; 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-prefixes=SSE,SSE2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefixes=SSE,SSE41 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX ; Verify that we don't emit packed vector shifts instructions if the ; condition used by the vector select is a vector of constants. define <4 x float> @test1(<4 x float> %a, <4 x float> %b) { ; SSE2-LABEL: test1: ; SSE2: # %bb.0: ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[1,3] ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2,1,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test1: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2],xmm1[3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test1: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2],xmm1[3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x float> @test2(<4 x float> %a, <4 x float> %b) { ; SSE2-LABEL: test2: ; SSE2: # %bb.0: ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test2: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test2: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x float> @test3(<4 x float> %a, <4 x float> %b) { ; SSE2-LABEL: test3: ; SSE2: # %bb.0: ; SSE2-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test3: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test3: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x float> @test4(<4 x float> %a, <4 x float> %b) { ; SSE-LABEL: test4: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test4: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x float> @test5(<4 x float> %a, <4 x float> %b) { ; SSE-LABEL: test5: ; SSE: # %bb.0: ; SSE-NEXT: retq ; ; AVX-LABEL: test5: ; AVX: # %bb.0: ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <8 x i16> @test6(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test6: ; SSE: # %bb.0: ; SSE-NEXT: retq ; ; AVX-LABEL: test6: ; AVX: # %bb.0: ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %a ret <8 x i16> %1 } define <8 x i16> @test7(<8 x i16> %a, <8 x i16> %b) { ; SSE2-LABEL: test7: ; SSE2: # %bb.0: ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test7: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test7: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test8(<8 x i16> %a, <8 x i16> %b) { ; SSE2-LABEL: test8: ; SSE2: # %bb.0: ; SSE2-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test8: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test8: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test9(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test9: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test9: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test10(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test10: ; SSE: # %bb.0: ; SSE-NEXT: retq ; ; AVX-LABEL: test10: ; AVX: # %bb.0: ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test11(<8 x i16> %a, <8 x i16> %b) { ; SSE2-LABEL: test11: ; SSE2: # %bb.0: ; SSE2-NEXT: movaps {{.*#+}} xmm2 = [0,65535,65535,0,0,65535,65535,0] ; SSE2-NEXT: andps %xmm2, %xmm0 ; SSE2-NEXT: andnps %xmm1, %xmm2 ; SSE2-NEXT: orps %xmm2, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: test11: ; SSE41: # %bb.0: ; SSE41-NEXT: pblendw {{.*#+}} xmm0 = xmm1[0],xmm0[1,2],xmm1[3,4],xmm0[5,6],xmm1[7] ; SSE41-NEXT: retq ; ; AVX-LABEL: test11: ; AVX: # %bb.0: ; AVX-NEXT: vpblendw {{.