[PATCH] D56944: [X86] Fix bug in x86_intrcc with arg copy elision

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.
rnk added reviewers: craig.topper, phil-opp.
Herald added a subscriber: hiraditya.

Use a custom calling convention handler for interrupts instead of fixing
up the locations in LowerMemArgument. This way, the offsets are correct
when constructed and we don't need to account for them in as many
places.

Depends on D56883 <https://reviews.llvm.org/D56883>

Replaces D56275 <https://reviews.llvm.org/D56275>


https://reviews.llvm.org/D56944

Files:
  llvm/lib/Target/X86/X86CallingConv.cpp
  llvm/lib/Target/X86/X86CallingConv.td
  llvm/lib/Target/X86/X86FrameLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/x86-32-intrcc.ll
  llvm/test/CodeGen/X86/x86-64-intrcc.ll
  llvm/test/CodeGen/X86/x86-interrupt_cc.ll

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