1 files changed, 32 insertions, 1 deletions
diff --git a/test/Transforms/InstCombine/mul.ll b/test/Transforms/InstCombine/mul.ll
index 9b5f7a5..53a5643 100644
--- a/test/Transforms/InstCombine/mul.ll
+++ b/test/Transforms/InstCombine/mul.ll
@@ -1,5 +1,5 @@
 ; This test makes sure that mul instructions are properly eliminated.
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep mul
+; RUN: opt < %s -instcombine -S | not grep mul
 
 define i32 @test1(i32 %A) {
         %B = mul i32 %A, 1              ; <i32> [#uses=1]
@@ -83,3 +83,34 @@ define internal void @test13(<4 x float>*) {
 	store <4 x float> %3, <4 x float>* %0, align 1
 	ret void
 }
+
+define <16 x i8> @test14(<16 x i8> %a) {
+        %b = mul <16 x i8> %a, zeroinitializer
+        ret <16 x i8> %b
+}
+
+; rdar://7293527
+define i32 @test15(i32 %A, i32 %B) {
+entry:
+  %shl = shl i32 1, %B
+  %m = mul i32 %shl, %A
+  ret i32 %m
+}
+
+; X * Y (when Y is 0 or 1) --> x & (0-Y)
+define i32 @test16(i32 %b, i1 %c) {
+        %d = zext i1 %c to i32          ; <i32> [#uses=1]
+        ; e = b & (a >> 31)
+        %e = mul i32 %d, %b             ; <i32> [#uses=1]
+        ret i32 %e
+}
+
+; X * Y (when Y is 0 or 1) --> x & (0-Y)
+define i32 @test17(i32 %a, i32 %b) {
+  %a.lobit = lshr i32 %a, 31
+  %e = mul i32 %a.lobit, %b
+  ret i32 %e
+}
+
+
+