[PATCH] D14878: findDeadCallerSavedReg needs to pay attention to calling convention

[Andy Ayers via llvm-commits]

AndyAyers created this revision.
AndyAyers added a reviewer: majnemer.
AndyAyers added a subscriber: llvm-commits.
AndyAyers set the repository for this revision to rL LLVM.

Caller saved regs differ between SysV and Win64. Use the tail call available set to scavenge from.

 Added a new test case for windows. Fixed up a number of X64 tests since now RCX is preferred over RDX on SysV.

Repository:
  rL LLVM

http://reviews.llvm.org/D14878

Files:
  lib/Target/X86/X86FrameLowering.cpp
  test/CodeGen/X86/emutls-pie.ll
  test/CodeGen/X86/emutls.ll
  test/CodeGen/X86/half.ll
  test/CodeGen/X86/statepoint-allocas.ll
  test/CodeGen/X86/statepoint-call-lowering.ll
  test/CodeGen/X86/statepoint-gctransition-call-lowering.ll
  test/CodeGen/X86/vector-sext.ll
  test/CodeGen/X86/win64_sibcall.ll

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