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      1 ; These are tests for SSE3 codegen.
      2 
      3 ; RUN: llc < %s -march=x86-64 -mcpu=nocona -mtriple=i686-apple-darwin9 -O3 \
      4 ; RUN:              | 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 entry:
     11 	%tmp3 = load <8 x i16>* %old
     12 	%tmp6 = shufflevector <8 x i16> %tmp3,
     13                 <8 x i16> < i16 0, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef >,
     14                 <8 x i32> < i32 8, i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef  >
     15 	store <8 x i16> %tmp6, <8 x i16>* %dest
     16 	ret void
     17         
     18 ; X64: t0:
     19 ; X64: 	movddup	(%rsi), %xmm0
     20 ; X64:  pshuflw	$0, %xmm0, %xmm0
     21 ; X64:	xorl	%eax, %eax
     22 ; X64:	pinsrw	$0, %eax, %xmm0
     23 ; X64:	movdqa	%xmm0, (%rdi)
     24 ; X64:	ret
     25 }
     26 
     27 define <8 x i16> @t1(<8 x i16>* %A, <8 x i16>* %B) nounwind {
     28 	%tmp1 = load <8 x i16>* %A
     29 	%tmp2 = load <8 x i16>* %B
     30 	%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 >
     31 	ret <8 x i16> %tmp3
     32         
     33 ; X64: t1:
     34 ; X64: 	movl	(%rsi), %eax
     35 ; X64: 	movdqa	(%rdi), %xmm0
     36 ; X64: 	pinsrw	$0, %eax, %xmm0
     37 ; X64: 	ret
     38 }
     39 
     40 define <8 x i16> @t2(<8 x i16> %A, <8 x i16> %B) nounwind {
     41 	%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 >
     42 	ret <8 x i16> %tmp
     43 ; X64: t2:
     44 ; X64:	pextrw	$1, %xmm1, %eax
     45 ; X64:	pinsrw	$0, %eax, %xmm0
     46 ; X64:	pinsrw	$3, %eax, %xmm0
     47 ; X64:	ret
     48 }
     49 
     50 define <8 x i16> @t3(<8 x i16> %A, <8 x i16> %B) nounwind {
     51 	%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 >
     52 	ret <8 x i16> %tmp
     53 ; X64: t3:
     54 ; X64: 	pextrw	$5, %xmm0, %eax
     55 ; X64: 	pshuflw	$44, %xmm0, %xmm0
     56 ; X64: 	pshufhw	$27, %xmm0, %xmm0
     57 ; X64: 	pinsrw	$3, %eax, %xmm0
     58 ; X64: 	ret
     59 }
     60 
     61 define <8 x i16> @t4(<8 x i16> %A, <8 x i16> %B) nounwind {
     62 	%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 >
     63 	ret <8 x i16> %tmp
     64 ; X64: t4:
     65 ; X64: 	pextrw	$7, [[XMM0:%xmm[0-9]+]], %eax
     66 ; X64: 	pshufhw	$100, [[XMM0]], [[XMM1:%xmm[0-9]+]]
     67 ; X64: 	pinsrw	$1, %eax, [[XMM1]]
     68 ; X64: 	pextrw	$1, [[XMM0]], %eax
     69 ; X64: 	pinsrw	$4, %eax, %xmm0
     70 ; X64: 	ret
     71 }
     72 
     73 define <8 x i16> @t5(<8 x i16> %A, <8 x i16> %B) nounwind {
     74 	%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 >
     75 	ret <8 x i16> %tmp
     76 ; X64: 	t5:
     77 ; X64: 		movlhps	%xmm1, %xmm0
     78 ; X64: 		pshufd	$114, %xmm0, %xmm0
     79 ; X64: 		ret
     80 }
     81 
     82 define <8 x i16> @t6(<8 x i16> %A, <8 x i16> %B) nounwind {
     83 	%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 >
     84 	ret <8 x i16> %tmp
     85 ; X64: 	t6:
     86 ; X64: 		movss	%xmm1, %xmm0
     87 ; X64: 		ret
     88 }
     89 
     90 define <8 x i16> @t7(<8 x i16> %A, <8 x i16> %B) nounwind {
     91 	%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 >
     92 	ret <8 x i16> %tmp
     93 ; X64: 	t7:
     94 ; X64: 		pshuflw	$-80, %xmm0, %xmm0
     95 ; X64: 		pshufhw	$-56, %xmm0, %xmm0
     96 ; X64: 		ret
     97 }
     98 
     99 define void @t8(<2 x i64>* %res, <2 x i64>* %A) nounwind {
    100 	%tmp = load <2 x i64>* %A
    101 	%tmp.upgrd.1 = bitcast <2 x i64> %tmp to <8 x i16>
    102 	%tmp0 = extractelement <8 x i16> %tmp.upgrd.1, i32 0
