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      1 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
      2 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-ignore-target-info -instcombine -gvn -S | FileCheck %s
      3 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-aligned-only -bb-vectorize-ignore-target-info -instcombine -gvn -S | FileCheck %s -check-prefix=CHECK-AO
      4 
      5 ; Simple 3-pair chain with loads and stores
      6 define void @test1(double* %a, double* %b, double* %c) nounwind uwtable readonly {
      7 entry:
      8   %i0 = load double* %a, align 8
      9   %i1 = load double* %b, align 8
     10   %mul = fmul double %i0, %i1
     11   %arrayidx3 = getelementptr inbounds double* %a, i64 1
     12   %i3 = load double* %arrayidx3, align 8
     13   %arrayidx4 = getelementptr inbounds double* %b, i64 1
     14   %i4 = load double* %arrayidx4, align 8
     15   %mul5 = fmul double %i3, %i4
     16   store double %mul, double* %c, align 8
     17   %arrayidx5 = getelementptr inbounds double* %c, i64 1
     18   store double %mul5, double* %arrayidx5, align 8
     19   ret void
     20 ; CHECK: @test1
     21 ; CHECK: %i0.v.i0 = bitcast double* %a to <2 x double>*
     22 ; CHECK: %i1.v.i0 = bitcast double* %b to <2 x double>*
     23 ; CHECK: %i0 = load <2 x double>* %i0.v.i0, align 8
     24 ; CHECK: %i1 = load <2 x double>* %i1.v.i0, align 8
     25 ; CHECK: %mul = fmul <2 x double> %i0, %i1
     26 ; CHECK: %0 = bitcast double* %c to <2 x double>*
     27 ; CHECK: store <2 x double> %mul, <2 x double>* %0, align 8
     28 ; CHECK: ret void
     29 ; CHECK-AO: @test1
     30 ; CHECK-AO-NOT: <2 x double>
     31 }
     32 
     33 ; Simple chain with extending loads and stores
     34 define void @test2(float* %a, float* %b, double* %c) nounwind uwtable readonly {
     35 entry:
     36   %i0f = load float* %a, align 4
     37   %i0 = fpext float %i0f to double
     38   %i1f = load float* %b, align 4
     39   %i1 = fpext float %i1f to double
     40   %mul = fmul double %i0, %i1
     41   %arrayidx3 = getelementptr inbounds float* %a, i64 1
     42   %i3f = load float* %arrayidx3, align 4
     43   %i3 = fpext float %i3f to double
     44   %arrayidx4 = getelementptr inbounds float* %b, i64 1
     45   %i4f = load float* %arrayidx4, align 4
     46   %i4 = fpext float %i4f to double
     47   %mul5 = fmul double %i3, %i4
     48   store double %mul, double* %c, align 8
     49   %arrayidx5 = getelementptr inbounds double* %c, i64 1
     50   store double %mul5, double* %arrayidx5, align 8
     51   ret void
     52 ; CHECK: @test2
     53 ; CHECK: %i0f.v.i0 = bitcast float* %a to <2 x float>*
     54 ; CHECK: %i1f.v.i0 = bitcast float* %b to <2 x float>*
     55 ; CHECK: %i0f = load <2 x float>* %i0f.v.i0, align 4
     56 ; CHECK: %i0 = fpext <2 x float> %i0f to <2 x double>
     57 ; CHECK: %i1f = load <2 x float>* %i1f.v.i0, align 4
     58 ; CHECK: %i1 = fpext <2 x float> %i1f to <2 x double>
     59 ; CHECK: %mul = fmul <2 x double> %i0, %i1
     60 ; CHECK: %0 = bitcast double* %c to <2 x double>*
     61 ; CHECK: store <2 x double> %mul, <2 x double>* %0, align 8
     62 ; CHECK: ret void
     63 ; CHECK-AO: @test2
     64 ; CHECK-AO-NOT: <2 x double>
     65 }
     66 
     67 ; Simple chain with loads and truncating stores
     68 define void @test3(double* %a, double* %b, float* %c) nounwind uwtable readonly {
     69 entry:
     70   %i0 = load double* %a, align 8
     71   %i1 = load double* %b, align 8
     72   %mul = fmul double %i0, %i1
     73   %mulf = fptrunc double %mul to float
     74   %arrayidx3 = getelementptr inbounds double* %a, i64 1
     75   %i3 = load double* %arrayidx3, align 8
     76   %arrayidx4 = getelementptr inbounds double* %b, i64 1
     77   %i4 = load double* %arrayidx4, align 8
     78   %mul5 = fmul double %i3, %i4
     79   %mul5f = fptrunc double %mul5 to float
     80   store float %mulf, float* %c, align 8
     81   %arrayidx5 = getelementptr inbounds float* %c, i64 1
