tree 558416dbf2c5535d3b677282ca5c2cb7e57f1770
parent 3d44fe8c06eb403ea499e563db886615f0fa2164
author Jim Stichnoth <stichnot@chromium.org> 1414862034 -0700
committer Jim Stichnoth <stichnot@chromium.org> 1414862034 -0700

Subzero: Switch to AT&T asm syntax.  I give up.

The main motivation is that -build-on-read introduces Intel-style asm output like:
  mov al, byte ptr [flags]
and llvm-mc misinterprets the global symbol "flags" as the flags register.  Further workarounds will likely cost more effort than switching over to AT&T syntax.

Most of the lit tests don't need changing, since the asm text is generated by assembling and disassembling the llvm2ice asm output.

There some LEAHACK TODOs that can be fixed, but that would change some of the instructions, so that can be a separate CL.

The Operand emit() routines really ought to be moved entirely into the target-specific source files.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/695993004