*#+}} xmm0 = xmm1[0],xmm0[1,2],xmm1[3,4],xmm0[5,6],xmm1[7] ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test12(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test12: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test12: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <8 x i16> @test13(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test13: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test13: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } ; Fold (vselect (build_vector AllOnes), N1, N2) -> N1 define <4 x float> @test14(<4 x float> %a, <4 x float> %b) { ; SSE-LABEL: test14: ; SSE: # %bb.0: ; SSE-NEXT: retq ; ; AVX-LABEL: test14: ; AVX: # %bb.0: ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <8 x i16> @test15(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test15: ; SSE: # %bb.0: ; SSE-NEXT: retq ; ; AVX-LABEL: test15: ; AVX: # %bb.0: ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } ; Fold (vselect (build_vector AllZeros), N1, N2) -> N2 define <4 x float> @test16(<4 x float> %a, <4 x float> %b) { ; SSE-LABEL: test16: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test16: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <8 x i16> @test17(<8 x i16> %a, <8 x i16> %b) { ; SSE-LABEL: test17: ; SSE: # %bb.0: ; SSE-NEXT: movaps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: test17: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %xmm1, %xmm0 ; AVX-NEXT: retq %1 = select <8 x i1> , <8 x i16> %a, <8 x i16> %b ret <8 x i16> %1 } define <4 x float> @test18(<4 x float> %a, <4 x float> %b) { ; SSE2-LABEL: test18: ; SSE2: # %bb.0: ; SSE2-NEXT: movss {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test18: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test18: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x i32> @test19(<4 x i32> %a, <4 x i32> %b) { ; SSE2-LABEL: test19: ; SSE2: # %bb.0: ; SSE2-NEXT: movss {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test19: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test19: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x i32> %a, <4 x i32> %b ret <4 x i32> %1 } define <2 x double> @test20(<2 x double> %a, <2 x double> %b) { ; SSE2-LABEL: test20: ; SSE2: # %bb.0: ; SSE2-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test20: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test20: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; AVX-NEXT: retq %1 = select <2 x i1> , <2 x double> %a, <2 x double> %b ret <2 x double> %1 } define <2 x i64> @test21(<2 x i64> %a, <2 x i64> %b) { ; SSE2-LABEL: test21: ; SSE2: # %bb.0: ; SSE2-NEXT: movsd {{.*#+}} xmm0 = xmm1[0],xmm0[1] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test21: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test21: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm1[0,1],xmm0[2,3] ; AVX-NEXT: retq %1 = select <2 x i1> , <2 x i64> %a, <2 x i64> %b ret <2 x i64> %1 } define <4 x float> @test22(<4 x float> %a, <4 x float> %b) { ; SSE2-LABEL: test22: ; SSE2: # %bb.0: ; SSE2-NEXT: movss {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3] ; SSE2-NEXT: movaps %xmm1, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: test22: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test22: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x float> %a, <4 x float> %b ret <4 x float> %1 } define <4 x