.global_empty()) {
> - Out << "\n\n/* Global Variable Declarations */\n";
> - for (Module::global_iterator I = M.global_begin(), E = M.global_end();
> - I != E; ++I)
> - if (!I->isDeclaration()) {
> - // Ignore special globals, such as debug info.
> - if (getGlobalVariableClass(I))
> - continue;
> -
> - if (I->hasLocalLinkage())
> - Out << "static ";
> - else
> - Out << "extern ";
> -
> - // Thread Local Storage
> - if (I->isThreadLocal())
> - Out << "__thread ";
> -
> - printType(Out, I->getType()->getElementType(), false,
> - GetValueName(I));
> -
> - if (I->hasLinkOnceLinkage())
> - Out << " __attribute__((common))";
> - else if (I->hasCommonLinkage()) // FIXME is this right?
> - Out << " __ATTRIBUTE_WEAK__";
> - else if (I->hasWeakLinkage())
> - Out << " __ATTRIBUTE_WEAK__";
> - else if (I->hasExternalWeakLinkage())
> - Out << " __EXTERNAL_WEAK__";
> - if (I->hasHiddenVisibility())
> - Out << " __HIDDEN__";
> - Out << ";\n";
> - }
> - }
> -
> - // Output the global variable definitions and contents...
> - if (!M.global_empty()) {
> - Out << "\n\n/* Global Variable Definitions and Initialization */\n";
> - for (Module::global_iterator I = M.global_begin(), E = M.global_end();
> - I != E; ++I)
> - if (!I->isDeclaration()) {
> - // Ignore special globals, such as debug info.
> - if (getGlobalVariableClass(I))
> - continue;
> -
> - if (I->hasLocalLinkage())
> - Out << "static ";
> - else if (I->hasDLLImportLinkage())
> - Out << "__declspec(dllimport) ";
> - else if (I->hasDLLExportLinkage())
> - Out << "__declspec(dllexport) ";
> -
> - // Thread Local Storage
> - if (I->isThreadLocal())
> - Out << "__thread ";
> -
> - printType(Out, I->getType()->getElementType(), false,
> - GetValueName(I));
> - if (I->hasLinkOnceLinkage())
> - Out << " __attribute__((common))";
> - else if (I->hasWeakLinkage())
> - Out << " __ATTRIBUTE_WEAK__";
> - else if (I->hasCommonLinkage())
> - Out << " __ATTRIBUTE_WEAK__";
> -
> - if (I->hasHiddenVisibility())
> - Out << " __HIDDEN__";
> -
> - // If the initializer is not null, emit the initializer. If it is null,
> - // we try to avoid emitting large amounts of zeros. The problem with
> - // this, however, occurs when the variable has weak linkage. In this
> - // case, the assembler will complain about the variable being both weak
> - // and common, so we disable this optimization.
> - // FIXME common linkage should avoid this problem.
> - if (!I->getInitializer()->isNullValue()) {
> - Out << " = " ;
> - writeOperand(I->getInitializer(), true);
> - } else if (I->hasWeakLinkage()) {
> - // We have to specify an initializer, but it doesn't have to be
> - // complete. If the value is an aggregate, print out { 0 }, and let
> - // the compiler figure out the rest of the zeros.
> - Out << " = " ;
> - if (I->getInitializer()->getType()->isStructTy() ||
> - I->getInitializer()->getType()->isVectorTy()) {
> - Out << "{ 0 }";
> - } else if (I->getInitializer()->getType()->isArrayTy()) {
> - // As with structs and vectors, but with an extra set of braces
> - // because arrays are wrapped in structs.
> - Out << "{ { 0 } }";
> - } else {
> - // Just print it out normally.
> - writeOperand(I->getInitializer(), true);
> - }
> - }
> - Out << ";\n";
> - }
> - }
> -
> - if (!M.empty())
> - Out << "\n\n/* Function Bodies */\n";
> -
> - // Emit some helper functions for dealing with FCMP instruction's
> - // predicates
> - Out << "static inline int llvm_fcmp_ord(double X, double Y) { ";
> - Out << "return X == X && Y == Y; }\n";
> - Out << "static inline int llvm_fcmp_uno(double X, double Y) { ";
> - Out << "return X != X || Y != Y; }\n";
> - Out << "static inline int llvm_fcmp_ueq(double X, double Y) { ";
> - Out << "return X == Y || llvm_fcmp_uno(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_une(double X, double Y) { ";
> - Out << "return X != Y; }\n";
> - Out << "static inline int llvm_fcmp_ult(double X, double Y) { ";
> - Out << "return X < Y || llvm_fcmp_uno(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_ugt(double X, double Y) { ";
> - Out << "return X > Y || llvm_fcmp_uno(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_ule(double X, double Y) { ";
> - Out << "return X <= Y || llvm_fcmp_uno(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_uge(double X, double Y) { ";
> - Out << "return X >= Y || llvm_fcmp_uno(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_oeq(double X, double Y) { ";
> - Out << "return X == Y ; }\n";
> - Out << "static inline int llvm_fcmp_one(double X, double Y) { ";
> - Out << "return X != Y && llvm_fcmp_ord(X, Y); }\n";
> - Out << "static inline int llvm_fcmp_olt(double X, double Y) { ";
> - Out << "return X < Y ; }\n";
> - Out << "static inline int llvm_fcmp_ogt(double X, double Y) { ";
> - Out << "return X > Y ; }\n";
> - Out << "static inline int llvm_fcmp_ole(double X, double Y) { ";
> - Out << "return X <= Y ; }\n";
> - Out << "static inline int llvm_fcmp_oge(double X, double Y) { ";
> - Out << "return X >= Y ; }\n";
> -
> - // Emit definitions of the intrinsics.
> - for (SmallVector<const Function*, 8>::const_iterator
> - I = intrinsicsToDefine.begin(),
> - E = intrinsicsToDefine.end(); I != E; ++I) {
> - printIntrinsicDefinition(**I, Out);
> - }
> -
> - return false;
> -}
> -
> -
> -/// Output all floating point constants that cannot be printed accurately...
> -void CWriter::printFloatingPointConstants(Function &F) {
> - // Scan the module for floating point constants. If any FP constant is used
> - // in the function, we want to redirect it here so that we do not depend on
> - // the precision of the printed form, unless the printed form preserves
> - // precision.
> - //
> - for (constant_iterator I = constant_begin(&F), E = constant_end(&F);
> - I != E; ++I)
> - printFloatingPointConstants(*I);
> -
> - Out << '\n';
> -}
> -
> -void CWriter::printFloatingPointConstants(const Constant *C) {
> - // If this is a constant expression, recursively check for constant fp values.
> - if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
> - for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i)
> - printFloatingPointConstants(CE->getOperand(i));
> - return;
> - }
> -
> - // Otherwise, check for a FP constant that we need to print.
> - const ConstantFP *FPC = dyn_cast<ConstantFP>(C);
> - if (FPC == 0 ||
> - // Do not put in FPConstantMap if safe.
> - isFPCSafeToPrint(FPC) ||
> - // Already printed this constant?
> - FPConstantMap.count(FPC))
> - return;
> -
> - FPConstantMap[FPC] = FPCounter; // Number the FP constants
> -
> - if (FPC->getType() == Type::getDoubleTy(FPC->getContext())) {
> - double Val = FPC->getValueAPF().convertToDouble();
> - uint64_t i = FPC->getValueAPF().bitcastToAPInt().getZExtValue();
> - Out << "static const ConstantDoubleTy FPConstant" << FPCounter++
> - << " = 0x" << utohexstr(i)
> - << "ULL; /* " << Val << " */\n";
> - } else if (FPC->getType() == Type::getFloatTy(FPC->getContext())) {
> - float Val = FPC->getValueAPF().convertToFloat();
> - uint32_t i = (uint32_t)FPC->getValueAPF().bitcastToAPInt().
> - getZExtValue();
> - Out << "static const ConstantFloatTy FPConstant" << FPCounter++
> - << " = 0x" << utohexstr(i)
> - << "U; /* " << Val << " */\n";
> - } else if (FPC->getType() == Type::getX86_FP80Ty(FPC->getContext())) {
> - // api needed to prevent premature destruction
> - APInt api = FPC->getValueAPF().bitcastToAPInt();
> - const uint64_t *p = api.getRawData();
> - Out << "static const ConstantFP80Ty FPConstant" << FPCounter++
> - << " = { 0x" << utohexstr(p[0])
> - << "ULL, 0x" << utohexstr((uint16_t)p[1]) << ",{0,0,0}"
> - << "}; /* Long double constant */\n";
> - } else if (FPC->getType() == Type::getPPC_FP128Ty(FPC->getContext()) ||
> - FPC->getType() == Type::getFP128Ty(FPC->getContext())) {
> - APInt api = FPC->getValueAPF().bitcastToAPInt();
> - const uint64_t *p = api.getRawData();
> - Out << "static const ConstantFP128Ty FPConstant" << FPCounter++
> - << " = { 0x"
> - << utohexstr(p[0]) << ", 0x" << utohexstr(p[1])
> - << "}; /* Long double constant */\n";
> -
> - } else {
> - llvm_unreachable("Unknown float type!");
> - }
> -}
> -
> -
> -/// printSymbolTable - Run through symbol table looking for type names. If a
> -/// type name is found, emit its declaration...
> -///
> -void CWriter::printModuleTypes() {
> - Out << "/* Helper union for bitcasts */\n";
> - Out << "typedef union {\n";
> - Out << " unsigned int Int32;\n";
> - Out << " unsigned long long Int64;\n";
> - Out << " float Float;\n";
> - Out << " double Double;\n";
> - Out << "} llvmBitCastUnion;\n";
> -
> - // Get all of the struct types used in the module.
> - std::vector<StructType*> StructTypes;
> - TheModule->findUsedStructTypes(StructTypes);
> -
> - if (StructTypes.empty()) return;
> -
> - Out << "/* Structure forward decls */\n";
> -
> - unsigned NextTypeID = 0;
> -
> - // If any of them are missing names, add a unique ID to UnnamedStructIDs.
> - // Print out forward declarations for structure types.
> - for (unsigned i = 0, e = StructTypes.size(); i != e; ++i) {
> - StructType *ST = StructTypes[i];
> -
> - if (ST->isLiteral() || ST->getName().empty())
> - UnnamedStructIDs[ST] = NextTypeID++;
> -
> - std::string Name = getStructName(ST);
> -
> - Out << "typedef struct " << Name << ' ' << Name << ";\n";
> - }
> -
> - Out << '\n';
> -
> - // Keep track of which structures have been printed so far.
> - SmallPtrSet<Type *, 16> StructPrinted;
> -
> - // Loop over all structures then push them into the stack so they are
> - // printed in the correct order.
> - //
> - Out << "/* Structure contents */\n";
> - for (unsigned i = 0, e = StructTypes.size(); i != e; ++i)
> - if (StructTypes[i]->isStructTy())
> - // Only print out used types!
> - printContainedStructs(StructTypes[i], StructPrinted);
> -}
> -
> -// Push the struct onto the stack and recursively push all structs
> -// this one depends on.
> -//
> -// TODO: Make this work properly with vector types
> -//
> -void CWriter::printContainedStructs(Type *Ty,
> - SmallPtrSet<Type *, 16> &StructPrinted) {
> - // Don't walk through pointers.
> - if (Ty->isPointerTy() || Ty->isPrimitiveType() || Ty->isIntegerTy())
> - return;
> -
> - // Print all contained types first.
> - for (Type::subtype_iterator I = Ty->subtype_begin(),
> - E = Ty->subtype_end(); I != E; ++I)
> - printContainedStructs(*I, StructPrinted);
> -
> - if (StructType *ST = dyn_cast<StructType>(Ty)) {
> - // Check to see if we have already printed this struct.
> - if (!StructPrinted.insert(Ty)) return;
> -
> - // Print structure type out.
> - printType(Out, ST, false, getStructName(ST), true);
> - Out << ";\n\n";
> - }
> -}
> -
> -void CWriter::printFunctionSignature(const Function *F, bool Prototype) {
> - /// isStructReturn - Should this function actually return a struct by-value?
