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| author | Chris Lattner <sabre@nondot.org> | 2007-12-29 00:59:12 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-12-29 00:59:12 +0000 |
| commit | 741c0aea08feab0ebd1932aaa8dd38836b2073ea (patch) | |
| tree | 3a4b2801eec43c18234716a5e3f1572e4c5f83bb /test | |
| parent | 26d5f661d60e5d155508b7d3ef703d66ec4bc158 (diff) | |
| download | external_llvm-741c0aea08feab0ebd1932aaa8dd38836b2073ea.zip external_llvm-741c0aea08feab0ebd1932aaa8dd38836b2073ea.tar.gz external_llvm-741c0aea08feab0ebd1932aaa8dd38836b2073ea.tar.bz2 | |
dead calls to llvm.stacksave can be deleted, even though they
have potential side-effects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45392 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/deadcode.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/deadcode.ll b/test/Transforms/InstCombine/deadcode.ll index 6ff5ae8..43c1793 100644 --- a/test/Transforms/InstCombine/deadcode.ll +++ b/test/Transforms/InstCombine/deadcode.ll @@ -1,4 +1,5 @@ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret i32 %A} +; RUN: llvm-as < %s | opt -die | llvm-dis | not grep call.*llvm.stacksave define i32 @test(i32 %A) { %X = or i1 false, false @@ -12,3 +13,12 @@ C: ; preds = %T, %0 %C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ] ret i32 %C.upgrd.1 } + +define i32* @test2(i32 %width) { + %tmp = call i8* @llvm.stacksave( ) + %tmp14 = alloca i32, i32 %width + ret i32* %tmp14 +} + +declare i8* @llvm.stacksave() + |