Evan Cheng
c3f507f98a
Re-apply r124518 with fix. Watch out for invalidated iterator.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124526 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29 04:46:23 +00:00
Evan Cheng
b0a42fdb36
Revert r124518. It broke Linux self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29 02:43:04 +00:00
Evan Cheng
5e6940788f
Re-commit r124462 with fixes. Tail recursion elim will now dup ret into unconditional predecessor to enable TCE on demand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29 01:29:26 +00:00
Evan Cheng
1b5c0cb71d
Revert r124462. There are a few big regressions that I need to fix first.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28 07:12:38 +00:00
Evan Cheng
40f64cb0de
- Stop simplifycfg from duplicating "ret" instructions into unconditional
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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
2011-01-28 02:19:21 +00:00
Chris Lattner
c232a2e559
make these tests a bit less fragile
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13 05:10:30 +00:00
Dan Gohman
e2c6d131d1
Teach SimplifyCFG how to simplify indirectbr instructions.
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- Eliminate redundant successors.
- Convert an indirectbr with one successor into a direct branch.
Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:29:42 +00:00
Chris Lattner
1a0e7081c3
Implement PR5795 by merging duplicated return blocks. This could go further
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by merging all returns in a function into a single one, but simplifycfg
currently likes to duplicate the return (an unfortunate choice!)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91890 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22 06:07:30 +00:00
Chris Lattner
42385b03aa
convert to filecheck
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22 06:04:26 +00:00
Chris Lattner
dac8bde235
if basic blocks are destroyed while there are *just* BlockAddress' hanging
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around, then zap them. This is analogous to dangling constantexprs hanging
off functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85627 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:39:36 +00:00
Chris Lattner
50b957549b
fix a bunch of spurious failures for people whose home directory
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is sabre.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81528 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 17:02:12 +00:00
Dan Gohman
3e054fe9ef
Use opt -S instead of piping bitcode output through llvm-dis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 22:34:10 +00:00
Dan Gohman
b1e1e82c54
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 16:50:01 +00:00
Tanya Lattner
f04d8d1593
Upgrade tests to not use llvm-upgrade.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 03:45:45 +00:00
Reid Spencer
69ccadd753
Use the llvm-upgrade program to upgrade llvm assembly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
Misha Brukman
e78760e179
Renamed as' =>
llvm-as', dis' =>
llvm-dis', link' =>
llvm-link'.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8558 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-16 15:29:54 +00:00
Chris Lattner
d808e45658
Eliminate explicit control flow in tests
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6961 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 23:13:12 +00:00
Chris Lattner
4a4e39d647
Update run line
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2693 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-21 19:33:17 +00:00
Chris Lattner
2077ffab85
Initial testcases for CFG simplify (which is part of DCE for now)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2466 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 02:37:38 +00:00