> - bool isStructReturn = F->hasStructRetAttr();
> -
> - if (F->hasLocalLinkage()) Out << "static ";
> - if (F->hasDLLImportLinkage()) Out << "__declspec(dllimport) ";
> - if (F->hasDLLExportLinkage()) Out << "__declspec(dllexport) ";
> - switch (F->getCallingConv()) {
> - case CallingConv::X86_StdCall:
> - Out << "__attribute__((stdcall)) ";
> - break;
> - case CallingConv::X86_FastCall:
> - Out << "__attribute__((fastcall)) ";
> - break;
> - case CallingConv::X86_ThisCall:
> - Out << "__attribute__((thiscall)) ";
> - break;
> - default:
> - break;
> - }
> -
> - // Loop over the arguments, printing them...
> - FunctionType *FT = cast<FunctionType>(F->getFunctionType());
> - const AttrListPtr &PAL = F->getAttributes();
> -
> - std::string tstr;
> - raw_string_ostream FunctionInnards(tstr);
> -
> - // Print out the name...
> - FunctionInnards << GetValueName(F) << '(';
> -
> - bool PrintedArg = false;
> - if (!F->isDeclaration()) {
> - if (!F->arg_empty()) {
> - Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
> - unsigned Idx = 1;
> -
> - // If this is a struct-return function, don't print the hidden
> - // struct-return argument.
> - if (isStructReturn) {
> - assert(I != E && "Invalid struct return function!");
> - ++I;
> - ++Idx;
> - }
> -
> - std::string ArgName;
> - for (; I != E; ++I) {
> - if (PrintedArg) FunctionInnards << ", ";
> - if (I->hasName() || !Prototype)
> - ArgName = GetValueName(I);
> - else
> - ArgName = "";
> - Type *ArgTy = I->getType();
> - if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
> - ArgTy = cast<PointerType>(ArgTy)->getElementType();
> - ByValParams.insert(I);
> - }
> - printType(FunctionInnards, ArgTy,
> - /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt),
> - ArgName);
> - PrintedArg = true;
> - ++Idx;
> - }
> - }
> - } else {
> - // Loop over the arguments, printing them.
> - FunctionType::param_iterator I = FT->param_begin(), E = FT->param_end();
> - unsigned Idx = 1;
> -
> - // If this is a struct-return function, don't print the hidden
> - // struct-return argument.
> - if (isStructReturn) {
> - assert(I != E && "Invalid struct return function!");
> - ++I;
> - ++Idx;
> - }
> -
> - for (; I != E; ++I) {
> - if (PrintedArg) FunctionInnards << ", ";
> - Type *ArgTy = *I;
> - if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
> - assert(ArgTy->isPointerTy());
> - ArgTy = cast<PointerType>(ArgTy)->getElementType();
> - }
> - printType(FunctionInnards, ArgTy,
> - /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt));
> - PrintedArg = true;
> - ++Idx;
> - }
> - }
> -
> - if (!PrintedArg && FT->isVarArg()) {
> - FunctionInnards << "int vararg_dummy_arg";
> - PrintedArg = true;
> - }
> -
> - // Finish printing arguments... if this is a vararg function, print the ...,
> - // unless there are no known types, in which case, we just emit ().
> - //
> - if (FT->isVarArg() && PrintedArg) {
> - FunctionInnards << ",..."; // Output varargs portion of signature!
> - } else if (!FT->isVarArg() && !PrintedArg) {
> - FunctionInnards << "void"; // ret() -> ret(void) in C.
> - }
> - FunctionInnards << ')';
> -
> - // Get the return tpe for the function.
> - Type *RetTy;
> - if (!isStructReturn)
> - RetTy = F->getReturnType();
> - else {
> - // If this is a struct-return function, print the struct-return type.
> - RetTy = cast<PointerType>(FT->getParamType(0))->getElementType();
> - }
> -
> - // Print out the return type and the signature built above.
> - printType(Out, RetTy,
> - /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt),
> - FunctionInnards.str());
> -}
> -
> -static inline bool isFPIntBitCast(const Instruction &I) {
> - if (!isa<BitCastInst>(I))
> - return false;
> - Type *SrcTy = I.getOperand(0)->getType();
> - Type *DstTy = I.getType();
> - return (SrcTy->isFloatingPointTy() && DstTy->isIntegerTy()) ||
> - (DstTy->isFloatingPointTy() && SrcTy->isIntegerTy());
> -}
> -
> -void CWriter::printFunction(Function &F) {
> - /// isStructReturn - Should this function actually return a struct by-value?
> - bool isStructReturn = F.hasStructRetAttr();
> -
> - printFunctionSignature(&F, false);
> - Out << " {\n";
> -
> - // If this is a struct return function, handle the result with magic.
> - if (isStructReturn) {
> - Type *StructTy =
> - cast<PointerType>(F.arg_begin()->getType())->getElementType();
> - Out << " ";
> - printType(Out, StructTy, false, "StructReturn");
> - Out << "; /* Struct return temporary */\n";
> -
> - Out << " ";
> - printType(Out, F.arg_begin()->getType(), false,
> - GetValueName(F.arg_begin()));
> - Out << " = &StructReturn;\n";
> - }
> -
> - bool PrintedVar = false;
> -
> - // print local variable information for the function
> - for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ++I) {
> - if (const AllocaInst *AI = isDirectAlloca(&*I)) {
> - Out << " ";
> - printType(Out, AI->getAllocatedType(), false, GetValueName(AI));
> - Out << "; /* Address-exposed local */\n";
> - PrintedVar = true;
> - } else if (I->getType() != Type::getVoidTy(F.getContext()) &&
> - !isInlinableInst(*I)) {
> - Out << " ";
> - printType(Out, I->getType(), false, GetValueName(&*I));
> - Out << ";\n";
> -
> - if (isa<PHINode>(*I)) { // Print out PHI node temporaries as well...
> - Out << " ";
> - printType(Out, I->getType(), false,
> - GetValueName(&*I)+"__PHI_TEMPORARY");
> - Out << ";\n";
> - }
> - PrintedVar = true;
> - }
> - // We need a temporary for the BitCast to use so it can pluck a value out
> - // of a union to do the BitCast. This is separate from the need for a
> - // variable to hold the result of the BitCast.
> - if (isFPIntBitCast(*I)) {
> - Out << " llvmBitCastUnion " << GetValueName(&*I)
> - << "__BITCAST_TEMPORARY;\n";
> - PrintedVar = true;
> - }
> - }
> -
> - if (PrintedVar)
> - Out << '\n';
> -
> - if (F.hasExternalLinkage() && F.getName() == "main")
> - Out << " CODE_FOR_MAIN();\n";
> -
> - // print the basic blocks
> - for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
> - if (Loop *L = LI->getLoopFor(BB)) {
> - if (L->getHeader() == BB && L->getParentLoop() == 0)
> - printLoop(L);
> - } else {
> - printBasicBlock(BB);
> - }
> - }
> -
> - Out << "}\n\n";
> -}
> -
> -void CWriter::printLoop(Loop *L) {
> - Out << " do { /* Syntactic loop '" << L->getHeader()->getName()
> - << "' to make GCC happy */\n";
> - for (unsigned i = 0, e = L->getBlocks().size(); i != e; ++i) {
> - BasicBlock *BB = L->getBlocks()[i];
> - Loop *BBLoop = LI->getLoopFor(BB);
> - if (BBLoop == L)
> - printBasicBlock(BB);
> - else if (BB == BBLoop->getHeader() && BBLoop->getParentLoop() == L)
> - printLoop(BBLoop);
> - }
> - Out << " } while (1); /* end of syntactic loop '"
> - << L->getHeader()->getName() << "' */\n";
> -}
> -
> -void CWriter::printBasicBlock(BasicBlock *BB) {
> -
> - // Don't print the label for the basic block if there are no uses, or if
> - // the only terminator use is the predecessor basic block's terminator.
> - // We have to scan the use list because PHI nodes use basic blocks too but
> - // do not require a label to be generated.
> - //
> - bool NeedsLabel = false;
> - for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI)
> - if (isGotoCodeNecessary(*PI, BB)) {
> - NeedsLabel = true;
> - break;
> - }
> -
> - if (NeedsLabel) Out << GetValueName(BB) << ":\n";
> -
> - // Output all of the instructions in the basic block...
> - for (BasicBlock::iterator II = BB->begin(), E = --BB->end(); II != E;
> - ++II) {
> - if (!isInlinableInst(*II) && !isDirectAlloca(II)) {
> - if (II->getType() != Type::getVoidTy(BB->getContext()) &&
> - !isInlineAsm(*II))
> - outputLValue(II);
> - else
> - Out << " ";
> - writeInstComputationInline(*II);
> - Out << ";\n";
> - }
> - }
> -
> - // Don't emit prefix or suffix for the terminator.
> - visit(*BB->getTerminator());
> -}
> -
> -
> -// Specific Instruction type classes... note that all of the casts are
> -// necessary because we use the instruction classes as opaque types...
> -//
> -void CWriter::visitReturnInst(ReturnInst &I) {
> - // If this is a struct return function, return the temporary struct.
> - bool isStructReturn = I.getParent()->getParent()->hasStructRetAttr();
> -
> - if (isStructReturn) {
> - Out << " return StructReturn;\n";
> - return;
> - }
> -
> - // Don't output a void return if this is the last basic block in the function
> - if (I.getNumOperands() == 0 &&
> - &*--I.getParent()->getParent()->end() == I.getParent() &&
> - !I.getParent()->size() == 1) {
> - return;
> - }
> -
> - Out << " return";
> - if (I.getNumOperands()) {
> - Out << ' ';
> - writeOperand(I.getOperand(0));
> - }
> - Out << ";\n";
> -}
> -
> -void CWriter::visitSwitchInst(SwitchInst &SI) {
> -
> - Value* Cond = SI.getCondition();
> -
> - Out << " switch (";
> - writeOperand(Cond);
> - Out << ") {\n default:\n";
> - printPHICopiesForSuccessor (SI.getParent(), SI.getDefaultDest(), 2);
> - printBranchToBlock(SI.getParent(), SI.getDefaultDest(), 2);
> - Out << ";\n";
> -
> - // Skip the first item since that's the default case.
> - for (SwitchInst::CaseIt i = SI.case_begin(), e = SI.case_end(); i != e; ++i) {
> - ConstantInt* CaseVal = i.getCaseValue();
> - BasicBlock* Succ = i.getCaseSuccessor();
> - Out << " case ";
> - writeOperand(CaseVal);
> - Out << ":\n";
> - printPHICopiesForSuccessor (SI.getParent(), Succ, 2);
> - printBranchToBlock(SI.getParent(), Succ, 2);
> - if (Function::iterator(Succ) ==
> - llvm::next(Function::iterator(SI.getParent())))
> - Out << " break;\n";
> - }
> -
> - Out << " }\n";
> -}
> -
> -void CWriter::visitIndirectBrInst(IndirectBrInst &IBI) {
> - Out << " goto *(void*)(";
> - writeOperand(IBI.getOperand(0));
> - Out << ");\n";
> -}
> -
> -void CWriter::visitUnreachableInst(UnreachableInst &I) {
> - Out << " /*UNREACHABLE*/;\n";
> -}
> -
> -bool CWriter::isGotoCodeNecessary(BasicBlock *From, BasicBlock *To) {
> - /// FIXME: This should be reenabled, but loop reordering safe!!
> - return true;
> -
> - if (llvm::next(Function::iterator(From)) != Function::iterator(To))
> - return true; // Not the direct successor, we need a goto.
> -
> - //isa<SwitchInst>(From->getTerminator())
> -
> - if (LI->getLoopFor(From) != LI->getLoopFor(To))
> - return true;
> - return false;
> -}
> -
> -void CWriter::printPHICopiesForSuccessor (BasicBlock *CurBlock,
> - BasicBlock *Successor,
> - unsigned Indent) {
> - for (BasicBlock::iterator I = Successor->begin(); isa<PHINode>(I); ++I) {
> - PHINode *PN = cast<PHINode>(I);
> - // Now we have to do the printing.
