1 files changed, 13 insertions, 2 deletions
diff --git a/test/Transforms/EarlyCSE/basic.ll b/test/Transforms/EarlyCSE/basic.ll
index d42f503..6cfd0a9 100644
--- a/test/Transforms/EarlyCSE/basic.ll
+++ b/test/Transforms/EarlyCSE/basic.ll
@@ -6,16 +6,27 @@ define void @test1(i8 %V, i32 *%P) {
   %A = bitcast i64 42 to double  ;; dead
   %B = add i32 4, 19             ;; constant folds
   store i32 %B, i32* %P
-  
   ; CHECK-NEXT: store i32 23, i32* %P
   
   %C = zext i8 %V to i32
   %D = zext i8 %V to i32  ;; CSE
   volatile store i32 %C, i32* %P
   volatile store i32 %D, i32* %P
-  
   ; CHECK-NEXT: %C = zext i8 %V to i32
   ; CHECK-NEXT: volatile store i32 %C
   ; CHECK-NEXT: volatile store i32 %C
+  
+  %E = add i32 %C, %C
+  %F = add i32 %C, %C
+  volatile store i32 %E, i32* %P
+  volatile store i32 %F, i32* %P
+  ; CHECK-NEXT: %E = add i32 %C, %C
+  ; CHECK-NEXT: volatile store i32 %E
+  ; CHECK-NEXT: volatile store i32 %E
+
+  %G = add nuw i32 %C, %C         ;; not a CSE with E
+  volatile store i32 %G, i32* %P
+  ; CHECK-NEXT: %G = add nuw i32 %C, %C
+  ; CHECK-NEXT: volatile store i32 %G
   ret void
 }