SWDEV-93545 - HSA HLC: target option interface between complib and BE and denorm control refactoring
Global variables and associated options to control target GPU for optimizations and fp32 denorm support are removed.
Instead standard llvm -mcpu=<cpu> is used to pass chip family name and fp32 denorm is turned into a subtarget feature.
Subtarget feature can be set for llc as standard -mattr=+fp32-denormals and corresponding code to pass feature string
to the BE is added to the compiler lib, mimicing what we used to have for AMDIL.
Device name HSAIL metadata will now reflect an actual GPU family passed to the HSAIL BE instead of "generic".
Denorm support can be switched on as a feature bit in the target mapping. It is on starting from VI. However, just
switching this bit for a family will not produce denorm supporting code. The option -cl-denorms-are-zero can be used
to override this and runtime passes it for configs where CL_FP_DENORM is not reported.
Currently CL_FP_DENORM is not reported for any device, however it can be changed with AMD_GPU_FORCE_SINGLE_FP_DENORM
environment variable. If set it will be honored only starting from VI as set in the target mapping.
Implemented isFMAFasterThanFMulAndFAdd to handle use of v_fma_f32 on GFX9 instead of a direct chip family check.
Testing: smoke, precheckin
Reviewed by Evgeny Mankov
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/codegen.cpp#70 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/linker.cpp#146 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/backends/common/opt_level.cpp#30 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/v0_8/libUtils.cpp#18 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/v0_8/libUtils.h#27 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/v0_8/target_mappings.h#42 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/v0_8/target_mappings_hsail.h#32 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/utils/v0_8/target_mappings_hsail64.h#27 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/BRIGAsmPrinter.cpp#155 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/BRIGAsmPrinter.h#69 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAIL.td#11 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILISelDAGToDAG.cpp#71 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILISelLowering.cpp#116 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILISelLowering.h#29 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILInstrInfo.cpp#42 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILInstrInfo.h#18 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILInstructions.td#22 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILKernelManager.cpp#55 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILSubtarget.cpp#14 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILSubtarget.h#15 edit
... //depot/stg/opencl/drivers/opencl/compiler/llvm/lib/Target/HSAIL/HSAILTargetMachine.cpp#57 edit
... //depot/stg/opencl/drivers/opencl/tests/hsa/bin/test_driver.pl#29 edit
... //depot/stg/opencl/drivers/opencl/tests/hsa/tlst/llc_opt.tlst#97 edit
... //depot/stg/opencl/drivers/opencl/tests/hsa/tlst/ocl_features.tlst#58 edit
foreman
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