[PATCH] D18246: X86: Use push-pop for materializing 8-bit immediates for minsize (take 2)

[Hans Wennborg via llvm-commits]

hans created this revision.
hans added reviewers: majnemer, DavidKreitzer.
hans added a subscriber: llvm-commits.

This is the same as http://reviews.llvm.org/D14971, with added conservative logic for avoiding clobbering of the red zone (PR26023).

Please take a look!

http://reviews.llvm.org/D18246

Files:
  lib/Target/X86/X86ISelDAGToDAG.cpp
  lib/Target/X86/X86InstrCompiler.td
  lib/Target/X86/X86InstrInfo.cpp
  lib/Target/X86/X86InstrInfo.h
  lib/Target/X86/X86InstrInfo.td
  test/CodeGen/X86/materialize-one.ll
  test/CodeGen/X86/materialize.ll
  test/CodeGen/X86/powi.ll

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