Jakob Stoklund Olesen
8e86929e3c
Properly constrain register classes in 2-addr.
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X86 has 2-addr instructions with different constraints on the tied def
and use operands. One is GR32, one is GR32_NOSP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157149 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-20 06:38:32 +00:00
Chandler Carruth
62dfc51152
Prevent a DAGCombine from firing where there are two uses of
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a combined-away node and the result of the combine isn't substantially
smaller than the input, it's just canonicalized. This is the first part
of a significant (7%) performance gain for Snappy's hot decompression
loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147604 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 11:05:55 +00:00
Chandler Carruth
1e141a854e
Cleanup and FileCheck-ize a test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147603 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-05 11:05:47 +00:00
Chris Lattner
2831a19495
fix rdar://8494845 + PR8244 - a miscompile exposed by my patch in r101350
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-01 05:36:09 +00:00
Dan Gohman
4e39e9da0f
Reapply r106634, now that the bug it exposed is fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24 14:30:44 +00:00
Daniel Dunbar
cbe762b5d1
Revert r106263, "Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,"... it was causing both 'file' (with clang) and 176.gcc (with llvm-gcc) to be miscompiled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106634 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-23 17:09:26 +00:00
Dan Gohman
8a7f7426ee
Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,
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which is faster, simpler, and less surprising.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 01:05:21 +00:00
Dan Gohman
36a0947820
Eliminate more uses of llvm-as and llvm-dis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 23:54:48 +00:00
Tanya Lattner
33eefffb2b
Remove llvm-upgrade and update tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21 07:42:26 +00:00
Dan Gohman
28beeeac4d
Convert tests using "| wc -l | grep ..." to use the count script.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 13:36:28 +00:00
Reid Spencer
d3b1f6d3e0
For PR1319: Upgrade to new test harness.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36091 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 22:20:47 +00:00
Reid Spencer
69ccadd753
Use the llvm-upgrade program to upgrade llvm assembly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
Chris Lattner
957e574b30
remove dead args
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22900 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 01:17:18 +00:00
Chris Lattner
bd8b13dec3
new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21819 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 17:09:31 +00:00
