[llvm-branch-commits] [llvm-branch] r205765 - Merging r196987:
Tom Stellard
thomas.stellard at amd.com
Tue Apr 8 07:27:53 PDT 2014
Author: tstellar
Date: Tue Apr 8 09:27:52 2014
New Revision: 205765
URL: http://llvm.org/viewvc/llvm-project?rev=205765&view=rev
Log:
Merging r196987:
------------------------------------------------------------------------
r196987 | rafael.espindola | 2013-12-10 19:09:06 -0500 (Tue, 10 Dec 2013) | 2 lines
Move PPC's getDataLayoutString out of line and document it better.
------------------------------------------------------------------------
Modified:
llvm/branches/release_34/lib/Target/PowerPC/PPCSubtarget.h
llvm/branches/release_34/lib/Target/PowerPC/PPCTargetMachine.cpp
Modified: llvm/branches/release_34/lib/Target/PowerPC/PPCSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_34/lib/Target/PowerPC/PPCSubtarget.h?rev=205765&r1=205764&r2=205765&view=diff
==============================================================================
--- llvm/branches/release_34/lib/Target/PowerPC/PPCSubtarget.h (original)
+++ llvm/branches/release_34/lib/Target/PowerPC/PPCSubtarget.h Tue Apr 8 09:27:52 2014
@@ -126,22 +126,6 @@ public:
/// selection.
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
- /// getDataLayoutString - Return the pointer size and type alignment
- /// properties of this subtarget.
- const char *getDataLayoutString() const {
- // Note, the alignment values for f64 and i64 on ppc64 in Darwin
- // documentation are wrong; these are correct (i.e. "what gcc does").
- if (isPPC64() && isSVR4ABI()) {
- if (TargetTriple.getOS() == llvm::Triple::FreeBSD)
- return "E-p:64:64-f64:64:64-i64:64:64-v128:128:128-n32:64";
- else
- return "E-p:64:64-f64:64:64-i64:64:64-f128:128:128-v128:128:128-n32:64";
- }
-
- return isPPC64() ? "E-p:64:64-f64:64:64-i64:64:64-f128:64:128-n32:64"
- : "E-p:32:32-f64:64:64-i64:64:64-f128:64:128-n32";
- }
-
/// \brief Reset the features for the PowerPC target.
virtual void resetSubtargetFeatures(const MachineFunction *MF);
private:
Modified: llvm/branches/release_34/lib/Target/PowerPC/PPCTargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_34/lib/Target/PowerPC/PPCTargetMachine.cpp?rev=205765&r1=205764&r2=205765&view=diff
==============================================================================
--- llvm/branches/release_34/lib/Target/PowerPC/PPCTargetMachine.cpp (original)
+++ llvm/branches/release_34/lib/Target/PowerPC/PPCTargetMachine.cpp Tue Apr 8 09:27:52 2014
@@ -33,6 +33,44 @@ extern "C" void LLVMInitializePowerPCTar
RegisterTargetMachine<PPC64TargetMachine> C(ThePPC64LETarget);
}
+/// Return the datalayout string of a subtarget.
+static std::string getDataLayoutString(const PPCSubtarget &ST) {
+ const Triple &T = ST.getTargetTriple();
+
+ // PPC is big endian
+ std::string Ret = "E";
+
+ // PPC64 has 64 bit pointers, PPC32 has 32 bit pointers.
+ if (ST.isPPC64())
+ Ret += "-p:64:64";
+ else
+ Ret += "-p:32:32";
+
+ // Note, the alignment values for f64 and i64 on ppc64 in Darwin
+ // documentation are wrong; these are correct (i.e. "what gcc does").
+ Ret += "-f64:64:64-i64:64:64";
+
+ // Set support for 128 floats depending on the ABI.
+ if (ST.isPPC64() && ST.isSVR4ABI()) {
+ if (T.getOS() != llvm::Triple::FreeBSD)
+ Ret += "-f128:128:128";
+ } else {
+ Ret += "-f128:64:128";
+ }
+
+ // Some ABIs support 128 bit vectors.
+ if (ST.isPPC64() && ST.isSVR4ABI())
+ Ret += "-v128:128:128";
+
+ // PPC64 has 32 and 64 bit register, PPC32 has only 32 bit ones.
+ if (ST.isPPC64())
+ Ret += "-n32:64";
+ else
+ Ret += "-n32";
+
+ return Ret;
+}
+
PPCTargetMachine::PPCTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
@@ -41,7 +79,7 @@ PPCTargetMachine::PPCTargetMachine(const
bool is64Bit)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
Subtarget(TT, CPU, FS, is64Bit),
- DL(Subtarget.getDataLayoutString()), InstrInfo(*this),
+ DL(getDataLayoutString(Subtarget)), InstrInfo(*this),
FrameLowering(Subtarget), JITInfo(*this, is64Bit),
TLInfo(*this), TSInfo(*this),
InstrItins(Subtarget.getInstrItineraryData()) {
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