[llvm-commits] [llvm] r170532 - in /llvm/trunk: include/llvm/Target/TargetLowering.h lib/CodeGen/SelectionDAG/TargetLowering.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/ARMISelLowering.h lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86ISelLowering.h

Reed Kotler rkotler at mips.com
Sat Dec 29 05:47:01 PST 2012


Sorry.. wrong patch number but still one of yours.

r170550

I did the bisect using git and matched up the commit number wrong 
because the lightbulb in my office is burned out and it's hard to see.

On 12/28/2012 11:26 PM, Reed Kotler wrote:
> This patch caused a regression in the Mips compiler.
>
> kotler at laptop-rkotler:~/test$ ~/llvm/install/bin/clang++ -target
> mipsel-linux-gnu -c -O3 test.cc -S -v
> clang version 3.3
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:clang.git
> 16f90bfe53ed637156c315cbbeddcf2d91266d67)
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:llvm.git
> c698d3a2a40f0909d16cbe857685f0f22cb9ae43)
> Target: mipsel--linux-gnu
> Thread model: posix
>   "/home/rkotler/llvm/install/bin/clang" -cc1 -triple mipsel--linux-gnu
> -S -disable-free -main-file-name test.cc -mrelocation-model static
> -mdisable-fp-elim -fmath-errno -mconstructor-aliases -target-cpu mips32
> -target-abi o32 -mfloat-abi hard -target-linker-version 2.20.1
> -momit-leaf-frame-pointer -v -coverage-file /home/rkotler/test/test.s
> -resource-dir /home/rkotler/llvm/install/bin/../lib/clang/3.3
> -fmodule-cache-path /var/tmp/clang-module-cache -internal-isystem
> /usr/local/include -internal-isystem
> /home/rkotler/llvm/install/bin/../lib/clang/3.3/include
> -internal-externc-isystem /include -internal-externc-isystem
> /usr/include -O3 -fdeprecated-macro -fno-dwarf-directory-asm
> -fdebug-compilation-dir /home/rkotler/test -ferror-limit 19
> -fmessage-length 80 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions
> -fexceptions -fdiagnostics-show-option -fcolor-diagnostics
> -backend-option -vectorize-loops -o test.s -x c++ test.cc
> clang -cc1 version 3.3 based upon LLVM 3.3svn default target
> i386-pc-linux-gnu
> ignoring nonexistent directory "/include"
> #include "..." search starts here:
> #include <...> search starts here:
>   /usr/local/include
>   /home/rkotler/llvm/install/bin/../lib/clang/3.3/include
>   /usr/include
> End of search list.
> ExpandIntegerOperand Op #2: 0xd33ed98: i32,i32 = sra_parts 0xd338628,
> 0xd338738, 0xd331180 [ID=0]
>
> Do not know how to expand this operator's operand!
> UNREACHABLE executed at
> /home/rkotler/workspace/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:2451!
>
> 0  clang     0x0a68f1e2
> 1  clang     0x0a68ee39
> 2            0x0032a400 __kernel_sigreturn + 0
> 3  libc.so.6 0x0013dab2 abort + 386
> 4  clang     0x0a6779bf
> 5  clang     0x09f76dec
> 6  clang     0x09f1a182
> 7  clang     0x09f1e82a llvm::SelectionDAG::LegalizeTypes() + 68
> 8  clang     0x09ec9993 llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 1061
> 9  clang     0x09ec9271
> llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
> const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 219
> 10 clang     0x09ecbe49
> llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 2559
> 11 clang     0x09ec8779
> llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 723
> 12 clang     0x09aaf494
> 13 clang     0x0a04ac85
> llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 87
> 14 clang     0x0a61a80a
> llvm::FPPassManager::runOnFunction(llvm::Function&) + 306
> 15 clang     0x0a61a9b1 llvm::FPPassManager::runOnModule(llvm::Module&)
> + 97
> 16 clang     0x0a61acc2 llvm::MPPassManager::runOnModule(llvm::Module&)
> + 498
> 17 clang     0x0a61b25c llvm::PassManagerImpl::run(llvm::Module&) + 234
> 18 clang     0x0a61b575 llvm::PassManager::run(llvm::Module&) + 39
> 19 clang     0x089bc788
> 20 clang     0x089bc81a
> clang::EmitBackendOutput(clang::DiagnosticsEngine&,
> clang::CodeGenOptions const&, clang::TargetOptions const&,
> clang::LangOptions const&, llvm::Module*, clang::BackendAction,
