a78fa8cc2d
continue making the world safe for ConstantDataVector. At this point,
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we should (theoretically optimize and codegen ConstantDataVector as well
as ConstantVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27 03:08:05 +00:00
230cdab220
some general cleanup, using new methods and tidying up old code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26 00:42:34 +00:00
bec2d03c4d
basic instcombine support for CDS.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148806 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24 14:31:22 +00:00
8d992f5c2c
Minor simplification: use ShuffleVectorInst::getMaskValue instead of a more expensive helper.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142672 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-21 19:11:34 +00:00
d2822e7572
Extend instcombine's shufflevector simplification to handle more cases where the input and output vectors have different sizes. Patch by Xiaoyi Guo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142671 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-21 19:06:29 +00:00
db125cfaf5
land David Blaikie's patch to de-constify Type, with a few tweaks.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 04:54:35 +00:00
0ff8a4fa35
Instcombile optimization: extractelement(cast) -> cast(extractelement)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 22:57:29 +00:00
1347623aaf
PR9218: SimplifyDemandedVectorElts can return a non-null value that is not
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the instruction passed in. Make sure to account for this correctly, instead
of looping infinitely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19 22:42:40 +00:00
7a874ddda0
PR5207: Rename overloaded APInt methods set(), clear(), flip() to
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setAllBits(), setBit(unsigned), etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 08:53:58 +00:00
db1da8ed42
Clean up indentation and other whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 22:20:45 +00:00
09fd64644d
Remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 22:20:43 +00:00
f0b48f836e
Fix 80-column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 22:03:07 +00:00
822cb58d08
Change instcombine's getShuffleMask to represent undef with negative values.
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This code had previously used 2*N, where N is the mask length, to represent
undef. That is not safe because the shufflevector operands may have more
than N elements -- they don't have to match the result type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 22:03:05 +00:00
4cac5facc3
Make instcombine a little more aggressive in combining vector shuffles.
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Allow splats even if they don't match either of the original shuffles,
possibly due to undef entries in the shuffles masks. Radar 8597790.
Also fix some 80-column violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117719 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 22:02:50 +00:00
68c23f8616
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 22:55:27 +00:00
7f1f4089a1
Reapply this transformation now that it is passing the external test which it previously failed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 00:17:53 +00:00
7486278900
Temporarily revert 110737 and 110734, they were causing failures
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in an external testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110905 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12 07:01:22 +00:00
95743d8748
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10 21:38:12 +00:00
1df9859c40
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16 11:11:14 +00:00
8609fda0f7
fix some problems handling large vectors reported in PR6230
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95616 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-08 23:56:03 +00:00
d5da271863
reduce indentation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 05:42:08 +00:00
b8a5cecd6b
split vector stuff out to InstCombineVectorOps.cpp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 05:36:20 +00:00
