51edc7b7e1
Temporarily revert r110987 as it's causing some miscompares in
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vector heavy code. I'll re-enable when we've tracked down the problem.
llvm-svn: 111318
2010-08-17 22:55:27 +00:00
2a0ca3e937
Reapply this transformation now that it is passing the external test which it previously failed.
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llvm-svn: 110987
2010-08-13 00:17:53 +00:00
ac40d49c70
Temporarily revert 110737 and 110734, they were causing failures
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in an external testsuite.
llvm-svn: 110905
2010-08-12 07:01:22 +00:00
265363061e
Add the minimal amount of smarts necessary to instcombine of shufflevectors to recognize
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patterns generated by clang for transpose of a matrix in generic vectors. This is made
of two parts:
1) Propagating vector extracts of hi/lo half into their users
2) Recognizing an insertion of even elements followed by the odd elements as an unpack.
Testcase to come, but this shrinks the # of shuffle instructions generated on x86 from ~40 to the minimal 8.
llvm-svn: 110734
2010-08-10 21:38:12 +00:00
19d0b47b1f
There are two ways of checking for a given type, for example isa<PointerType>(T)
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and T->isPointerTy(). Convert most instances of the first form to the second form.
Requested by Chris.
llvm-svn: 96344
2010-02-16 11:11:14 +00:00
b22423c89a
fix some problems handling large vectors reported in PR6230
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llvm-svn: 95616
2010-02-08 23:56:03 +00:00
841af4f03d
reduce indentation
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llvm-svn: 92684
2010-01-05 05:42:08 +00:00
ec97a90221
split vector stuff out to InstCombineVectorOps.cpp
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llvm-svn: 92683
2010-01-05 05:36:20 +00:00
Eric Christopher