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      1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
      2 ; These are tests for SSE3 codegen.
      3 
      4 ; RUN: llc < %s -mtriple=x86_64-apple-darwin9 --mattr=+sse3 | FileCheck %s --check-prefix=X64
      5 
      6 ; Test for v8xi16 lowering where we extract the first element of the vector and
      7 ; placed it in the second element of the result.
      8 
      9 define void @t0(<8 x i16>* %dest, <8 x i16>* %old) nounwind {
     10 ; X64-LABEL: t0:
     11 ; X64:       ## BB#0: ## %entry
     12 ; X64-NEXT:    movl $1, %eax
     13 ; X64-NEXT:    movd %eax, %xmm0
     14 ; X64-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],mem[0],xmm0[1],mem[1],xmm0[2],mem[2],xmm0[3],mem[3]
     15 ; X64-NEXT:    movdqa %xmm0, (%rdi)
     16 ; X64-NEXT:    retq
     17 entry:
     18 	%tmp3 = load <8 x i16>, <8 x i16>* %old
     19 	%tmp6 = shufflevector <8 x i16> %tmp3,
     20                 <8 x i16> < i16 1, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef >,
     21                 <8 x i32> < i32 8, i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef  >
     22 	store <8 x i16> %tmp6, <8 x i16>* %dest
     23 	ret void
     24 }
     25 
     26 define <8 x i16> @t1(<8 x i16>* %A, <8 x i16>* %B) nounwind {
     27 ; X64-LABEL: t1:
     28 ; X64:       ## BB#0:
     29 ; X64-NEXT:    movaps {{.*#+}} xmm0 = [0,65535,65535,65535,65535,65535,65535,65535]
     30 ; X64-NEXT:    movaps %xmm0, %xmm1
     31 ; X64-NEXT:    andnps (%rsi), %xmm1
     32 ; X64-NEXT:    andps (%rdi), %xmm0
     33 ; X64-NEXT:    orps %xmm1, %xmm0
     34 ; X64-NEXT:    retq
     35 	%tmp1 = load <8 x i16>, <8 x i16>* %A
     36 	%tmp2 = load <8 x i16>, <8 x i16>* %B
     37 	%tmp3 = shufflevector <8 x i16> %tmp1, <8 x i16> %tmp2, <8 x i32> < i32 8, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7 >
     38 	ret <8 x i16> %tmp3
     39 
     40 }
     41 
     42 define <8 x i16> @t2(<8 x i16> %A, <8 x i16> %B) nounwind {
     43 ; X64-LABEL: t2:
     44 ; X64:       ## BB#0:
     45 ; X64-NEXT:    movdqa {{.*#+}} xmm2 = [0,65535,65535,0,65535,65535,65535,65535]
     46 ; X64-NEXT:    pand %xmm2, %xmm0
     47 ; X64-NEXT:    pshuflw {{.*#+}} xmm1 = xmm1[1,1,2,1,4,5,6,7]
     48 ; X64-NEXT:    pandn %xmm1, %xmm2
     49 ; X64-NEXT:    por %xmm2, %xmm0
     50 ; X64-NEXT:    retq
     51 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 9, i32 1, i32 2, i32 9, i32 4, i32 5, i32 6, i32 7 >
     52 	ret <8 x i16> %tmp
     53 }
     54 
     55 define <8 x i16> @t3(<8 x i16> %A, <8 x i16> %B) nounwind {
     56 ; X64-LABEL: t3:
     57 ; X64:       ## BB#0:
     58 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,0]
     59 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,5,6,5]
     60 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,0]
     61 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,3,2,1,4,5,6,7]
     62 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,6,5,4]
     63 ; X64-NEXT:    retq
