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llvm-6502/lib/Target/R600
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Tom Stellard 19a99df130 R600: Fix scheduling of instructions that use the LDS output queue 
The LDS output queue is accessed via the OQAP register.  The OQAP
register cannot be live across clauses, so if value is written to the
output queue, it must be retrieved before the end of the clause.
With the machine scheduler, we cannot statisfy this constraint, because
it lacks proper alias analysis and it will mark some LDS accesses as
having a chain dependency on vertex fetches.  Since vertex fetches
require a new clauses, the dependency may end up spiltting OQAP uses and
defs so the end up in different clauses.  See the lds-output-queue.ll
test for a more detailed explanation.

To work around this issue, we now combine the LDS read and the OQAP
copy into one instruction and expand it after register allocation.

This patch also adds some checks to the EmitClauseMarker pass, so that
it doesn't end a clause with a value still in the output queue and
removes AR.X and OQAP handling from the scheduler (AR.X uses and defs
were already being expanded post-RA, so the scheduler will never see
them).

Reviewed-by: Vincent Lejeune <vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194755 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 00:12:45 +00:00
..
InstPrinter R600/SI: Change formatting of printed registers. 2013-11-12 02:35:51 +00:00
MCTargetDesc Remove AllowQuotesInName and friends from MCAsmInfo. 2013-11-13 14:01:59 +00:00
TargetInfo R600: Remove unnecessary include 2013-06-07 20:28:43 +00:00
AMDGPU.h R600: Simplify handling of private address space 2013-10-22 18:19:10 +00:00
AMDGPU.td R600/SI: Add compute support for CI v2 2013-10-29 16:37:28 +00:00
AMDGPUAsmPrinter.cpp Indentation fixes 2013-11-14 10:08:50 +00:00
AMDGPUAsmPrinter.h Fix missing C++ mode comment 2013-11-10 01:03:59 +00:00
AMDGPUCallingConv.td R600: Use function inputs to represent data stored in gpr 2013-11-11 22:10:24 +00:00
AMDGPUConvertToISA.cpp
AMDGPUFrameLowering.cpp R600: Fix calculation of stack offset in AMDGPUFrameLowering 2013-06-07 20:52:05 +00:00
AMDGPUFrameLowering.h
AMDGPUInstrInfo.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUInstrInfo.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUInstrInfo.td R600: Add support for i8 and i16 local memory stores 2013-08-26 15:05:49 +00:00
AMDGPUInstructions.td R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUIntrinsics.td R600: Add support for GROUP_BARRIER instruction 2013-06-28 15:46:59 +00:00
AMDGPUISelDAGToDAG.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUISelLowering.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUISelLowering.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPUMachineFunction.cpp Move string pointer from being a static class member to just a static global in the one file its needed in. 2013-07-17 00:31:35 +00:00
AMDGPUMachineFunction.h R600: Fix incorrect LDS size calculation 2013-09-05 18:37:57 +00:00
AMDGPUMCInstLower.cpp R600: Store disassembly in a special ELF section when feature +DumpCode is enabled. 2013-10-12 05:02:51 +00:00
AMDGPUMCInstLower.h
AMDGPURegisterInfo.cpp R600/SI: Lower BUILD_VECTOR to REG_SEQUENCE v2 2013-08-14 23:24:32 +00:00
AMDGPURegisterInfo.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
AMDGPURegisterInfo.td Make SubRegIndex size mandatory, following r183020. 2013-05-31 23:45:26 +00:00
AMDGPUSubtarget.cpp R600: Use StructurizeCFGPass for non SI targets 2013-10-10 17:11:12 +00:00
AMDGPUSubtarget.h R600/SI: Add compute support for CI v2 2013-10-29 16:37:28 +00:00
AMDGPUTargetMachine.cpp R600: Fix handling of vector kernel arguments 2013-10-23 00:44:32 +00:00
AMDGPUTargetMachine.h SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch conditions 2013-07-27 00:01:07 +00:00
AMDGPUTargetTransformInfo.cpp SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch conditions 2013-07-27 00:01:07 +00:00
AMDILBase.td R600: Move Subtarget feature definitions into AMDGPU.td 2013-06-07 20:28:49 +00:00
