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llvm-mirror/lib/Target/NVPTX
Craig Topper 10839866a1 [X86][MC][Target] Initial backend support a tune CPU to support -mtune
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
2020-08-14 15:31:50 -07:00
..
MCTargetDesc [X86][MC][Target] Initial backend support a tune CPU to support -mtune 2020-08-14 15:31:50 -07:00
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 [NFC] Remove unused GetUnderlyingObject paramenter 2020-07-31 02:10:03 -07:00
NVPTXISelDAGToDAG.h
NVPTXISelLowering.cpp Use llvm::is_contained where appropriate (NFC) 2020-08-01 21:51:06 -07:00
NVPTXISelLowering.h
NVPTXLowerAggrCopies.cpp
NVPTXLowerAggrCopies.h
NVPTXLowerAlloca.cpp
NVPTXLowerArgs.cpp [NFC] Remove unused GetUnderlyingObject paramenter 2020-07-31 02:10:03 -07:00
NVPTXMachineFunctionInfo.h
NVPTXMCExpr.cpp
NVPTXMCExpr.h
NVPTXPeephole.cpp
NVPTXPrologEpilogPass.cpp
NVPTXProxyRegErasure.cpp
NVPTXRegisterInfo.cpp
NVPTXRegisterInfo.h
NVPTXRegisterInfo.td
NVPTXReplaceImageHandles.cpp
NVPTXSubtarget.cpp [X86][MC][Target] Initial backend support a tune CPU to support -mtune 2020-08-14 15:31:50 -07:00
NVPTXSubtarget.h [X86][MC][Target] Initial backend support a tune CPU to support -mtune 2020-08-14 15:31:50 -07:00
NVPTXTargetMachine.cpp
NVPTXTargetMachine.h
NVPTXTargetObjectFile.h
NVPTXTargetTransformInfo.cpp [InstCombine] Move target-specific inst combining 2020-07-22 15:59:49 +02:00
NVPTXTargetTransformInfo.h [InstCombine] Move target-specific inst combining 2020-07-22 15:59:49 +02:00
NVPTXUtilities.cpp
NVPTXUtilities.h
NVVMIntrRange.cpp
NVVMReflect.cpp