1 ; RUN: opt -mcpu=kryo -mtriple=aarch64-gnu-linux -loop-data-prefetch -max-prefetch-iters-ahead=1000 -S < %s | FileCheck %s --check-prefix=LARGE_PREFETCH --check-prefix=ALL
2 ; RUN: opt -mcpu=kryo -mtriple=aarch64-gnu-linux -loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
3 ; RUN: opt -mcpu=kryo -mtriple=aarch64-gnu-linux -passes=loop-data-prefetch -max-prefetch-iters-ahead=1000 -S < %s | FileCheck %s --check-prefix=LARGE_PREFETCH --check-prefix=ALL
4 ; RUN: opt -mcpu=kryo -mtriple=aarch64-gnu-linux -passes=loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
6 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-n32:64-S128"
8 ; ALL-LABEL: @small_stride(
9 define void @small_stride(double* nocapture %a, double* nocapture readonly %b) {
14 for.body: ; preds = %for.body, %entry
15 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
16 %arrayidx = getelementptr inbounds double, double* %b, i64 %indvars.iv
17 ; ALL-NOT: call void @llvm.prefetch
18 %0 = load double, double* %arrayidx, align 8
19 %add = fadd double %0, 1.000000e+00
20 %arrayidx2 = getelementptr inbounds double, double* %a, i64 %indvars.iv
21 store double %add, double* %arrayidx2, align 8
22 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
23 %exitcond = icmp eq i64 %indvars.iv.next, 1600
24 br i1 %exitcond, label %for.end, label %for.body
27 for.end: ; preds = %for.body
31 ; ALL-LABEL: @large_stride(
32 define void @large_stride(double* nocapture %a, double* nocapture readonly %b) {
37 for.body: ; preds = %for.body, %entry
38 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
39 %arrayidx = getelementptr inbounds double, double* %b, i64 %indvars.iv
40 ; LARGE_PREFETCH: call void @llvm.prefetch
41 ; NO_LARGE_PREFETCH-NOT: call void @llvm.prefetch
42 %0 = load double, double* %arrayidx, align 8
43 %add = fadd double %0, 1.000000e+00
44 %arrayidx2 = getelementptr inbounds double, double* %a, i64 %indvars.iv
45 store double %add, double* %arrayidx2, align 8
46 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 150
47 %exitcond = icmp eq i64 %indvars.iv.next, 160000
48 br i1 %exitcond, label %for.end, label %for.body
51 for.end: ; preds = %for.body