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author | Dan Gohman <gohman@apple.com> | 2011-05-24 18:24:08 +0000 |
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committer | Dan Gohman <gohman@apple.com> | 2011-05-24 18:24:08 +0000 |
commit | 9adf151b3d46740ac103c4e21fbdec66d6ef1cdf (patch) | |
tree | 6b1fe821d1e94a8bd459a0ee74871917f73b81ba /test/Analysis/BasicAA | |
parent | 6b918b84661687f7b5fc92dabd6d58e258bf39f2 (diff) | |
download | external_llvm-9adf151b3d46740ac103c4e21fbdec66d6ef1cdf.zip external_llvm-9adf151b3d46740ac103c4e21fbdec66d6ef1cdf.tar.gz external_llvm-9adf151b3d46740ac103c4e21fbdec66d6ef1cdf.tar.bz2 |
Make DecomposeGEPExpression check SimplifyInstruction only
after checking for a GEP, so that it matches what GetUnderlyingObject
does. This fixes an obscure bug turned up by bugpoint in the testcase
for PR9931.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131971 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/BasicAA')
-rw-r--r-- | test/Analysis/BasicAA/underlying-value.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/underlying-value.ll b/test/Analysis/BasicAA/underlying-value.ll new file mode 100644 index 0000000..0671c82 --- /dev/null +++ b/test/Analysis/BasicAA/underlying-value.ll @@ -0,0 +1,25 @@ +; RUN: opt -basicaa -licm -S < %s +; PR9931 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" + +define void @func_20() nounwind { +entry: + br label %for.cond + +for.cond: ; preds = %for.cond2, %entry + br i1 undef, label %for.cond2, label %for.end22 + +for.cond2: ; preds = %for.body5, %for.cond + br i1 false, label %for.body5, label %for.cond + +for.body5: ; preds = %for.cond2 + %arrayidx = getelementptr inbounds [2 x i64]* undef, i32 0, i64 0 + %tmp7 = load i64* %arrayidx, align 8 + %arrayidx9 = getelementptr inbounds [2 x i64]* undef, i32 0, i64 undef + %tmp10 = load i64* %arrayidx9, align 8 + br label %for.cond2 + +for.end22: ; preds = %for.cond + ret void +} |