Commit Graph

4 Commits

Author SHA1 Message Date
bmeurer
dcf193f18c [turbofan] Strength reduction for inline comparisons.
Perform strength reduction on machine operators with inline comparisons:

  CMP & 1 => CMP
  1 & CMP => CMP
  CMP << 31 >> 31 => CMP

Also strength reduce the following constructs:

  x + (0 - y) => x - y
  (0 - y) + x => x - y

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/951903003

Cr-Commit-Position: refs/heads/master@{#26817}
2015-02-24 12:26:29 +00:00
Ben L. Titzer
396381f944 [turbofan] Rename IrOpcode predicate IsLeafOpcode to IsConstantOpcode.
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/863513002

Cr-Commit-Position: refs/heads/master@{#26141}
2015-01-19 15:35:16 +00:00
bmeurer
dd6ce12645 [turbofan] Turn IrOpcode::IsXXX() into range checks.
TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/807573004

Cr-Commit-Position: refs/heads/master@{#26079}
2015-01-15 15:07:39 +00:00
bmeurer
b6c7e11c10 [turbofan] Fix typo in IrOpcode::Mnemonic.
TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/843043002

Cr-Commit-Position: refs/heads/master@{#26014}
2015-01-09 14:20:03 +00:00