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llvm-6502/lib/Target/Mips
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Daniel Sanders 58b6bfeb22 [mips][fp64] Add an implicit def to MTHC1 claiming that it reads the lower 32-bits of 64-bit FPR 
Summary:
This is a white lie to workaround a widespread bug in the -mfp64
implementation.

The problem is that none of the 32-bit fpu ops mention the fact that they
clobber the upper 32-bits of the 64-bit FPR. This allows MTHC1 to be
scheduled on the wrong side of most 32-bit FPU ops, particularly MTC1.
Fixing that requires a major overhaul of the FPU implementation which can't
be done right now due to time constraints.

The testcase is SingleSource/Benchmarks/Misc/oourafft.c when given
TARGET_CFLAGS='-mips32r2 mfp64 -mmsa'.

Also correct the comment added in r203464 to indicate that two
instructions were affected.

Reviewers: matheusalmeida, jacksprat

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3029

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203659 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-12 13:35:43 +00:00
..
AsmParser
[mips] Assembly parser must invoke the target streamer to handle .set reorder macro.
2014-03-10 13:21:10 +00:00
Disassembler
Cleaning up a bunch of pre-Visual C++ 2012 build hacks.
2014-03-04 09:23:33 +00:00
InstPrinter
[cleanup] Re-sort all the includes with utils/sort_includes.py.
2014-03-04 10:07:28 +00:00
MCTargetDesc
[mips] Implement NaCl sandboxing of function calls:
2014-03-11 21:23:40 +00:00
TargetInfo
Prune redundant dependencies in LLVMBuild.txt.
2013-12-11 00:30:57 +00:00
CMakeLists.txt
This patch has two main functions:
2014-02-14 19:16:39 +00:00
LLVMBuild.txt
Add proper dependencies to LLVMBuild.txt in llvm/lib.
2013-12-10 05:39:34 +00:00
Makefile
…
MicroMipsInstrFormats.td
Fixed encoding of SYSCALL microMIPS instruction.
2014-02-28 18:17:08 +00:00
MicroMipsInstrFPU.td
[mips][sched] Split IIFmoveC1 into II_M[FT]C1, II_M[FT]HC1, II_DM[FT]C1
2014-01-21 15:03:52 +00:00
MicroMipsInstrInfo.td
Fixed operand of SC microMIPS instruction.
2014-02-28 18:22:56 +00:00
Mips16FrameLowering.cpp
Replace PROLOG_LABEL with a new CFI_INSTRUCTION.
2014-03-07 06:08:31 +00:00
Mips16FrameLowering.h
[mips] Align the stack to 16-bytes for mfp64.
2013-10-29 19:29:03 +00:00
Mips16HardFloat.cpp
This patch has two main functions:
2014-02-14 19:16:39 +00:00
Mips16HardFloat.h
…
Mips16HardFloatInfo.cpp
[cleanup] Re-sort all the includes with utils/sort_includes.py.
2014-03-04 10:07:28 +00:00
Mips16HardFloatInfo.h
This patch has two main functions:
2014-02-14 19:16:39 +00:00
Mips16InstrFormats.td
Create a pattern for the "trap" instruction.
2013-08-07 04:00:26 +00:00
Mips16InstrInfo.cpp
[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.
2014-03-02 12:27:27 +00:00
Mips16InstrInfo.h
Delete dead code.
2013-12-06 00:13:50 +00:00
Mips16InstrInfo.td
[mips][sched] Split IIStore into II_S[BHWD], II_S[WD][LR], and II_SAVE
2014-01-23 10:31:31 +00:00
Mips16ISelDAGToDAG.cpp
[Modules] Move CFG.h to the IR library as it defines graph traits over
2014-03-04 11:45:46 +00:00
Mips16ISelDAGToDAG.h
…
