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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-07-11 03:43:47 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-07-11 03:43:47 +0000 |
| commit | b5a12dd12fa3cd1026e9058a53089c29fb97f2fd (patch) | |
| tree | a309f392d7a4c1a8635d31150489e47a55d4ee74 /test/Transforms/InstCombine/getelementptr.ll | |
| parent | f75ae4c977b8877bb8988109dc081d512874fb37 (diff) | |
| download | external_llvm-b5a12dd12fa3cd1026e9058a53089c29fb97f2fd.zip external_llvm-b5a12dd12fa3cd1026e9058a53089c29fb97f2fd.tar.gz external_llvm-b5a12dd12fa3cd1026e9058a53089c29fb97f2fd.tar.bz2 | |
Don't duplicate the work done by a gep into a "bitcast" if the gep has
more than one use.
Fixes PR10322.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134883 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/getelementptr.ll')
| -rw-r--r-- | test/Transforms/InstCombine/getelementptr.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/getelementptr.ll b/test/Transforms/InstCombine/getelementptr.ll index aa2eba1..26c0e47 100644 --- a/test/Transforms/InstCombine/getelementptr.ll +++ b/test/Transforms/InstCombine/getelementptr.ll @@ -456,3 +456,19 @@ define i32* @test38(i32* %I, i32 %n) { ; CHECK: = sext i32 %n to i64 ; CHECK: %A = getelementptr i32* %I, i64 % } + +; Test that we don't duplicate work when the second gep is a "bitcast". +%pr10322_t = type { i8* } +declare void @pr10322_f2(%pr10322_t*) +declare void @pr10322_f3(i8**) +define void @pr10322_f1(%pr10322_t* %foo) { +entry: + %arrayidx8 = getelementptr inbounds %pr10322_t* %foo, i64 2 + call void @pr10322_f2(%pr10322_t* %arrayidx8) nounwind + %tmp2 = getelementptr inbounds %pr10322_t* %arrayidx8, i64 0, i32 0 + call void @pr10322_f3(i8** %tmp2) nounwind + ret void + +; CHECK: @pr10322_f1 +; CHECK: %tmp2 = getelementptr inbounds %pr10322_t* %arrayidx8, i64 0, i32 0 +} |