[PATCH] D116677: [2/4] [MC][NFC] Add an optional PreviousInst argument to MCInstrAnalysis::evaluateBranch

[Alex Bradbury via Phabricator via llvm-commits]

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evaluateBranch currently takes a single instruction. This works for most
targets, but is insufficient for e.g. auipc+jalr pairs on RISC-V. This
commit adds a new optional argument for the previous instruction,
allowing these targets to implement evaluateBranch for such instruction
pairs.

This patch simply adds the argument, and modifies llvm-objdump to pass
it.

This isn't a pretty solution, so if you have alternate proposals I'd be keen to discuss.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116677

Files:
  llvm/include/llvm/MC/MCInstrAnalysis.h
  llvm/lib/MC/MCInstrAnalysis.cpp
  llvm/lib/Target/AArch64/MCTargetDesc/AArch64MCTargetDesc.cpp
  llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCTargetDesc.cpp
  llvm/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
  llvm/lib/Target/BPF/MCTargetDesc/BPFMCTargetDesc.cpp
  llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
  llvm/lib/Target/Lanai/MCTargetDesc/LanaiMCTargetDesc.cpp
  llvm/lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp
  llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
  llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCTargetDesc.cpp
  llvm/lib/Target/X86/MCTargetDesc/X86ATTInstPrinter.cpp
  llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp
  llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
  llvm/tools/llvm-cfi-verify/lib/FileAnalysis.cpp
  llvm/tools/llvm-cfi-verify/lib/GraphBuilder.cpp
  llvm/tools/llvm-objdump/llvm-objdump.cpp
  llvm/tools/sancov/sancov.cpp

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