i32> @test23(<4 x i32> %a, <4 x i32> %b) { ; SSE2-LABEL: test23: ; SSE2: # %bb.0: ; SSE2-NEXT: movss {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3] ; SSE2-NEXT: movaps %xmm1, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: test23: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test23: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] ; AVX-NEXT: retq %1 = select <4 x i1> , <4 x i32> %a, <4 x i32> %b ret <4 x i32> %1 } define <2 x double> @test24(<2 x double> %a, <2 x double> %b) { ; SSE2-LABEL: test24: ; SSE2: # %bb.0: ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test24: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test24: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; AVX-NEXT: retq %1 = select <2 x i1> , <2 x double> %a, <2 x double> %b ret <2 x double> %1 } define <2 x i64> @test25(<2 x i64> %a, <2 x i64> %b) { ; SSE2-LABEL: test25: ; SSE2: # %bb.0: ; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE2-NEXT: retq ; ; SSE41-LABEL: test25: ; SSE41: # %bb.0: ; SSE41-NEXT: blendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; SSE41-NEXT: retq ; ; AVX-LABEL: test25: ; AVX: # %bb.0: ; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3] ; AVX-NEXT: retq %1 = select <2 x i1> , <2 x i64> %a, <2 x i64> %b ret <2 x i64> %1 } define <4 x float> @select_of_shuffles_0(<2 x float> %a0, <2 x float> %b0, <2 x float> %a1, <2 x float> %b1) { ; SSE-LABEL: select_of_shuffles_0: ; SSE: # %bb.0: ; SSE-NEXT: movlhps {{.*#+}} xmm0 = xmm0[0],xmm2[0] ; SSE-NEXT: movlhps {{.*#+}} xmm1 = xmm1[0],xmm3[0] ; SSE-NEXT: subps %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX-LABEL: select_of_shuffles_0: ; AVX: # %bb.0: ; AVX-NEXT: vmovlhps {{.*#+}} xmm0 = xmm0[0],xmm2[0] ; AVX-NEXT: vmovlhps {{.*#+}} xmm1 = xmm1[0],xmm3[0] ; AVX-NEXT: vsubps %xmm1, %xmm0, %xmm0 ; AVX-NEXT: retq %1 = shufflevector <2 x float> %a0, <2 x float> undef, <4 x i32> %2 = shufflevector <2 x float> %a1, <2 x float> undef, <4 x i32> %3 = select <4 x i1> , <4 x float> %2, <4 x float> %1 %4 = shufflevector <2 x float> %b0, <2 x float> undef, <4 x i32> %5 = shufflevector <2 x float> %b1, <2 x float> undef, <4 x i32> %6 = select <4 x i1> , <4 x float> %5, <4 x float> %4 %7 = fsub <4 x float> %3, %6 ret <4 x float> %7 } ; PR20677 define <16 x double> @select_illegal(<16 x double> %a, <16 x double> %b) { ; SSE-LABEL: select_illegal: ; SSE: # %bb.0: ; SSE-NEXT: movq %rdi, %rax ; SSE-NEXT: movaps {{[0-9]+}}(%rsp), %xmm4 ; SSE-NEXT: movaps {{[0-9]+}}(%rsp), %xmm5 ; SSE-NEXT: movaps {{[0-9]+}}(%rsp), %xmm6 ; SSE-NEXT: movaps {{[0-9]+}}(%rsp), %xmm7 ; SSE-NEXT: movaps %xmm7, 112(%rdi) ; SSE-NEXT: movaps %xmm6, 96(%rdi) ; SSE-NEXT: movaps %xmm5, 80(%rdi) ; SSE-NEXT: movaps %xmm4, 64(%rdi) ; SSE-NEXT: movaps %xmm3, 48(%rdi) ; SSE-NEXT: movaps %xmm2, 32(%rdi) ; SSE-NEXT: movaps %xmm1, 16(%rdi) ; SSE-NEXT: movaps %xmm0, (%rdi) ; SSE-NEXT: retq ; ; AVX-LABEL: select_illegal: ; AVX: # %bb.0: ; AVX-NEXT: vmovaps %ymm7, %ymm3 ; AVX-NEXT: vmovaps %ymm6, %ymm2 ; AVX-NEXT: retq %sel = select <16 x i1> , <16 x double> %a, <16 x double> %b ret <16 x double> %sel } ; Make sure we can optimize the condition MSB when it is used by 2 selects. ; The v2i1 here will be passed as v2i64 and we will emit a sign_extend_inreg to fill the upper bits. ; We should be able to remove the sra from the sign_extend_inreg to leave only shl. define <2 x i64> @shrunkblend_2uses(<2 x i1> %cond, <2 x i64> %a, <2 x i64> %b, <2 x i64> %c, <2 x i64> %d) { ; SSE2-LABEL: shrunkblend_2uses: ; SSE2: # %bb.0: ; SSE2-NEXT: psllq $63, %xmm0 ; SSE2-NEXT: psrad $31, %xmm0 ; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,3,3] ; SSE2-NEXT: movdqa %xmm0, %xmm5 ; SSE2-NEXT: pandn %xmm2, %xmm5 ; SSE2-NEXT: pand %xmm0, %xmm1 ; SSE2-NEXT: por %xmm1, %xmm5 ; SSE2-NEXT: pand %xmm0, %xmm3 ; SSE2-NEXT: pandn %xmm4, %xmm0 ; SSE2-NEXT: por %xmm3, %xmm0 ; SSE2-NEXT: paddq %xmm5, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: shrunkblend_2uses: ; SSE41: # %bb.0: ; SSE41-NEXT: psllq $63, %xmm0 ; SSE41-NEXT: blendvpd %xmm0, %xmm1, %xmm2 ; SSE41-NEXT: blendvpd %xmm0, %xmm3, %xmm4 ; SSE41-NEXT: paddq %xmm2, %xmm4 ; SSE41-NEXT: movdqa %xmm4, %xmm0 ; SSE41-NEXT: retq ; ; AVX-LABEL: shrunkblend_2uses: ; AVX: # %bb.0: ; AVX-NEXT: vpsllq $63, %xmm0, %xmm0 ; AVX-NEXT: vblendvpd %xmm0, %xmm1, %xmm2, %xmm1 ; AVX-NEXT: vblendvpd %xmm0, %xmm3, %xmm4, %xmm0 ; AVX-NEXT: vpaddq %xmm0, %xmm1, %xmm0 ; AVX-NEXT: retq %x = select <2 x i1> %cond, <2 x i64> %a, <2 x i64> %b %y = select <2 x i1> %cond, <2 x i64> %c, <2 x i64> %d %z = add <2 x i64> %x, %y ret <2 x i64> %z } ; Similar to above, but condition has a use that isn't a condition of a vselect so we can't optimize. define <2 x i64> @shrunkblend_nonvselectuse(<2 x i1> %cond, <2 x i64> %a, <2 x i64> %b, <2 x i64> %c, <2 x i64> %d) { ; SSE2-LABEL: shrunkblend_nonvselectuse: ; SSE2: # %bb.0: ; SSE2-NEXT: psllq $63, %xmm0 ; SSE2-NEXT: psrad $31, %xmm0 ; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm0[1,1,3,3] ; SSE2-NEXT: movdqa %xmm3, %xmm0 ; SSE2-NEXT: pandn %xmm2, %xmm0 ; SSE2-NEXT: pand %xmm3, %xmm1 ; SSE2-NEXT: por %xmm1, %xmm0 ; SSE2-NEXT: paddq %xmm3, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: shrunkblend_nonvselectuse: ; SSE41: # %bb.0: ; SSE41-NEXT: psllq $63, %xmm0 ; SSE41-NEXT: psrad $31, %xmm0 ; SSE41-NEXT: blendvpd %xmm0, %xmm1, %xmm2 ; SSE41-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,3,3] ; SSE41-NEXT: paddq %xmm2, %xmm0 ; SSE41-NEXT: retq ; ; AVX-LABEL: shrunkblend_nonvselectuse: ; AVX: # %bb.0: ; AVX-NEXT: vpsllq $63, %xmm0, %xmm0 ; AVX-NEXT: vblendvpd %xmm0, %xmm1, %xmm2, %xmm1 ; AVX-NEXT: vxorpd %xmm2, %xmm2, %xmm2 ; AVX-NEXT: vpcmpgtq %xmm0, %xmm2, %xmm0 ; AVX-NEXT: vpaddq %xmm0, %xmm1, %xmm0 ; AVX-NEXT: retq %x = select <2 x i1> %cond, <2 x i64> %a, <2 x i64> %b %y = sext <2 x i1> %cond to <2 x i64> %z = add <2 x i64> %x, %y ret <2 x i64> %z } ; This turns into a SHRUNKBLEND with SSE4 or later, and via ; late shuffle magic, both sides of the blend are the same ; value. If that is not simplified before isel, it can fail ; to match (crash). define <2 x i32> @simplify_select(i32 %x, <2 x i1> %z) { ; SSE2-LABEL: simplify_select: ; SSE2: # %bb.0: ; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3] ; SSE2-NEXT: pslld $31, %xmm0 ; SSE2-NEXT: psrad $31, %xmm0 ; SSE2-NEXT: movd %edi, %xmm1 ; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,0,1,1] ; SSE2-NEXT: por %xmm1, %xmm2 ; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm2[1,3] ; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[2,0],xmm2[1,1] ; SSE2-NEXT: pand %xmm0, %xmm2 ; SSE2-NEXT: pandn %xmm1, %xmm0 ; SSE2-NEXT: por %xmm2, %xmm0 ; SSE2-NEXT: retq ; ; SSE41-LABEL: simplify_select: ; SSE41: # %bb.0: ; SSE41-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3] ; SSE41-NEXT: pslld $31, %xmm0 ; SSE41-NEXT: movd %edi, %xmm1 ; SSE41-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,0,1,1] ; SSE41-NEXT: por %xmm1, %xmm2 ; SSE41-NEXT: pshufd {{.