[llvm] r199683 - [X86] Teach how to combine a vselect into a movss/movsd
Andrea Di Biagio
Andrea_DiBiagio at sn.scee.net
Mon Jan 20 11:35:22 PST 2014
Author: adibiagio
Date: Mon Jan 20 13:35:22 2014
New Revision: 199683
URL: http://llvm.org/viewvc/llvm-project?rev=199683&view=rev
Log:
[X86] Teach how to combine a vselect into a movss/movsd
Add target specific rules for combining vselect dag nodes into movss/movsd
when possible.
If the vector type of the vselect dag node in input is either MVT::v4i13 or
MVT::v4f32, then try to fold according to rules:
1) fold (vselect (build_vector (0, -1, -1, -1)), A, B) -> (movss A, B)
2) fold (vselect (build_vector (-1, 0, 0, 0)), A, B) -> (movss B, A)
If the vector type of the vselect dag node in input is either MVT::v2i64 or
MVT::v2f64 (and we have SSE2), then try to fold according to rules:
3) fold (vselect (build_vector (0, -1)), A, B) -> (movsd A, B)
4) fold (vselect (build_vector (-1, 0)), A, B) -> (movsd B, A)
Modified:
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
llvm/trunk/test/CodeGen/X86/avx-blend.ll
llvm/trunk/test/CodeGen/X86/blend-msb.ll
llvm/trunk/test/CodeGen/X86/sse-scalar-fp-arith-2.ll
llvm/trunk/test/CodeGen/X86/sse2-blend.ll
llvm/trunk/test/CodeGen/X86/sse41-blend.ll
llvm/trunk/test/CodeGen/X86/vselect.ll
Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Jan 20 13:35:22 2014
@@ -17155,6 +17155,41 @@ static SDValue PerformSELECTCombine(SDNo
}
}
+ // Try to fold this VSELECT into a MOVSS/MOVSD
+ if (N->getOpcode() == ISD::VSELECT &&
+ Cond.getOpcode() == ISD::BUILD_VECTOR && !DCI.isBeforeLegalize()) {
+ if (VT == MVT::v4i32 || VT == MVT::v4f32 ||
+ (Subtarget->hasSSE2() && (VT == MVT::v2i64 || VT == MVT::v2f64))) {
+ bool CanFold = false;
+ unsigned NumElems = Cond.getNumOperands();
+ SDValue A = LHS;
+ SDValue B = RHS;
+
+ if (isZero(Cond.getOperand(0))) {
+ CanFold = true;
+
+ // fold (vselect <0,-1,-1,-1>, A, B) -> (movss A, B)
+ // fold (vselect <0,-1> -> (movsd A, B)
+ for (unsigned i = 1, e = NumElems; i != e && CanFold; ++i)
+ CanFold = isAllOnes(Cond.getOperand(i));
+ } else if (isAllOnes(Cond.getOperand(0))) {
+ CanFold = true;
+ std::swap(A, B);
+
+ // fold (vselect <-1,0,0,0>, A, B) -> (movss B, A)
+ // fold (vselect <-1,0> -> (movsd B, A)
+ for (unsigned i = 1, e = NumElems; i != e && CanFold; ++i)
+ CanFold = isZero(Cond.getOperand(i));
+ }
+
+ if (CanFold) {
+ if (VT == MVT::v4i32 || VT == MVT::v4f32)
+ return getTargetShuffleNode(X86ISD::MOVSS, DL, VT, A, B, DAG);
+ return getTargetShuffleNode(X86ISD::MOVSD, DL, VT, A, B, DAG);
+ }
+ }
+ }
+
// If we know that this node is legal then we know that it is going to be
// matched by one of the SSE/AVX BLEND instructions. These instructions only
// depend on the highest bit in each word. Try to use SimplifyDemandedBits
Modified: llvm/trunk/test/CodeGen/X86/avx-blend.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx-blend.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx-blend.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx-blend.ll Mon Jan 20 13:35:22 2014
@@ -6,7 +6,7 @@
;CHECK: vblendvps
;CHECK: ret
define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %v1, <4 x float> %v2
+ %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x float> %v1, <4 x float> %v2
ret <4 x float> %vsel
}
@@ -15,13 +15,13 @@ define <4 x float> @vsel_float(<4 x floa
;CHECK: vblendvps
;CHECK: ret
define <4 x i32> @vsel_i32(<4 x i32> %v1, <4 x i32> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i32> %v1, <4 x i32> %v2
+ %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x i32> %v1, <4 x i32> %v2
ret <4 x i32> %vsel
}
;CHECK-LABEL: vsel_double:
-;CHECK: vblendvpd
+;CHECK: vmovsd
;CHECK: ret
define <2 x double> @vsel_double(<2 x double> %v1, <2 x double> %v2) {
%vsel = select <2 x i1> <i1 true, i1 false>, <2 x double> %v1, <2 x double> %v2
@@ -30,7 +30,7 @@ define <2 x double> @vsel_double(<2 x do
;CHECK-LABEL: vsel_i64:
-;CHECK: vblendvpd
+;CHECK: vmovsd
;CHECK: ret
define <2 x i64> @vsel_i64(<2 x i64> %v1, <2 x i64> %v2) {
%vsel = select <2 x i1> <i1 true, i1 false>, <2 x i64> %v1, <2 x i64> %v2
Modified: llvm/trunk/test/CodeGen/X86/blend-msb.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/blend-msb.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/blend-msb.ll (original)
+++ llvm/trunk/test/CodeGen/X86/blend-msb.ll Mon Jan 20 13:35:22 2014
@@ -1,13 +1,11 @@
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -mattr=+sse4.1 | FileCheck %s
-; In this test we check that sign-extend of the mask bit is performed by
-; shifting the needed bit to the MSB, and not using shl+sra.
