[PATCH] D45146: [x86] Introduce a pass to begin more systematically fixing PR36028 and similar issues.

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc updated this revision to Diff 141589.
chandlerc marked 6 inline comments as done.
chandlerc added a comment.

Rebase and updates. I think this is probably ready to go in now?

I'm sending my execution tests in a separate patch to the test suite, but
hopefully they don't block this. Even with testing designed to maximize
carrying, I still have never managed to produce a real-world test that would
fail. The synthetic tests at least cover the correct CF/OF behavior.


Repository:
  rL LLVM

https://reviews.llvm.org/D45146

Files:
  llvm/include/llvm/CodeGen/MachineBasicBlock.h
  llvm/lib/CodeGen/MachineBasicBlock.cpp
  llvm/lib/Target/X86/CMakeLists.txt
  llvm/lib/Target/X86/X86.h
  llvm/lib/Target/X86/X86FlagsCopyLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/lib/Target/X86/X86InstrInfo.cpp
  llvm/lib/Target/X86/X86TargetMachine.cpp
  llvm/test/CodeGen/X86/GlobalISel/add-scalar.ll
  llvm/test/CodeGen/X86/O0-pipeline.ll
  llvm/test/CodeGen/X86/O3-pipeline.ll
  llvm/test/CodeGen/X86/clobber-fi0.ll
  llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll
  llvm/test/CodeGen/X86/copy-eflags.ll
  llvm/test/CodeGen/X86/eflags-copy-expansion.mir
  llvm/test/CodeGen/X86/flags-copy-lowering.mir
  llvm/test/CodeGen/X86/mul-i1024.ll
  llvm/test/CodeGen/X86/peephole-na-phys-copy-folding.ll
  llvm/test/CodeGen/X86/win64_frame.ll
  llvm/test/CodeGen/X86/x86-repmov-copy-eflags.ll