[x86] add tests for select-of-FP-constants; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347406 91177308-0d34-0410-b5e6-96231b3b80d8

Author: rotateright

test/CodeGen/X86/vselect-zero.ll

@@ -117,3 +117,56 @@ define double @fsel_nonzero_true_val(double %x, double %y, double %z) {
   ret double %r
 }
 
+define double @fsel_nonzero_constants(double %x, double %y) {
+; SSE-LABEL: fsel_nonzero_constants:
+; SSE:       # %bb.0:
+; SSE-NEXT:    cmpeqsd %xmm1, %xmm0
+; SSE-NEXT:    movq %xmm0, %rax
+; SSE-NEXT:    andl $1, %eax
+; SSE-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: fsel_nonzero_constants:
+; AVX:       # %bb.0:
+; AVX-NEXT:    vcmpeqsd %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vmovq %xmm0, %rax
+; AVX-NEXT:    andl $1, %eax
+; AVX-NEXT:    vmovsd {{.*#+}} xmm0 = mem[0],zero
+; AVX-NEXT:    retq
+  %cond = fcmp oeq double %x, %y
+  %r = select i1 %cond, double 12.0, double 42.0
+  ret double %r
+}
+
+define <2 x double> @vsel_nonzero_constants(<2 x double> %x, <2 x double> %y) {
+; SSE2-LABEL: vsel_nonzero_constants:
+; SSE2:       # %bb.0:
+; SSE2-NEXT:    cmplepd %xmm0, %xmm1
+; SSE2-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
+; SSE2-NEXT:    movapd %xmm1, %xmm2
+; SSE2-NEXT:    andnpd %xmm0, %xmm2
+; SSE2-NEXT:    andpd {{.*}}(%rip), %xmm1
+; SSE2-NEXT:    orpd %xmm2, %xmm1
+; SSE2-NEXT:    movapd %xmm1, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSE42-LABEL: vsel_nonzero_constants:
+; SSE42:       # %bb.0:
+; SSE42-NEXT:    cmplepd %xmm0, %xmm1
+; SSE42-NEXT:    movsd {{.*#+}} xmm2 = mem[0],zero
+; SSE42-NEXT:    movapd %xmm1, %xmm0
+; SSE42-NEXT:    blendvpd %xmm0, {{.*}}(%rip), %xmm2
+; SSE42-NEXT:    movapd %xmm2, %xmm0
+; SSE42-NEXT:    retq
+;
+; AVX-LABEL: vsel_nonzero_constants:
+; AVX:       # %bb.0:
+; AVX-NEXT:    vcmplepd %xmm0, %xmm1, %xmm0
+; AVX-NEXT:    vmovsd {{.*#+}} xmm1 = mem[0],zero
+; AVX-NEXT:    vblendvpd %xmm0, {{.*}}(%rip), %xmm1, %xmm0
+; AVX-NEXT:    retq
+  %cond = fcmp oge <2 x double> %x, %y
+  %r = select <2 x i1> %cond, <2 x double> <double 12.0, double -1.0>, <2 x double> <double 42.0, double 0.0>
+  ret <2 x double> %r
+}
+