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82 lines
3.5 KiB
LLVM
Executable File
82 lines
3.5 KiB
LLVM
Executable File
; REQUIRES: asserts
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; RUN: opt -loop-vectorize -S -mcpu=skx --debug-only=loop-vectorize < %s 2>&1| FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@A = global [10240 x i64] zeroinitializer, align 16
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@B = global [10240 x i64] zeroinitializer, align 16
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; Function Attrs: nounwind uwtable
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define void @load_i64_stride2() {
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;CHECK-LABEL: load_i64_stride2
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;CHECK: Found an estimated cost of 1 for VF 1 For instruction: %1 = load
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;CHECK: Found an estimated cost of 1 for VF 2 For instruction: %1 = load
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;CHECK: Found an estimated cost of 1 for VF 4 For instruction: %1 = load
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;CHECK: Found an estimated cost of 2 for VF 8 For instruction: %1 = load
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%0 = shl nsw i64 %indvars.iv, 1
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%arrayidx = getelementptr inbounds [10240 x i64], [10240 x i64]* @A, i64 0, i64 %0
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%1 = load i64, i64* %arrayidx, align 16
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%arrayidx2 = getelementptr inbounds [10240 x i64], [10240 x i64]* @B, i64 0, i64 %indvars.iv
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store i64 %1, i64* %arrayidx2, align 8
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 1024
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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define void @load_i64_stride3() {
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;CHECK-LABEL: load_i64_stride3
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;CHECK: Found an estimated cost of 1 for VF 1 For instruction: %1 = load
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;CHECK: Found an estimated cost of 1 for VF 2 For instruction: %1 = load
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;CHECK: Found an estimated cost of 2 for VF 4 For instruction: %1 = load
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;CHECK: Found an estimated cost of 3 for VF 8 For instruction: %1 = load
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%0 = mul nsw i64 %indvars.iv, 3
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%arrayidx = getelementptr inbounds [10240 x i64], [10240 x i64]* @A, i64 0, i64 %0
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%1 = load i64, i64* %arrayidx, align 16
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%arrayidx2 = getelementptr inbounds [10240 x i64], [10240 x i64]* @B, i64 0, i64 %indvars.iv
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store i64 %1, i64* %arrayidx2, align 8
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 1024
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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define void @load_i64_stride4() {
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;CHECK-LABEL: load_i64_stride4
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;CHECK: Found an estimated cost of 1 for VF 1 For instruction: %1 = load
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;CHECK: Found an estimated cost of 1 for VF 2 For instruction: %1 = load
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;CHECK: Found an estimated cost of 2 for VF 4 For instruction: %1 = load
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;CHECK: Found an estimated cost of 5 for VF 8 For instruction: %1 = load
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%0 = mul nsw i64 %indvars.iv, 4
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%arrayidx = getelementptr inbounds [10240 x i64], [10240 x i64]* @A, i64 0, i64 %0
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%1 = load i64, i64* %arrayidx, align 16
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%arrayidx2 = getelementptr inbounds [10240 x i64], [10240 x i64]* @B, i64 0, i64 %indvars.iv
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store i64 %1, i64* %arrayidx2, align 8
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 1024
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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