> - Value *IV = PN->getIncomingValueForBlock(CurBlock);
> - if (!isa<UndefValue>(IV)) {
> - Out << std::string(Indent, ' ');
> - Out << " " << GetValueName(I) << "__PHI_TEMPORARY = ";
> - writeOperand(IV);
> - Out << "; /* for PHI node */\n";
> - }
> - }
> -}
> -
> -void CWriter::printBranchToBlock(BasicBlock *CurBB, BasicBlock *Succ,
> - unsigned Indent) {
> - if (isGotoCodeNecessary(CurBB, Succ)) {
> - Out << std::string(Indent, ' ') << " goto ";
> - writeOperand(Succ);
> - Out << ";\n";
> - }
> -}
> -
> -// Branch instruction printing - Avoid printing out a branch to a basic block
> -// that immediately succeeds the current one.
> -//
> -void CWriter::visitBranchInst(BranchInst &I) {
> -
> - if (I.isConditional()) {
> - if (isGotoCodeNecessary(I.getParent(), I.getSuccessor(0))) {
> - Out << " if (";
> - writeOperand(I.getCondition());
> - Out << ") {\n";
> -
> - printPHICopiesForSuccessor (I.getParent(), I.getSuccessor(0), 2);
> - printBranchToBlock(I.getParent(), I.getSuccessor(0), 2);
> -
> - if (isGotoCodeNecessary(I.getParent(), I.getSuccessor(1))) {
> - Out << " } else {\n";
> - printPHICopiesForSuccessor (I.getParent(), I.getSuccessor(1), 2);
> - printBranchToBlock(I.getParent(), I.getSuccessor(1), 2);
> - }
> - } else {
> - // First goto not necessary, assume second one is...
> - Out << " if (!";
> - writeOperand(I.getCondition());
> - Out << ") {\n";
> -
> - printPHICopiesForSuccessor (I.getParent(), I.getSuccessor(1), 2);
> - printBranchToBlock(I.getParent(), I.getSuccessor(1), 2);
> - }
> -
> - Out << " }\n";
> - } else {
> - printPHICopiesForSuccessor (I.getParent(), I.getSuccessor(0), 0);
> - printBranchToBlock(I.getParent(), I.getSuccessor(0), 0);
> - }
> - Out << "\n";
> -}
> -
> -// PHI nodes get copied into temporary values at the end of predecessor basic
> -// blocks. We now need to copy these temporary values into the REAL value for
> -// the PHI.
> -void CWriter::visitPHINode(PHINode &I) {
> - writeOperand(&I);
> - Out << "__PHI_TEMPORARY";
> -}
> -
> -
> -void CWriter::visitBinaryOperator(Instruction &I) {
> - // binary instructions, shift instructions, setCond instructions.
> - assert(!I.getType()->isPointerTy());
> -
> - // We must cast the results of binary operations which might be promoted.
> - bool needsCast = false;
> - if ((I.getType() == Type::getInt8Ty(I.getContext())) ||
> - (I.getType() == Type::getInt16Ty(I.getContext()))
> - || (I.getType() == Type::getFloatTy(I.getContext()))) {
> - needsCast = true;
> - Out << "((";
> - printType(Out, I.getType(), false);
> - Out << ")(";
> - }
> -
> - // If this is a negation operation, print it out as such. For FP, we don't
> - // want to print "-0.0 - X".
> - if (BinaryOperator::isNeg(&I)) {
> - Out << "-(";
> - writeOperand(BinaryOperator::getNegArgument(cast<BinaryOperator>(&I)));
> - Out << ")";
> - } else if (BinaryOperator::isFNeg(&I)) {
> - Out << "-(";
> - writeOperand(BinaryOperator::getFNegArgument(cast<BinaryOperator>(&I)));
> - Out << ")";
> - } else if (I.getOpcode() == Instruction::FRem) {
> - // Output a call to fmod/fmodf instead of emitting a%b
> - if (I.getType() == Type::getFloatTy(I.getContext()))
> - Out << "fmodf(";
> - else if (I.getType() == Type::getDoubleTy(I.getContext()))
> - Out << "fmod(";
> - else // all 3 flavors of long double
> - Out << "fmodl(";
> - writeOperand(I.getOperand(0));
> - Out << ", ";
> - writeOperand(I.getOperand(1));
> - Out << ")";
> - } else {
> -
> - // Write out the cast of the instruction's value back to the proper type
> - // if necessary.
> - bool NeedsClosingParens = writeInstructionCast(I);
> -
> - // Certain instructions require the operand to be forced to a specific type
> - // so we use writeOperandWithCast here instead of writeOperand. Similarly
> - // below for operand 1
> - writeOperandWithCast(I.getOperand(0), I.getOpcode());
> -
> - switch (I.getOpcode()) {
> - case Instruction::Add:
> - case Instruction::FAdd: Out << " + "; break;
> - case Instruction::Sub:
> - case Instruction::FSub: Out << " - "; break;
> - case Instruction::Mul:
> - case Instruction::FMul: Out << " * "; break;
> - case Instruction::URem:
> - case Instruction::SRem:
> - case Instruction::FRem: Out << " % "; break;
> - case Instruction::UDiv:
> - case Instruction::SDiv:
> - case Instruction::FDiv: Out << " / "; break;
> - case Instruction::And: Out << " & "; break;
> - case Instruction::Or: Out << " | "; break;
> - case Instruction::Xor: Out << " ^ "; break;
> - case Instruction::Shl : Out << " << "; break;
> - case Instruction::LShr:
> - case Instruction::AShr: Out << " >> "; break;
> - default:
> -#ifndef NDEBUG
> - errs() << "Invalid operator type!" << I;
> -#endif
> - llvm_unreachable(0);
> - }
> -
> - writeOperandWithCast(I.getOperand(1), I.getOpcode());
> - if (NeedsClosingParens)
> - Out << "))";
> - }
> -
> - if (needsCast) {
> - Out << "))";
> - }
> -}
> -
> -void CWriter::visitICmpInst(ICmpInst &I) {
> - // We must cast the results of icmp which might be promoted.
> - bool needsCast = false;
> -
> - // Write out the cast of the instruction's value back to the proper type
> - // if necessary.
> - bool NeedsClosingParens = writeInstructionCast(I);
> -
> - // Certain icmp predicate require the operand to be forced to a specific type
> - // so we use writeOperandWithCast here instead of writeOperand. Similarly
> - // below for operand 1
> - writeOperandWithCast(I.getOperand(0), I);
> -
> - switch (I.getPredicate()) {
> - case ICmpInst::ICMP_EQ: Out << " == "; break;
> - case ICmpInst::ICMP_NE: Out << " != "; break;
> - case ICmpInst::ICMP_ULE:
> - case ICmpInst::ICMP_SLE: Out << " <= "; break;
> - case ICmpInst::ICMP_UGE:
> - case ICmpInst::ICMP_SGE: Out << " >= "; break;
> - case ICmpInst::ICMP_ULT:
> - case ICmpInst::ICMP_SLT: Out << " < "; break;
> - case ICmpInst::ICMP_UGT:
> - case ICmpInst::ICMP_SGT: Out << " > "; break;
> - default:
> -#ifndef NDEBUG
> - errs() << "Invalid icmp predicate!" << I;
> -#endif
> - llvm_unreachable(0);
> - }
> -
> - writeOperandWithCast(I.getOperand(1), I);
> - if (NeedsClosingParens)
> - Out << "))";
> -
> - if (needsCast) {
> - Out << "))";
> - }
> -}
> -
> -void CWriter::visitFCmpInst(FCmpInst &I) {
> - if (I.getPredicate() == FCmpInst::FCMP_FALSE) {
> - Out << "0";
> - return;
> - }
> - if (I.getPredicate() == FCmpInst::FCMP_TRUE) {
> - Out << "1";
> - return;
> - }
> -
> - const char* op = 0;
> - switch (I.getPredicate()) {
> - default: llvm_unreachable("Illegal FCmp predicate");
> - case FCmpInst::FCMP_ORD: op = "ord"; break;
> - case FCmpInst::FCMP_UNO: op = "uno"; break;
> - case FCmpInst::FCMP_UEQ: op = "ueq"; break;
> - case FCmpInst::FCMP_UNE: op = "une"; break;
> - case FCmpInst::FCMP_ULT: op = "ult"; break;
> - case FCmpInst::FCMP_ULE: op = "ule"; break;
> - case FCmpInst::FCMP_UGT: op = "ugt"; break;
> - case FCmpInst::FCMP_UGE: op = "uge"; break;
> - case FCmpInst::FCMP_OEQ: op = "oeq"; break;
> - case FCmpInst::FCMP_ONE: op = "one"; break;
> - case FCmpInst::FCMP_OLT: op = "olt"; break;
> - case FCmpInst::FCMP_OLE: op = "ole"; break;
> - case FCmpInst::FCMP_OGT: op = "ogt"; break;
> - case FCmpInst::FCMP_OGE: op = "oge"; break;
> - }
> -
> - Out << "llvm_fcmp_" << op << "(";
> - // Write the first operand
> - writeOperand(I.getOperand(0));
> - Out << ", ";
> - // Write the second operand
> - writeOperand(I.getOperand(1));
> - Out << ")";
> -}
> -
> -static const char * getFloatBitCastField(Type *Ty) {
> - switch (Ty->getTypeID()) {
> - default: llvm_unreachable("Invalid Type");
> - case Type::FloatTyID: return "Float";
> - case Type::DoubleTyID: return "Double";
> - case Type::IntegerTyID: {
> - unsigned NumBits = cast<IntegerType>(Ty)->getBitWidth();
> - if (NumBits <= 32)
> - return "Int32";
> - else
> - return "Int64";
> - }
> - }
> -}
> -
> -void CWriter::visitCastInst(CastInst &I) {
> - Type *DstTy = I.getType();
> - Type *SrcTy = I.getOperand(0)->getType();
> - if (isFPIntBitCast(I)) {
> - Out << '(';
> - // These int<->float and long<->double casts need to be handled specially
> - Out << GetValueName(&I) << "__BITCAST_TEMPORARY."
> - << getFloatBitCastField(I.getOperand(0)->getType()) << " = ";
> - writeOperand(I.getOperand(0));
> - Out << ", " << GetValueName(&I) << "__BITCAST_TEMPORARY."
> - << getFloatBitCastField(I.getType());
> - Out << ')';
> - return;
> - }
> -
> - Out << '(';
> - printCast(I.getOpcode(), SrcTy, DstTy);
> -
> - // Make a sext from i1 work by subtracting the i1 from 0 (an int).
> - if (SrcTy == Type::getInt1Ty(I.getContext()) &&
> - I.getOpcode() == Instruction::SExt)
> - Out << "0-";
> -
> - writeOperand(I.getOperand(0));
> -
> - if (DstTy == Type::getInt1Ty(I.getContext()) &&
> - (I.getOpcode() == Instruction::Trunc ||
> - I.getOpcode() == Instruction::FPToUI ||
> - I.getOpcode() == Instruction::FPToSI ||
> - I.getOpcode() == Instruction::PtrToInt)) {
> - // Make sure we really get a trunc to bool by anding the operand with 1
> - Out << "&1u";
> - }
> - Out << ')';
> -}
> -
> -void CWriter::visitSelectInst(SelectInst &I) {
> - Out << "((";
> - writeOperand(I.getCondition());
> - Out << ") ? (";
> - writeOperand(I.getTrueValue());
> - Out << ") : (";
> - writeOperand(I.getFalseValue());
> - Out << "))";
> -}
> -
> -// Returns the macro name or value of the max or min of an integer type
> -// (as defined in limits.h).
