[PATCH] D27688: [framelowering] Skip dbg values when getting next/previous instruction.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: mkuper, aprantl, MatzeB.
fhahn added subscribers: llvm-commits, gbedwell.

In mergeSPUpdates, debug values need to be ignored when getting the
previous element, otherwise debug data could have an impact on codegen.

In eliminateCallFramePseudoInstr, debug values after the erased element
could have an impact on codegen and should be skipped.

Closes PR31319 (https://llvm.org/bugs/show_bug.cgi?id=31319)


https://reviews.llvm.org/D27688

Files:
  lib/Target/X86/X86FrameLowering.cpp
  test/CodeGen/X86/frame-lowering-debug-intrinsic-2.ll
  test/CodeGen/X86/frame-lowering-debug-intrinsic.ll

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