[PATCH] D23614: [PPC] Generate positive FP zero using xor insn instead of loading from constant area

[Ehsan Amiri via llvm-commits]

amehsan updated this revision to Diff 72089.

https://reviews.llvm.org/D23614

Files:
  lib/Target/PowerPC/PPCISelLowering.cpp
  lib/Target/PowerPC/PPCISelLowering.h
  lib/Target/PowerPC/PPCInstrFormats.td
  lib/Target/PowerPC/PPCInstrInfo.td
  lib/Target/PowerPC/PPCInstrVSX.td
  test/CodeGen/PowerPC/crbits.ll
  test/CodeGen/PowerPC/fast-isel-fcmp-nan.ll
  test/CodeGen/PowerPC/pzero-fp-xored.ll
  test/CodeGen/PowerPC/tail-dup-analyzable-fallthrough.ll

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