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      1 ; RUN: llc < %s -O3 -mtriple=arm64-apple-ios -enable-unsafe-fp-math | FileCheck %s
      2 ; RUN: llc < %s -O3 -mtriple=arm64-apple-ios -fp-contract=fast | FileCheck %s
      3 
      4 define void @foo_2d(double* %src) {
      5 entry:
      6   %arrayidx1 = getelementptr inbounds double, double* %src, i64 5
      7   %arrayidx2 = getelementptr inbounds double, double* %src, i64 11
      8   %tmp = bitcast double* %arrayidx1 to <2 x double>*
      9   br label %for.body
     10 
     11 ; CHECK-LABEL: %for.body
     12 ; CHECK: fmls.2d {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}
     13 ; CHECK: fmls.2d {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}[0]
     14 ; CHECK: fmls.d {{d[0-9]+}}, {{d[0-9]+}}, {{v[0-9]+}}[0]
     15 for.body:                                         ; preds = %for.body, %entry
     16   %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
     17   %indvars.iv.next = sub nuw nsw i64 %indvars.iv, 1
     18   %arrayidx3 = getelementptr inbounds double, double* %src, i64 %indvars.iv.next
     19   %tmp1 = load double, double* %arrayidx3, align 8
     20   %add = fadd fast double %tmp1, %tmp1
     21   %mul = fmul fast double %add, %add
     22   %e1 = insertelement <2 x double> undef, double %add, i32 0
     23   %e2 = insertelement <2 x double> %e1, double %add, i32 1
     24   %sub2 = fsub fast <2 x double> %e2, <double 3.000000e+00, double -3.000000e+00>
     25   %e3 = insertelement <2 x double> undef, double %mul, i32 0
     26   %e4 = insertelement <2 x double> %e3, double %mul, i32 1
     27   %mul2 = fmul fast <2 x double> %sub2,<double 3.000000e+00, double -3.000000e+00>
     28   %e5 = insertelement <2 x double> undef, double %add, i32 0
     29   %e6 = insertelement <2 x double> %e5, double %add, i32 1
     30   %sub3 = fsub fast  <2 x double>  <double 3.000000e+00, double -3.000000e+00>, %mul2
     31   %mulx = fmul fast <2 x double> %sub2, %e2
     32   %subx = fsub fast  <2 x double> %e4, %mulx
     33   %e7 = insertelement <2 x double> undef, double %mul, i32 0
     34   %e8 = insertelement <2 x double> %e7, double %mul, i32 1
     35   %e9 = fmul fast <2 x double>  %subx, %sub3
     36   store <2 x double> %e9, <2 x double>* %tmp, align 8
     37   %e10 = extractelement <2 x double> %sub3, i32 0
     38   %mul3 = fmul fast double %mul, %e10
     39   %sub4 = fsub fast double %mul, %mul3
     40   store double %sub4, double* %arrayidx2, align 8
     41   %exitcond = icmp eq i64 %indvars.iv.next, 25
     42   br i1 %exitcond, label %for.end, label %for.body
     43 
     44 for.end:                                          ; preds = %for.body
     45   ret void
     46 }
     47 define void @foo_2s(float* %src) {
     48 entry:
     49   %arrayidx1 = getelementptr inbounds float, float* %src, i64 5
     50   %arrayidx2 = getelementptr inbounds float, float* %src, i64 11
     51   %tmp = bitcast float* %arrayidx1 to <2 x float>*
     52   br label %for.body
     53 
     54 ; CHECK-LABEL: %for.body
     55 ; CHECK: fmls.2s {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}
     56 ; CHECK: fmls.2s {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}[0]
     57 ; CHECK: fmls.s {{s[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}}[0]
     58 for.body:                                         ; preds = %for.body, %entry
     59   %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
     60   %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
     61   %arrayidx3 = getelementptr inbounds float, float* %src, i64 %indvars.iv.next
     62   %tmp1 = load float, float* %arrayidx3, align 8
     63   %add = fadd fast float %tmp1, %tmp1
     64   %mul = fmul fast float %add, %add
     65   %e1 = insertelement <2 x float> undef, float %add, i32 0
     66   %e2 = insertelement <2 x float> %e1, float %add, i32 1
     67   %add2 = fsub fast <2 x float> %e2, <float 3.000000e+00, float -3.000000e+00>
     68   %e3 = insertelement <2 x float> undef, float %mul, i32 0
     69   %e4 = insertelement <2 x float> %e3, float %mul, i32 1