*#+}} xmm1 = xmm2[1,1,1,1] ; SSE41-NEXT: pinsrd $1, %edi, %xmm1 ; SSE41-NEXT: blendvps %xmm0, %xmm2, %xmm1 ; SSE41-NEXT: movaps %xmm1, %xmm0 ; SSE41-NEXT: retq ; ; AVX-LABEL: simplify_select: ; AVX: # %bb.0: ; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3] ; AVX-NEXT: vpslld $31, %xmm0, %xmm0 ; AVX-NEXT: vmovd %edi, %xmm1 ; AVX-NEXT: vpshufd {{.*#+}} xmm2 = xmm1[1,0,1,1] ; AVX-NEXT: vpor %xmm1, %xmm2, %xmm1 ; AVX-NEXT: vpshufd {{.*#+}} xmm2 = xmm1[1,1,1,1] ; AVX-NEXT: vpinsrd $1, %edi, %xmm2, %xmm2 ; AVX-NEXT: vblendvps %xmm0, %xmm1, %xmm2, %xmm0 ; AVX-NEXT: retq %a = insertelement <2 x i32> , i32 %x, i32 1 %b = insertelement <2 x i32> , i32 %x, i32 0 %y = or <2 x i32> %a, %b %p16 = extractelement <2 x i32> %y, i32 1 %p17 = insertelement <2 x i32> undef, i32 %p16, i32 0 %p18 = insertelement <2 x i32> %p17, i32 %x, i32 1 %r = select <2 x i1> %z, <2 x i32> %y, <2 x i32> %p18 ret <2 x i32> %r } ; Test to make sure we don't try to insert a new setcc to swap the operands ; of select with all zeros LHS if the setcc has additional users. define void @vselect_allzeros_LHS_multiple_use_setcc(<4 x i32> %x, <4 x i32> %y, <4 x i32> %z, <4 x i32>* %p1, <4 x i32>* %p2) { ; SSE-LABEL: vselect_allzeros_LHS_multiple_use_setcc: ; SSE: # %bb.0: ; SSE-NEXT: movdqa {{.*#+}} xmm3 = [1,2,4,8] ; SSE-NEXT: pand %xmm3, %xmm0 ; SSE-NEXT: pcmpeqd %xmm3, %xmm0 ; SSE-NEXT: movdqa %xmm0, %xmm3 ; SSE-NEXT: pandn %xmm1, %xmm3 ; SSE-NEXT: pand %xmm2, %xmm0 ; SSE-NEXT: movdqa %xmm3, (%rdi) ; SSE-NEXT: movdqa %xmm0, (%rsi) ; SSE-NEXT: retq ; ; AVX-LABEL: vselect_allzeros_LHS_multiple_use_setcc: ; AVX: # %bb.0: ; AVX-NEXT: vmovdqa {{.*#+}} xmm3 = [1,2,4,8] ; AVX-NEXT: vpand %xmm3, %xmm0, %xmm0 ; AVX-NEXT: vpcmpeqd %xmm3, %xmm0, %xmm0 ; AVX-NEXT: vpandn %xmm1, %xmm0, %xmm1 ; AVX-NEXT: vpand %xmm2, %xmm0, %xmm0 ; AVX-NEXT: vmovdqa %xmm1, (%rdi) ; AVX-NEXT: vmovdqa %xmm0, (%rsi) ; AVX-NEXT: retq %and = and <4 x i32> %x, %cond = icmp ne <4 x i32> %and, zeroinitializer %sel1 = select <4 x i1> %cond, <4 x i32> zeroinitializer, <4 x i32> %y %sel2 = select <4 x i1> %cond, <4 x i32> %z, <4 x i32> zeroinitializer store <4 x i32> %sel1, <4 x i32>* %p1 store <4 x i32> %sel2, <4 x i32>* %p2 ret void } ; This test case previously crashed after r363802, r363850, and r363856 due ; any_extend_vector_inreg not being handled by the X86 backend. define i64 @vselect_any_extend_vector_inreg_crash(<8 x i8>* %x) { ; SSE-LABEL: vselect_any_extend_vector_inreg_crash: ; SSE: # %bb.0: ; SSE-NEXT: movq {{.*#+}} xmm0 = mem[0],zero ; SSE-NEXT: pcmpeqb {{.*}}(%rip), %xmm0 ; SSE-NEXT: movq %xmm0, %rax ; SSE-NEXT: andl $1, %eax ; SSE-NEXT: shlq $15, %rax ; SSE-NEXT: retq ; ; AVX-LABEL: vselect_any_extend_vector_inreg_crash: ; AVX: # %bb.0: ; AVX-NEXT: vmovq {{.*#+}} xmm0 = mem[0],zero ; AVX-NEXT: vpcmpeqb {{.*}}(%rip), %xmm0, %xmm0 ; AVX-NEXT: vmovq %xmm0, %rax ; AVX-NEXT: andl $1, %eax ; AVX-NEXT: shlq $15, %rax ; AVX-NEXT: retq 0: %1 = load <8 x i8>, <8 x i8>* %x %2 = icmp eq <8 x i8> %1, %3 = select <8 x i1> %2, <8 x i64> , <8 x i64> zeroinitializer %4 = extractelement <8 x i64> %3, i32 0 ret i64 %4 }