[PATCH] D116238: [mips] Add -mfix4300 flag to enable vr4300 mulmul bugfix pass

[Random via Phabricator via cfe-commits]

Random06457 updated this revision to Diff 396171.
Random06457 added a comment.

Addressed the comments.
I also updated `isFirstMul` to exclude integer multiplications which do not produce the bug. That change made me fix the tests too.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116238/new/

https://reviews.llvm.org/D116238

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  llvm/lib/Target/Mips/CMakeLists.txt
  llvm/lib/Target/Mips/Mips.h
  llvm/lib/Target/Mips/MipsMulMulBugPass.cpp
  llvm/lib/Target/Mips/MipsTargetMachine.cpp
  llvm/test/CodeGen/Mips/vr4300mulmul/mulbranch.ll
  llvm/test/CodeGen/Mips/vr4300mulmul/mulmul.ll

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