Evan Cheng
cb70b9e80b
Minor optimization. sign-ext/anyext of undef is still undef.
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llvm-svn: 127598
2011-03-14 18:15:55 +00:00
Evan Cheng
bc4588c439
Re-commit 117518 and 117519 now that ARM MC test failures are out of the way.
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llvm-svn: 117531
2010-10-28 06:47:08 +00:00
Evan Cheng
fdc80a0316
Revert 117518 and 117519 for now. They changed scheduling and cause MC tests to fail. Ugh.
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llvm-svn: 117520
2010-10-28 02:00:25 +00:00
Evan Cheng
5c358e02ea
- Assign load / store with shifter op address modes the right itinerary classes.
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- 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".
llvm-svn: 117519
2010-10-28 01:49:06 +00:00
Evan Cheng
44d2802e1d
Shifter ops are not always free. Do not fold them (especially to form
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complex load / store addressing mode) when they have higher cost and
when they have more than one use.
llvm-svn: 117509
2010-10-27 23:41:30 +00:00
Dan Gohman
142428ce64
Eliminate more uses of llvm-as and llvm-dis.
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llvm-svn: 81293
2009-09-09 00:09:15 +00:00
Tanya Lattner
03755061ae
Remove llvm-upgrade.
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llvm-svn: 47238
2008-02-17 20:02:20 +00:00
Reid Spencer
b6fe525070
For PR1319: Upgrade to use new test harness
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llvm-svn: 36076
2007-04-15 19:11:47 +00:00
Evan Cheng
f9a8f61e1b
Fix test case.
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llvm-svn: 34710
2007-02-28 00:36:33 +00:00
Evan Cheng
1897bbd2cf
ARM test cases contributed by Apple.
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llvm-svn: 33354
2007-01-19 09:20:23 +00:00