> -static void printLimitValue(IntegerType &Ty, bool isSigned, bool isMax,
> - raw_ostream &Out) {
> - const char* type;
> - const char* sprefix = "";
> -
> - unsigned NumBits = Ty.getBitWidth();
> - if (NumBits <= 8) {
> - type = "CHAR";
> - sprefix = "S";
> - } else if (NumBits <= 16) {
> - type = "SHRT";
> - } else if (NumBits <= 32) {
> - type = "INT";
> - } else if (NumBits <= 64) {
> - type = "LLONG";
> - } else {
> - llvm_unreachable("Bit widths > 64 not implemented yet");
> - }
> -
> - if (isSigned)
> - Out << sprefix << type << (isMax ? "_MAX" : "_MIN");
> - else
> - Out << "U" << type << (isMax ? "_MAX" : "0");
> -}
> -
> -#ifndef NDEBUG
> -static bool isSupportedIntegerSize(IntegerType &T) {
> - return T.getBitWidth() == 8 || T.getBitWidth() == 16 ||
> - T.getBitWidth() == 32 || T.getBitWidth() == 64;
> -}
> -#endif
> -
> -void CWriter::printIntrinsicDefinition(const Function &F, raw_ostream &Out) {
> - FunctionType *funT = F.getFunctionType();
> - Type *retT = F.getReturnType();
> - IntegerType *elemT = cast<IntegerType>(funT->getParamType(1));
> -
> - assert(isSupportedIntegerSize(*elemT) &&
> - "CBackend does not support arbitrary size integers.");
> - assert(cast<StructType>(retT)->getElementType(0) == elemT &&
> - elemT == funT->getParamType(0) && funT->getNumParams() == 2);
> -
> - switch (F.getIntrinsicID()) {
> - default:
> - llvm_unreachable("Unsupported Intrinsic.");
> - case Intrinsic::uadd_with_overflow:
> - // static inline Rty uadd_ixx(unsigned ixx a, unsigned ixx b) {
> - // Rty r;
> - // r.field0 = a + b;
> - // r.field1 = (r.field0 < a);
> - // return r;
> - // }
> - Out << "static inline ";
> - printType(Out, retT);
> - Out << GetValueName(&F);
> - Out << "(";
> - printSimpleType(Out, elemT, false);
> - Out << "a,";
> - printSimpleType(Out, elemT, false);
> - Out << "b) {\n ";
> - printType(Out, retT);
> - Out << "r;\n";
> - Out << " r.field0 = a + b;\n";
> - Out << " r.field1 = (r.field0 < a);\n";
> - Out << " return r;\n}\n";
> - break;
> -
> - case Intrinsic::sadd_with_overflow:
> - // static inline Rty sadd_ixx(ixx a, ixx b) {
> - // Rty r;
> - // r.field1 = (b > 0 && a > XX_MAX - b) ||
> - // (b < 0 && a < XX_MIN - b);
> - // r.field0 = r.field1 ? 0 : a + b;
> - // return r;
> - // }
> - Out << "static ";
> - printType(Out, retT);
> - Out << GetValueName(&F);
> - Out << "(";
> - printSimpleType(Out, elemT, true);
> - Out << "a,";
> - printSimpleType(Out, elemT, true);
> - Out << "b) {\n ";
> - printType(Out, retT);
> - Out << "r;\n";
> - Out << " r.field1 = (b > 0 && a > ";
> - printLimitValue(*elemT, true, true, Out);
> - Out << " - b) || (b < 0 && a < ";
> - printLimitValue(*elemT, true, false, Out);
> - Out << " - b);\n";
> - Out << " r.field0 = r.field1 ? 0 : a + b;\n";
> - Out << " return r;\n}\n";
> - break;
> - }
> -}
> -
> -void CWriter::lowerIntrinsics(Function &F) {
> - // This is used to keep track of intrinsics that get generated to a lowered
> - // function. We must generate the prototypes before the function body which
> - // will only be expanded on first use (by the loop below).
> - std::vector<Function*> prototypesToGen;
> -
> - // Examine all the instructions in this function to find the intrinsics that
> - // need to be lowered.
> - for (Function::iterator BB = F.begin(), EE = F.end(); BB != EE; ++BB)
> - for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; )
> - if (CallInst *CI = dyn_cast<CallInst>(I++))
> - if (Function *F = CI->getCalledFunction())
> - switch (F->getIntrinsicID()) {
> - case Intrinsic::not_intrinsic:
> - case Intrinsic::vastart:
> - case Intrinsic::vacopy:
> - case Intrinsic::vaend:
> - case Intrinsic::returnaddress:
> - case Intrinsic::frameaddress:
> - case Intrinsic::setjmp:
> - case Intrinsic::longjmp:
> - case Intrinsic::prefetch:
> - case Intrinsic::powi:
> - case Intrinsic::x86_sse_cmp_ss:
> - case Intrinsic::x86_sse_cmp_ps:
> - case Intrinsic::x86_sse2_cmp_sd:
> - case Intrinsic::x86_sse2_cmp_pd:
> - case Intrinsic::ppc_altivec_lvsl:
> - case Intrinsic::uadd_with_overflow:
> - case Intrinsic::sadd_with_overflow:
> - // We directly implement these intrinsics
> - break;
> - default:
> - // If this is an intrinsic that directly corresponds to a GCC
> - // builtin, we handle it.
> - const char *BuiltinName = "";
> -#define GET_GCC_BUILTIN_NAME
> -#include "llvm/Intrinsics.gen"
> -#undef GET_GCC_BUILTIN_NAME
> - // If we handle it, don't lower it.
> - if (BuiltinName[0]) break;
> -
> - // All other intrinsic calls we must lower.
> - Instruction *Before = 0;
> - if (CI != &BB->front())
> - Before = prior(BasicBlock::iterator(CI));
> -
> - IL->LowerIntrinsicCall(CI);
> - if (Before) { // Move iterator to instruction after call
> - I = Before; ++I;
> - } else {
> - I = BB->begin();
> - }
> - // If the intrinsic got lowered to another call, and that call has
> - // a definition then we need to make sure its prototype is emitted
> - // before any calls to it.
> - if (CallInst *Call = dyn_cast<CallInst>(I))
> - if (Function *NewF = Call->getCalledFunction())
> - if (!NewF->isDeclaration())
> - prototypesToGen.push_back(NewF);
> -
> - break;
> - }
> -
> - // We may have collected some prototypes to emit in the loop above.
> - // Emit them now, before the function that uses them is emitted. But,
> - // be careful not to emit them twice.
> - std::vector<Function*>::iterator I = prototypesToGen.begin();
> - std::vector<Function*>::iterator E = prototypesToGen.end();
> - for ( ; I != E; ++I) {
> - if (intrinsicPrototypesAlreadyGenerated.insert(*I).second) {
> - Out << '\n';
> - printFunctionSignature(*I, true);
> - Out << ";\n";
> - }
> - }
> -}
> -
> -void CWriter::visitCallInst(CallInst &I) {
> - if (isa<InlineAsm>(I.getCalledValue()))
> - return visitInlineAsm(I);
> -
> - bool WroteCallee = false;
> -
> - // Handle intrinsic function calls first...
> - if (Function *F = I.getCalledFunction())
> - if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
> - if (visitBuiltinCall(I, ID, WroteCallee))
> - return;
> -
> - Value *Callee = I.getCalledValue();
> -
> - PointerType *PTy = cast<PointerType>(Callee->getType());
> - FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
> -
> - // If this is a call to a struct-return function, assign to the first
> - // parameter instead of passing it to the call.
> - const AttrListPtr &PAL = I.getAttributes();
> - bool hasByVal = I.hasByValArgument();
> - bool isStructRet = I.hasStructRetAttr();
> - if (isStructRet) {
> - writeOperandDeref(I.getArgOperand(0));
> - Out << " = ";
> - }
> -
> - if (I.isTailCall()) Out << " /*tail*/ ";
> -
> - if (!WroteCallee) {
> - // If this is an indirect call to a struct return function, we need to cast
> - // the pointer. Ditto for indirect calls with byval arguments.
> - bool NeedsCast = (hasByVal || isStructRet) && !isa<Function>(Callee);
> -
> - // GCC is a real PITA. It does not permit codegening casts of functions to
> - // function pointers if they are in a call (it generates a trap instruction
> - // instead!). We work around this by inserting a cast to void* in between
> - // the function and the function pointer cast. Unfortunately, we can't just
> - // form the constant expression here, because the folder will immediately
> - // nuke it.
> - //
> - // Note finally, that this is completely unsafe. ANSI C does not guarantee
> - // that void* and function pointers have the same size. :( To deal with this
> - // in the common case, we handle casts where the number of arguments passed
> - // match exactly.
> - //
> - if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Callee))
> - if (CE->isCast())
> - if (Function *RF = dyn_cast<Function>(CE->getOperand(0))) {
> - NeedsCast = true;
> - Callee = RF;
> - }
> -
> - if (NeedsCast) {
> - // Ok, just cast the pointer type.
> - Out << "((";
> - if (isStructRet)
> - printStructReturnPointerFunctionType(Out, PAL,
> - cast<PointerType>(I.getCalledValue()->getType()));
> - else if (hasByVal)
> - printType(Out, I.getCalledValue()->getType(), false, "", true, PAL);
> - else
> - printType(Out, I.getCalledValue()->getType());
> - Out << ")(void*)";
> - }
> - writeOperand(Callee);
> - if (NeedsCast) Out << ')';
> - }
> -
> - Out << '(';
> -
> - bool PrintedArg = false;
> - if(FTy->isVarArg() && !FTy->getNumParams()) {
> - Out << "0 /*dummy arg*/";
> - PrintedArg = true;
> - }
> -
> - unsigned NumDeclaredParams = FTy->getNumParams();
> - CallSite CS(&I);
> - CallSite::arg_iterator AI = CS.arg_begin(), AE = CS.arg_end();
> - unsigned ArgNo = 0;
> - if (isStructRet) { // Skip struct return argument.
> - ++AI;
> - ++ArgNo;
> - }
> -
> -
> - for (; AI != AE; ++AI, ++ArgNo) {
> - if (PrintedArg) Out << ", ";
> - if (ArgNo < NumDeclaredParams &&
> - (*AI)->getType() != FTy->getParamType(ArgNo)) {
> - Out << '(';
> - printType(Out, FTy->getParamType(ArgNo),
> - /*isSigned=*/PAL.paramHasAttr(ArgNo+1, Attribute::SExt));
> - Out << ')';
> - }
> - // Check if the argument is expected to be passed by value.
> - if (I.paramHasAttr(ArgNo+1, Attribute::ByVal))
> - writeOperandDeref(*AI);
> - else
> - writeOperand(*AI);
> - PrintedArg = true;
> - }
> - Out << ')';
> -}
> -
> -/// visitBuiltinCall - Handle the call to the specified builtin. Returns true
> -/// if the entire call is handled, return false if it wasn't handled, and
> -/// optionally set 'WroteCallee' if the callee has already been printed out.
> -bool CWriter::visitBuiltinCall(CallInst &I, Intrinsic::ID ID,
> - bool &WroteCallee) {
> - switch (ID) {
> - default: {
> - // If this is an intrinsic that directly corresponds to a GCC
> - // builtin, we emit it here.
> - const char *BuiltinName = "";
> - Function *F = I.getCalledFunction();
> -#define GET_GCC_BUILTIN_NAME
> -#include "llvm/Intrinsics.gen"
> -#undef GET_GCC_BUILTIN_NAME
> - assert(BuiltinName[0] && "Unknown LLVM intrinsic!");
> -
> - Out << BuiltinName;
> - WroteCallee = true;
> - return false;
> - }
> - case Intrinsic::vastart:
> - Out << "0; ";
> -
> - Out << "va_start(*(va_list*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - // Output the last argument to the enclosing function.