     64 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %A, <8 x i32> < i32 8, i32 3, i32 2, i32 13, i32 7, i32 6, i32 5, i32 4 >
     65 	ret <8 x i16> %tmp
     66 }
     67 
     68 define <8 x i16> @t4(<8 x i16> %A, <8 x i16> %B) nounwind {
     69 ; X64-LABEL: t4:
     70 ; X64:       ## BB#0:
     71 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,1,0,3]
     72 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,6,5,4,7]
     73 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,0]
     74 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,5,7,4,7]
     75 ; X64-NEXT:    retq
     76 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 0, i32 7, i32 2, i32 3, i32 1, i32 5, i32 6, i32 5 >
     77 	ret <8 x i16> %tmp
     78 }
     79 
     80 define <8 x i16> @t5(<8 x i16> %A, <8 x i16> %B) nounwind {
     81 ; X64-LABEL: t5:
     82 ; X64:       ## BB#0:
     83 ; X64-NEXT:    punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
     84 ; X64-NEXT:    movdqa %xmm1, %xmm0
     85 ; X64-NEXT:    retq
     86 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 8, i32 9, i32 0, i32 1, i32 10, i32 11, i32 2, i32 3 >
     87 	ret <8 x i16> %tmp
     88 }
     89 
     90 define <8 x i16> @t6(<8 x i16> %A, <8 x i16> %B) nounwind {
     91 ; X64-LABEL: t6:
     92 ; X64:       ## BB#0:
     93 ; X64-NEXT:    movss {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3]
     94 ; X64-NEXT:    retq
     95 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 8, i32 9, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7 >
     96 	ret <8 x i16> %tmp
     97 }
     98 
     99 define <8 x i16> @t7(<8 x i16> %A, <8 x i16> %B) nounwind {
    100 ; X64-LABEL: t7:
    101 ; X64:       ## BB#0:
    102 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,0,3,2,4,5,6,7]
    103 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,4,7]
    104 ; X64-NEXT:    retq
    105 	%tmp = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 0, i32 0, i32 3, i32 2, i32 4, i32 6, i32 4, i32 7 >
    106 	ret <8 x i16> %tmp
    107 }
    108 
    109 define void @t8(<2 x i64>* %res, <2 x i64>* %A) nounwind {
    110 ; X64-LABEL: t8:
    111 ; X64:       ## BB#0:
    112 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = mem[2,1,0,3,4,5,6,7]
    113 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,6,5,4,7]
    114 ; X64-NEXT:    movdqa %xmm0, (%rdi)
    115 ; X64-NEXT:    retq
    116 	%tmp = load <2 x i64>, <2 x i64>* %A
    117 	%tmp.upgrd.1 = bitcast <2 x i64> %tmp to <8 x i16>
    118 	%tmp0 = extractelement <8 x i16> %tmp.upgrd.1, i32 0
    119 	%tmp1 = extractelement <8 x i16> %tmp.upgrd.1, i32 1
    120 	%tmp2 = extractelement <8 x i16> %tmp.upgrd.1, i32 2
    121 	%tmp3 = extractelement <8 x i16> %tmp.upgrd.1, i32 3
    122 	%tmp4 = extractelement <8 x i16> %tmp.upgrd.1, i32 4
    123 	%tmp5 = extractelement <8 x i16> %tmp.upgrd.1, i32 5
    124 	%tmp6 = extractelement <8 x i16> %tmp.upgrd.1, i32 6
    125 	%tmp7 = extractelement <8 x i16> %tmp.upgrd.1, i32 7
    126 	%tmp8 = insertelement <8 x i16> undef, i16 %tmp2, i32 0
