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| author | Anton Bikineev <ant.bikineev@gmail.com> | 2018-01-23 09:27:47 +0000 |
|---|---|---|
| committer | Anton Bikineev <ant.bikineev@gmail.com> | 2018-01-23 09:27:47 +0000 |
| commit | 82f61151b377f59d667e9943d480c429c4d3e176 (patch) | |
| tree | 5476d7557d269e8f50b9431f9739381537a80a00 /llvm/test/Transforms | |
| parent | acc48f3e1dbd2742d2f61958ca484496e1210c62 (diff) | |
| download | bcm5719-llvm-82f61151b377f59d667e9943d480c429c4d3e176.tar.gz bcm5719-llvm-82f61151b377f59d667e9943d480c429c4d3e176.zip | |
[InstSimplify] (X << Y) % X -> 0
llvm-svn: 323182
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/rem.ll | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/llvm/test/Transforms/InstSimplify/rem.ll b/llvm/test/Transforms/InstSimplify/rem.ll index d949d6ea353..a015d4c43e0 100644 --- a/llvm/test/Transforms/InstSimplify/rem.ll +++ b/llvm/test/Transforms/InstSimplify/rem.ll @@ -189,9 +189,7 @@ define i32 @rem4() { define i32 @rem5(i32 %x, i32 %y) { ; CHECK-LABEL: @rem5( -; CHECK-NEXT: [[SHL:%.*]] = shl nsw i32 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[MOD:%.*]] = srem i32 [[SHL]], [[X]] -; CHECK-NEXT: ret i32 [[MOD]] +; CHECK-NEXT: ret i32 0 ; %shl = shl nsw i32 %x, %y %mod = srem i32 %shl, %x @@ -200,9 +198,7 @@ define i32 @rem5(i32 %x, i32 %y) { define <2 x i32> @rem6(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @rem6( -; CHECK-NEXT: [[SHL:%.*]] = shl nsw <2 x i32> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[MOD:%.*]] = srem <2 x i32> [[SHL]], [[X]] -; CHECK-NEXT: ret <2 x i32> [[MOD]] +; CHECK-NEXT: ret <2 x i32> zeroinitializer ; %shl = shl nsw <2 x i32> %x, %y %mod = srem <2 x i32> %shl, %x @@ -224,9 +220,7 @@ define i32 @rem7(i32 %x, i32 %y) { define i32 @rem8(i32 %x, i32 %y) { ; CHECK-LABEL: @rem8( -; CHECK-NEXT: [[SHL:%.*]] = shl nuw i32 [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[MOD:%.*]] = urem i32 [[SHL]], [[X]] -; CHECK-NEXT: ret i32 [[MOD]] +; CHECK-NEXT: ret i32 0 ; %shl = shl nuw i32 %x, %y %mod = urem i32 %shl, %x @@ -235,9 +229,7 @@ define i32 @rem8(i32 %x, i32 %y) { define <2 x i32> @rem9(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @rem9( -; CHECK-NEXT: [[SHL:%.*]] = shl nuw <2 x i32> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: [[MOD:%.*]] = urem <2 x i32> [[SHL]], [[X]] -; CHECK-NEXT: ret <2 x i32> [[MOD]] +; CHECK-NEXT: ret <2 x i32> zeroinitializer ; %shl = shl nuw <2 x i32> %x, %y %mod = urem <2 x i32> %shl, %x |