> - if (I.getParent()->getParent()->arg_empty())
> - Out << "vararg_dummy_arg";
> - else
> - writeOperand(--I.getParent()->getParent()->arg_end());
> - Out << ')';
> - return true;
> - case Intrinsic::vaend:
> - if (!isa<ConstantPointerNull>(I.getArgOperand(0))) {
> - Out << "0; va_end(*(va_list*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ')';
> - } else {
> - Out << "va_end(*(va_list*)0)";
> - }
> - return true;
> - case Intrinsic::vacopy:
> - Out << "0; ";
> - Out << "va_copy(*(va_list*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ", *(va_list*)";
> - writeOperand(I.getArgOperand(1));
> - Out << ')';
> - return true;
> - case Intrinsic::returnaddress:
> - Out << "__builtin_return_address(";
> - writeOperand(I.getArgOperand(0));
> - Out << ')';
> - return true;
> - case Intrinsic::frameaddress:
> - Out << "__builtin_frame_address(";
> - writeOperand(I.getArgOperand(0));
> - Out << ')';
> - return true;
> - case Intrinsic::powi:
> - Out << "__builtin_powi(";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - writeOperand(I.getArgOperand(1));
> - Out << ')';
> - return true;
> - case Intrinsic::setjmp:
> - Out << "setjmp(*(jmp_buf*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ')';
> - return true;
> - case Intrinsic::longjmp:
> - Out << "longjmp(*(jmp_buf*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - writeOperand(I.getArgOperand(1));
> - Out << ')';
> - return true;
> - case Intrinsic::prefetch:
> - Out << "LLVM_PREFETCH((const void *)";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - writeOperand(I.getArgOperand(1));
> - Out << ", ";
> - writeOperand(I.getArgOperand(2));
> - Out << ")";
> - return true;
> - case Intrinsic::stacksave:
> - // Emit this as: Val = 0; *((void**)&Val) = __builtin_stack_save()
> - // to work around GCC bugs (see PR1809).
> - Out << "0; *((void**)&" << GetValueName(&I)
> - << ") = __builtin_stack_save()";
> - return true;
> - case Intrinsic::x86_sse_cmp_ss:
> - case Intrinsic::x86_sse_cmp_ps:
> - case Intrinsic::x86_sse2_cmp_sd:
> - case Intrinsic::x86_sse2_cmp_pd:
> - Out << '(';
> - printType(Out, I.getType());
> - Out << ')';
> - // Multiple GCC builtins multiplex onto this intrinsic.
> - switch (cast<ConstantInt>(I.getArgOperand(2))->getZExtValue()) {
> - default: llvm_unreachable("Invalid llvm.x86.sse.cmp!");
> - case 0: Out << "__builtin_ia32_cmpeq"; break;
> - case 1: Out << "__builtin_ia32_cmplt"; break;
> - case 2: Out << "__builtin_ia32_cmple"; break;
> - case 3: Out << "__builtin_ia32_cmpunord"; break;
> - case 4: Out << "__builtin_ia32_cmpneq"; break;
> - case 5: Out << "__builtin_ia32_cmpnlt"; break;
> - case 6: Out << "__builtin_ia32_cmpnle"; break;
> - case 7: Out << "__builtin_ia32_cmpord"; break;
> - }
> - if (ID == Intrinsic::x86_sse_cmp_ps || ID == Intrinsic::x86_sse2_cmp_pd)
> - Out << 'p';
> - else
> - Out << 's';
> - if (ID == Intrinsic::x86_sse_cmp_ss || ID == Intrinsic::x86_sse_cmp_ps)
> - Out << 's';
> - else
> - Out << 'd';
> -
> - Out << "(";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - writeOperand(I.getArgOperand(1));
> - Out << ")";
> - return true;
> - case Intrinsic::ppc_altivec_lvsl:
> - Out << '(';
> - printType(Out, I.getType());
> - Out << ')';
> - Out << "__builtin_altivec_lvsl(0, (void*)";
> - writeOperand(I.getArgOperand(0));
> - Out << ")";
> - return true;
> - case Intrinsic::uadd_with_overflow:
> - case Intrinsic::sadd_with_overflow:
> - Out << GetValueName(I.getCalledFunction()) << "(";
> - writeOperand(I.getArgOperand(0));
> - Out << ", ";
> - writeOperand(I.getArgOperand(1));
> - Out << ")";
> - return true;
> - }
> -}
> -
> -//This converts the llvm constraint string to something gcc is expecting.
> -//TODO: work out platform independent constraints and factor those out
> -// of the per target tables
> -// handle multiple constraint codes
> -std::string CWriter::InterpretASMConstraint(InlineAsm::ConstraintInfo& c) {
> - assert(c.Codes.size() == 1 && "Too many asm constraint codes to handle");
> -
> - // Grab the translation table from MCAsmInfo if it exists.
> - const MCAsmInfo *TargetAsm;
> - std::string Triple = TheModule->getTargetTriple();
> - if (Triple.empty())
> - Triple = llvm::sys::getDefaultTargetTriple();
> -
> - std::string E;
> - if (const Target *Match = TargetRegistry::lookupTarget(Triple, E))
> - TargetAsm = Match->createMCAsmInfo(Triple);
> - else
> - return c.Codes[0];
> -
> - const char *const *table = TargetAsm->getAsmCBE();
> -
> - // Search the translation table if it exists.
> - for (int i = 0; table && table[i]; i += 2)
> - if (c.Codes[0] == table[i]) {
> - delete TargetAsm;
> - return table[i+1];
> - }
> -
> - // Default is identity.
> - delete TargetAsm;
> - return c.Codes[0];
> -}
> -
> -//TODO: import logic from AsmPrinter.cpp
> -static std::string gccifyAsm(std::string asmstr) {
> - for (std::string::size_type i = 0; i != asmstr.size(); ++i)
> - if (asmstr[i] == '\n')
> - asmstr.replace(i, 1, "\\n");
> - else if (asmstr[i] == '\t')
> - asmstr.replace(i, 1, "\\t");
> - else if (asmstr[i] == '$') {
> - if (asmstr[i + 1] == '{') {
> - std::string::size_type a = asmstr.find_first_of(':', i + 1);
> - std::string::size_type b = asmstr.find_first_of('}', i + 1);
> - std::string n = "%" +
> - asmstr.substr(a + 1, b - a - 1) +
> - asmstr.substr(i + 2, a - i - 2);
> - asmstr.replace(i, b - i + 1, n);
> - i += n.size() - 1;
> - } else
> - asmstr.replace(i, 1, "%");
> - }
> - else if (asmstr[i] == '%')//grr
> - { asmstr.replace(i, 1, "%%"); ++i;}
> -
> - return asmstr;
> -}
> -
> -//TODO: assumptions about what consume arguments from the call are likely wrong
> -// handle communitivity
> -void CWriter::visitInlineAsm(CallInst &CI) {
> - InlineAsm* as = cast<InlineAsm>(CI.getCalledValue());
> - InlineAsm::ConstraintInfoVector Constraints = as->ParseConstraints();
> -
> - std::vector<std::pair<Value*, int> > ResultVals;
> - if (CI.getType() == Type::getVoidTy(CI.getContext()))
> - ;
> - else if (StructType *ST = dyn_cast<StructType>(CI.getType())) {
> - for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i)
> - ResultVals.push_back(std::make_pair(&CI, (int)i));
> - } else {
> - ResultVals.push_back(std::make_pair(&CI, -1));
> - }
> -
> - // Fix up the asm string for gcc and emit it.
> - Out << "__asm__ volatile (\"" << gccifyAsm(as->getAsmString()) << "\"\n";
> - Out << " :";
> -
> - unsigned ValueCount = 0;
> - bool IsFirst = true;
> -
> - // Convert over all the output constraints.
> - for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
> - E = Constraints.end(); I != E; ++I) {
> -
> - if (I->Type != InlineAsm::isOutput) {
> - ++ValueCount;
> - continue; // Ignore non-output constraints.
> - }
> -
> - assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
> - std::string C = InterpretASMConstraint(*I);
> - if (C.empty()) continue;
> -
> - if (!IsFirst) {
> - Out << ", ";
> - IsFirst = false;
> - }
> -
> - // Unpack the dest.
> - Value *DestVal;
> - int DestValNo = -1;
> -
> - if (ValueCount < ResultVals.size()) {
> - DestVal = ResultVals[ValueCount].first;
> - DestValNo = ResultVals[ValueCount].second;
> - } else
> - DestVal = CI.getArgOperand(ValueCount-ResultVals.size());
> -
> - if (I->isEarlyClobber)
> - C = "&"+C;
> -
> - Out << "\"=" << C << "\"(" << GetValueName(DestVal);
> - if (DestValNo != -1)
> - Out << ".field" << DestValNo; // Multiple retvals.
> - Out << ")";
> - ++ValueCount;
> - }
> -
> -
> - // Convert over all the input constraints.
> - Out << "\n :";
> - IsFirst = true;
> - ValueCount = 0;
> - for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
> - E = Constraints.end(); I != E; ++I) {
> - if (I->Type != InlineAsm::isInput) {
> - ++ValueCount;
> - continue; // Ignore non-input constraints.
> - }
> -
> - assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
> - std::string C = InterpretASMConstraint(*I);
> - if (C.empty()) continue;
> -
> - if (!IsFirst) {
> - Out << ", ";
> - IsFirst = false;
> - }
> -
> - assert(ValueCount >= ResultVals.size() && "Input can't refer to result");
> - Value *SrcVal = CI.getArgOperand(ValueCount-ResultVals.size());
> -
> - Out << "\"" << C << "\"(";
> - if (!I->isIndirect)
> - writeOperand(SrcVal);
> - else
> - writeOperandDeref(SrcVal);
> - Out << ")";
> - }
> -
> - // Convert over the clobber constraints.
> - IsFirst = true;
> - for (InlineAsm::ConstraintInfoVector::iterator I = Constraints.begin(),
> - E = Constraints.end(); I != E; ++I) {
> - if (I->Type != InlineAsm::isClobber)
> - continue; // Ignore non-input constraints.
> -
> - assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
> - std::string C = InterpretASMConstraint(*I);
> - if (C.empty()) continue;
> -
> - if (!IsFirst) {
> - Out << ", ";
> - IsFirst = false;
> - }
> -
> - Out << '\"' << C << '"';
> - }
> -
> - Out << ")";
> -}
> -
> -void CWriter::visitAllocaInst(AllocaInst &I) {
> - Out << '(';
> - printType(Out, I.getType());
> - Out << ") alloca(sizeof(";
> - printType(Out, I.getType()->getElementType());
> - Out << ')';
> - if (I.isArrayAllocation()) {
> - Out << " * " ;
> - writeOperand(I.getOperand(0));
> - }
> - Out << ')';
> -}
> -
> -void CWriter::printGEPExpression(Value *Ptr, gep_type_iterator I,
> - gep_type_iterator E, bool Static) {
> -
> - // If there are no indices, just print out the pointer.
> - if (I == E) {
> - writeOperand(Ptr);
> - return;
> - }
> -
> - // Find out if the last index is into a vector. If so, we have to print this
> - // specially. Since vectors can't have elements of indexable type, only the
> - // last index could possibly be of a vector element.
> - VectorType *LastIndexIsVector = 0;
> - {
> - for (gep_type_iterator TmpI = I; TmpI != E; ++TmpI)
> - LastIndexIsVector = dyn_cast<VectorType>(*TmpI);
> - }
> -
> - Out << "(";
> -
> - // If the last index is into a vector, we can't print it as &a[i][j] because
> - // we can't index into a vector with j in GCC. Instead, emit this as
> - // (((float*)&a[i])+j)
> - if (LastIndexIsVector) {
> - Out << "((";
> - printType(Out, PointerType::getUnqual(LastIndexIsVector->getElementType()));
> - Out << ")(";
> - }
> -
> - Out << '&';
> -
> - // If the first index is 0 (very typical) we can do a number of
> - // simplifications to clean up the code.
> - Value *FirstOp = I.getOperand();
> - if (!isa<Constant>(FirstOp) || !cast<Constant>(FirstOp)->isNullValue()) {
> - // First index isn't simple, print it the hard way.
> - writeOperand(Ptr);
> - } else {
> - ++I; // Skip the zero index.
> -
> - // Okay, emit the first operand. If Ptr is something that is already address
> - // exposed, like a global, avoid emitting (&foo)[0], just emit foo instead.
> - if (isAddressExposed(Ptr)) {
> - writeOperandInternal(Ptr, Static);
> - } else if (I != E && (*I)->isStructTy()) {
> - // If we didn't already emit the first operand, see if we can print it as
> - // P->f instead of "P[0].f"
> - writeOperand(Ptr);
> - Out << "->field" << cast<ConstantInt>(I.getOperand())->getZExtValue();
> - ++I; // eat the struct index as well.