    127 	%tmp9 = insertelement <8 x i16> %tmp8, i16 %tmp1, i32 1
    128 	%tmp10 = insertelement <8 x i16> %tmp9, i16 %tmp0, i32 2
    129 	%tmp11 = insertelement <8 x i16> %tmp10, i16 %tmp3, i32 3
    130 	%tmp12 = insertelement <8 x i16> %tmp11, i16 %tmp6, i32 4
    131 	%tmp13 = insertelement <8 x i16> %tmp12, i16 %tmp5, i32 5
    132 	%tmp14 = insertelement <8 x i16> %tmp13, i16 %tmp4, i32 6
    133 	%tmp15 = insertelement <8 x i16> %tmp14, i16 %tmp7, i32 7
    134 	%tmp15.upgrd.2 = bitcast <8 x i16> %tmp15 to <2 x i64>
    135 	store <2 x i64> %tmp15.upgrd.2, <2 x i64>* %res
    136 	ret void
    137 }
    138 
    139 define void @t9(<4 x float>* %r, <2 x i32>* %A) nounwind {
    140 ; X64-LABEL: t9:
    141 ; X64:       ## BB#0:
    142 ; X64-NEXT:    movapd (%rdi), %xmm0
    143 ; X64-NEXT:    movhpd (%rsi), %xmm0
    144 ; X64-NEXT:    movapd %xmm0, (%rdi)
    145 ; X64-NEXT:    retq
    146 	%tmp = load <4 x float>, <4 x float>* %r
    147 	%tmp.upgrd.3 = bitcast <2 x i32>* %A to double*
    148 	%tmp.upgrd.4 = load double, double* %tmp.upgrd.3
    149 	%tmp.upgrd.5 = insertelement <2 x double> undef, double %tmp.upgrd.4, i32 0
    150 	%tmp5 = insertelement <2 x double> %tmp.upgrd.5, double undef, i32 1
    151 	%tmp6 = bitcast <2 x double> %tmp5 to <4 x float>
    152 	%tmp.upgrd.6 = extractelement <4 x float> %tmp, i32 0
    153 	%tmp7 = extractelement <4 x float> %tmp, i32 1
    154 	%tmp8 = extractelement <4 x float> %tmp6, i32 0
    155 	%tmp9 = extractelement <4 x float> %tmp6, i32 1
    156 	%tmp10 = insertelement <4 x float> undef, float %tmp.upgrd.6, i32 0
    157 	%tmp11 = insertelement <4 x float> %tmp10, float %tmp7, i32 1
    158 	%tmp12 = insertelement <4 x float> %tmp11, float %tmp8, i32 2
    159 	%tmp13 = insertelement <4 x float> %tmp12, float %tmp9, i32 3
    160 	store <4 x float> %tmp13, <4 x float>* %r
    161 	ret void
    162 }
    163 
    164 
    165 
    166 ; FIXME: This testcase produces icky code. It can be made much better!
    167 ; PR2585
    168 
    169 @g1 = external constant <4 x i32>
    170 @g2 = external constant <4 x i16>
    171 
    172 define void @t10() nounwind {
    173 ; X64-LABEL: t10:
    174 ; X64:       ## BB#0:
    175 ; X64-NEXT:    movq _g1@{{.*}}(%rip), %rax
    176 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = mem[0,2,2,3,4,5,6,7]
    177 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,6,7]
    178 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
    179 ; X64-NEXT:    movq _g2@{{.*}}(%rip), %rax
    180 ; X64-NEXT:    movq %xmm0, (%rax)
    181 ; X64-NEXT:    retq
    182   load <4 x i32>, <4 x i32>* @g1, align 16
    183   bitcast <4 x i32> %1 to <8 x i16>
    184   shufflevector <8 x i16> %2, <8 x i16> undef, <8 x i32> < i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef >
    185   bitcast <8 x i16> %3 to <2 x i64>
    186   extractelement <2 x i64> %4, i32 0
    187   bitcast i64 %5 to <4 x i16>
    188   store <4 x i16> %6, <4 x i16>* @g2, align 8
    189   ret void
    190 }
    191 
    192 ; Pack various elements via shuffles.
