Commit Graph

10 Commits

Author SHA1 Message Date
Evan Cheng
5ae1da96f2 Minor optimization. sign-ext/anyext of undef is still undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127598 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 18:15:55 +00:00
Evan Cheng
7e2fe9150f Re-commit 117518 and 117519 now that ARM MC test failures are out of the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117531 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28 06:47:08 +00:00
Evan Cheng
9e08ee5d16 Revert 117518 and 117519 for now. They changed scheduling and cause MC tests to fail. Ugh.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117520 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28 02:00:25 +00:00
Evan Cheng
0104d9de04 - Assign load / store with shifter op address modes the right itinerary classes.
- For now, loads of [r, r] addressing mode is the same as the
  [r, r lsl/lsr/asr #] variants. ARMBaseInstrInfo::getOperandLatency() should
  identify the former case and reduce the output latency by 1.
- Also identify [r, r << 2] case. This special form of shifter addressing mode
  is "free".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117519 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28 01:49:06 +00:00
Evan Cheng
f40deed62f Shifter ops are not always free. Do not fold them (especially to form
complex load / store addressing mode) when they have higher cost and
when they have more than one use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27 23:41:30 +00:00
Dan Gohman
fce288fc91 Eliminate more uses of llvm-as and llvm-dis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 00:09:15 +00:00
Tanya Lattner
6263f94674 Remove llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47238 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:02:20 +00:00
Reid Spencer
1c0c94d6df For PR1319: Upgrade to use new test harness
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36076 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 19:11:47 +00:00
Evan Cheng
63f8a21545 Fix test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34710 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 00:36:33 +00:00
Evan Cheng
02b985c50f ARM test cases contributed by Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33354 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-19 09:20:23 +00:00