> - } else {
> - // Instead of emitting P[0][1], emit (*P)[1], which is more idiomatic.
> - Out << "(*";
> - writeOperand(Ptr);
> - Out << ")";
> - }
> - }
> -
> - for (; I != E; ++I) {
> - if ((*I)->isStructTy()) {
> - Out << ".field" << cast<ConstantInt>(I.getOperand())->getZExtValue();
> - } else if ((*I)->isArrayTy()) {
> - Out << ".array[";
> - writeOperandWithCast(I.getOperand(), Instruction::GetElementPtr);
> - Out << ']';
> - } else if (!(*I)->isVectorTy()) {
> - Out << '[';
> - writeOperandWithCast(I.getOperand(), Instruction::GetElementPtr);
> - Out << ']';
> - } else {
> - // If the last index is into a vector, then print it out as "+j)". This
> - // works with the 'LastIndexIsVector' code above.
> - if (isa<Constant>(I.getOperand()) &&
> - cast<Constant>(I.getOperand())->isNullValue()) {
> - Out << "))"; // avoid "+0".
> - } else {
> - Out << ")+(";
> - writeOperandWithCast(I.getOperand(), Instruction::GetElementPtr);
> - Out << "))";
> - }
> - }
> - }
> - Out << ")";
> -}
> -
> -void CWriter::writeMemoryAccess(Value *Operand, Type *OperandType,
> - bool IsVolatile, unsigned Alignment) {
> -
> - bool IsUnaligned = Alignment &&
> - Alignment < TD->getABITypeAlignment(OperandType);
> -
> - if (!IsUnaligned)
> - Out << '*';
> - if (IsVolatile || IsUnaligned) {
> - Out << "((";
> - if (IsUnaligned)
> - Out << "struct __attribute__ ((packed, aligned(" << Alignment << "))) {";
> - printType(Out, OperandType, false, IsUnaligned ? "data" : "volatile*");
> - if (IsUnaligned) {
> - Out << "; } ";
> - if (IsVolatile) Out << "volatile ";
> - Out << "*";
> - }
> - Out << ")";
> - }
> -
> - writeOperand(Operand);
> -
> - if (IsVolatile || IsUnaligned) {
> - Out << ')';
> - if (IsUnaligned)
> - Out << "->data";
> - }
> -}
> -
> -void CWriter::visitLoadInst(LoadInst &I) {
> - writeMemoryAccess(I.getOperand(0), I.getType(), I.isVolatile(),
> - I.getAlignment());
> -
> -}
> -
> -void CWriter::visitStoreInst(StoreInst &I) {
> - writeMemoryAccess(I.getPointerOperand(), I.getOperand(0)->getType(),
> - I.isVolatile(), I.getAlignment());
> - Out << " = ";
> - Value *Operand = I.getOperand(0);
> - Constant *BitMask = 0;
> - if (IntegerType* ITy = dyn_cast<IntegerType>(Operand->getType()))
> - if (!ITy->isPowerOf2ByteWidth())
> - // We have a bit width that doesn't match an even power-of-2 byte
> - // size. Consequently we must & the value with the type's bit mask
> - BitMask = ConstantInt::get(ITy, ITy->getBitMask());
> - if (BitMask)
> - Out << "((";
> - writeOperand(Operand);
> - if (BitMask) {
> - Out << ") & ";
> - printConstant(BitMask, false);
> - Out << ")";
> - }
> -}
> -
> -void CWriter::visitGetElementPtrInst(GetElementPtrInst &I) {
> - printGEPExpression(I.getPointerOperand(), gep_type_begin(I),
> - gep_type_end(I), false);
> -}
> -
> -void CWriter::visitVAArgInst(VAArgInst &I) {
> - Out << "va_arg(*(va_list*)";
> - writeOperand(I.getOperand(0));
> - Out << ", ";
> - printType(Out, I.getType());
> - Out << ");\n ";
> -}
> -
> -void CWriter::visitInsertElementInst(InsertElementInst &I) {
> - Type *EltTy = I.getType()->getElementType();
> - writeOperand(I.getOperand(0));
> - Out << ";\n ";
> - Out << "((";
> - printType(Out, PointerType::getUnqual(EltTy));
> - Out << ")(&" << GetValueName(&I) << "))[";
> - writeOperand(I.getOperand(2));
> - Out << "] = (";
> - writeOperand(I.getOperand(1));
> - Out << ")";
> -}
> -
> -void CWriter::visitExtractElementInst(ExtractElementInst &I) {
> - // We know that our operand is not inlined.
> - Out << "((";
> - Type *EltTy =
> - cast<VectorType>(I.getOperand(0)->getType())->getElementType();
> - printType(Out, PointerType::getUnqual(EltTy));
> - Out << ")(&" << GetValueName(I.getOperand(0)) << "))[";
> - writeOperand(I.getOperand(1));
> - Out << "]";
> -}
> -
> -void CWriter::visitShuffleVectorInst(ShuffleVectorInst &SVI) {
> - Out << "(";
> - printType(Out, SVI.getType());
> - Out << "){ ";
> - VectorType *VT = SVI.getType();
> - unsigned NumElts = VT->getNumElements();
> - Type *EltTy = VT->getElementType();
> -
> - for (unsigned i = 0; i != NumElts; ++i) {
> - if (i) Out << ", ";
> - int SrcVal = SVI.getMaskValue(i);
> - if ((unsigned)SrcVal >= NumElts*2) {
> - Out << " 0/*undef*/ ";
> - } else {
> - Value *Op = SVI.getOperand((unsigned)SrcVal >= NumElts);
> - if (isa<Instruction>(Op)) {
> - // Do an extractelement of this value from the appropriate input.
> - Out << "((";
> - printType(Out, PointerType::getUnqual(EltTy));
> - Out << ")(&" << GetValueName(Op)
> - << "))[" << (SrcVal & (NumElts-1)) << "]";
> - } else if (isa<ConstantAggregateZero>(Op) || isa<UndefValue>(Op)) {
> - Out << "0";
> - } else {
> - printConstant(cast<ConstantVector>(Op)->getOperand(SrcVal &
> - (NumElts-1)),
> - false);
> - }
> - }
> - }
> - Out << "}";
> -}
> -
> -void CWriter::visitInsertValueInst(InsertValueInst &IVI) {
> - // Start by copying the entire aggregate value into the result variable.
> - writeOperand(IVI.getOperand(0));
> - Out << ";\n ";
> -
> - // Then do the insert to update the field.
> - Out << GetValueName(&IVI);
> - for (const unsigned *b = IVI.idx_begin(), *i = b, *e = IVI.idx_end();
> - i != e; ++i) {
> - Type *IndexedTy =
> - ExtractValueInst::getIndexedType(IVI.getOperand(0)->getType(),
> - makeArrayRef(b, i+1));
> - if (IndexedTy->isArrayTy())
> - Out << ".array[" << *i << "]";
> - else
> - Out << ".field" << *i;
> - }
> - Out << " = ";
> - writeOperand(IVI.getOperand(1));
> -}
> -
> -void CWriter::visitExtractValueInst(ExtractValueInst &EVI) {
> - Out << "(";
> - if (isa<UndefValue>(EVI.getOperand(0))) {
> - Out << "(";
> - printType(Out, EVI.getType());
> - Out << ") 0/*UNDEF*/";
> - } else {
> - Out << GetValueName(EVI.getOperand(0));
> - for (const unsigned *b = EVI.idx_begin(), *i = b, *e = EVI.idx_end();
> - i != e; ++i) {
> - Type *IndexedTy =
> - ExtractValueInst::getIndexedType(EVI.getOperand(0)->getType(),
> - makeArrayRef(b, i+1));
> - if (IndexedTy->isArrayTy())
> - Out << ".array[" << *i << "]";
> - else
> - Out << ".field" << *i;
> - }
> - }
> - Out << ")";
> -}
> -
> -//===----------------------------------------------------------------------===//
> -// External Interface declaration
> -//===----------------------------------------------------------------------===//
> -
> -bool CTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
> - formatted_raw_ostream &o,
> - CodeGenFileType FileType,
> - bool DisableVerify) {
> - if (FileType != TargetMachine::CGFT_AssemblyFile) return true;
> -
> - PM.add(createGCLoweringPass());
> - PM.add(createLowerInvokePass());
> - PM.add(createCFGSimplificationPass()); // clean up after lower invoke.
> - PM.add(new CWriter(o));
> - PM.add(createGCInfoDeleter());
> - return false;
> -}
>
> Removed: llvm/trunk/lib/Target/CBackend/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/CMakeLists.txt?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/CMakeLists.txt (original)
> +++ llvm/trunk/lib/Target/CBackend/CMakeLists.txt (removed)
> @@ -1,5 +0,0 @@
> -add_llvm_target(CBackendCodeGen
> - CBackend.cpp
> - )
> -
> -add_subdirectory(TargetInfo)
>
> Removed: llvm/trunk/lib/Target/CBackend/CTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/CTargetMachine.h?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/CTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/CBackend/CTargetMachine.h (removed)
> @@ -1,42 +0,0 @@
> -//===-- CTargetMachine.h - TargetMachine for the C backend ------*- C++ -*-===//
> -//
> -// The LLVM Compiler Infrastructure
> -//
> -// This file is distributed under the University of Illinois Open Source
> -// License. See LICENSE.TXT for details.
> -//
> -//===----------------------------------------------------------------------===//
> -//
> -// This file declares the TargetMachine that is used by the C backend.
> -//
> -//===----------------------------------------------------------------------===//
> -
> -#ifndef CTARGETMACHINE_H
> -#define CTARGETMACHINE_H
> -
> -#include "llvm/Target/TargetMachine.h"
> -#include "llvm/Target/TargetData.h"
> -
> -namespace llvm {
> -
> -struct CTargetMachine : public TargetMachine {
> - CTargetMachine(const Target &T, StringRef TT,
> - StringRef CPU, StringRef FS, const TargetOptions &Options,
> - Reloc::Model RM, CodeModel::Model CM,
> - CodeGenOpt::Level OL)
> - : TargetMachine(T, TT, CPU, FS, Options) { }
> -
> - virtual bool addPassesToEmitFile(PassManagerBase &PM,
> - formatted_raw_ostream &Out,
> - CodeGenFileType FileType,
> - bool DisableVerify);
> -
> - virtual const TargetData *getTargetData() const { return 0; }
> -};
> -
> -extern Target TheCBackendTarget;
> -
> -} // End llvm namespace
> -
> -
> -#endif
>
> Removed: llvm/trunk/lib/Target/CBackend/LLVMBuild.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/LLVMBuild.txt?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/LLVMBuild.txt (original)
> +++ llvm/trunk/lib/Target/CBackend/LLVMBuild.txt (removed)
> @@ -1,31 +0,0 @@
> -;===- ./lib/Target/CBackend/LLVMBuild.txt ----------------------*- Conf -*--===;
> -;
> -; The LLVM Compiler Infrastructure
> -;
> -; This file is distributed under the University of Illinois Open Source
> -; License. See LICENSE.TXT for details.
> -;
> -;===------------------------------------------------------------------------===;
> -;
> -; This is an LLVMBuild description file for the components in this subdirectory.
> -;
> -; For more information on the LLVMBuild system, please see:
> -;
> -; http://llvm.org/docs/LLVMBuild.html
> -;
> -;===------------------------------------------------------------------------===;
> -
> -[common]
> -subdirectories = TargetInfo
> -
> -[component_0]
> -type = TargetGroup
> -name = CBackend
> -parent = Target
> -
> -[component_1]
> -type = Library
> -name = CBackendCodeGen
> -parent = CBackend
> -required_libraries = Analysis CBackendInfo CodeGen Core MC Scalar Support Target TransformUtils
> -add_to_library_groups = CBackend
>
> Removed: llvm/trunk/lib/Target/CBackend/Makefile
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/Makefile?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/Makefile (original)
> +++ llvm/trunk/lib/Target/CBackend/Makefile (removed)
> @@ -1,16 +0,0 @@
> -##===- lib/Target/CBackend/Makefile ------------------------*- Makefile -*-===##
> -#
> -# The LLVM Compiler Infrastructure
> -#
> -# This file is distributed under the University of Illinois Open Source
> -# License. See LICENSE.TXT for details.
