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      1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
      2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -march=x86-64 -mcpu=nehalem | FileCheck %s
      3 
      4 define <4 x float> @a(<4 x float>* %y) nounwind {
      5 ; CHECK-LABEL: a:
      6 ; CHECK:       # BB#0:
      7 ; CHECK-NEXT:    movups (%rdi), %xmm0
      8 ; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,2,1,0]
      9 ; CHECK-NEXT:    retq
     10   %x = load <4 x float>, <4 x float>* %y, align 4
     11   %a = extractelement <4 x float> %x, i32 0
     12   %b = extractelement <4 x float> %x, i32 1
     13   %c = extractelement <4 x float> %x, i32 2
     14   %d = extractelement <4 x float> %x, i32 3
     15   %p = insertelement <4 x float> undef, float %d, i32 0
     16   %q = insertelement <4 x float> %p, float %c, i32 1
     17   %r = insertelement <4 x float> %q, float %b, i32 2
     18   %s = insertelement <4 x float> %r, float %a, i32 3
     19   ret <4 x float> %s
     20 }
     21 
     22 define <4 x float> @b(<4 x float>* %y, <4 x float> %z) nounwind {
     23 ; CHECK-LABEL: b:
     24 ; CHECK:       # BB#0:
     25 ; CHECK-NEXT:    movups (%rdi), %xmm1
     26 ; CHECK-NEXT:    unpckhps {{.*#+}} xmm0 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
     27 ; CHECK-NEXT:    retq
     28   %x = load <4 x float>, <4 x float>* %y, align 4
     29   %a = extractelement <4 x float> %x, i32 2
     30   %b = extractelement <4 x float> %x, i32 3
     31   %c = extractelement <4 x float> %z, i32 2
     32   %d = extractelement <4 x float> %z, i32 3
     33   %p = insertelement <4 x float> undef, float %c, i32 0
     34   %q = insertelement <4 x float> %p, float %a, i32 1
     35   %r = insertelement <4 x float> %q, float %d, i32 2
     36   %s = insertelement <4 x float> %r, float %b, i32 3
     37   ret <4 x float> %s
     38 }
     39 
     40 define <2 x double> @c(<2 x double>* %y) nounwind {
     41 ; CHECK-LABEL: c:
     42 ; CHECK:       # BB#0:
     43 ; CHECK-NEXT:    movupd (%rdi), %xmm0
     44 ; CHECK-NEXT:    shufpd {{.*#+}} xmm0 = xmm0[1,0]
     45 ; CHECK-NEXT:    retq
     46   %x = load <2 x double>, <2 x double>* %y, align 8
     47   %a = extractelement <2 x double> %x, i32 0
     48   %c = extractelement <2 x double> %x, i32 1
     49   %p = insertelement <2 x double> undef, double %c, i32 0
     50   %r = insertelement <2 x double> %p, double %a, i32 1
     51   ret <2 x double> %r
     52 }
     53 
     54 define <2 x double> @d(<2 x double>* %y, <2 x double> %z) nounwind {
     55 ; CHECK-LABEL: d:
     56 ; CHECK:       # BB#0:
     57 ; CHECK-NEXT:    movupd (%rdi), %xmm1
     58 ; CHECK-NEXT:    unpckhpd {{.*#+}} xmm0 = xmm0[1],xmm1[1]
     59 ; CHECK-NEXT:    retq
     60   %x = load <2 x double>, <2 x double>* %y, align 8
     61   %a = extractelement <2 x double> %x, i32 1
     62   %c = extractelement <2 x double> %z, i32 1
     63   %p = insertelement <2 x double> undef, double %c, i32 0
     64   %r = insertelement <2 x double> %p, double %a, i32 1
     65   ret <2 x double> %r
     66 }
     67