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-rw-r--r--test/Transforms/InstCombine/mul-masked-bits.ll10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/mul-masked-bits.ll b/test/Transforms/InstCombine/mul-masked-bits.ll
new file mode 100644
index 000000000000..9b0a5bfe20de
--- /dev/null
+++ b/test/Transforms/InstCombine/mul-masked-bits.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep ashr
+
+define i32 @foo(i32 %x, i32 %y) {
+ %a = and i32 %x, 7
+ %b = and i32 %y, 7
+ %c = mul i32 %a, %b
+ %d = shl i32 %c, 26
+ %e = ashr i32 %d, 26
+ ret i32 %e
+}