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-rw-r--r--test/Transforms/InstCombine/2005-07-07-DeadPHILoop.ll13
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2005-07-07-DeadPHILoop.ll b/test/Transforms/InstCombine/2005-07-07-DeadPHILoop.ll
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index 0000000000..29a1d7f794
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+++ b/test/Transforms/InstCombine/2005-07-07-DeadPHILoop.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output
+
+; This example caused instcombine to spin into an infinite loop.
+
+void %test(int *%P) {
+ ret void
+Dead:
+ %X = phi int [%Y, %Dead]
+ %Y = div int %X, 10
+ store int %Y, int* %P
+ br label %Dead
+}
+