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-rw-r--r--llvm/test/Transforms/Reassociate/mulfactor2.ll13
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Reassociate/mulfactor2.ll b/llvm/test/Transforms/Reassociate/mulfactor2.ll
new file mode 100644
index 00000000000..062e3af4f50
--- /dev/null
+++ b/llvm/test/Transforms/Reassociate/mulfactor2.ll
@@ -0,0 +1,13 @@
+; This should turn into one multiply and one add.
+
+; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -reassociate -instcombine | llvm-dis | grep mul | wc -l | grep 1 &&
+; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -reassociate -instcombine | llvm-dis | grep add | wc -l | grep 1
+int %main(int %t) {
+ %tmp.3 = mul int %t, 12 ; <int> [#uses=1]
+ %tmp.4 = add int %tmp.3, 5 ; <int> [#uses=1]
+ %tmp.6 = mul int %t, 6 ; <int> [#uses=1]
+ %tmp.8 = mul int %tmp.4, 3 ; <int> [#uses=1]
+ %tmp.9 = add int %tmp.8, %tmp.6 ; <int> [#uses=1]
+ ret int %tmp.9
+}
+
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