diff options
Diffstat (limited to 'llvm/test/Transforms/EarlyCSE/basic.ll')
| -rw-r--r-- | llvm/test/Transforms/EarlyCSE/basic.ll | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/llvm/test/Transforms/EarlyCSE/basic.ll b/llvm/test/Transforms/EarlyCSE/basic.ll index d42f503fc64..6cfd0a9df98 100644 --- a/llvm/test/Transforms/EarlyCSE/basic.ll +++ b/llvm/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 } |