    103 	%tmp1 = extractelement <8 x i16> %tmp.upgrd.1, i32 1
    104 	%tmp2 = extractelement <8 x i16> %tmp.upgrd.1, i32 2
    105 	%tmp3 = extractelement <8 x i16> %tmp.upgrd.1, i32 3
    106 	%tmp4 = extractelement <8 x i16> %tmp.upgrd.1, i32 4
    107 	%tmp5 = extractelement <8 x i16> %tmp.upgrd.1, i32 5
    108 	%tmp6 = extractelement <8 x i16> %tmp.upgrd.1, i32 6
    109 	%tmp7 = extractelement <8 x i16> %tmp.upgrd.1, i32 7
    110 	%tmp8 = insertelement <8 x i16> undef, i16 %tmp2, i32 0
    111 	%tmp9 = insertelement <8 x i16> %tmp8, i16 %tmp1, i32 1
    112 	%tmp10 = insertelement <8 x i16> %tmp9, i16 %tmp0, i32 2
    113 	%tmp11 = insertelement <8 x i16> %tmp10, i16 %tmp3, i32 3
    114 	%tmp12 = insertelement <8 x i16> %tmp11, i16 %tmp6, i32 4
    115 	%tmp13 = insertelement <8 x i16> %tmp12, i16 %tmp5, i32 5
    116 	%tmp14 = insertelement <8 x i16> %tmp13, i16 %tmp4, i32 6
    117 	%tmp15 = insertelement <8 x i16> %tmp14, i16 %tmp7, i32 7
    118 	%tmp15.upgrd.2 = bitcast <8 x i16> %tmp15 to <2 x i64>
    119 	store <2 x i64> %tmp15.upgrd.2, <2 x i64>* %res
    120 	ret void
    121 ; X64: 	t8:
    122 ; X64: 		pshuflw	$-58, (%rsi), %xmm0
    123 ; X64: 		pshufhw	$-58, %xmm0, %xmm0
    124 ; X64: 		movdqa	%xmm0, (%rdi)
    125 ; X64: 		ret
    126 }
    127 
    128 define void @t9(<4 x float>* %r, <2 x i32>* %A) nounwind {
    129 	%tmp = load <4 x float>* %r
    130 	%tmp.upgrd.3 = bitcast <2 x i32>* %A to double*
    131 	%tmp.upgrd.4 = load double* %tmp.upgrd.3
    132 	%tmp.upgrd.5 = insertelement <2 x double> undef, double %tmp.upgrd.4, i32 0
    133 	%tmp5 = insertelement <2 x double> %tmp.upgrd.5, double undef, i32 1	
    134 	%tmp6 = bitcast <2 x double> %tmp5 to <4 x float>	
    135 	%tmp.upgrd.6 = extractelement <4 x float> %tmp, i32 0	
    136 	%tmp7 = extractelement <4 x float> %tmp, i32 1		
    137 	%tmp8 = extractelement <4 x float> %tmp6, i32 0		
    138 	%tmp9 = extractelement <4 x float> %tmp6, i32 1		
    139 	%tmp10 = insertelement <4 x float> undef, float %tmp.upgrd.6, i32 0	
    140 	%tmp11 = insertelement <4 x float> %tmp10, float %tmp7, i32 1
    141 	%tmp12 = insertelement <4 x float> %tmp11, float %tmp8, i32 2
    142 	%tmp13 = insertelement <4 x float> %tmp12, float %tmp9, i32 3
    143 	store <4 x float> %tmp13, <4 x float>* %r
    144 	ret void
    145 ; X64: 	t9:
    146 ; X64: 		movaps	(%rdi), %xmm0
    147 ; X64:	        movhps	(%rsi), %xmm0
    148 ; X64:	        movaps	%xmm0, (%rdi)
    149 ; X64: 		ret
    150 }
    151 
    152 
    153 
    154 ; FIXME: This testcase produces icky code. It can be made much better!
    155 ; PR2585
    156 
    157 @g1 = external constant <4 x i32>
    158 @g2 = external constant <4 x i16>
    159 
    160 define internal void @t10() nounwind {
    161         load <4 x i32>* @g1, align 16 
    162         bitcast <4 x i32> %1 to <8 x i16>
    163         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 >
    164         bitcast <8 x i16> %3 to <2 x i64>  
    165         extractelement <2 x i64> %4, i32 0 
    166         bitcast i64 %5 to <4 x i16>        
    167         store <4 x i16> %6, <4 x i16>* @g2, align 8
    168         ret void
    169 ; X64: 	t10:
    170 ; X64: 		pextrw	$4, [[X0:%xmm[0-9]+]], %eax
    171 ; X64: 		unpcklpd [[X1:%xmm[0-9]+]]
    172 ; X64: 		pshuflw	$8, [[X1]], [[X2:%xmm[0-9]+]]
    173 ; X64: 		pinsrw	$2, %eax, [[X2]]
    174 ; X64: 		pextrw	$6, [[X0]], %eax
    175 ; X64: 		pinsrw	$3, %eax, [[X2]]
    176 }
    177 
    178 
    179 ; Pack various elements via shuffles.