+; Verify that we produce movss instead of blendvps when possible.
;CHECK-LABEL: vsel_float:
-;CHECK: movl $-1
-;CHECK-NEXT: movd
-;CHECK-NEXT: blendvps
+;CHECK-NOT: blendvps
+;CHECK: movss
;CHECK: ret
define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
%vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %v1, <4 x float> %v2
@@ -15,9 +13,8 @@ define <4 x float> @vsel_float(<4 x floa
}
;CHECK-LABEL: vsel_4xi8:
-;CHECK: movl $-1
-;CHECK-NEXT: movd
-;CHECK-NEXT: blendvps
+;CHECK-NOT: blendvps
+;CHECK: movss
;CHECK: ret
define <4 x i8> @vsel_4xi8(<4 x i8> %v1, <4 x i8> %v2) {
%vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i8> %v1, <4 x i8> %v2
Modified: llvm/trunk/test/CodeGen/X86/sse-scalar-fp-arith-2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sse-scalar-fp-arith-2.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sse-scalar-fp-arith-2.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sse-scalar-fp-arith-2.ll Mon Jan 20 13:35:22 2014
@@ -213,3 +213,211 @@ define <2 x double> @test2_div_sd(<2 x d
; CHECK-NOT: movsd
; CHECK: ret
+
+define <4 x float> @test3_add_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fadd <4 x float> %a, %b
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test3_add_ss
+; SSE2: addss %xmm1, %xmm0
+; AVX: vaddss %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test3_sub_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fsub <4 x float> %a, %b
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test3_sub_ss
+; SSE2: subss %xmm1, %xmm0
+; AVX: vsubss %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test3_mul_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fmul <4 x float> %a, %b
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test3_mul_ss
+; SSE2: mulss %xmm1, %xmm0
+; AVX: vmulss %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test3_div_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fdiv <4 x float> %a, %b
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test3_div_ss
+; SSE2: divss %xmm1, %xmm0
+; AVX: vdivss %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <2 x double> @test3_add_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fadd <2 x double> %a, %b
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test3_add_sd
+; SSE2: addsd %xmm1, %xmm0
+; AVX: vaddsd %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test3_sub_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fsub <2 x double> %a, %b
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test3_sub_sd
+; SSE2: subsd %xmm1, %xmm0
+; AVX: vsubsd %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test3_mul_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fmul <2 x double> %a, %b
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test3_mul_sd
+; SSE2: mulsd %xmm1, %xmm0
+; AVX: vmulsd %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test3_div_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fdiv <2 x double> %a, %b
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test3_div_sd
+; SSE2: divsd %xmm1, %xmm0
+; AVX: vdivsd %xmm1, %xmm0, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <4 x float> @test4_add_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fadd <4 x float> %b, %a
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %b, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test4_add_ss
+; SSE2: addss %xmm0, %xmm1
+; AVX: vaddss %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test4_sub_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fsub <4 x float> %b, %a
