diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/and.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/and.ll b/llvm/test/Transforms/InstCombine/and.ll index da71880b9bd..40f5cf27136 100644 --- a/llvm/test/Transforms/InstCombine/and.ll +++ b/llvm/test/Transforms/InstCombine/and.ll @@ -382,6 +382,19 @@ define i32 @test31(i1 %X) { ret i32 %A } +; FIXME: Demanded bit analysis allows us to eliminate the add. + +define <2 x i32> @and_demanded_bits_splat_vec(<2 x i32> %x) { +; CHECK-LABEL: @and_demanded_bits_splat_vec( +; CHECK-NEXT: [[Y:%.*]] = add <2 x i32> %x, <i32 8, i32 8> +; CHECK-NEXT: [[Z:%.*]] = and <2 x i32> [[Y]], <i32 7, i32 7> +; CHECK-NEXT: ret <2 x i32> [[Z]] +; + %y = add <2 x i32> %x, <i32 8, i32 8> + %z = and <2 x i32> %y, <i32 7, i32 7> + ret <2 x i32> %z +} + define i32 @test32(i32 %In) { ; CHECK-LABEL: @test32( ; CHECK-NEXT: ret i32 0 |
