diff options
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/shufflevector.ll | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/llvm/test/Transforms/InstSimplify/shufflevector.ll b/llvm/test/Transforms/InstSimplify/shufflevector.ll index 4a9c0dfb234..4b6580118fc 100644 --- a/llvm/test/Transforms/InstSimplify/shufflevector.ll +++ b/llvm/test/Transforms/InstSimplify/shufflevector.ll @@ -3,13 +3,29 @@ define <4 x i32> @const_folding(<4 x i32> %x) { ; CHECK-LABEL: @const_folding( -; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> zeroinitializer, <4 x i32> <i32 5, i32 4, i32 5, i32 4> -; CHECK-NEXT: ret <4 x i32> [[SHUF]] +; CHECK-NEXT: ret <4 x i32> zeroinitializer ; %shuf = shufflevector <4 x i32> %x, <4 x i32> zeroinitializer, <4 x i32> <i32 5, i32 4, i32 5, i32 4> ret <4 x i32> %shuf } +define <4 x i32> @const_folding1(<4 x i32> %x) { +; CHECK-LABEL: @const_folding1( +; CHECK-NEXT: ret <4 x i32> <i32 5, i32 5, i32 5, i32 5> +; + %shuf = shufflevector <4 x i32> <i32 5, i32 4, i32 5, i32 4>, <4 x i32> %x, <4 x i32> zeroinitializer + ret <4 x i32> %shuf +} + +define <4 x i32> @const_folding_negative(<3 x i32> %x) { +; CHECK-LABEL: @const_folding_negative( +; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <3 x i32> [[X:%.*]], <3 x i32> zeroinitializer, <4 x i32> <i32 2, i32 4, i32 5, i32 4> +; CHECK-NEXT: ret <4 x i32> [[SHUF]] +; + %shuf = shufflevector <3 x i32> %x, <3 x i32> zeroinitializer, <4 x i32> <i32 2, i32 4, i32 5, i32 4> + ret <4 x i32> %shuf +} + define <4 x i32> @splat_operand(<4 x i32> %x) { ; CHECK-LABEL: @splat_operand( ; CHECK-NEXT: [[SPLAT:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> undef, <4 x i32> zeroinitializer @@ -23,8 +39,7 @@ define <4 x i32> @splat_operand(<4 x i32> %x) { define <4 x i32> @undef_mask(<4 x i32> %x) { ; CHECK-LABEL: @undef_mask( -; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x i32> [[X:%.*]], <4 x i32> undef, <4 x i32> undef -; CHECK-NEXT: ret <4 x i32> [[SHUF]] +; CHECK-NEXT: ret <4 x i32> undef ; %shuf = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> undef ret <4 x i32> %shuf @@ -59,8 +74,7 @@ define <4 x i32> @pseudo_identity_mask(<4 x i32> %x) { define <4 x i32> @const_operand(<4 x i32> %x) { ; CHECK-LABEL: @const_operand( -; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x i32> <i32 42, i32 43, i32 44, i32 45>, <4 x i32> [[X:%.*]], <4 x i32> <i32 0, i32 3, i32 2, i32 1> -; CHECK-NEXT: ret <4 x i32> [[SHUF]] +; CHECK-NEXT: ret <4 x i32> <i32 42, i32 45, i32 44, i32 43> ; %shuf = shufflevector <4 x i32> <i32 42, i32 43, i32 44, i32 45>, <4 x i32> %x, <4 x i32> <i32 0, i32 3, i32 2, i32 1> ret <4 x i32> %shuf |