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %b, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test4_sub_ss
+; SSE2: subss %xmm0, %xmm1
+; AVX: vsubss %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test4_mul_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fmul <4 x float> %b, %a
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %b, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test4_mul_ss
+; SSE2: mulss %xmm0, %xmm1
+; AVX: vmulss %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <4 x float> @test4_div_ss(<4 x float> %a, <4 x float> %b) {
+ %1 = fdiv <4 x float> %b, %a
+ %2 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %b, <4 x float> %1
+ ret <4 x float> %2
+}
+
+; CHECK-LABEL: test4_div_ss
+; SSE2: divss %xmm0, %xmm1
+; AVX: vdivss %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movss
+; CHECK: ret
+
+
+define <2 x double> @test4_add_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fadd <2 x double> %b, %a
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %b, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test4_add_sd
+; SSE2: addsd %xmm0, %xmm1
+; AVX: vaddsd %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test4_sub_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fsub <2 x double> %b, %a
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %b, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test4_sub_sd
+; SSE2: subsd %xmm0, %xmm1
+; AVX: vsubsd %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test4_mul_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fmul <2 x double> %b, %a
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %b, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test4_mul_sd
+; SSE2: mulsd %xmm0, %xmm1
+; AVX: vmulsd %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
+
+define <2 x double> @test4_div_sd(<2 x double> %a, <2 x double> %b) {
+ %1 = fdiv <2 x double> %b, %a
+ %2 = select <2 x i1> <i1 false, i1 true>, <2 x double> %b, <2 x double> %1
+ ret <2 x double> %2
+}
+
+; CHECK-LABEL: test4_div_sd
+; SSE2: divsd %xmm0, %xmm1
+; AVX: vdivsd %xmm0, %xmm1, %xmm0
+; CHECK-NOT: movsd
+; CHECK: ret
+
Modified: llvm/trunk/test/CodeGen/X86/sse2-blend.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sse2-blend.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sse2-blend.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sse2-blend.ll Mon Jan 20 13:35:22 2014
@@ -1,22 +1,22 @@
; RUN: llc < %s -march=x86 -mcpu=yonah -mattr=+sse2,-sse4.1 | FileCheck %s
-; CHECK: vsel_float
-; CHECK: xorps
+; CHECK-LABEL: vsel_float
+; CHECK-NOT: xorps
; CHECK: movss
-; CHECK: orps
+; CHECK-NOT: orps
; CHECK: ret
define void at vsel_float(<4 x float>* %v1, <4 x float>* %v2) {
%A = load <4 x float>* %v1
%B = load <4 x float>* %v2
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %A, <4 x float> %B
+ %vsel = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %A, <4 x float> %B
store <4 x float > %vsel, <4 x float>* %v1
ret void
}
-; CHECK: vsel_i32
-; CHECK: xorps
+; CHECK-LABEL: vsel_i32
+; CHECK-NOT: xorps
; CHECK: movss
-; CHECK: orps
+; CHECK-NOT: orps
; CHECK: ret
define void at vsel_i32(<4 x i32>* %v1, <4 x i32>* %v2) {
%A = load <4 x i32>* %v1
@@ -27,7 +27,7 @@ define void at vsel_i32(<4 x i32>* %v1, <4
}
; Without forcing instructions, fall back to the preferred PS domain.
-; CHECK: vsel_i64
+; CHECK-LABEL: vsel_i64
; CHECK: andnps
; CHECK: orps
; CHECK: ret
@@ -41,7 +41,7 @@ define void at vsel_i64(<2 x i64>* %v1, <2
}
; Without forcing instructions, fall back to the preferred PS domain.
