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b48c8c49d5
llvm/lib/Target/R600
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Tom Stellard b48c8c49d5 R600/SI: Adjsut SGPR live ranges before register allocation 
SGPRs are written by instructions that sometimes will ignore control flow,
which means if you have code like:

if (VGPR0) {
  SGPR0 = S_MOV_B32 0
} else {
  SGPR0 = S_MOV_B32 1
}

The value of SGPR0 will 1 no matter what the condition is.

In order to deal with this situation correctly, we need to view the
program as if it were a single basic block when we calculate the
live ranges for the SGPRs.  They way we actually update the live
range is by iterating over all of the segments in each LiveRange
object and setting the end of each segment equal to the start of
the next segment.  So a live range like:

[3888r,9312r:0)[10032B,10384B:0)  0@3888r

will become:

[3888r,10032B:0)[10032B,10384B:0)  0@3888r

This change will allow us to use SALU instructions within branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212215 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-02 20:53:48 +00:00
..
InstPrinter Fix missing words in sentence 2014-06-23 18:00:26 +00:00
MCTargetDesc Convert some assert(0) to llvm_unreachable or fold an 'if' condition into the assert. 2014-06-19 06:10:58 +00:00
TargetInfo Prune redundant dependencies in LLVMBuild.txt. 2013-12-11 00:30:57 +00:00
AMDGPU.h R600/SI: Adjsut SGPR live ranges before register allocation 2014-07-02 20:53:48 +00:00
AMDGPU.td R600: Trivial subtarget feature cleanups. 2014-06-20 06:50:05 +00:00
AMDGPUAsmPrinter.cpp R600/SI: Add FP mode bits to binary. 2014-06-26 17:22:30 +00:00
AMDGPUAsmPrinter.h R600/SI: Add FP mode bits to binary. 2014-06-26 17:22:30 +00:00
AMDGPUCallingConv.td R600/SI: allow 5 more input SGPRs to a shader 2014-05-05 19:30:54 +00:00
AMDGPUFrameLowering.cpp Fix typo 2014-06-14 04:26:07 +00:00
AMDGPUFrameLowering.h De-virtualize or remove some methods that have no overrides nor override anything. In some cases remove all together if there are no callers either. 2014-04-30 05:53:27 +00:00
AMDGPUInstrInfo.cpp R600: Remove AMDIL instruction and register definitions 2014-06-13 16:38:59 +00:00
AMDGPUInstrInfo.h R600: Remove unused declarations leftover from AMDIL 2014-06-30 17:37:17 +00:00
AMDGPUInstrInfo.td R600: Fix inconsistency in rsq instructions. 2014-06-24 22:13:39 +00:00
AMDGPUInstructions.td R600: Fix inconsistency in rsq instructions. 2014-06-24 22:13:39 +00:00
AMDGPUIntrinsicInfo.cpp R600: Rename AMDIL file 2014-06-23 18:00:31 +00:00
AMDGPUIntrinsicInfo.h R600: Rename AMDIL file 2014-06-23 18:00:31 +00:00
AMDGPUIntrinsics.td R600: Fix inconsistency in rsq instructions. 2014-06-24 22:13:39 +00:00
AMDGPUISelDAGToDAG.cpp R600/SI: Use a ComplexPattern for MUBUF stores 2014-06-24 23:33:07 +00:00
AMDGPUISelLowering.cpp R600: Fix crashes when an illegal type load or store is not handled. 2014-07-02 17:44:53 +00:00
AMDGPUISelLowering.h R600: Move mul combine to separate function 2014-06-30 17:55:48 +00:00
AMDGPUMachineFunction.cpp [weak vtables] Remove a bunch of weak vtables 2013-11-19 00:57:56 +00:00
AMDGPUMachineFunction.h [weak vtables] Remove a bunch of weak vtables 2013-11-19 00:57:56 +00:00
AMDGPUMCInstLower.cpp R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
AMDGPUMCInstLower.h Alphabetize forward declarations 2014-06-23 18:00:20 +00:00
AMDGPUPromoteAlloca.cpp R600: Don't crash on unhandled instruction in promote alloca 2014-06-27 16:52:49 +00:00
AMDGPURegisterInfo.cpp R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
AMDGPURegisterInfo.h R600: Remove AMDIL instruction and register definitions 2014-06-13 16:38:59 +00:00
AMDGPURegisterInfo.td Make SubRegIndex size mandatory, following r183020. 2013-05-31 23:45:26 +00:00
AMDGPUSubtarget.cpp R600: Move trivial getters into header, use initializer list 2014-06-27 17:57:00 +00:00
AMDGPUSubtarget.h R600: Move trivial getters into header, use initializer list 2014-06-27 17:57:00 +00:00
AMDGPUTargetMachine.cpp R600/SI: Adjsut SGPR live ranges before register allocation 2014-07-02 20:53:48 +00:00
AMDGPUTargetMachine.h R600: Rename AMDIL file 2014-06-23 18:00:31 +00:00
AMDGPUTargetTransformInfo.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
AMDILCFGStructurizer.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
CaymanInstructions.td R600: Expand mul24 for GPUs without it 2014-05-22 18:00:24 +00:00
CMakeLists.txt R600/SI: Adjsut SGPR live ranges before register allocation 2014-07-02 20:53:48 +00:00
EvergreenInstructions.td R600/SI: Add a pattern for llvm.AMDGPU.barrier.global 2014-06-17 16:53:09 +00:00
