llvm/test/Transforms/CodeGenPrepare, branch release_29http://llvm.orghttps://git.amat.us/llvm/atom/test/Transforms/CodeGenPrepare?h=release_292011-01-15T07:51:19Ztemporarily revert r123526. While working on a follow-on patch I2011-01-15T07:51:19ZChris Lattnersabre@nondot.org2011-01-15T07:51:19Zurn:sha1:6ccb5ef1b504e71b63219437f5bcf4856207949b
realize that ConstantFoldTerminator doesn't preserve dominfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123527 91177308-0d34-0410-b5e6-96231b3b80d8
fix rdar://8785296 - -fcatch-undefined-behavior generates inefficient code2011-01-15T07:36:13ZChris Lattnersabre@nondot.org2011-01-15T07:36:13Zurn:sha1:eeba3f5695e39ca970a7aeb161558575216005b2
The basic issue is that isel (very reasonably!) expects conditional branches
to be folded, so CGP leaving around a bunch dead computation feeding
conditional branches isn't such a good idea. Just fold branches on constants
into unconditional branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123526 91177308-0d34-0410-b5e6-96231b3b80d8
Now that instruction optzns can update the iterator as they go, we can 2011-01-15T07:25:29ZChris Lattnersabre@nondot.org2011-01-15T07:25:29Zurn:sha1:94e8e0cfbe13cdbdf7addc6e36df863cab92e4c9
have objectsize folding recursively simplify away their result when it
folds. It is important to catch this here, because otherwise we won't
eliminate the cross-block values at isel and other times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123524 91177308-0d34-0410-b5e6-96231b3b80d8
revert r122164, I'm going to go with a different approach.2010-12-19T04:23:03ZChris Lattnersabre@nondot.org2010-12-19T04:23:03Zurn:sha1:a0d172f7fec17bcbc0b0681b42b8c6192072eea0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122168 91177308-0d34-0410-b5e6-96231b3b80d8
first step to fixing PR8642: don't fold away empty basic blocks2010-12-19T03:02:34ZChris Lattnersabre@nondot.org2010-12-19T03:02:34Zurn:sha1:140f4a315b4b1bb5402a78b37756aa6c212ed390
which have trapping constant exprs in them due to PHI nodes.
Eliminating them can cause the constant expr to be evalutated
on new paths if the input edges are critical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122164 91177308-0d34-0410-b5e6-96231b3b80d8
move this test into the ARM test so that it is only run when the arm backend2010-12-19T02:58:14ZChris Lattnersabre@nondot.org2010-12-19T02:58:14Zurn:sha1:78d0094e4c91cde903b08fac24b76043ab654967
is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122163 91177308-0d34-0410-b5e6-96231b3b80d8
Add a test for CodeGenPrepare's ability to look through PHI nodes when performing2010-11-19T22:34:53ZOwen Andersonresistor@mac.com2010-11-19T22:34:53Zurn:sha1:563d9bdc84d30757cae9f5e44277bf0578074c5d
addressing mode folding, introduced in r119853.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119857 91177308-0d34-0410-b5e6-96231b3b80d8
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the2009-09-11T18:01:28ZDan Gohmangohman@apple.com2009-09-11T18:01:28Zurn:sha1:f2f6ce65b79df6ec4ee427d51a18355a170f199b
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
Change these tests to feed the assembly files to opt directly, instead2009-09-08T16:50:01ZDan Gohmangohman@apple.com2009-09-08T16:50:01Zurn:sha1:b1e1e82c54c060ea5dae09dae043234826ca2539
of using llvm-as, now that opt supports this.
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reenable test2008-11-24T21:27:20ZChris Lattnersabre@nondot.org2008-11-24T21:27:20Zurn:sha1:8d0d603a0b38dd84358f96115efa8e097d4055bd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59986 91177308-0d34-0410-b5e6-96231b3b80d8