9f36a2d54b
add tests for missing vector icmp folds
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llvm-svn: 278132
2016-08-09 16:39:05 +00:00
f36a29199f
update to use FileCheck and auto-generate checks
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llvm-svn: 278131
2016-08-09 16:19:57 +00:00
1880092722
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
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input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.
llvm-svn: 81537
2009-09-11 18:01:28 +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
f23908151a
Reinstate this optimization to fold icmp of xor when possible. Don't try to
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turn icmp eq a+x, b+x into icmp eq a, b if a+x or b+x has other uses. This
may have been increasing register pressure leading to the bzip2 slowdown.
llvm-svn: 63487
2009-01-31 21:30:05 +00:00
99f4558117
Revert r54876 r54877 r54906 and r54907. Evan found that these caused a 20%
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slowdown in bzip2.
llvm-svn: 55113
2008-08-21 05:56:10 +00:00
53b44029d6
Consider the case where xor by -1 and xor by 128 have been combined already to
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produce an xor by 127.
llvm-svn: 54906
2008-08-17 19:58:24 +00:00
18f50b2637
Xor'ing both sides of icmp by sign-bit is equivalent to swapping signedness of
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the predicate.
Also, make this optz'n apply in more cases where it's safe to do so.
llvm-svn: 54876
2008-08-17 07:34:14 +00:00
Sanjay Patel