> llvm::raw_ostream*) + 77
> 21 clang     0x089b8912
> 22 clang     0x08b66f96 clang::ParseAST(clang::Sema&, bool, bool) + 690
> 23 clang     0x087af54e clang::ASTFrontendAction::ExecuteAction() + 284
> 24 clang     0x089b7a53 clang::CodeGenAction::ExecuteAction() + 1065
> 25 clang     0x087af184 clang::FrontendAction::Execute() + 180
> 26 clang     0x08787ece
> clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 748
> 27 clang     0x0875b07a
> clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 918
> 28 clang     0x0874c66f cc1_main(char const**, char const**, char
> const*, void*) + 805
> 29 clang     0x08755f42 main + 521
> 30 libc.so.6 0x00126bd6 __libc_start_main + 230
> 31 clang     0x0874bda1
> Stack dump:
> 0.    Program arguments: /home/rkotler/llvm/install/bin/clang -cc1
> -triple mipsel--linux-gnu -S -disable-free -main-file-name test.cc
> -mrelocation-model static -mdisable-fp-elim -fmath-errno
> -mconstructor-aliases -target-cpu mips32 -target-abi o32 -mfloat-abi
> hard -target-linker-version 2.20.1 -momit-leaf-frame-pointer -v
> -coverage-file /home/rkotler/test/test.s -resource-dir
> /home/rkotler/llvm/install/bin/../lib/clang/3.3 -fmodule-cache-path
> /var/tmp/clang-module-cache -internal-isystem /usr/local/include
> -internal-isystem
> /home/rkotler/llvm/install/bin/../lib/clang/3.3/include
> -internal-externc-isystem /include -internal-externc-isystem
> /usr/include -O3 -fdeprecated-macro -fno-dwarf-directory-asm
> -fdebug-compilation-dir /home/rkotler/test -ferror-limit 19
> -fmessage-length 80 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions
> -fexceptions -fdiagnostics-show-option -fcolor-diagnostics
> -backend-option -vectorize-loops -o test.s -x c++ test.cc
> 1.    <eof> parser at end of file
> 2.    Code generation
> 3.    Running pass 'Function Pass Manager' on module 'test.cc'.
> 4.    Running pass 'MIPS DAG->DAG Pattern Instruction Selection' on
> function '@_Z3fooi'
> clang: error: unable to execute command: Aborted
> clang: error: clang frontend command failed due to signal (use -v to see
> invocation)
> clang version 3.3
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:clang.git
> 16f90bfe53ed637156c315cbbeddcf2d91266d67)
> (gitosis-ePK3LoutQbwPXssp/fMQcEEOCMrvLtNR at public.gmane.org:llvm.git
> c698d3a2a40f0909d16cbe857685f0f22cb9ae43)
> Target: mipsel--linux-gnu
> Thread model: posix
> clang: note: diagnostic msg: PLEASE submit a bug report to
> http://llvm.org/bugs/ and include the crash backtrace, preprocessed
> source, and associated run script.
> clang: note: diagnostic msg:
> ********************
>
> PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
> Preprocessed source(s) and associated run script(s) are located at:
> clang: note: diagnostic msg: /tmp/test-e6EdNG.cpp
> clang: note: diagnostic msg: /tmp/test-e6EdNG.sh
> clang: note: diagnostic msg:
>
> ********************
> rkotler at laptop-rkotler:~/test$
>
>
> On 12/19/2012 03:30 AM, Patrik Hagglund wrote:
>> Author: patha
>> Date: Wed Dec 19 05:30:36 2012
>> New Revision: 170532
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=170532&view=rev
>> Log:
>> Change TargetLowering::findRepresentativeClass to take an MVT, instead
>> of EVT.
>>
>> Modified:
>>      llvm/trunk/include/llvm/Target/TargetLowering.h
>>      llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp
>>      llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
>>      llvm/trunk/lib/Target/ARM/ARMISelLowering.h
>>      llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>>      llvm/trunk/lib/Target/X86/X86ISelLowering.h
>>
>> Modified: llvm/trunk/include/llvm/Target/TargetLowering.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetLowering.h?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/include/llvm/Target/TargetLowering.h (original)
>> +++ llvm/trunk/include/llvm/Target/TargetLowering.h Wed Dec 19
>> 05:30:36 2012
>> @@ -1138,7 +1138,7 @@
>>     /// findRepresentativeClass - Return the largest legal super-reg
