return DAG.getNode(Opc, DL, VT, LHS, RHS);
}
- // Simplify vector selection if condition value type matches vselect
- // operand type
- if (N->getOpcode() == ISD::VSELECT && CondVT == VT) {
+ // Simplify vector selection if the selector will be produced by CMPP*/PCMP*.
+ if (N->getOpcode() == ISD::VSELECT && Cond.getOpcode() == ISD::SETCC &&
+ // Check if SETCC has already been promoted
+ TLI.getSetCCResultType(*DAG.getContext(), VT) == CondVT &&
+ // Check that condition value type matches vselect operand type
+ CondVT == VT) {
+
assert(Cond.getValueType().isVector() &&
"vector select expects a vector selector!");
bool TValIsAllOnes = ISD::isBuildVectorAllOnes(LHS.getNode());
bool FValIsAllZeros = ISD::isBuildVectorAllZeros(RHS.getNode());
- // Try invert the condition if true value is not all 1s and false value
- // is not all 0s.
- if (!TValIsAllOnes && !FValIsAllZeros &&
- // Check if the selector will be produced by CMPP*/PCMP*
- Cond.getOpcode() == ISD::SETCC &&
- // Check if SETCC has already been promoted
- TLI.getSetCCResultType(*DAG.getContext(), VT) == CondVT) {
+ if (!TValIsAllOnes && !FValIsAllZeros) {
+ // Try invert the condition if true value is not all 1s and false value
+ // is not all 0s.
bool TValIsAllZeros = ISD::isBuildVectorAllZeros(LHS.getNode());
bool FValIsAllOnes = ISD::isBuildVectorAllOnes(RHS.getNode());
%sel = select <16 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>, <16 x double> %a, <16 x double> %b
ret <16 x double> %sel
}
-
-; CHECK-LABEL: select05
-; CHECK: kmovw %esi, %k0
-; CHECK-NEXT: kmovw %edi, %k1
-; CHECK-NEXT: korw %k1, %k0, %k0
-; CHECK-NEXT: kmovw %k0, %eax
-define i8 @select05(i8 %a.0, i8 %m) {
- %mask = bitcast i8 %m to <8 x i1>
- %a = bitcast i8 %a.0 to <8 x i1>
- %r = select <8 x i1> %mask, <8 x i1> <i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1>, <8 x i1> %a
- %res = bitcast <8 x i1> %r to i8
- ret i8 %res;
-}
-
-; CHECK-LABEL: select06
-; CHECK: kmovw %esi, %k0
-; CHECK-NEXT: kmovw %edi, %k1
-; CHECK-NEXT: kandw %k1, %k0, %k0
-; CHECK-NEXT: kmovw %k0, %eax
-define i8 @select06(i8 %a.0, i8 %m) {
- %mask = bitcast i8 %m to <8 x i1>
- %a = bitcast i8 %a.0 to <8 x i1>
- %r = select <8 x i1> %mask, <8 x i1> %a, <8 x i1> zeroinitializer
- %res = bitcast <8 x i1> %r to i8
- ret i8 %res;
-}
-
-; CHECK-LABEL: select07
-; CHECK-DAG: kmovw %edx, %k0
-; CHECK-DAG: kmovw %edi, %k1
-; CHECK-DAG: kmovw %esi, %k2
-; CHECK: kandw %k0, %k1, %k1
-; CHECK-NEXT: knotw %k0, %k0
-; CHECK-NEXT: kandw %k0, %k2, %k0
-; CHECK-NEXT: korw %k0, %k1, %k0
-; CHECK-NEXT: kmovw %k0, %eax
-define i8 @select07(i8 %a.0, i8 %b.0, i8 %m) {
- %mask = bitcast i8 %m to <8 x i1>
- %a = bitcast i8 %a.0 to <8 x i1>
- %b = bitcast i8 %b.0 to <8 x i1>
- %r = select <8 x i1> %mask, <8 x i1> %a, <8 x i1> %b
- %res = bitcast <8 x i1> %r to i8
- ret i8 %res;
-}
; <rdar://problem/18675020>
; CHECK-LABEL: test:
-; CHECK: vmovdqa {{.*#+}} xmm0 = [65535,0,0,65535]
-; CHECK: vmovdqa {{.*#+}} xmm2 = [65533,124,125,14807]
+; CHECK: vmovdqa {{.*#+}} xmm1 = [65533,124,125,14807]
+; CHECK: vmovdqa {{.*#+}} xmm1 = [65535,0,0,65535]
; CHECK: ret
define void @test(<4 x i16>* %a, <4 x i16>* %b) {
body: