; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse2 | FileCheck %s --check-prefix=SSE ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx | FileCheck %s --check-prefix=AVX ; First, check the generic pattern for any 2 vector constants. Then, check special cases where ; the constants are all off-by-one. Finally, check the extra special cases where the constants ; include 0 or -1. ; Each minimal select test is repeated with a more typical pattern that includes a compare to ; generate the condition value. ; TODO: If we don't have blendv, this can definitely be improved. There's also a selection of ; chips where it makes sense to transform the general case blendv to 2 bit-ops. That should be ; a uarch-specfic transform. At some point (Ryzen?), the implementation should catch up to the ; architecture, so blendv is as fast as a single bit-op. define <4 x i32> @sel_C1_or_C2_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_C1_or_C2_vec: ; SSE: # %bb.0: ; SSE-NEXT: pslld $31, %xmm0 ; SSE-NEXT: psrad $31, %xmm0 ; SSE-NEXT: movdqa %xmm0, %xmm1 ; SSE-NEXT: pandn {{.*}}(%rip), %xmm1 ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: por %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_C1_or_C2_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpslld $31, %xmm0, %xmm0 ; AVX-NEXT: vmovaps {{.*#+}} xmm1 = [42,0,4294967294,4294967295] ; AVX-NEXT: vblendvps %xmm0, {{.*}}(%rip), %xmm1, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_C1_or_C2_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_C1_or_C2_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: movdqa %xmm0, %xmm1 ; SSE-NEXT: pandn {{.*}}(%rip), %xmm1 ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: por %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_C1_or_C2_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vmovaps {{.*#+}} xmm1 = [42,0,4294967294,4294967295] ; AVX-NEXT: vblendvps %xmm0, {{.*}}(%rip), %xmm1, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_Cplus1_or_C_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_Cplus1_or_C_vec: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: paddd {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_Cplus1_or_C_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: vpaddd {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_Cplus1_or_C_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_Cplus1_or_C_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: movdqa {{.*#+}} xmm1 = [42,0,4294967294,4294967295] ; SSE-NEXT: psubd %xmm0, %xmm1 ; SSE-NEXT: movdqa %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_Cplus1_or_C_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [42,0,4294967294,4294967295] ; AVX-NEXT: vpsubd %xmm0, %xmm1, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_Cminus1_or_C_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_Cminus1_or_C_vec: ; SSE: # %bb.0: ; SSE-NEXT: pslld $31, %xmm0 ; SSE-NEXT: psrad $31, %xmm0 ; SSE-NEXT: paddd {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_Cminus1_or_C_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpslld $31, %xmm0, %xmm0 ; AVX-NEXT: vpsrad $31, %xmm0, %xmm0 ; AVX-NEXT: vpaddd {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_Cminus1_or_C_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_Cminus1_or_C_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: paddd {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_Cminus1_or_C_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vpaddd {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_minus1_or_0_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_minus1_or_0_vec: ; SSE: # %bb.0: ; SSE-NEXT: pslld $31, %xmm0 ; SSE-NEXT: psrad $31, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_minus1_or_0_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpslld $31, %xmm0, %xmm0 ; AVX-NEXT: vpsrad $31, %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_minus1_or_0_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_minus1_or_0_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_minus1_or_0_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_0_or_minus1_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_0_or_minus1_vec: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: pcmpeqd %xmm1, %xmm1 ; SSE-NEXT: paddd %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_0_or_minus1_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX-NEXT: vpaddd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_0_or_minus1_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_0_or_minus1_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: pcmpeqd %xmm1, %xmm1 ; SSE-NEXT: pxor %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_0_or_minus1_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX-NEXT: vpxor %xmm1, %xmm0, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_1_or_0_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_1_or_0_vec: ; SSE: # %bb.0: ; SSE-NEXT: andps {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_1_or_0_vec: ; AVX: # %bb.0: ; AVX-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_1_or_0_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_1_or_0_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: psrld $31, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_1_or_0_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vpsrld $31, %xmm0, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @sel_0_or_1_vec(<4 x i1> %cond) { ; SSE-LABEL: sel_0_or_1_vec: ; SSE: # %bb.0: ; SSE-NEXT: andnps {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: sel_0_or_1_vec: ; AVX: # %bb.0: ; AVX-NEXT: vandnps {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } define <4 x i32> @cmp_sel_0_or_1_vec(<4 x i32> %x, <4 x i32> %y) { ; SSE-LABEL: cmp_sel_0_or_1_vec: ; SSE: # %bb.0: ; SSE-NEXT: pcmpeqd %xmm1, %xmm0 ; SSE-NEXT: pandn {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: cmp_sel_0_or_1_vec: ; AVX: # %bb.0: ; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vpandn {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: retq %cond = icmp eq <4 x i32> %x, %y %add = select <4 x i1> %cond, <4 x i32> , <4 x i32> ret <4 x i32> %add } ; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21167 define <2 x i37> @ossfuzz21167(<2 x i37> %x, <2 x i37> %y) { ; SSE-LABEL: ossfuzz21167: ; SSE: # %bb.0: # %BB ; SSE-NEXT: psllq $27, %xmm1 ; SSE-NEXT: movdqa %xmm1, %xmm0 ; SSE-NEXT: psrad $27, %xmm0 ; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,3,2,3] ; SSE-NEXT: psrlq $27, %xmm1 ; SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3] ; SSE-NEXT: punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1] ; SSE-NEXT: movdqa {{.*#+}} xmm0 = [2147483648,2147483648] ; SSE-NEXT: pxor %xmm0, %xmm1 ; SSE-NEXT: movdqa %xmm1, %xmm2 ; SSE-NEXT: pcmpgtd %xmm0, %xmm2 ; SSE-NEXT: pcmpeqd %xmm0, %xmm1 ; SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3] ; SSE-NEXT: pand %xmm2, %xmm1 ; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm2[1,1,3,3] ; SSE-NEXT: por %xmm1, %xmm0 ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: ossfuzz21167: ; AVX: # %bb.0: # %BB ; AVX-NEXT: vpsllq $27, %xmm1, %xmm0 ; AVX-NEXT: vpsrad $27, %xmm0, %xmm1 ; AVX-NEXT: vpsrlq $27, %xmm0, %xmm0 ; AVX-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3],xmm0[4,5],xmm1[6,7] ; AVX-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; AVX-NEXT: vpcmpgtq %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vpsrlq $63, %xmm0, %xmm0 ; AVX-NEXT: retq BB: %c0 = icmp sgt <2 x i37> %y, zeroinitializer %xor_x = xor <2 x i37> undef, undef %smax96 = select <2 x i1> %c0, <2 x i37> %xor_x, <2 x i37> zeroinitializer ret <2 x i37> %smax96 }