diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/signext.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/signext.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/signext.ll b/llvm/test/Transforms/InstCombine/signext.ll index bccadeb396f..66cee2460eb 100644 --- a/llvm/test/Transforms/InstCombine/signext.ll +++ b/llvm/test/Transforms/InstCombine/signext.ll @@ -72,6 +72,19 @@ define i32 @test6(i16 %P) { ret i32 %tmp.5 } +define <2 x i32> @test6_splat_vec(<2 x i12> %P) { +; CHECK-LABEL: @test6_splat_vec( +; CHECK-NEXT: [[Z:%.*]] = zext <2 x i12> %P to <2 x i32> +; CHECK-NEXT: [[SHL:%.*]] = shl nuw <2 x i32> [[Z]], <i32 20, i32 20> +; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[SHL]], <i32 20, i32 20> +; CHECK-NEXT: ret <2 x i32> [[ASHR]] +; + %z = zext <2 x i12> %P to <2 x i32> + %shl = shl <2 x i32> %z, <i32 20, i32 20> + %ashr = ashr <2 x i32> %shl, <i32 20, i32 20> + ret <2 x i32> %ashr +} + define i32 @test7(i32 %x) { ; CHECK-LABEL: @test7( ; CHECK-NEXT: [[SUB:%.*]] = ashr i32 %x, 5 |
