[PATCH] D21155: [SystemZ] Support Compare and Traps

[Zhan Jun Liau via llvm-commits]

zhanjunl created this revision.
zhanjunl added reviewers: uweigand, koriakin.
zhanjunl added a subscriber: llvm-commits.

Support and generate Compare and Traps like CRT, CIT, etc.

Support Trap as legal DAG opcodes and generate "j .+2" for them by default.
Add support for Conditional Traps and use the If Converter to convert them into the
corresponding compare and trap opcodes.

http://reviews.llvm.org/D21155

Files:
  lib/Target/SystemZ/SystemZAsmPrinter.cpp
  lib/Target/SystemZ/SystemZElimCompare.cpp
  lib/Target/SystemZ/SystemZISelLowering.cpp
  lib/Target/SystemZ/SystemZISelLowering.h
  lib/Target/SystemZ/SystemZInstrFormats.td
  lib/Target/SystemZ/SystemZInstrInfo.cpp
  lib/Target/SystemZ/SystemZInstrInfo.h
  lib/Target/SystemZ/SystemZInstrInfo.td
  test/CodeGen/SystemZ/trap-01.ll

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