1 ; REQUIRES: asserts 2 ; RUN: opt -S -loop-vectorize -debug-only=loop-vectorize -mcpu=skylake %s 2>&1 | FileCheck %s 3 target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" 4 target triple = "i386-unknown-linux-gnu" 5 6 @src = common local_unnamed_addr global [120 x float] zeroinitializer, align 4 7 @dst = common local_unnamed_addr global [120 x float] zeroinitializer, align 4 8 9 ; Function Attrs: norecurse nounwind 10 define void @stride8(float %k, i32 %width_) { 11 entry: 12 13 ; CHECK: Found an estimated cost of 48 for VF 8 For instruction: %0 = load float 14 15 %cmp72 = icmp sgt i32 %width_, 0 16 br i1 %cmp72, label %for.body.lr.ph, label %for.cond.cleanup 17 18 for.body.lr.ph: ; preds = %entry 19 br label %for.body 20 21 for.cond.cleanup.loopexit: ; preds = %for.body 22 br label %for.cond.cleanup 23 24 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry 25 ret void 26 27 for.body: ; preds = %for.body.lr.ph, %for.body 28 %i.073 = phi i32 [ 0, %for.body.lr.ph ], [ %add46, %for.body ] 29 %arrayidx = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %i.073 30 %0 = load float, float* %arrayidx, align 4 31 %mul = fmul fast float %0, %k 32 %arrayidx2 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %i.073 33 %1 = load float, float* %arrayidx2, align 4 34 %add3 = fadd fast float %1, %mul 35 store float %add3, float* %arrayidx2, align 4 36 %add4 = or i32 %i.073, 1 37 %arrayidx5 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add4 38 %2 = load float, float* %arrayidx5, align 4 39 %mul6 = fmul fast float %2, %k 40 %arrayidx8 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add4 41 %3 = load float, float* %arrayidx8, align 4 42 %add9 = fadd fast float %3, %mul6 43 store float %add9, float* %arrayidx8, align 4 44 %add10 = or i32 %i.073, 2 45 %arrayidx11 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add10 46 %4 = load float, float* %arrayidx11, align 4 47 %mul12 = fmul fast float %4, %k 48 %arrayidx14 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add10 49 %5 = load float, float* %arrayidx14, align 4 50 %add15 = fadd fast float %5, %mul12 51 store float %add15, float* %arrayidx14, align 4 52 %add16 = or i32 %i.073, 3 53 %arrayidx17 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add16 54 %6 = load float, float* %arrayidx17, align 4 55 %mul18 = fmul fast float %6, %k 56 %arrayidx20 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add16 57 %7 = load float, float* %arrayidx20, align 4 58 %add21 = fadd fast float %7, %mul18 59 store float %add21, float* %arrayidx20, align 4 60 %add22 = or i32 %i.073, 4 61 %arrayidx23 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add22 62 %8 = load float, float* %arrayidx23, align 4 63 %mul24 = fmul fast float %8, %k 64 %arrayidx26 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add22 65 %9 = load float, float* %arrayidx26, align 4 66 %add27 = fadd fast float %9, %mul24 67 store float %add27, float* %arrayidx26, align 4 68 %add28 = or i32 %i.073, 5 69 %arrayidx29 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add28 70 %10 = load float, float* %arrayidx29, align 4 71 %mul30 = fmul fast float %10, %k 72 %arrayidx32 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add28 73 %11 = load float, float* %arrayidx32, align 4 74 %add33 = fadd fast float %11, %mul30 75 store float %add33, float* %arrayidx32, align 4 76 %add34 = or i32 %i.073, 6 77 %arrayidx35 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add34 78 %12 = load float, float* %arrayidx35, align 4 79 %mul36 = fmul fast float %12, %k 80 %arrayidx38 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add34 81 %13 = load float, float* %arrayidx38, align 4 82 %add39 = fadd fast float %13, %mul36 83 store float %add39, float* %arrayidx38, align 4 84 %add40 = or i32 %i.073, 7 85 %arrayidx41 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add40 86 %14 = load float, float* %arrayidx41, align 4 87 %mul42 = fmul fast float %14, %k 88 %arrayidx44 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add40 89 %15 = load float, float* %arrayidx44, align 4 90 %add45 = fadd fast float %15, %mul42 91 store float %add45, float* %arrayidx44, align 4 92 %add46 = add nuw nsw i32 %i.073, 8 93 %cmp = icmp slt i32 %add46, %width_ 94 br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit 95 } 96 97 ; Function Attrs: norecurse nounwind 98 define void @stride3(float %k, i32 %width_) { 99 entry: 100 101 ; CHECK: Found an estimated cost of 20 for VF 8 For instruction: %0 = load float 102 103 %cmp27 = icmp sgt i32 %width_, 0 104 br i1 %cmp27, label %for.body.lr.ph, label %for.cond.cleanup 105 106 for.body.lr.ph: ; preds = %entry 107 br label %for.body 108 109 for.cond.cleanup: ; preds = %for.body, %entry 110 ret void 111 112 for.body: ; preds = %for.body.lr.ph, %for.body 113 %i.028 = phi i32 [ 0, %for.body.lr.ph ], [ %add16, %for.body ] 114 %arrayidx = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %i.028 115 %0 = load float, float* %arrayidx, align 4 116 %mul = fmul fast float %0, %k 117 %arrayidx2 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %i.028 118 %1 = load float, float* %arrayidx2, align 4 119 %add3 = fadd fast float %1, %mul 120 store float %add3, float* %arrayidx2, align 4 121 %add4 = add nuw nsw i32 %i.028, 1 122 %arrayidx5 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add4 123 %2 = load float, float* %arrayidx5, align 4 124 %mul6 = fmul fast float %2, %k 125 %arrayidx8 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add4 126 %3 = load float, float* %arrayidx8, align 4 127 %add9 = fadd fast float %3, %mul6 128 store float %add9, float* %arrayidx8, align 4 129 %add10 = add nuw nsw i32 %i.028, 2 130 %arrayidx11 = getelementptr inbounds [120 x float], [120 x float]* @src, i32 0, i32 %add10 131 %4 = load float, float* %arrayidx11, align 4 132 %mul12 = fmul fast float %4, %k 133 %arrayidx14 = getelementptr inbounds [120 x float], [120 x float]* @dst, i32 0, i32 %add10 134 %5 = load float, float* %arrayidx14, align 4 135 %add15 = fadd fast float %5, %mul12 136 store float %add15, float* %arrayidx14, align 4 137 %add16 = add nuw nsw i32 %i.028, 3 138 %cmp = icmp slt i32 %add16, %width_ 139 br i1 %cmp, label %for.body, label %for.cond.cleanup 140 } 141 142