LLVMBuild.txt Add proper dependencies to LLVMBuild.txt in llvm/lib. 2013-12-10 05:39:34 +00:00
Makefile
Processors.td R600/SI: Add processor type for Mullins. 2014-05-02 15:41:49 +00:00
R600ClauseMergePass.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600ControlFlowFinalizer.cpp R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
R600Defines.h Fix known typos 2014-01-24 17:20:08 +00:00
R600EmitClauseMarkers.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600ExpandSpecialInstrs.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600InstrFormats.td R600: Use SchedModel enum for is{Trans,Vector}Only functions 2013-09-04 19:53:30 +00:00
R600InstrInfo.cpp R600: Use LDS and vectors for private memory 2014-06-17 16:53:14 +00:00
R600InstrInfo.h R600: Use LDS and vectors for private memory 2014-06-17 16:53:14 +00:00
R600Instructions.td R600: Fix inconsistency in rsq instructions. 2014-06-24 22:13:39 +00:00
R600Intrinsics.td R600: Reenable llvm.R600.load.input/interp.input for compatibility 2013-11-12 16:26:47 +00:00
R600ISelLowering.cpp Add ops() method to SDNode that returns an ArrayRef<SDUse>. Use it to simplify some code. 2014-06-29 00:40:57 +00:00
R600ISelLowering.h R600: Remove AMDILISelLowering 2014-06-23 18:00:55 +00:00
R600MachineFunctionInfo.cpp [weak vtables] Remove a bunch of weak vtables 2013-11-19 00:57:56 +00:00
R600MachineFunctionInfo.h [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600MachineScheduler.cpp R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
R600MachineScheduler.h [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600OptimizeVectorRegisters.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R600Packetizer.cpp R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
R600RegisterInfo.cpp R600: Remove AMDIL instruction and register definitions 2014-06-13 16:38:59 +00:00
R600RegisterInfo.h R600: Remove AMDIL instruction and register definitions 2014-06-13 16:38:59 +00:00
R600RegisterInfo.td R600: Use LDS and vectors for private memory 2014-06-17 16:53:14 +00:00
R600Schedule.td R600: Add local memory support via LDS 2013-06-28 15:47:08 +00:00
R600TextureIntrinsicsReplacer.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00
R700Instructions.td R600: Reorganize tablegen instruction definitions 2014-03-24 16:07:25 +00:00
SIAnnotateControlFlow.cpp R600/SI: SI Control Flow Annotation bug fixed 2014-06-20 17:06:02 +00:00
SIDefines.h R600/SI: Add FP mode bits to binary. 2014-06-26 17:22:30 +00:00
SIFixSGPRCopies.cpp R600/SI: Fix a bug with handling of INSERT_SUBREG in SIFixSGPRCopies 2014-05-15 14:41:55 +00:00
SIFixSGPRLiveRanges.cpp R600/SI: Adjsut SGPR live ranges before register allocation 2014-07-02 20:53:48 +00:00
SIInsertWaits.cpp R600/SI: Add intrinsics for various math instructions. 2014-06-19 01:19:19 +00:00
SIInstrFormats.td R600/SI: Make sure target flags are set on pseudo VOP3 instructions 2014-06-17 19:34:46 +00:00
SIInstrInfo.cpp R600/SI: Add verifier check for immediates in register operands. 2014-07-02 20:53:44 +00:00
SIInstrInfo.h R600: Move AMDGPUInstrInfo from AMDGPUTargetMachine into AMDGPUSubtarget 2014-06-13 01:32:00 +00:00
SIInstrInfo.td R600/SI: Use a ComplexPattern for MUBUF stores 2014-06-24 23:33:07 +00:00
SIInstructions.td R600/SI: Add verifier check for immediates in register operands. 2014-07-02 20:53:44 +00:00
SIIntrinsics.td R600/SI: add gather4 and getlod intrinsics (v3) 2014-06-18 22:00:29 +00:00
SIISelLowering.cpp R600: Promote i64 stores to v2i32 2014-06-24 23:33:04 +00:00
SIISelLowering.h R600/SI: Use v_cvt_f32_ubyte* instructions 2014-06-11 17:50:44 +00:00
SILowerControlFlow.cpp R600/SI: Re-initialize the m0 register after using it for indirect addressing 2014-06-17 16:53:04 +00:00
SILowerI1Copies.cpp R600/SI: Use VALU instructions for i1 ops 2014-05-15 14:41:50 +00:00
SIMachineFunctionInfo.cpp R600/SI: Only create one instruction when spilling/restoring register v3 2014-05-02 15:41:42 +00:00
SIMachineFunctionInfo.h R600/SI: Only create one instruction when spilling/restoring register v3 2014-05-02 15:41:42 +00:00
SIRegisterInfo.cpp R600/SI: Add verifier check for immediates in register operands. 2014-07-02 20:53:44 +00:00
SIRegisterInfo.h R600/SI: Add verifier check for immediates in register operands. 2014-07-02 20:53:44 +00:00
SIRegisterInfo.td R600/SI: add gather4 and getlod intrinsics (v3) 2014-06-18 22:00:29 +00:00
SISchedule.td
SITypeRewriter.cpp [C++11] Add 'override' keywords and remove 'virtual'. Additionally add 'final' and leave 'virtual' on some methods that are marked virtual without overriding anything and have no obvious overrides themselves. R600 edition 2014-04-29 07:57:24 +00:00