     82   store float %mul5f, float* %arrayidx5, align 4
     83   ret void
     84 ; CHECK: @test3
     85 ; CHECK: %i0.v.i0 = bitcast double* %a to <2 x double>*
     86 ; CHECK: %i1.v.i0 = bitcast double* %b to <2 x double>*
     87 ; CHECK: %i0 = load <2 x double>* %i0.v.i0, align 8
     88 ; CHECK: %i1 = load <2 x double>* %i1.v.i0, align 8
     89 ; CHECK: %mul = fmul <2 x double> %i0, %i1
     90 ; CHECK: %mulf = fptrunc <2 x double> %mul to <2 x float>
     91 ; CHECK: %0 = bitcast float* %c to <2 x float>*
     92 ; CHECK: store <2 x float> %mulf, <2 x float>* %0, align 8
     93 ; CHECK: ret void
     94 ; CHECK-AO: @test3
     95 ; CHECK-AO: %i0 = load double* %a, align 8
     96 ; CHECK-AO: %i1 = load double* %b, align 8
     97 ; CHECK-AO: %arrayidx3 = getelementptr inbounds double* %a, i64 1
     98 ; CHECK-AO: %i3 = load double* %arrayidx3, align 8
     99 ; CHECK-AO: %arrayidx4 = getelementptr inbounds double* %b, i64 1
    100 ; CHECK-AO: %i4 = load double* %arrayidx4, align 8
    101 ; CHECK-AO: %mul.v.i1.1 = insertelement <2 x double> undef, double %i1, i32 0
    102 ; CHECK-AO: %mul.v.i1.2 = insertelement <2 x double> %mul.v.i1.1, double %i4, i32 1
    103 ; CHECK-AO: %mul.v.i0.1 = insertelement <2 x double> undef, double %i0, i32 0
    104 ; CHECK-AO: %mul.v.i0.2 = insertelement <2 x double> %mul.v.i0.1, double %i3, i32 1
    105 ; CHECK-AO: %mul = fmul <2 x double> %mul.v.i0.2, %mul.v.i1.2
    106 ; CHECK-AO: %mulf = fptrunc <2 x double> %mul to <2 x float>
    107 ; CHECK-AO: %0 = bitcast float* %c to <2 x float>*
    108 ; CHECK-AO: store <2 x float> %mulf, <2 x float>* %0, align 8
    109 ; CHECK-AO: ret void
    110 }
    111 
    112 ; Simple 3-pair chain with loads and stores (unreachable)
    113 define void @test4(i1 %bool, double* %a, double* %b, double* %c) nounwind uwtable readonly {
    114 entry:
    115   br i1 %bool, label %if.then1, label %if.end
    116 
    117 if.then1:
    118   unreachable
    119   br label %if.then
    120 
    121 if.then:
    122   %i0 = load double* %a, align 8
    123   %i1 = load double* %b, align 8
    124   %mul = fmul double %i0, %i1
    125   %arrayidx3 = getelementptr inbounds double* %a, i64 1
    126   %i3 = load double* %arrayidx3, align 8
    127   %arrayidx4 = getelementptr inbounds double* %b, i64 1
    128   %i4 = load double* %arrayidx4, align 8
    129   %mul5 = fmul double %i3, %i4
    130   store double %mul, double* %c, align 8
    131   %arrayidx5 = getelementptr inbounds double* %c, i64 1
    132   store double %mul5, double* %arrayidx5, align 8
    133   br label %if.end
    134 
    135 if.end:
    136   ret void
    137 ; CHECK: @test4
    138 ; CHECK-NOT: <2 x double>
    139 ; CHECK-AO: @test4
    140 ; CHECK-AO-NOT: <2 x double>
    141 }
    142 
    143 ; Simple 3-pair chain with loads and stores
    144 define void @test5(double* %a, double* %b, double* %c) nounwind uwtable readonly {
    145 entry:
    146   %i0 = load double* %a, align 8
    147   %i1 = load double* %b, align 8
    148   %mul = fmul double %i0, %i1
    149   %arrayidx3 = getelementptr inbounds double* %a, i64 1
    150   %i3 = load double* %arrayidx3, align 8
    151   %arrayidx4 = getelementptr inbounds double* %b, i64 1
    152   %i4 = load double* %arrayidx4, align 8
    153   %mul5 = fmul double %i3, %i4
    154   %arrayidx5 = getelementptr inbounds double* %c, i64 1
    155   store double %mul5, double* %arrayidx5, align 8
    156   store double %mul, double* %c, align 4
    157   ret void
    158 ; CHECK: @test5
    159 ; CHECK: %i0.v.i0 = bitcast double* %a to <2 x double>*
    160 ; CHECK: %i1.v.i0 = bitcast double* %b to <2 x double>*
    161 ; CHECK: %i0 = load <2 x double>* %i0.v.i0, align 8
    162 ; CHECK: %i1 = load <2 x double>* %i1.v.i0, align 8
    163 ; CHECK: %mul = fmul <2 x double> %i0, %i1
    164 ; CHECK: %0 = bitcast double* %c to <2 x double>*
    165 ; CHECK: store <2 x double> %mul, <2 x double>* %0, align 4
    166 ; CHECK: ret void
    167 ; CHECK-AO: @test5
    168 ; CHECK-AO-NOT: <2 x double>
    169 }
    170 
    171