AMDILCFGStructurizer.cpp R600: Remove \ at EOL from ascii art comments. 2013-10-18 14:12:50 +00:00
AMDILInstrInfo.td R600: Enable -verify-machineinstrs in some tests. 2013-10-01 19:32:38 +00:00
AMDILIntrinsicInfo.cpp R600: Rework subtarget info and remove AMDILDevice classes 2013-06-07 20:37:48 +00:00
AMDILIntrinsicInfo.h
AMDILIntrinsics.td
AMDILISelLowering.cpp Make some arrays 'static const' 2013-07-15 06:39:13 +00:00
AMDILRegisterInfo.td
CMakeLists.txt R600: Simplify handling of private address space 2013-10-22 18:19:10 +00:00
LLVMBuild.txt
Makefile
Processors.td R600/SI: Add processor type for Hawaii 2013-11-14 23:46:00 +00:00
R600ClauseMergePass.cpp R600: add a pass that merges clauses. 2013-10-01 19:32:58 +00:00
R600ControlFlowFinalizer.cpp R600: Add IsExport bit to TableGen instruction definitions 2013-08-16 01:11:51 +00:00
R600Defines.h R600: Add support for i8 and i16 local memory stores 2013-08-26 15:05:49 +00:00
R600EmitClauseMarkers.cpp R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600ExpandSpecialInstrs.cpp R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +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: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600InstrInfo.h R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600Instructions.td R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
R600Intrinsics.td R600: Reenable llvm.R600.load.input/interp.input for compatibility 2013-11-12 16:26:47 +00:00
R600ISelLowering.cpp R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600ISelLowering.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
R600MachineFunctionInfo.cpp
R600MachineFunctionInfo.h Move passes from namespace llvm into anonymous namespaces. Sort includes while there. 2013-05-23 17:10:37 +00:00
R600MachineScheduler.cpp R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600MachineScheduler.h R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600OptimizeVectorRegisters.cpp R600: Enable folding of inline literals into REQ_SEQUENCE instructions 2013-08-16 01:11:55 +00:00
R600Packetizer.cpp R600: Simplify handling of private address space 2013-10-22 18:19:10 +00:00
R600RegisterInfo.cpp R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600RegisterInfo.h R600: Fix scheduling of instructions that use the LDS output queue 2013-11-15 00:12:45 +00:00
R600RegisterInfo.td R600: Simplify handling of private address space 2013-10-22 18:19:10 +00:00
R600Schedule.td R600: Add local memory support via LDS 2013-06-28 15:47:08 +00:00
R600TextureIntrinsicsReplacer.cpp R600: Coding style 2013-09-05 23:55:13 +00:00
SIAnnotateControlFlow.cpp Add 'const' qualifiers to static const char* variables. 2013-07-16 01:17:10 +00:00
SIDefines.h R600/SI: Prefer SALU instructions for bit shift operations 2013-11-13 23:36:37 +00:00
SIFixSGPRCopies.cpp R600/SI: Remove redundant legalizeOperands call 2013-11-14 23:44:25 +00:00
SIInsertWaits.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIInstrFormats.td R600/SI: Prefer SALU instructions for bit shift operations 2013-11-13 23:36:37 +00:00
SIInstrInfo.cpp Indentation fixes 2013-11-14 10:08:50 +00:00
SIInstrInfo.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIInstrInfo.td R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIInstructions.td R600/SI: Specify S_ADDK/S_MULK set SCC and are commutable 2013-11-14 22:32:49 +00:00
SIIntrinsics.td R600/SI: expose TBUFFER_STORE_FORMAT_* for OpenGL transform feedback 2013-09-12 02:55:14 +00:00
SIISelLowering.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIISelLowering.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SILowerControlFlow.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIMachineFunctionInfo.cpp
SIMachineFunctionInfo.h
SIRegisterInfo.cpp R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIRegisterInfo.h R600/SI: Add support for private address space load/store 2013-11-13 23:36:50 +00:00
SIRegisterInfo.td R600: Fix handling of vector kernel arguments 2013-10-23 00:44:32 +00:00
SISchedule.td
SITypeRewriter.cpp R600/SI: Replace v1i32 type with i32 in imageload and sample intrinsics 2013-08-14 23:24:53 +00:00