Mips16ISelLowering.cpp
[cleanup] Re-sort all the includes with utils/sort_includes.py.
2014-03-04 10:07:28 +00:00
Mips16ISelLowering.h
Add address space argument to allowsUnalignedMemoryAccess.
2014-02-05 23:15:53 +00:00
Mips16RegisterInfo.cpp
Replace '#include ValueTypes.h' with forward declarations.
2014-03-12 08:00:24 +00:00
Mips16RegisterInfo.h
…
Mips64InstrInfo.td
[mips][sched] Split IIStore into II_S[BHWD], II_S[WD][LR], and II_SAVE
2014-01-23 10:31:31 +00:00
Mips.h
[mips] Revert test commit r195922.
2013-11-28 15:26:33 +00:00
Mips.td
[mips] Make it impossible to have UnknownABI in CodeGen and Integrated Assembler.
2014-02-20 14:58:19 +00:00
MipsAnalyzeImmediate.cpp
…
MipsAnalyzeImmediate.h
Even more spelling fixes for "instruction".
2013-09-28 13:42:22 +00:00
MipsAsmPrinter.cpp
[mips] Implement NaCl sandboxing of indirect jumps:
2014-02-28 10:00:38 +00:00
MipsAsmPrinter.h
Switch all uses of LLVM_OVERRIDE to just use 'override' directly.
2014-03-02 09:09:27 +00:00
MipsCallingConv.td
[mips] Forbid the use of registers t6, t7 and t8 if the target is NaCl.
2014-02-07 17:16:40 +00:00
MipsCodeEmitter.cpp
Re-sort all of the includes with ./utils/sort_includes.py so that
2014-01-07 11:48:04 +00:00
MipsCondMov.td
[mips][sched] Split IIFmove into II_C[FT]C1, II_MOV[FNTZ]_[SD], II_MOV_[SD]
2014-01-21 11:28:03 +00:00
MipsConstantIslandPass.cpp
[Modules] Move InstIterator out of the Support library, where it had no
2014-03-04 10:30:26 +00:00
MipsDelaySlotFiller.cpp
[mips] Implement NaCl sandboxing of loads, stores and SP changes:
2014-03-10 20:34:23 +00:00
MipsDSPInstrFormats.td
…
MipsDSPInstrInfo.td
[mips] Define a pseudo instruction which writes to both the lower and higher
2013-10-15 01:48:30 +00:00
MipsFrameLowering.cpp
…
MipsFrameLowering.h
…
MipsInstrFormats.td
Support for microMIPS FPU instructions 2.
2013-12-25 10:09:27 +00:00
MipsInstrFPU.td
[mips] Add NaCl target and forbid indexed loads and stores for it
2014-02-05 17:19:30 +00:00
MipsInstrInfo.cpp
[weak vtables] Remove a bunch of weak vtables
2013-11-19 00:57:56 +00:00
MipsInstrInfo.h
[weak vtables] Remove a bunch of weak vtables
2013-11-19 00:57:56 +00:00
MipsInstrInfo.td
[mips] Prevent %lo relocation being used on MSA loads and stores.
2014-03-03 14:31:21 +00:00
MipsISelDAGToDAG.cpp
[Modules] Move CFG.h to the IR library as it defines graph traits over
2014-03-04 11:45:46 +00:00
MipsISelDAGToDAG.h
[mips] Prevent %lo relocation being used on MSA loads and stores.
2014-03-03 14:31:21 +00:00
MipsISelLowering.cpp
[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.
2014-03-02 12:27:27 +00:00
MipsISelLowering.h
Re-sort all of the includes with ./utils/sort_includes.py so that
2014-01-07 11:48:04 +00:00
MipsJITInfo.cpp
…
MipsJITInfo.h
…
MipsLongBranch.cpp
[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.
2014-03-02 12:27:27 +00:00
MipsMachineFunction.cpp
[mips] Simplify and optimize code.
2013-10-08 18:13:24 +00:00
MipsMachineFunction.h
[Modules] Move ValueMap to the IR library. While this class does not
2014-03-04 11:26:31 +00:00
MipsMCInstLower.cpp
Move the llvm mangler to lib/IR.
2014-01-07 21:19:40 +00:00
MipsMCInstLower.h