-; CHECK: vsel_double
+; CHECK-LABEL: vsel_double
; CHECK: andnps
; CHECK: orps
; CHECK: ret
Modified: llvm/trunk/test/CodeGen/X86/sse41-blend.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sse41-blend.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sse41-blend.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sse41-blend.ll Mon Jan 20 13:35:22 2014
@@ -4,7 +4,7 @@
;CHECK: blendvps
;CHECK: ret
define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %v1, <4 x float> %v2
+ %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 true>, <4 x float> %v1, <4 x float> %v2
ret <4 x float> %vsel
}
@@ -13,7 +13,7 @@ define <4 x float> @vsel_float(<4 x floa
;CHECK: blendvps
;CHECK: ret
define <4 x i8> @vsel_4xi8(<4 x i8> %v1, <4 x i8> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i8> %v1, <4 x i8> %v2
+ %vsel = select <4 x i1> <i1 true, i1 true, i1 false, i1 false>, <4 x i8> %v1, <4 x i8> %v2
ret <4 x i8> %vsel
}
@@ -21,7 +21,7 @@ define <4 x i8> @vsel_4xi8(<4 x i8> %v1,
;CHECK: blendvps
;CHECK: ret
define <4 x i16> @vsel_4xi16(<4 x i16> %v1, <4 x i16> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i16> %v1, <4 x i16> %v2
+ %vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 true>, <4 x i16> %v1, <4 x i16> %v2
ret <4 x i16> %vsel
}
@@ -30,13 +30,13 @@ define <4 x i16> @vsel_4xi16(<4 x i16> %
;CHECK: blendvps
;CHECK: ret
define <4 x i32> @vsel_i32(<4 x i32> %v1, <4 x i32> %v2) {
- %vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i32> %v1, <4 x i32> %v2
+ %vsel = select <4 x i1> <i1 true, i1 true, i1 false, i1 false>, <4 x i32> %v1, <4 x i32> %v2
ret <4 x i32> %vsel
}
;CHECK-LABEL: vsel_double:
-;CHECK: blendvpd
+;CHECK: movsd
;CHECK: ret
define <4 x double> @vsel_double(<4 x double> %v1, <4 x double> %v2) {
%vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x double> %v1, <4 x double> %v2
@@ -45,7 +45,7 @@ define <4 x double> @vsel_double(<4 x do
;CHECK-LABEL: vsel_i64:
-;CHECK: blendvpd
+;CHECK: movsd
;CHECK: ret
define <4 x i64> @vsel_i64(<4 x i64> %v1, <4 x i64> %v2) {
%vsel = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i64> %v1, <4 x i64> %v2
Modified: llvm/trunk/test/CodeGen/X86/vselect.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vselect.ll?rev=199683&r1=199682&r2=199683&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vselect.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vselect.ll Mon Jan 20 13:35:22 2014
@@ -174,3 +174,91 @@ define <8 x i16> @test17(<8 x i16> %a, <
; CHECK-NOT: xorps
; CHECK: ret
+define <4 x float> @test18(<4 x float> %a, <4 x float> %b) {
+ %1 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
+ ret <4 x float> %1
+}
+; CHECK-LABEL: test18
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movss
+; CHECK: ret
+
+define <4 x i32> @test19(<4 x i32> %a, <4 x i32> %b) {
+ %1 = select <4 x i1> <i1 false, i1 true, i1 true, i1 true>, <4 x i32> %a, <4 x i32> %b
+ ret <4 x i32> %1
+}
+; CHECK-LABEL: test19
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movss
+; CHECK: ret
+
+define <2 x double> @test20(<2 x double> %a, <2 x double> %b) {
+ %1 = select <2 x i1> <i1 false, i1 true>, <2 x double> %a, <2 x double> %b
+ ret <2 x double> %1
+}
+; CHECK-LABEL: test20
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movsd
+; CHECK: ret
+
+define <2 x i64> @test21(<2 x i64> %a, <2 x i64> %b) {
+ %1 = select <2 x i1> <i1 false, i1 true>, <2 x i64> %a, <2 x i64> %b
+ ret <2 x i64> %1
+}
+; CHECK-LABEL: test21
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movsd
+; CHECK: ret
+
+define <4 x float> @test22(<4 x float> %a, <4 x float> %b) {
+ %1 = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x float> %a, <4 x float> %b
+ ret <4 x float> %1
+}
+; CHECK-LABEL: test22
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movss
+; CHECK: ret
+
+define <4 x i32> @test23(<4 x i32> %a, <4 x i32> %b) {
+ %1 = select <4 x i1> <i1 true, i1 false, i1 false, i1 false>, <4 x i32> %a, <4 x i32> %b
+ ret <4 x i32> %1
+}
+; CHECK-LABEL: test23
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movss
+; CHECK: ret
+
+define <2 x double> @test24(<2 x double> %a, <2 x double> %b) {
+ %1 = select <2 x i1> <i1 true, i1 false>, <2 x double> %a, <2 x double> %b
+ ret <2 x double> %1
+}
+; CHECK-LABEL: test24
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movsd
+; CHECK: ret
+
+define <2 x i64> @test25(<2 x i64> %a, <2 x i64> %b) {
+ %1 = select <2 x i1> <i1 true, i1 false>, <2 x i64> %a, <2 x i64> %b
+ ret <2 x i64> %1
+}
+; CHECK-LABEL: test25
+; CHECK-NOT: psllw
+; CHECK-NOT: psraw
+; CHECK-NOT: xorps
+; CHECK: movsd
+; CHECK: ret
+
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