     70   %mul2 = fmul fast <2 x float> %add2,<float 3.000000e+00, float -3.000000e+00>
     71   %e5 = insertelement <2 x float> undef, float %add, i32 0
     72   %e6 = insertelement <2 x float> %e5, float %add, i32 1
     73   %add3 = fsub fast  <2 x float>  <float 3.000000e+00, float -3.000000e+00>, %mul2
     74   %mulx = fmul fast <2 x float> %add2, %e2
     75   %addx = fsub fast  <2 x float> %e4, %mulx
     76   %e7 = insertelement <2 x float> undef, float %mul, i32 0
     77   %e8 = insertelement <2 x float> %e7, float %mul, i32 1
     78   %e9 = fmul fast <2 x float>  %addx, %add3
     79   store <2 x float> %e9, <2 x float>* %tmp, align 8
     80   %e10 = extractelement <2 x float> %add3, i32 0
     81   %mul3 = fmul fast float %mul, %e10
     82   %add4 = fsub fast float %mul, %mul3
     83   store float %add4, float* %arrayidx2, align 8
     84   %exitcond = icmp eq i64 %indvars.iv.next, 25
     85   br i1 %exitcond, label %for.end, label %for.body
     86 
     87 for.end:                                          ; preds = %for.body
     88   ret void
     89 }
     90 define void @foo_4s(float* %src) {
     91 entry:
     92   %arrayidx1 = getelementptr inbounds float, float* %src, i64 5
     93   %arrayidx2 = getelementptr inbounds float, float* %src, i64 11
     94   %tmp = bitcast float* %arrayidx1 to <4 x float>*
     95   br label %for.body
     96 
     97 ; CHECK-LABEL: %for.body
     98 ; CHECK: fmls.4s {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}
     99 ; CHECK: fmls.4s {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}[0]
    100 for.body:                                         ; preds = %for.body, %entry
    101   %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
    102   %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
    103   %arrayidx3 = getelementptr inbounds float, float* %src, i64 %indvars.iv.next
    104   %tmp1 = load float, float* %arrayidx3, align 8
    105   %add = fadd fast float %tmp1, %tmp1
    106   %mul = fmul fast float %add, %add
    107   %e1 = insertelement <4 x float> undef, float %add, i32 0
    108   %e2 = insertelement <4 x float> %e1, float %add, i32 1
    109   %add2 = fadd fast <4 x float> %e2, <float 3.000000e+00, float -3.000000e+00, float 5.000000e+00, float 7.000000e+00>
    110   %e3 = insertelement <4 x float> undef, float %mul, i32 0
    111   %e4 = insertelement <4 x float> %e3, float %mul, i32 1
    112   %mul2 = fmul fast <4 x float> %add2,<float 3.000000e+00, float -3.000000e+00, float 5.000000e+00, float 7.000000e+00>
    113   %e5 = insertelement <4 x float> undef, float %add, i32 0
    114   %e6 = insertelement <4 x float> %e5, float %add, i32 1
    115   %add3 = fsub fast  <4 x float> <float 3.000000e+00, float -3.000000e+00, float 5.000000e+00, float 7.000000e+00> , %mul2
    116   %mulx = fmul fast <4 x float> %add2, %e2
    117   %addx = fsub fast  <4 x float> %e4, %mulx
    118   %e7 = insertelement <4 x float> undef, float %mul, i32 0
    119   %e8 = insertelement <4 x float> %e7, float %mul, i32 1
    120   %e9 = fmul fast <4 x float>  %addx, %add3
    121   store <4 x float> %e9, <4 x float>* %tmp, align 8
    122   %e10 = extractelement <4 x float> %add3, i32 0
    123   %mul3 = fmul fast float %mul, %e10
    124   store float %mul3, float* %arrayidx2, align 8
    125   %exitcond = icmp eq i64 %indvars.iv.next, 25
    126   br i1 %exitcond, label %for.end, label %for.body
    127 
    128 for.end:                                          ; preds = %for.body
    129   ret void
    130 }
    131 
    132 ; CHECK-LABEL: test1:
    133 ; CHECK: fnmadd s0, s0, s1, s2
    134 define float @test1(float %a, float %b, float %c) {
    135 entry:
    136   %0 = fmul float %a, %b
    137   %mul = fsub float -0.000000e+00, %0
    138   %sub1 = fsub float %mul, %c
    139   ret float %sub1
    140 }
    141 
    142 ; CHECK-LABEL: test2:
    143 ; CHECK: fnmadd d0, d0, d1, d2
    144 define double @test2(double %a, double %b, double %c) {
    145 entry:
    146   %0 = fmul double %a, %b
    147   %mul = fsub double -0.000000e+00, %0
    148   %sub1 = fsub double %mul, %c
    149   ret double %sub1
    150 }
    151