    193 define <8 x i16> @t11(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    194 ; X64-LABEL: t11:
    195 ; X64:       ## BB#0: ## %entry
    196 ; X64-NEXT:    psrld $16, %xmm0
    197 ; X64-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
    198 ; X64-NEXT:    retq
    199 entry:
    200 	%tmp7 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 1, i32 8, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef , i32 undef >
    201 	ret <8 x i16> %tmp7
    202 
    203 }
    204 
    205 define <8 x i16> @t12(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    206 ; X64-LABEL: t12:
    207 ; X64:       ## BB#0: ## %entry
    208 ; X64-NEXT:    punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
    209 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,2,2,3,4,5,6,7]
    210 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,6,7,6,7]
    211 ; X64-NEXT:    retq
    212 entry:
    213 	%tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 0, i32 1, i32 undef, i32 undef, i32 3, i32 11, i32 undef , i32 undef >
    214 	ret <8 x i16> %tmp9
    215 
    216 }
    217 
    218 define <8 x i16> @t13(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    219 ; X64-LABEL: t13:
    220 ; X64:       ## BB#0: ## %entry
    221 ; X64-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1],xmm1[2],xmm0[2],xmm1[3],xmm0[3]
    222 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = xmm1[0,2,2,3,4,5,6,7]
    223 ; X64-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,6,7,6,7]
    224 ; X64-NEXT:    retq
    225 entry:
    226 	%tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 8, i32 9, i32 undef, i32 undef, i32 11, i32 3, i32 undef , i32 undef >
    227 	ret <8 x i16> %tmp9
    228 }
    229 
    230 define <8 x i16> @t14(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    231 ; X64-LABEL: t14:
    232 ; X64:       ## BB#0: ## %entry
    233 ; X64-NEXT:    psrlq $16, %xmm0
    234 ; X64-NEXT:    punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
    235 ; X64-NEXT:    movdqa %xmm1, %xmm0
    236 ; X64-NEXT:    retq
    237 entry:
    238 	%tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 8, i32 9, i32 undef, i32 undef, i32 undef, i32 2, i32 undef , i32 undef >
    239 	ret <8 x i16> %tmp9
    240 }
    241 
    242 ; FIXME: t15 is worse off from disabling of scheduler 2-address hack.
    243 define <8 x i16> @t15(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    244 ; X64-LABEL: t15:
    245 ; X64:       ## BB#0: ## %entry
    246 ; X64-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,2,3]
    247 ; X64-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,1,1,2,4,5,6,7]
    248 ; X64-NEXT:    punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
    249 ; X64-NEXT:    retq
    250 entry:
    251   %tmp8 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 undef, i32 undef, i32 7, i32 2, i32 8, i32 undef, i32 undef , i32 undef >
    252   ret <8 x i16> %tmp8
    253 }
    254 
    255 ; Test yonah where we convert a shuffle to pextrw and pinrsw
    256 define <16 x i8> @t16(<16 x i8> %T0) nounwind readnone {
    257 ; X64-LABEL: t16:
    258 ; X64:       ## BB#0: ## %entry
    259 ; X64-NEXT:    movdqa {{.*#+}} xmm1 = [0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0]
    260 ; X64-NEXT:    punpcklwd {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1],xmm1[2],xmm0[2],xmm1[3],xmm0[3]
    261 ; X64-NEXT:    movdqa %xmm1, %xmm0
    262 ; X64-NEXT:    retq
    263 entry:
    264   %tmp8 = shufflevector <16 x i8> <i8 0, i8 0, i8 0, i8 0, i8 1, i8 1, i8 1, i8 1, i8 0, i8 0, i8 0, i8 0,  i8 0, i8 0, i8 0, i8 0>, <16 x i8> %T0, <16 x i32> < i32 0, i32 1, i32 16, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef , i32 undef >
    265   %tmp9 = shufflevector <16 x i8> %tmp8, <16 x i8> %T0,  <16 x i32> < i32 0, i32 1, i32 2, i32 17,  i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef , i32 undef >
    266   ret <16 x i8> %tmp9
    267 }
    268 
    269 ; rdar://8520311
    270 define <4 x i32> @t17() nounwind {
    271 ; X64-LABEL: t17:
    272 ; X64:       ## BB#0: ## %entry
    273 ; X64-NEXT:    movaps (%rax), %xmm0
    274 ; X64-NEXT:    unpcklps {{.*#+}} xmm0 = xmm0[0,0,1,1]
    275 ; X64-NEXT:    pxor %xmm1, %xmm1
    276 ; X64-NEXT:    punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
    277 ; X64-NEXT:    retq
    278 entry:
    279   %tmp1 = load <4 x float>, <4 x float>* undef, align 16
    280   %tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> <i32 4, i32 1, i32 2, i32 3>
    281   %tmp3 = load <4 x float>, <4 x float>* undef, align 16
    282   %tmp4 = shufflevector <4 x float> %tmp2, <4 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
    283   %tmp5 = bitcast <4 x float> %tmp3 to <4 x i32>
    284   %tmp6 = shufflevector <4 x i32> %tmp5, <4 x i32> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
    285   %tmp7 = and <4 x i32> %tmp6, <i32 undef, i32 undef, i32 -1, i32 0>
    286   ret <4 x i32> %tmp7
    287 }
    288