Dmitri Gribenko
a6542923b8
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
...
This is done to avoid odd test failures, like the one fixed in r171243.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30 02:33:22 +00:00
Bill Wendling
b846719663
Ignore unreachable blocks when doing memory dependence analysis on non-local
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loads. It's not really profitable and may result in GVN going into an infinite
loop when it hits constructs like this:
%x = gep %some.type %x, ...
Found via an LTO build of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23 18:37:11 +00:00
Chris Lattner
9e7bc05ad7
fix PR9841 by having GVN not process dead loads. This was
...
causing it to get into infinite loops when it would widen a
load (which can necessarily leave around dead loads).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131847 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 07:03:34 +00:00
Chris Lattner
5cc25ce17d
a testcase that doesn't crash GVN but could someday.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95851 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-11 05:08:05 +00:00
Chris Lattner
1a247f32dd
merge crash-2.ll into crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09 17:17:26 +00:00
Chris Lattner
49f5389aae
minimize this a bit more.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90216 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 07:30:01 +00:00
Chris Lattner
156cf873e5
merge 2009-11-29-ReverseMap.ll into crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90212 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 06:22:10 +00:00
Chris Lattner
971fd57f7d
disable value insertion for now, I need to figure out how
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to inform GVN about the newly inserted values. This fixes
PR5631.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 22:50:07 +00:00
