|  | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | 
|  | ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s | 
|  |  | 
|  | define <4 x double> @addpd256(<4 x double> %y, <4 x double> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: addpd256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vaddpd %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %add.i = fadd <4 x double> %x, %y | 
|  | ret <4 x double> %add.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @addpd256fold(<4 x double> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: addpd256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vaddpd {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %add.i = fadd <4 x double> %y, <double 4.500000e+00, double 3.400000e+00, double 2.300000e+00, double 1.200000e+00> | 
|  | ret <4 x double> %add.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @addps256(<8 x float> %y, <8 x float> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: addps256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vaddps %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %add.i = fadd <8 x float> %x, %y | 
|  | ret <8 x float> %add.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @addps256fold(<8 x float> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: addps256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vaddps {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %add.i = fadd <8 x float> %y, <float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000, float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000> | 
|  | ret <8 x float> %add.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @subpd256(<4 x double> %y, <4 x double> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: subpd256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsubpd %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %sub.i = fsub <4 x double> %x, %y | 
|  | ret <4 x double> %sub.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @subpd256fold(<4 x double> %y, <4 x double>* nocapture %x) nounwind uwtable readonly ssp { | 
|  | ; CHECK-LABEL: subpd256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsubpd (%rdi), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %tmp2 = load <4 x double>, <4 x double>* %x, align 32 | 
|  | %sub.i = fsub <4 x double> %y, %tmp2 | 
|  | ret <4 x double> %sub.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @subps256(<8 x float> %y, <8 x float> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: subps256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsubps %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %sub.i = fsub <8 x float> %x, %y | 
|  | ret <8 x float> %sub.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @subps256fold(<8 x float> %y, <8 x float>* nocapture %x) nounwind uwtable readonly ssp { | 
|  | ; CHECK-LABEL: subps256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsubps (%rdi), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %tmp2 = load <8 x float>, <8 x float>* %x, align 32 | 
|  | %sub.i = fsub <8 x float> %y, %tmp2 | 
|  | ret <8 x float> %sub.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @mulpd256(<4 x double> %y, <4 x double> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: mulpd256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vmulpd %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %mul.i = fmul <4 x double> %x, %y | 
|  | ret <4 x double> %mul.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @mulpd256fold(<4 x double> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: mulpd256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vmulpd {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %mul.i = fmul <4 x double> %y, <double 4.500000e+00, double 3.400000e+00, double 2.300000e+00, double 1.200000e+00> | 
|  | ret <4 x double> %mul.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @mulps256(<8 x float> %y, <8 x float> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: mulps256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vmulps %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %mul.i = fmul <8 x float> %x, %y | 
|  | ret <8 x float> %mul.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @mulps256fold(<8 x float> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: mulps256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vmulps {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %mul.i = fmul <8 x float> %y, <float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000, float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000> | 
|  | ret <8 x float> %mul.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @divpd256(<4 x double> %y, <4 x double> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: divpd256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vdivpd %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %div.i = fdiv <4 x double> %x, %y | 
|  | ret <4 x double> %div.i | 
|  | } | 
|  |  | 
|  | define <4 x double> @divpd256fold(<4 x double> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: divpd256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vdivpd {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %div.i = fdiv <4 x double> %y, <double 4.500000e+00, double 3.400000e+00, double 2.300000e+00, double 1.200000e+00> | 
|  | ret <4 x double> %div.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @divps256(<8 x float> %y, <8 x float> %x) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: divps256: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vdivps %ymm0, %ymm1, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %div.i = fdiv <8 x float> %x, %y | 
|  | ret <8 x float> %div.i | 
|  | } | 
|  |  | 
|  | define <8 x float> @divps256fold(<8 x float> %y) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: divps256fold: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vdivps {{.*}}(%rip), %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %div.i = fdiv <8 x float> %y, <float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000, float 4.500000e+00, float 0x400B333340000000, float 0x4002666660000000, float 0x3FF3333340000000> | 
|  | ret <8 x float> %div.i | 
|  | } | 
|  |  | 
|  | define float @sqrtA(float %a) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: sqrtA: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsqrtss %xmm0, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %conv1 = tail call float @sqrtf(float %a) nounwind readnone | 
|  | ret float %conv1 | 