The asm printer has a mangler. Use it.
2013-10-29 16:24:21 +00:00
MipsModuleISelDAGToDAG.cpp
…
MipsModuleISelDAGToDAG.h
…
MipsMSAInstrFormats.td
[mips][msa] Add DLSA instruction.
2014-02-10 12:05:17 +00:00
MipsMSAInstrInfo.td
[mips] BSEL's and BINS[RL] operands are reversed compared to the vselect node used in the pattern.
2014-03-12 11:54:00 +00:00
MipsOptimizePICCall.cpp
Re-sort all of the includes with ./utils/sort_includes.py so that
2014-01-07 11:48:04 +00:00
MipsOs16.cpp
Make nomips16 mask not repeat if it ends with a '.'.
2013-09-23 22:36:11 +00:00
MipsOs16.h
…
MipsRegisterInfo.cpp
Replace '#include ValueTypes.h' with forward declarations.
2014-03-12 08:00:24 +00:00
MipsRegisterInfo.h
Remove getEHExceptionRegister and getEHHandlerRegister.
2013-10-07 13:39:22 +00:00
MipsRegisterInfo.td
[mips][msa] Direct Object Emission support for CTCMSA and CFCMSA.
2013-10-21 12:26:50 +00:00
MipsRelocations.h
…
MipsSchedule.td
[mips][sched] Split IIStore into II_S[BHWD], II_S[WD][LR], and II_SAVE
2014-01-23 10:31:31 +00:00
MipsSEFrameLowering.cpp
Replace PROLOG_LABEL with a new CFI_INSTRUCTION.
2014-03-07 06:08:31 +00:00
MipsSEFrameLowering.h
[mips] Align the stack to 16-bytes for mfp64.
2013-10-29 19:29:03 +00:00
MipsSEInstrInfo.cpp
[mips][fp64] Add an implicit def to MTHC1 claiming that it reads the lower 32-bits of 64-bit FPR
2014-03-12 13:35:43 +00:00
MipsSEInstrInfo.h
[mips] Define a pseudo instruction which writes to both the lower and higher
2013-10-15 01:48:30 +00:00
MipsSEISelDAGToDAG.cpp
[Modules] Move CFG.h to the IR library as it defines graph traits over
2014-03-04 11:45:46 +00:00
MipsSEISelDAGToDAG.h
[mips] Prevent %lo relocation being used on MSA loads and stores.
2014-03-03 14:31:21 +00:00
MipsSEISelLowering.cpp
[mips] BSEL's and BINS[RL] operands are reversed compared to the vselect node used in the pattern.
2014-03-12 11:54:00 +00:00
MipsSEISelLowering.h
Switch all uses of LLVM_OVERRIDE to just use 'override' directly.
2014-03-02 09:09:27 +00:00
MipsSelectionDAGInfo.cpp
…
MipsSelectionDAGInfo.h
…
MipsSERegisterInfo.cpp
Replace '#include ValueTypes.h' with forward declarations.
2014-03-12 08:00:24 +00:00
MipsSERegisterInfo.h
…
MipsSubtarget.cpp
[mips] Treat -mcpu=generic the same way as an empty CPU string.
2014-02-26 10:20:15 +00:00
MipsSubtarget.h
[mips] Forbid the use of registers t6, t7 and t8 if the target is NaCl.
2014-02-07 17:16:40 +00:00
MipsTargetMachine.cpp
Fix regression with -O0 for mips .
2014-03-10 16:31:25 +00:00
MipsTargetMachine.h
…
MipsTargetObjectFile.cpp
Pass the Mangler by reference.
2014-02-08 14:53:28 +00:00
MipsTargetObjectFile.h
Switch all uses of LLVM_OVERRIDE to just use 'override' directly.
2014-03-02 09:09:27 +00:00
MipsTargetStreamer.h
This patch implements .set dsp directive and sets appropriate feature bits.This directive is a counterpart of -mattr=dsp command line option with the exception that it does not influence elf header flags. The usage example is gives in test file.
2014-03-05 11:05:09 +00:00
MSA.txt
[mips] BSEL's and BINS[RL] operands are reversed compared to the vselect node used in the pattern.
2014-03-12 11:54:00 +00:00