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author | Chris Lattner <sabre@nondot.org> | 2003-12-10 17:57:38 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2003-12-10 17:57:38 +0000 |
commit | 7277826d7e20accb9ac433ee55546a83c1316188 (patch) | |
tree | a0f0095e9a10a5931c0f671b4ca694f8ae895e57 /test | |
parent | 66ea98e85c5f9c03aac139563d7874e93dc345c6 (diff) | |
download | llvm-7277826d7e20accb9ac433ee55546a83c1316188.tar.gz llvm-7277826d7e20accb9ac433ee55546a83c1316188.tar.bz2 llvm-7277826d7e20accb9ac433ee55546a83c1316188.tar.xz |
New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10374 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll b/test/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll new file mode 100644 index 0000000000..87ed4c59ff --- /dev/null +++ b/test/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll @@ -0,0 +1,23 @@ +; The induction variable canonicalization pass shouldn't leave dead +; instructions laying around! +; +; RUN: llvm-as < %s | opt -indvars | llvm-dis | not grep '#uses=0' + +int %mul(int %x, int %y) { +entry: + br label %tailrecurse + +tailrecurse: ; preds = %entry, %endif + %accumulator.tr = phi int [ %x, %entry ], [ %tmp.9, %endif ] ; <int> [#uses=2] + %y.tr = phi int [ %y, %entry ], [ %tmp.8, %endif ] ; <int> [#uses=2] + %tmp.1 = seteq int %y.tr, 0 ; <bool> [#uses=1] + br bool %tmp.1, label %return, label %endif + +endif: ; preds = %tailrecurse + %tmp.8 = add int %y.tr, -1 ; <int> [#uses=1] + %tmp.9 = add int %accumulator.tr, %x ; <int> [#uses=1] + br label %tailrecurse + +return: ; preds = %tailrecurse + ret int %accumulator.tr +} |