>> register class
>>     /// of the register class for the specified type and its
>> associated "cost".
>>     virtual std::pair<const TargetRegisterClass*, uint8_t>
>> -  findRepresentativeClass(EVT VT) const;
>> +  findRepresentativeClass(MVT VT) const;
>>
>>     /// computeRegisterProperties - Once all of the register classes
>> are added,
>>     /// this allows us to compute derived properties we expose.
>>
>> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp Wed Dec 19
>> 05:30:36 2012
>> @@ -712,9 +712,9 @@
>>   /// findRepresentativeClass - Return the largest legal super-reg
>> register class
>>   /// of the register class for the specified type and its associated
>> "cost".
>>   std::pair<const TargetRegisterClass*, uint8_t>
>> -TargetLowering::findRepresentativeClass(EVT VT) const {
>> +TargetLowering::findRepresentativeClass(MVT VT) const {
>>     const TargetRegisterInfo *TRI = getTargetMachine().getRegisterInfo();
>> -  const TargetRegisterClass *RC =
>> RegClassForVT[VT.getSimpleVT().SimpleTy];
>> +  const TargetRegisterClass *RC = RegClassForVT[VT.SimpleTy];
>>     if (!RC)
>>       return std::make_pair(RC, 0);
>>
>>
>> Modified: llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp (original)
>> +++ llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp Wed Dec 19 05:30:36
>> 2012
>> @@ -863,10 +863,10 @@
>>   // due to the common occurrence of cross class copies and
>> subregister insertions
>>   // and extractions.
>>   std::pair<const TargetRegisterClass*, uint8_t>
>> -ARMTargetLowering::findRepresentativeClass(EVT VT) const{
>> +ARMTargetLowering::findRepresentativeClass(MVT VT) const{
>>     const TargetRegisterClass *RRC = 0;
>>     uint8_t Cost = 1;
>> -  switch (VT.getSimpleVT().SimpleTy) {
>> +  switch (VT.SimpleTy) {
>>     default:
>>       return TargetLowering::findRepresentativeClass(VT);
>>     // Use DPR as representative register class for all floating point
>>
>> Modified: llvm/trunk/lib/Target/ARM/ARMISelLowering.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelLowering.h?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/lib/Target/ARM/ARMISelLowering.h (original)
>> +++ llvm/trunk/lib/Target/ARM/ARMISelLowering.h Wed Dec 19 05:30:36 2012
>> @@ -393,7 +393,7 @@
>>                                       unsigned Intrinsic) const;
>>     protected:
>>       std::pair<const TargetRegisterClass*, uint8_t>
>> -    findRepresentativeClass(EVT VT) const;
>> +    findRepresentativeClass(MVT VT) const;
>>
>>     private:
>>       /// Subtarget - Keep a pointer to the ARMSubtarget around so
>> that we can
>>
>> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
>> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Wed Dec 19 05:30:36
>> 2012
>> @@ -1479,10 +1479,10 @@
>>
>>   // FIXME: Why this routine is here? Move to RegInfo!
>>   std::pair<const TargetRegisterClass*, uint8_t>
>> -X86TargetLowering::findRepresentativeClass(EVT VT) const{
>> +X86TargetLowering::findRepresentativeClass(MVT VT) const{
>>     const TargetRegisterClass *RRC = 0;
>>     uint8_t Cost = 1;
>> -  switch (VT.getSimpleVT().SimpleTy) {
>> +  switch (VT.SimpleTy) {
>>     default:
>>       return TargetLowering::findRepresentativeClass(VT);
>>     case MVT::i8: case MVT::i16: case MVT::i32: case MVT::i64:
>>
>> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=170532&r1=170531&r2=170532&view=diff
>>
>> ==============================================================================
>>
>> --- llvm/trunk/lib/Target/X86/X86ISelLowering.h (original)
>> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.h Wed Dec 19 05:30:36 2012
>> @@ -716,7 +716,7 @@
>>
>>     protected:
>>       std::pair<const TargetRegisterClass*, uint8_t>
>> -    findRepresentativeClass(EVT VT) const;
>> +    findRepresentativeClass(MVT VT) const;
>>
>>     private:
>>       /// Subtarget - Keep a pointer to the X86Subtarget around so
>> that we can
>>
>
>
>
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