1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=CHECK --check-prefix=X32 3; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=CHECK --check-prefix=X64 4 5; When extracting multiple consecutive elements from a larger 6; vector into a smaller one, do it efficiently. We should use 7; an EXTRACT_SUBVECTOR node internally rather than a bunch of 8; single element extractions. 9 10; Extracting the low elements only requires using the right kind of store. 11define void @low_v8f32_to_v4f32(<8 x float> %v, <4 x float>* %ptr) { 12; X32-LABEL: low_v8f32_to_v4f32: 13; X32: # BB#0: 14; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 15; X32-NEXT: vmovaps %xmm0, (%eax) 16; X32-NEXT: vzeroupper 17; X32-NEXT: retl 18; 19; X64-LABEL: low_v8f32_to_v4f32: 20; X64: # BB#0: 21; X64-NEXT: vmovaps %xmm0, (%rdi) 22; X64-NEXT: vzeroupper 23; X64-NEXT: retq 24 %ext0 = extractelement <8 x float> %v, i32 0 25 %ext1 = extractelement <8 x float> %v, i32 1 26 %ext2 = extractelement <8 x float> %v, i32 2 27 %ext3 = extractelement <8 x float> %v, i32 3 28 %ins0 = insertelement <4 x float> undef, float %ext0, i32 0 29 %ins1 = insertelement <4 x float> %ins0, float %ext1, i32 1 30 %ins2 = insertelement <4 x float> %ins1, float %ext2, i32 2 31 %ins3 = insertelement <4 x float> %ins2, float %ext3, i32 3 32 store <4 x float> %ins3, <4 x float>* %ptr, align 16 33 ret void 34} 35 36; Extracting the high elements requires just one AVX instruction. 37define void @high_v8f32_to_v4f32(<8 x float> %v, <4 x float>* %ptr) { 38; X32-LABEL: high_v8f32_to_v4f32: 39; X32: # BB#0: 40; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 41; X32-NEXT: vextractf128 $1, %ymm0, (%eax) 42; X32-NEXT: vzeroupper 43; X32-NEXT: retl 44; 45; X64-LABEL: high_v8f32_to_v4f32: 46; X64: # BB#0: 47; X64-NEXT: vextractf128 $1, %ymm0, (%rdi) 48; X64-NEXT: vzeroupper 49; X64-NEXT: retq 50 %ext0 = extractelement <8 x float> %v, i32 4 51 %ext1 = extractelement <8 x float> %v, i32 5 52 %ext2 = extractelement <8 x float> %v, i32 6 53 %ext3 = extractelement <8 x float> %v, i32 7 54 %ins0 = insertelement <4 x float> undef, float %ext0, i32 0 55 %ins1 = insertelement <4 x float> %ins0, float %ext1, i32 1 56 %ins2 = insertelement <4 x float> %ins1, float %ext2, i32 2 57 %ins3 = insertelement <4 x float> %ins2, float %ext3, i32 3 58 store <4 x float> %ins3, <4 x float>* %ptr, align 16 59 ret void 60} 61 62; Make sure element type doesn't alter the codegen. Note that 63; if we were actually using the vector in this function and 64; have AVX2, we should generate vextracti128 (the int version). 65define void @high_v8i32_to_v4i32(<8 x i32> %v, <4 x i32>* %ptr) { 66; X32-LABEL: high_v8i32_to_v4i32: 67; X32: # BB#0: 68; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 69; X32-NEXT: vextractf128 $1, %ymm0, (%eax) 70; X32-NEXT: vzeroupper 71; X32-NEXT: retl 72; 73; X64-LABEL: high_v8i32_to_v4i32: 74; X64: # BB#0: 75; X64-NEXT: vextractf128 $1, %ymm0, (%rdi) 76; X64-NEXT: vzeroupper 77; X64-NEXT: retq 78 %ext0 = extractelement <8 x i32> %v, i32 4 79 %ext1 = extractelement <8 x i32> %v, i32 5 80 %ext2 = extractelement <8 x i32> %v, i32 6 81 %ext3 = extractelement <8 x i32> %v, i32 7 82 %ins0 = insertelement <4 x i32> undef, i32 %ext0, i32 0 83 %ins1 = insertelement <4 x i32> %ins0, i32 %ext1, i32 1 84 %ins2 = insertelement <4 x i32> %ins1, i32 %ext2, i32 2 85 %ins3 = insertelement <4 x i32> %ins2, i32 %ext3, i32 3 86 store <4 x i32> %ins3, <4 x i32>* %ptr, align 16 87 ret void 88} 89 90; Make sure that element size doesn't alter the codegen. 91define void @high_v4f64_to_v2f64(<4 x double> %v, <2 x double>* %ptr) { 92; X32-LABEL: high_v4f64_to_v2f64: 93; X32: # BB#0: 94; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 95; X32-NEXT: vextractf128 $1, %ymm0, (%eax) 96; X32-NEXT: vzeroupper 97; X32-NEXT: retl 98; 99; X64-LABEL: high_v4f64_to_v2f64: 100; X64: # BB#0: 101; X64-NEXT: vextractf128 $1, %ymm0, (%rdi) 102; X64-NEXT: vzeroupper 103; X64-NEXT: retq 104 %ext0 = extractelement <4 x double> %v, i32 2 105 %ext1 = extractelement <4 x double> %v, i32 3 106 %ins0 = insertelement <2 x double> undef, double %ext0, i32 0 107 %ins1 = insertelement <2 x double> %ins0, double %ext1, i32 1 108 store <2 x double> %ins1, <2 x double>* %ptr, align 16 109 ret void 110} 111 112; PR25320 Make sure that a widened (possibly legalized) vector correctly zero-extends upper elements. 