- When selecting BLEND from vselect, the operands need swapping as due to the
difference between vselect and SSE/AVX's BLEND insn
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193900
91177308-0d34-0410-b5e6-
96231b3b80d8
let Predicates = [HasAVX2] in {
def : Pat<(v32i8 (vselect (v32i8 VR256:$mask), (v32i8 VR256:$src1),
(v32i8 VR256:$src2))),
- (VPBLENDVBYrr VR256:$src1, VR256:$src2, VR256:$mask)>;
+ (VPBLENDVBYrr VR256:$src2, VR256:$src1, VR256:$mask)>;
def : Pat<(v16i16 (X86Blendi (v16i16 VR256:$src1), (v16i16 VR256:$src2),
(imm:$mask))),
(VPBLENDWYrri VR256:$src1, VR256:$src2, imm:$mask)>;
--- /dev/null
+; RUN: llc < %s -mtriple=x86_64-linux -mcpu=core-avx2 | FileCheck %s
+
+define <16 x i16> @foo(<16 x i1> %mask, <16 x i16> %x, <16 x i16> %y) {
+ %ret = select <16 x i1> %mask, <16 x i16> %x, <16 x i16> %y
+ ret <16 x i16> %ret
+}
+
+; CHECK: foo
+; CHECK: vpblendvb %ymm0, %ymm1, %ymm2, %ymm0
+; CHECK: ret