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10839866a1
This patch implements initial backend support for a -mtune CPU controlled by a "tune-cpu" function attribute. If the attribute is not present X86 will use the resolved CPU from target-cpu attribute or command line. This patch adds MC layer support a tune CPU. Each CPU now has two sets of features stored in their GenSubtargetInfo.inc tables . These features lists are passed separately to the Processor and ProcessorModel classes in tablegen. The tune list defaults to an empty list to avoid changes to non-X86. This annoyingly increases the size of static tables on all target as we now store 24 more bytes per CPU. I haven't quantified the overall impact, but I can if we're concerned. One new test is added to X86 to show a few tuning features with mismatched tune-cpu and target-cpu/target-feature attributes to demonstrate independent control. Another new test is added to demonstrate that the scheduler model follows the tune CPU. I have not added a -mtune to llc/opt or MC layer command line yet. With no attributes we'll just use the -mcpu for both. MC layer tools will always follow the normal CPU for tuning. Differential Revision: https://reviews.llvm.org/D85165 |
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.. | ||
MCTargetDesc | ||
TargetInfo | ||
cl_common_defines.h | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
ManagedStringPool.h | ||
NVPTX.h | ||
NVPTX.td | ||
NVPTXAllocaHoisting.cpp | ||
NVPTXAllocaHoisting.h | ||
NVPTXAsmPrinter.cpp | ||
NVPTXAsmPrinter.h | ||
NVPTXAssignValidGlobalNames.cpp | ||
NVPTXFrameLowering.cpp | ||
NVPTXFrameLowering.h | ||
NVPTXGenericToNVVM.cpp | ||
NVPTXImageOptimizer.cpp | ||
NVPTXInstrFormats.td | ||
NVPTXInstrInfo.cpp | ||
NVPTXInstrInfo.h | ||
NVPTXInstrInfo.td | ||
NVPTXIntrinsics.td | ||
NVPTXISelDAGToDAG.cpp | ||
NVPTXISelDAGToDAG.h | ||
NVPTXISelLowering.cpp | ||
NVPTXISelLowering.h | ||
NVPTXLowerAggrCopies.cpp | ||
NVPTXLowerAggrCopies.h | ||
NVPTXLowerAlloca.cpp | ||
NVPTXLowerArgs.cpp | ||
NVPTXMachineFunctionInfo.h | ||
NVPTXMCExpr.cpp | ||
NVPTXMCExpr.h | ||
NVPTXPeephole.cpp | ||
NVPTXPrologEpilogPass.cpp | ||
NVPTXProxyRegErasure.cpp | ||
NVPTXRegisterInfo.cpp | ||
NVPTXRegisterInfo.h | ||
NVPTXRegisterInfo.td | ||
NVPTXReplaceImageHandles.cpp | ||
NVPTXSubtarget.cpp | ||
NVPTXSubtarget.h | ||
NVPTXTargetMachine.cpp | ||
NVPTXTargetMachine.h | ||
NVPTXTargetObjectFile.h | ||
NVPTXTargetTransformInfo.cpp | ||
NVPTXTargetTransformInfo.h | ||
NVPTXUtilities.cpp | ||
NVPTXUtilities.h | ||
NVVMIntrRange.cpp | ||
NVVMReflect.cpp |