> -#
> -##===----------------------------------------------------------------------===##
> -
> -LEVEL = ../../..
> -LIBRARYNAME = LLVMCBackendCodeGen
> -DIRS = TargetInfo
> -
> -include $(LEVEL)/Makefile.common
> -
> -CompileCommonOpts += -Wno-format
>
> Removed: llvm/trunk/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp (original)
> +++ llvm/trunk/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp (removed)
> @@ -1,21 +0,0 @@
> -//===-- CBackendTargetInfo.cpp - CBackend Target Implementation -----------===//
> -//
> -// The LLVM Compiler Infrastructure
> -//
> -// This file is distributed under the University of Illinois Open Source
> -// License. See LICENSE.TXT for details.
> -//
> -//===----------------------------------------------------------------------===//
> -
> -#include "CTargetMachine.h"
> -#include "llvm/Module.h"
> -#include "llvm/Support/TargetRegistry.h"
> -using namespace llvm;
> -
> -Target llvm::TheCBackendTarget;
> -
> -extern "C" void LLVMInitializeCBackendTargetInfo() {
> - RegisterTarget<> X(TheCBackendTarget, "c", "C backend");
> -}
> -
> -extern "C" void LLVMInitializeCBackendTargetMC() {}
>
> Removed: llvm/trunk/lib/Target/CBackend/TargetInfo/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/TargetInfo/CMakeLists.txt?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/TargetInfo/CMakeLists.txt (original)
> +++ llvm/trunk/lib/Target/CBackend/TargetInfo/CMakeLists.txt (removed)
> @@ -1,5 +0,0 @@
> -include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
> -
> -add_llvm_library(LLVMCBackendInfo
> - CBackendTargetInfo.cpp
> - )
>
> Removed: llvm/trunk/lib/Target/CBackend/TargetInfo/LLVMBuild.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/TargetInfo/LLVMBuild.txt?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/TargetInfo/LLVMBuild.txt (original)
> +++ llvm/trunk/lib/Target/CBackend/TargetInfo/LLVMBuild.txt (removed)
> @@ -1,23 +0,0 @@
> -;===- ./lib/Target/CBackend/TargetInfo/LLVMBuild.txt -----------*- Conf -*--===;
> -;
> -; The LLVM Compiler Infrastructure
> -;
> -; This file is distributed under the University of Illinois Open Source
> -; License. See LICENSE.TXT for details.
> -;
> -;===------------------------------------------------------------------------===;
> -;
> -; This is an LLVMBuild description file for the components in this subdirectory.
> -;
> -; For more information on the LLVMBuild system, please see:
> -;
> -; http://llvm.org/docs/LLVMBuild.html
> -;
> -;===------------------------------------------------------------------------===;
> -
> -[component_0]
> -type = Library
> -name = CBackendInfo
> -parent = CBackend
> -required_libraries = MC Support Target
> -add_to_library_groups = CBackend
>
> Removed: llvm/trunk/lib/Target/CBackend/TargetInfo/Makefile
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CBackend/TargetInfo/Makefile?rev=153306&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/CBackend/TargetInfo/Makefile (original)
> +++ llvm/trunk/lib/Target/CBackend/TargetInfo/Makefile (removed)
> @@ -1,15 +0,0 @@
> -##===- lib/Target/CBackend/TargetInfo/Makefile -------------*- Makefile -*-===##
> -#
> -# The LLVM Compiler Infrastructure
> -#
> -# This file is distributed under the University of Illinois Open Source
> -# License. See LICENSE.TXT for details.
> -#
> -##===----------------------------------------------------------------------===##
> -LEVEL = ../../../..
> -LIBRARYNAME = LLVMCBackendInfo
> -
> -# Hack: we need to include 'main' target directory to grab private headers
> -CPPFLAGS = -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
> -
> -include $(LEVEL)/Makefile.common
>
> Modified: llvm/trunk/lib/Target/LLVMBuild.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/LLVMBuild.txt?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/LLVMBuild.txt (original)
> +++ llvm/trunk/lib/Target/LLVMBuild.txt Fri Mar 23 00:50:46 2012
> @@ -16,7 +16,7 @@
> ;===------------------------------------------------------------------------===;
>
> [common]
> -subdirectories = ARM CBackend CellSPU CppBackend Hexagon MBlaze MSP430 Mips PTX PowerPC Sparc X86 XCore
> +subdirectories = ARM CellSPU CppBackend Hexagon MBlaze MSP430 Mips PTX PowerPC Sparc X86 XCore
>
> ; This is a special group whose required libraries are extended (by llvm-build)
> ; with the best execution engine (the native JIT, if available, or the
>
> Modified: llvm/trunk/projects/sample/autoconf/configure.ac
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/projects/sample/autoconf/configure.ac?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/projects/sample/autoconf/configure.ac (original)
> +++ llvm/trunk/projects/sample/autoconf/configure.ac Fri Mar 23 00:50:46 2012
> @@ -554,7 +554,7 @@
> enableval=host
> fi
> case "$enableval" in
> - all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 Hexagon CBackend CppBackend MBlaze PTX" ;;
> + all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 Hexagon CppBackend MBlaze PTX" ;;
> *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
> case "$a_target" in
> x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
> @@ -567,7 +567,6 @@
> xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
> msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
> hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
> - cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
> cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
> mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
> ptx) TARGETS_TO_BUILD="PTX $TARGETS_TO_BUILD" ;;
> @@ -644,21 +643,6 @@
> AC_SUBST(LLVM_ENUM_ASM_PARSERS)
> AC_SUBST(LLVM_ENUM_DISASSEMBLERS)
>
> -dnl Prevent the CBackend from using printf("%a") for floating point so older
> -dnl C compilers that cannot deal with the 0x0p+0 hex floating point format
> -dnl can still compile the CBE's output
> -AC_ARG_ENABLE([cbe-printf-a],AS_HELP_STRING([--enable-cbe-printf-a],
> - [Enable C Backend output with hex floating point via %a (default is YES)]),,
> - enableval=default)
> -case "$enableval" in
> - yes) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
> - no) AC_SUBST(ENABLE_CBE_PRINTF_A,[0]) ;;
> - default) AC_SUBST(ENABLE_CBE_PRINTF_A,[1]) ;;
> - *) AC_MSG_ERROR([Invalid setting for --enable-cbe-printf-a. Use "yes" or "no"]) ;;
> -esac
> -AC_DEFINE_UNQUOTED([ENABLE_CBE_PRINTF_A],$ENABLE_CBE_PRINTF_A,
> - [Define if CBE is enabled for printf %a output])
> -
> dnl Override the option to use for optimized builds.
> AC_ARG_WITH(optimize-option,
> AS_HELP_STRING([--with-optimize-option],
>
> Modified: llvm/trunk/projects/sample/configure
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/projects/sample/configure?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/projects/sample/configure (original)
> +++ llvm/trunk/projects/sample/configure Fri Mar 23 00:50:46 2012
> @@ -704,7 +704,6 @@
> LLVM_ENUM_ASM_PRINTERS
> LLVM_ENUM_ASM_PARSERS
> LLVM_ENUM_DISASSEMBLERS
> -ENABLE_CBE_PRINTF_A
> OPTIMIZE_OPTION
> EXTRA_OPTIONS
> EXTRA_LD_OPTIONS
> @@ -1402,8 +1401,6 @@
> target1,target2,... Valid targets are: host, x86,
> x86_64, sparc, powerpc, arm, mips, spu, hexagon,
> xcore, msp430, ptx, cbe, and cpp (default=all)
> - --enable-cbe-printf-a Enable C Backend output with hex floating point via
> - %a (default is YES)
> --enable-bindings Build specific language bindings:
> all,auto,none,{binding-name} (default=auto)
> --enable-libffi Check for the presence of libffi (default is NO)
> @@ -5229,7 +5226,7 @@
> enableval=host
> fi
> case "$enableval" in
> - all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 Hexagon CBackend CppBackend MBlaze PTX" ;;
> + all) TARGETS_TO_BUILD="X86 Sparc PowerPC ARM Mips CellSPU XCore MSP430 Hexagon CppBackend MBlaze PTX" ;;
> *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
> case "$a_target" in
> x86) TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
> @@ -5242,7 +5239,6 @@
> xcore) TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
> msp430) TARGETS_TO_BUILD="MSP430 $TARGETS_TO_BUILD" ;;
> hexagon) TARGETS_TO_BUILD="Hexagon $TARGETS_TO_BUILD" ;;
> - cbe) TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
> cpp) TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
> mblaze) TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
> ptx) TARGETS_TO_BUILD="PTX $TARGETS_TO_BUILD" ;;
> @@ -5342,30 +5338,6 @@
>
>
>
> -# Check whether --enable-cbe-printf-a was given.
> -if test "${enable_cbe_printf_a+set}" = set; then
> - enableval=$enable_cbe_printf_a;
> -else
> - enableval=default
> -fi
> -
> -case "$enableval" in
> - yes) ENABLE_CBE_PRINTF_A=1
> - ;;
> - no) ENABLE_CBE_PRINTF_A=0
> - ;;
> - default) ENABLE_CBE_PRINTF_A=1
> - ;;
> - *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-cbe-printf-a. Use \"yes\" or \"no\"" >&5
> -echo "$as_me: error: Invalid setting for --enable-cbe-printf-a. Use \"yes\" or \"no\"" >&2;}
> - { (exit 1); exit 1; }; } ;;
> -esac
> -
> -cat >>confdefs.h <<_ACEOF
> -#define ENABLE_CBE_PRINTF_A $ENABLE_CBE_PRINTF_A
> -_ACEOF
> -
> -
>
> # Check whether --with-optimize-option was given.
> if test "${with_optimize_option+set}" = set; then
> @@ -10297,7 +10269,7 @@
> lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
> lt_status=$lt_dlunknown
> cat > conftest.$ac_ext <<EOF
> -#line 10300 "configure"
> +#line 10272 "configure"
> #include "confdefs.h"
>
> #if HAVE_DLFCN_H
> @@ -21692,7 +21664,6 @@
> LLVM_ENUM_ASM_PRINTERS!$LLVM_ENUM_ASM_PRINTERS$ac_delim
> LLVM_ENUM_ASM_PARSERS!$LLVM_ENUM_ASM_PARSERS$ac_delim
> LLVM_ENUM_DISASSEMBLERS!$LLVM_ENUM_DISASSEMBLERS$ac_delim
> -ENABLE_CBE_PRINTF_A!$ENABLE_CBE_PRINTF_A$ac_delim
> OPTIMIZE_OPTION!$OPTIMIZE_OPTION$ac_delim
> EXTRA_OPTIONS!$EXTRA_OPTIONS$ac_delim
> EXTRA_LD_OPTIONS!$EXTRA_LD_OPTIONS$ac_delim
> @@ -21776,7 +21747,7 @@
> LTLIBOBJS!$LTLIBOBJS$ac_delim
> _ACEOF
>
> - if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 89; then
> + if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 88; then
> break
> elif $ac_last_try; then
> { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
>
> Modified: llvm/trunk/tools/bugpoint/ExecutionDriver.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/bugpoint/ExecutionDriver.cpp?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/tools/bugpoint/ExecutionDriver.cpp (original)
> +++ llvm/trunk/tools/bugpoint/ExecutionDriver.cpp Fri Mar 23 00:50:46 2012
> @@ -28,8 +28,7 @@
> // for miscompilation.