    180 define <8 x i16> @t11(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    181 entry:
    182 	%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 >
    183 	ret <8 x i16> %tmp7
    184 
    185 ; X64: t11:
    186 ; X64:	movd	%xmm1, %eax
    187 ; X64:	movlhps	%xmm0, %xmm0
    188 ; X64:	pshuflw	$1, %xmm0, %xmm0
    189 ; X64:	pinsrw	$1, %eax, %xmm0
    190 ; X64:	ret
    191 }
    192 
    193 
    194 define <8 x i16> @t12(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    195 entry:
    196 	%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 >
    197 	ret <8 x i16> %tmp9
    198 
    199 ; X64: t12:
    200 ; X64: 	pextrw	$3, %xmm1, %eax
    201 ; X64: 	movlhps	%xmm0, %xmm0
    202 ; X64: 	pshufhw	$3, %xmm0, %xmm0
    203 ; X64: 	pinsrw	$5, %eax, %xmm0
    204 ; X64: 	ret
    205 }
    206 
    207 
    208 define <8 x i16> @t13(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    209 entry:
    210 	%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 >
    211 	ret <8 x i16> %tmp9
    212 ; X64: t13:
    213 ; X64: 	punpcklqdq	%xmm0, %xmm1
    214 ; X64: 	pextrw	$3, %xmm1, %eax
    215 ; X64: 	pshufd	$52, %xmm1, %xmm0
    216 ; X64: 	pinsrw	$4, %eax, %xmm0
    217 ; X64: 	ret
    218 }
    219 
    220 
    221 define <8 x i16> @t14(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    222 entry:
    223 	%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 >
    224 	ret <8 x i16> %tmp9
    225 ; X64: t14:
    226 ; X64: 	punpcklqdq	%xmm0, %xmm1
    227 ; X64: 	pshufhw	$8, %xmm1, %xmm0
    228 ; X64: 	ret
    229 }
    230 
    231 
    232 
    233 define <8 x i16> @t15(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
    234 entry:
    235         %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 >
    236         ret <8 x i16> %tmp8
    237 ; X64: 	t15:
    238 ; X64: 		pextrw	$7, %xmm0, %eax
    239 ; X64: 		punpcklqdq	%xmm1, %xmm0
    240 ; X64: 		pshuflw	$-128, %xmm0, %xmm0
    241 ; X64: 		pinsrw	$2, %eax, %xmm0
    242 ; X64: 		ret
    243 }
    244 
    245 
    246 ; Test yonah where we convert a shuffle to pextrw and pinrsw
    247 define <16 x i8> @t16(<16 x i8> %T0) nounwind readnone {
    248 entry:
    249         %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 >
    250         %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 >
    251         ret <16 x i8> %tmp9
    252 ; X64: 	t16:
    253 ; X64: 		pinsrw	$0, %eax, [[X1:%xmm[0-9]+]]
    254 ; X64: 		pextrw	$8, [[X0:%xmm[0-9]+]], %eax
    255 ; X64: 		pinsrw	$1, %eax, [[X1]]
    256 ; X64: 		pextrw	$1, [[X1]], %ecx
    257 ; X64: 		movd	[[X1]], %edx
    258 ; X64: 		pinsrw	$0, %edx, %xmm
    259 ; X64: 		pinsrw	$1, %eax, %xmm
    260 ; X64: 		ret
    261 }
    262 
    263 ; rdar://8520311
    264 define <4 x i32> @t17() nounwind {
    265 entry:
    266 ; X64: t17:
    267 ; X64:          movddup (%rax), %xmm0
    268   %tmp1 = load <4 x float>* undef, align 16
    269   %tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> <i32 4, i32 1, i32 2, i32 3>
    270   %tmp3 = load <4 x float>* undef, align 16
    271   %tmp4 = shufflevector <4 x float> %tmp2, <4 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
    272   %tmp5 = bitcast <4 x float> %tmp3 to <4 x i32>
    273   %tmp6 = shufflevector <4 x i32> %tmp5, <4 x i32> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
    274   %tmp7 = and <4 x i32> %tmp6, <i32 undef, i32 undef, i32 -1, i32 0>
    275   ret <4 x i32> %tmp7
    276 }
    277