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llvm-mirror/lib/Target/AArch64/CMakeLists.txt
Bradley Smith aa602e5e4d [AArch64] Add workaround for Cortex-A53 erratum (835769)
Some early revisions of the Cortex-A53 have an erratum (835769) whereby it is
possible for a 64-bit multiply-accumulate instruction in AArch64 state to
generate an incorrect result.  The details are quite complex and hard to
determine statically, since branches in the code may exist in some
 circumstances, but all cases end with a memory (load, store, or prefetch)
instruction followed immediately by the multiply-accumulate operation.

The safest work-around for this issue is to make the compiler avoid emitting
multiply-accumulate instructions immediately after memory instructions and the
simplest way to do this is to insert a NOP.

This patch implements such work-around in the backend, enabled via the option
-aarch64-fix-cortex-a53-835769.

The work-around code generation is not enabled by default.

llvm-svn: 219603
2014-10-13 10:12:35 +00:00

56 lines
1.8 KiB
CMake

set(LLVM_TARGET_DEFINITIONS AArch64.td)
tablegen(LLVM AArch64GenRegisterInfo.inc -gen-register-info)
tablegen(LLVM AArch64GenInstrInfo.inc -gen-instr-info)
tablegen(LLVM AArch64GenMCCodeEmitter.inc -gen-emitter)
tablegen(LLVM AArch64GenMCPseudoLowering.inc -gen-pseudo-lowering)
tablegen(LLVM AArch64GenAsmWriter.inc -gen-asm-writer)
tablegen(LLVM AArch64GenAsmWriter1.inc -gen-asm-writer -asmwriternum=1)
tablegen(LLVM AArch64GenAsmMatcher.inc -gen-asm-matcher)
tablegen(LLVM AArch64GenDAGISel.inc -gen-dag-isel)
tablegen(LLVM AArch64GenFastISel.inc -gen-fast-isel)
tablegen(LLVM AArch64GenCallingConv.inc -gen-callingconv)
tablegen(LLVM AArch64GenSubtargetInfo.inc -gen-subtarget)
tablegen(LLVM AArch64GenDisassemblerTables.inc -gen-disassembler)
add_public_tablegen_target(AArch64CommonTableGen)
add_llvm_target(AArch64CodeGen
AArch64A57FPLoadBalancing.cpp
AArch64AddressTypePromotion.cpp
AArch64AdvSIMDScalarPass.cpp
AArch64AsmPrinter.cpp
AArch64BranchRelaxation.cpp
AArch64CleanupLocalDynamicTLSPass.cpp
AArch64CollectLOH.cpp
AArch64ConditionalCompares.cpp
AArch64DeadRegisterDefinitionsPass.cpp
AArch64ExpandPseudoInsts.cpp
AArch64FastISel.cpp
AArch64A53Fix835769.cpp
AArch64FrameLowering.cpp
AArch64ConditionOptimizer.cpp
AArch64ISelDAGToDAG.cpp
AArch64ISelLowering.cpp
AArch64InstrInfo.cpp
AArch64LoadStoreOptimizer.cpp
AArch64MCInstLower.cpp
AArch64PromoteConstant.cpp
AArch64PBQPRegAlloc.cpp
AArch64RegisterInfo.cpp
AArch64SelectionDAGInfo.cpp
AArch64StorePairSuppress.cpp
AArch64Subtarget.cpp
AArch64TargetMachine.cpp
AArch64TargetObjectFile.cpp
AArch64TargetTransformInfo.cpp
)
add_dependencies(LLVMAArch64CodeGen intrinsics_gen)
add_subdirectory(TargetInfo)
add_subdirectory(AsmParser)
add_subdirectory(Disassembler)
add_subdirectory(InstPrinter)
add_subdirectory(MCTargetDesc)
add_subdirectory(Utils)