> //
> enum OutputType {
> - AutoPick, RunLLI, RunJIT, RunLLC, RunLLCIA, RunCBE, CBE_bug, LLC_Safe,
> - CompileCustom, Custom
> + AutoPick, RunLLI, RunJIT, RunLLC, RunLLCIA, LLC_Safe, CompileCustom, Custom
> };
>
> cl::opt<double>
> @@ -48,8 +47,6 @@
> clEnumValN(RunLLC, "run-llc", "Compile with LLC"),
> clEnumValN(RunLLCIA, "run-llc-ia",
> "Compile with LLC with integrated assembler"),
> - clEnumValN(RunCBE, "run-cbe", "Compile with CBE"),
> - clEnumValN(CBE_bug,"cbe-bug", "Find CBE bugs"),
> clEnumValN(LLC_Safe, "llc-safe", "Use LLC for all"),
> clEnumValN(CompileCustom, "compile-custom",
> "Use -compile-command to define a command to "
> @@ -64,7 +61,6 @@
> SafeInterpreterSel(cl::desc("Specify \"safe\" i.e. known-good backend:"),
> cl::values(clEnumValN(AutoPick, "safe-auto", "Use best guess"),
> clEnumValN(RunLLC, "safe-run-llc", "Compile with LLC"),
> - clEnumValN(RunCBE, "safe-run-cbe", "Compile with CBE"),
> clEnumValN(Custom, "safe-run-custom",
> "Use -exec-command to define a command to execute "
> "the bitcode. Useful for cross-compilation."),
> @@ -154,10 +150,6 @@
>
> switch (InterpreterSel) {
> case AutoPick:
> - InterpreterSel = RunCBE;
> - Interpreter =
> - AbstractInterpreter::createCBE(getToolName(), Message, GCCBinary,
> - &ToolArgv, &GCCToolArgv);
> if (!Interpreter) {
> InterpreterSel = RunJIT;
> Interpreter = AbstractInterpreter::createJIT(getToolName(), Message,
> @@ -195,12 +187,6 @@
> Interpreter = AbstractInterpreter::createJIT(getToolName(), Message,
> &ToolArgv);
> break;
> - case RunCBE:
> - case CBE_bug:
> - Interpreter = AbstractInterpreter::createCBE(getToolName(), Message,
> - GCCBinary, &ToolArgv,
> - &GCCToolArgv);
> - break;
> case CompileCustom:
> Interpreter =
> AbstractInterpreter::createCustomCompiler(Message, CustomCompileCommand);
> @@ -221,17 +207,6 @@
> std::vector<std::string> SafeToolArgs = SafeToolArgv;
> switch (SafeInterpreterSel) {
> case AutoPick:
> - // In "cbe-bug" mode, default to using LLC as the "safe" backend.
> - if (!SafeInterpreter &&
> - InterpreterSel == CBE_bug) {
> - SafeInterpreterSel = RunLLC;
> - SafeToolArgs.push_back("--relocation-model=pic");
> - SafeInterpreter = AbstractInterpreter::createLLC(Path.c_str(), Message,
> - GCCBinary,
> - &SafeToolArgs,
> - &GCCToolArgv);
> - }
> -
> // In "llc-safe" mode, default to using LLC as the "safe" backend.
> if (!SafeInterpreter &&
> InterpreterSel == LLC_Safe) {
> @@ -243,17 +218,6 @@
> &GCCToolArgv);
> }
>
> - // Pick a backend that's different from the test backend. The JIT and
> - // LLC backends share a lot of code, so prefer to use the CBE as the
> - // safe back-end when testing them.
> - if (!SafeInterpreter &&
> - InterpreterSel != RunCBE) {
> - SafeInterpreterSel = RunCBE;
> - SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message,
> - GCCBinary,
> - &SafeToolArgs,
> - &GCCToolArgv);
> - }
> if (!SafeInterpreter &&
> InterpreterSel != RunLLC &&
> InterpreterSel != RunJIT) {
> @@ -277,11 +241,6 @@
> &GCCToolArgv,
> SafeInterpreterSel == RunLLCIA);
> break;
> - case RunCBE:
> - SafeInterpreter = AbstractInterpreter::createCBE(Path.c_str(), Message,
> - GCCBinary, &SafeToolArgs,
> - &GCCToolArgv);
> - break;
> case Custom:
> SafeInterpreter =
> AbstractInterpreter::createCustomExecutor(Message, CustomExecCommand);
> @@ -459,8 +418,8 @@
> errs() << Error;
> if (Interpreter != SafeInterpreter) {
> errs() << "*** There is a bug running the \"safe\" backend. Either"
> - << " debug it (for example with the -run-cbe bugpoint option,"
> - << " if CBE is being used as the \"safe\" backend), or fix the"
> + << " debug it (for example with the -run-jit bugpoint option,"
> + << " if JIT is being used as the \"safe\" backend), or fix the"
> << " error some other way.\n";
> }
> return false;
>
> Modified: llvm/trunk/tools/bugpoint/ToolRunner.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/bugpoint/ToolRunner.cpp?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/tools/bugpoint/ToolRunner.cpp (original)
> +++ llvm/trunk/tools/bugpoint/ToolRunner.cpp Fri Mar 23 00:50:46 2012
> @@ -623,94 +623,6 @@
> return 0;
> }
>
> -GCC::FileType CBE::OutputCode(const std::string &Bitcode,
> - sys::Path &OutputCFile, std::string &Error,
> - unsigned Timeout, unsigned MemoryLimit) {
> - sys::Path uniqueFile(Bitcode+".cbe.c");
> - std::string ErrMsg;
> - if (uniqueFile.makeUnique(true, &ErrMsg)) {
> - errs() << "Error making unique filename: " << ErrMsg << "\n";
> - exit(1);
> - }
> - OutputCFile = uniqueFile;
> - std::vector<const char *> LLCArgs;
> - LLCArgs.push_back(LLCPath.c_str());
> -
> - // Add any extra LLC args.
> - for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i)
> - LLCArgs.push_back(ToolArgs[i].c_str());
> -
> - LLCArgs.push_back("-o");
> - LLCArgs.push_back(OutputCFile.c_str()); // Output to the C file
> - LLCArgs.push_back("-march=c"); // Output C language
> - LLCArgs.push_back(Bitcode.c_str()); // This is the input bitcode
> - LLCArgs.push_back(0);
> -
> - outs() << "<cbe>"; outs().flush();
> - DEBUG(errs() << "\nAbout to run:\t";
> - for (unsigned i = 0, e = LLCArgs.size()-1; i != e; ++i)
> - errs() << " " << LLCArgs[i];
> - errs() << "\n";
> - );
> - if (RunProgramWithTimeout(LLCPath, &LLCArgs[0], sys::Path(), sys::Path(),
> - sys::Path(), Timeout, MemoryLimit))
> - Error = ProcessFailure(LLCPath, &LLCArgs[0], Timeout, MemoryLimit);
> - return GCC::CFile;
> -}
> -
> -void CBE::compileProgram(const std::string &Bitcode, std::string *Error,
> - unsigned Timeout, unsigned MemoryLimit) {
> - sys::Path OutputCFile;
> - OutputCode(Bitcode, OutputCFile, *Error, Timeout, MemoryLimit);
> - OutputCFile.eraseFromDisk();
> -}
> -
> -int CBE::ExecuteProgram(const std::string &Bitcode,
> - const std::vector<std::string> &Args,
> - const std::string &InputFile,
> - const std::string &OutputFile,
> - std::string *Error,
> - const std::vector<std::string> &ArgsForGCC,
> - const std::vector<std::string> &SharedLibs,
> - unsigned Timeout,
> - unsigned MemoryLimit) {
> - sys::Path OutputCFile;
> - OutputCode(Bitcode, OutputCFile, *Error, Timeout, MemoryLimit);
> -
> - FileRemover CFileRemove(OutputCFile.str(), !SaveTemps);
> -
> - std::vector<std::string> GCCArgs(ArgsForGCC);
> - GCCArgs.insert(GCCArgs.end(), SharedLibs.begin(), SharedLibs.end());
> -
> - return gcc->ExecuteProgram(OutputCFile.str(), Args, GCC::CFile,
> - InputFile, OutputFile, Error, GCCArgs,
> - Timeout, MemoryLimit);
> -}
> -
> -/// createCBE - Try to find the 'llc' executable
> -///
> -CBE *AbstractInterpreter::createCBE(const char *Argv0,
> - std::string &Message,
> - const std::string &GCCBinary,
> - const std::vector<std::string> *Args,
> - const std::vector<std::string> *GCCArgs) {
> - sys::Path LLCPath =
> - PrependMainExecutablePath("llc", Argv0, (void *)(intptr_t)&createCBE);
> - if (LLCPath.isEmpty()) {
> - Message =
> - "Cannot find `llc' in executable directory!\n";
> - return 0;
> - }
> -
> - Message = "Found llc: " + LLCPath.str() + "\n";
> - GCC *gcc = GCC::create(Message, GCCBinary, GCCArgs);
> - if (!gcc) {
> - errs() << Message << "\n";
> - exit(1);
> - }
> - return new CBE(LLCPath, gcc, Args);
> -}
> -
> //===---------------------------------------------------------------------===//
> // GCC abstraction
> //
>
> Modified: llvm/trunk/utils/GenLibDeps.pl
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/GenLibDeps.pl?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/utils/GenLibDeps.pl (original)
> +++ llvm/trunk/utils/GenLibDeps.pl Fri Mar 23 00:50:46 2012
> @@ -96,7 +96,6 @@
> $libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
> $libpath =~ s/^BitReader/Bitcode\/Reader/;
> $libpath =~ s/^BitWriter/Bitcode\/Writer/;
> - $libpath =~ s/^CBackend/Target\/CBackend/;
> $libpath =~ s/^CppBackend/Target\/CppBackend/;
> $libpath =~ s/^MSIL/Target\/MSIL/;
> $libpath =~ s/^Core/VMCore/;
> @@ -138,7 +137,6 @@
> $libpath =~ s/^AsmPrinter/CodeGen\/AsmPrinter/;
> $libpath =~ s/^BitReader/Bitcode\/Reader/;
> $libpath =~ s/^BitWriter/Bitcode\/Writer/;
> - $libpath =~ s/^CBackend/Target\/CBackend/;
> $libpath =~ s/^CppBackend/Target\/CppBackend/;
> $libpath =~ s/^MSIL/Target\/MSIL/;
> $libpath =~ s/^Core/VMCore/;
>
> Modified: llvm/trunk/utils/lit/lit/ExampleTests/LLVM.InTree/test/site.exp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/lit/ExampleTests/LLVM.InTree/test/site.exp?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/lit/ExampleTests/LLVM.InTree/test/site.exp (original)
> +++ llvm/trunk/utils/lit/lit/ExampleTests/LLVM.InTree/test/site.exp Fri Mar 23 00:50:46 2012
> @@ -2,7 +2,7 @@
> # Do not edit here. If you wish to override these values
> # edit the last section
> set target_triplet "x86_64-apple-darwin10"
> -set TARGETS_TO_BUILD "X86 Sparc PowerPC ARM Mips CellSPU PIC16 XCore MSP430 Blackfin CBackend MSIL CppBackend"
> +set TARGETS_TO_BUILD "X86 Sparc PowerPC ARM Mips CellSPU PIC16 XCore MSP430 Blackfin MSIL CppBackend"
> set srcroot "/Volumes/Data/ddunbar/llvm"
> set objroot "/Volumes/Data/ddunbar/llvm.obj.64"
> set srcdir "/Volumes/Data/ddunbar/llvm/test"
>
> Modified: llvm/trunk/utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/site.exp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/site.exp?rev=153307&r1=153306&r2=153307&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/site.exp (original)
> +++ llvm/trunk/utils/lit/lit/ExampleTests/LLVM.OutOfTree/obj/test/site.exp Fri Mar 23 00:50:46 2012
> @@ -2,7 +2,7 @@
> # Do not edit here. If you wish to override these values
> # edit the last section
> set target_triplet "x86_64-apple-darwin10"
> -set TARGETS_TO_BUILD "X86 Sparc PowerPC ARM Mips CellSPU PIC16 XCore MSP430 Blackfin CBackend MSIL CppBackend"
> +set TARGETS_TO_BUILD "X86 Sparc PowerPC ARM Mips CellSPU PIC16 XCore MSP430 Blackfin MSIL CppBackend"
> set srcroot "/Volumes/Data/ddunbar/llvm"
> set objroot "/Volumes/Data/ddunbar/llvm.obj.64"
> set srcdir "/Volumes/Data/ddunbar/llvm/test"
>
>
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