|  | } | 
|  |  | 
|  | declare double @sqrt(double) readnone | 
|  |  | 
|  | define double @sqrtB(double %a) nounwind uwtable readnone ssp { | 
|  | ; CHECK-LABEL: sqrtB: | 
|  | ; CHECK:       ## %bb.0: ## %entry | 
|  | ; CHECK-NEXT:    vsqrtsd %xmm0, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | entry: | 
|  | %call = tail call double @sqrt(double %a) nounwind readnone | 
|  | ret double %call | 
|  | } | 
|  |  | 
|  | declare float @sqrtf(float) readnone | 
|  |  | 
|  |  | 
|  | define <4 x i64> @vpaddq(<4 x i64> %i, <4 x i64> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpaddq: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpaddq %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpaddq %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = add <4 x i64> %i, %j | 
|  | ret <4 x i64> %x | 
|  | } | 
|  |  | 
|  | define <8 x i32> @vpaddd(<8 x i32> %i, <8 x i32> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpaddd: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpaddd %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpaddd %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = add <8 x i32> %i, %j | 
|  | ret <8 x i32> %x | 
|  | } | 
|  |  | 
|  | define <16 x i16> @vpaddw(<16 x i16> %i, <16 x i16> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpaddw: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpaddw %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpaddw %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = add <16 x i16> %i, %j | 
|  | ret <16 x i16> %x | 
|  | } | 
|  |  | 
|  | define <32 x i8> @vpaddb(<32 x i8> %i, <32 x i8> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpaddb: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpaddb %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpaddb %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = add <32 x i8> %i, %j | 
|  | ret <32 x i8> %x | 
|  | } | 
|  |  | 
|  | define <4 x i64> @vpsubq(<4 x i64> %i, <4 x i64> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpsubq: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpsubq %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpsubq %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = sub <4 x i64> %i, %j | 
|  | ret <4 x i64> %x | 
|  | } | 
|  |  | 
|  | define <8 x i32> @vpsubd(<8 x i32> %i, <8 x i32> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpsubd: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpsubd %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpsubd %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = sub <8 x i32> %i, %j | 
|  | ret <8 x i32> %x | 
|  | } | 
|  |  | 
|  | define <16 x i16> @vpsubw(<16 x i16> %i, <16 x i16> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpsubw: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpsubw %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpsubw %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = sub <16 x i16> %i, %j | 
|  | ret <16 x i16> %x | 
|  | } | 
|  |  | 
|  | define <32 x i8> @vpsubb(<32 x i8> %i, <32 x i8> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpsubb: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpsubb %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpsubb %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = sub <32 x i8> %i, %j | 
|  | ret <32 x i8> %x | 
|  | } | 
|  |  | 
|  | define <8 x i32> @vpmulld(<8 x i32> %i, <8 x i32> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpmulld: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpmulld %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpmulld %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = mul <8 x i32> %i, %j | 
|  | ret <8 x i32> %x | 
|  | } | 
|  |  | 
|  | define <16 x i16> @vpmullw(<16 x i16> %i, <16 x i16> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: vpmullw: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpmullw %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpmullw %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = mul <16 x i16> %i, %j | 
|  | ret <16 x i16> %x | 
|  | } | 
|  |  | 
|  | define <4 x i64> @mul_v4i64(<4 x i64> %i, <4 x i64> %j) nounwind readnone { | 
|  | ; CHECK-LABEL: mul_v4i64: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm1, %xmm2 | 
|  | ; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpsrlq $32, %xmm3, %xmm4 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm2, %xmm4, %xmm4 | 
|  | ; CHECK-NEXT:    vpsrlq $32, %xmm2, %xmm5 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm5, %xmm3, %xmm5 | 
|  | ; CHECK-NEXT:    vpaddq %xmm4, %xmm5, %xmm4 | 
|  | ; CHECK-NEXT:    vpsllq $32, %xmm4, %xmm4 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm2, %xmm3, %xmm2 | 
|  | ; CHECK-NEXT:    vpaddq %xmm4, %xmm2, %xmm2 | 
|  | ; CHECK-NEXT:    vpsrlq $32, %xmm0, %xmm3 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm1, %xmm3, %xmm3 | 
|  | ; CHECK-NEXT:    vpsrlq $32, %xmm1, %xmm4 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm4, %xmm0, %xmm4 | 
|  | ; CHECK-NEXT:    vpaddq %xmm3, %xmm4, %xmm3 | 
|  | ; CHECK-NEXT:    vpsllq $32, %xmm3, %xmm3 | 
|  | ; CHECK-NEXT:    vpmuludq %xmm1, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vpaddq %xmm3, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x = mul <4 x i64> %i, %j | 
|  | ret <4 x i64> %x | 
|  | } | 
|  |  | 
|  | declare <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float>) nounwind readnone | 
|  |  | 
|  | define <4 x float> @int_sqrt_ss() { | 
|  | ; CHECK-LABEL: int_sqrt_ss: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero | 
|  | ; CHECK-NEXT:    vsqrtss %xmm0, %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %x0 = load float, float addrspace(1)* undef, align 8 | 
|  | %x1 = insertelement <4 x float> undef, float %x0, i32 0 | 
|  | %x2 = call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %x1) nounwind | 
|  | ret <4 x float> %x2 | 
|  | } | 
|  |  | 
|  | define <2 x double> @vector_sqrt_scalar_load(double* %a0) optsize { | 
|  | ; CHECK-LABEL: vector_sqrt_scalar_load: | 
|  | ; CHECK:       ## %bb.0: | 
|  | ; CHECK-NEXT:    vmovsd {{.*#+}} xmm0 = mem[0],zero | 
|  | ; CHECK-NEXT:    vsqrtpd %xmm0, %xmm0 | 
|  | ; CHECK-NEXT:    retq | 
|  | %a1 = load double, double* %a0 | 
|  | %a2 = insertelement <2 x double> undef, double %a1, i32 0 | 
|  | %res = call <2 x double> @llvm.sqrt.v2f64(<2 x double> %a2) ; <<2 x double>> [#uses=1] | 
|  | ret <2 x double> %res | 
|  | } | 
|  | declare <2 x double> @llvm.sqrt.v2f64(<2 x double>) nounwind readnone |