113; FIXME - Ideally these should just call VMOVD/VMOVQ/VMOVSS/VMOVSD 114 115define void @legal_vzmovl_2i32_8i32(<2 x i32>* %in, <8 x i32>* %out) { 116; X32-LABEL: legal_vzmovl_2i32_8i32: 117; X32: # BB#0: 118; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 119; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx 120; X32-NEXT: vpmovzxdq {{.*#+}} xmm0 = mem[0],zero,mem[1],zero 121; X32-NEXT: vxorps %ymm1, %ymm1, %ymm1 122; X32-NEXT: vblendps {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3,4,5,6,7] 123; X32-NEXT: vmovaps %ymm0, (%eax) 124; X32-NEXT: vzeroupper 125; X32-NEXT: retl 126; 127; X64-LABEL: legal_vzmovl_2i32_8i32: 128; X64: # BB#0: 129; X64-NEXT: vpmovzxdq {{.*#+}} xmm0 = mem[0],zero,mem[1],zero 130; X64-NEXT: vxorps %ymm1, %ymm1, %ymm1 131; X64-NEXT: vblendps {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3,4,5,6,7] 132; X64-NEXT: vmovaps %ymm0, (%rsi) 133; X64-NEXT: vzeroupper 134; X64-NEXT: retq 135 %ld = load <2 x i32>, <2 x i32>* %in, align 8 136 %ext = extractelement <2 x i32> %ld, i64 0 137 %ins = insertelement <8 x i32> <i32 undef, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0>, i32 %ext, i64 0 138 store <8 x i32> %ins, <8 x i32>* %out, align 32 139 ret void 140} 141 142define void @legal_vzmovl_2i64_4i64(<2 x i64>* %in, <4 x i64>* %out) { 143; X32-LABEL: legal_vzmovl_2i64_4i64: 144; X32: # BB#0: 145; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 146; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx 147; X32-NEXT: vmovupd (%ecx), %xmm0 148; X32-NEXT: vxorpd %ymm1, %ymm1, %ymm1 149; X32-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3] 150; X32-NEXT: vmovapd %ymm0, (%eax) 151; X32-NEXT: vzeroupper 152; X32-NEXT: retl 153; 154; X64-LABEL: legal_vzmovl_2i64_4i64: 155; X64: # BB#0: 156; X64-NEXT: vmovupd (%rdi), %xmm0 157; X64-NEXT: vxorpd %ymm1, %ymm1, %ymm1 158; X64-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3] 159; X64-NEXT: vmovapd %ymm0, (%rsi) 160; X64-NEXT: vzeroupper 161; X64-NEXT: retq 162 %ld = load <2 x i64>, <2 x i64>* %in, align 8 163 %ext = extractelement <2 x i64> %ld, i64 0 164 %ins = insertelement <4 x i64> <i64 undef, i64 0, i64 0, i64 0>, i64 %ext, i64 0 165 store <4 x i64> %ins, <4 x i64>* %out, align 32 166 ret void 167} 168 169define void @legal_vzmovl_2f32_8f32(<2 x float>* %in, <8 x float>* %out) { 170; X32-LABEL: legal_vzmovl_2f32_8f32: 171; X32: # BB#0: 172; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 173; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx 174; X32-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero 175; X32-NEXT: vmovaps %ymm0, (%eax) 176; X32-NEXT: vzeroupper 177; X32-NEXT: retl 178; 179; X64-LABEL: legal_vzmovl_2f32_8f32: 180; X64: # BB#0: 181; X64-NEXT: vmovq {{.*#+}} xmm0 = mem[0],zero 182; X64-NEXT: vxorps %ymm1, %ymm1, %ymm1 183; X64-NEXT: vblendps {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3,4,5,6,7] 184; X64-NEXT: vmovaps %ymm0, (%rsi) 185; X64-NEXT: vzeroupper 186; X64-NEXT: retq 187 %ld = load <2 x float>, <2 x float>* %in, align 8 188 %ext = extractelement <2 x float> %ld, i64 0 189 %ins = insertelement <8 x float> <float undef, float 0.0, float 0.0, float 0.0, float 0.0, float 0.0, float 0.0, float 0.0>, float %ext, i64 0 190 store <8 x float> %ins, <8 x float>* %out, align 32 191 ret void 192} 193 194define void @legal_vzmovl_2f64_4f64(<2 x double>* %in, <4 x double>* %out) { 195; X32-LABEL: legal_vzmovl_2f64_4f64: 196; X32: # BB#0: 197; X32-NEXT: movl {{[0-9]+}}(%esp), %eax 198; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx 199; X32-NEXT: vmovupd (%ecx), %xmm0 200; X32-NEXT: vxorpd %ymm1, %ymm1, %ymm1 201; X32-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3] 202; X32-NEXT: vmovapd %ymm0, (%eax) 203; X32-NEXT: vzeroupper 204; X32-NEXT: retl 205; 206; X64-LABEL: legal_vzmovl_2f64_4f64: 207; X64: # BB#0: 208; X64-NEXT: vmovupd (%rdi), %xmm0 209; X64-NEXT: vxorpd %ymm1, %ymm1, %ymm1 210; X64-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3] 211; X64-NEXT: vmovapd %ymm0, (%rsi) 212; X64-NEXT: vzeroupper 213; X64-NEXT: retq 214 %ld = load <2 x double>, <2 x double>* %in, align 8 215 %ext = extractelement <2 x double> %ld, i64 0 216 %ins = insertelement <4 x double> <double undef, double 0.0, double 0.0, double 0.0>, double %ext, i64 0 217 store <4 x double> %ins, <4 x double>* %out, align 32 218 ret void 219} 220