0753c06d9c
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
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The benefits of this change include:
1. Remove DeMorgan-matching code that was added specifically to work-around
the missing transform in http://reviews.llvm.org/rL248634 .
2. Makes the DeMorgan transform work for vectors too.
3. Fix PR28476: https://llvm.org/bugs/show_bug.cgi?id=28476
Extending this transform to other casts and other associative operators may
be useful too. See https://reviews.llvm.org/D22421 for a prerequisite for
doing that though.
Differential Revision: https://reviews.llvm.org/D22271
llvm-svn: 276221
2016-07-21 00:24:18 +00:00
65a51c25c1
[InstCombine] enhance (select X, C1, C2 --> ext X) to handle vectors
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By replacing dyn_cast of ConstantInt with m_Zero/m_One/m_AllOnes, we
allow these transforms for splat vectors.
Differential Revision: http://reviews.llvm.org/D21899
llvm-svn: 274696
2016-07-06 22:23:01 +00:00
348111f4b9
add vector tests to show missing transform
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llvm-svn: 274192
2016-06-30 00:09:13 +00:00
c3701e8b92
regenerate checks
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llvm-svn: 274188
2016-06-29 23:58:39 +00:00
80ecd77303
Convert tests to FileCheck
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llvm-svn: 189529
2013-08-28 23:04:41 +00:00
72a13d2476
Use opt -S instead of piping bitcode output through llvm-dis.
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llvm-svn: 81257
2009-09-08 22:34:10 +00:00
9737a63ed8
Change these tests to feed the assembly files to opt directly, instead
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of using llvm-as, now that opt supports this.
llvm-svn: 81226
2009-09-08 16:50:01 +00:00
91948d4cad
For PR1319:
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Upgrade tests to work with new llvm.exp version of llvm_runtest.
llvm-svn: 36013
2007-04-14 20:13:02 +00:00
44259a29c0
Remove use of implementation keyword.
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llvm-svn: 35412
2007-03-28 02:38:26 +00:00
ea8b07ee6b
Add test case for testing InstCombine with arbitrary precision integer
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types. These tests mimic the integer test cases in the normal InstCombine
test suite but use "strange" integer bit widths.
Most tests written by Zhou Sheng, a few by me.
llvm-svn: 35284
2007-03-23 20:48:34 +00:00
Sanjay Patel