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* Re-apply r124518 with fix. Watch out for invalidated iterator.Evan Cheng2011-01-291-3/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124526 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r124518. It broke Linux self-host.Evan Cheng2011-01-291-7/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124522 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-commit r124462 with fixes. Tail recursion elim will now dup ret into ↵Evan Cheng2011-01-291-3/+7
| | | | | | unconditional predecessor to enable TCE on demand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124518 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r124462. There are a few big regressions that I need to fix first.Evan Cheng2011-01-281-7/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124478 91177308-0d34-0410-b5e6-96231b3b80d8
* - Stop simplifycfg from duplicating "ret" instructions into unconditionalEvan Cheng2011-01-281-3/+7
| | | | | | | | | branches. PR8575, rdar://5134905, rdar://8911460. - Allow codegen tail duplication to dup small return blocks after register allocation is done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124462 91177308-0d34-0410-b5e6-96231b3b80d8
* Change tests from "opt %s" to "opt < %s" so that opt doesn't see theDan Gohman2009-09-111-2/+2
| | | | | | | | | 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
* Use opt -S instead of piping bitcode output through llvm-dis.Dan Gohman2009-09-081-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
* Change these tests to feed the assembly files to opt directly, insteadDan Gohman2009-09-081-2/+2
| | | | | | | of using llvm-as, now that opt supports this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
* Dig through multiple levels of AND to thread jumps if needed.Chris Lattner2008-04-221-0/+33
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50106 91177308-0d34-0410-b5e6-96231b3b80d8
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