1 ; RUN: opt -mcpu=cyclone -mtriple=arm64-apple-ios -loop-data-prefetch -max-prefetch-iters-ahead=100 -S < %s | FileCheck %s --check-prefix=LARGE_PREFETCH --check-prefix=ALL
2 ; RUN: opt -mcpu=cyclone -mtriple=arm64-apple-ios -loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
3 ; RUN: opt -mcpu=generic -mtriple=arm64-apple-ios -loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
4 ; RUN: opt -mcpu=cyclone -mtriple=arm64-apple-ios -passes=loop-data-prefetch -max-prefetch-iters-ahead=100 -S < %s | FileCheck %s --check-prefix=LARGE_PREFETCH --check-prefix=ALL
5 ; RUN: opt -mcpu=cyclone -mtriple=arm64-apple-ios -passes=loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
6 ; RUN: opt -mcpu=generic -mtriple=arm64-apple-ios -passes=loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL
8 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"
10 ; ALL-LABEL: @small_stride(
11 define void @small_stride(double* nocapture %a, double* nocapture readonly %b) {
16 for.body: ; preds = %for.body, %entry
17 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
18 %arrayidx = getelementptr inbounds double, double* %b, i64 %indvars.iv
19 ; ALL-NOT: call void @llvm.prefetch
20 %0 = load double, double* %arrayidx, align 8
21 %add = fadd double %0, 1.000000e+00
22 %arrayidx2 = getelementptr inbounds double, double* %a, i64 %indvars.iv
23 store double %add, double* %arrayidx2, align 8
24 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
25 %exitcond = icmp eq i64 %indvars.iv.next, 1600
26 br i1 %exitcond, label %for.end, label %for.body
29 for.end: ; preds = %for.body
33 ; ALL-LABEL: @large_stride(
34 define void @large_stride(double* nocapture %a, double* nocapture readonly %b) {
39 for.body: ; preds = %for.body, %entry
40 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
41 %arrayidx = getelementptr inbounds double, double* %b, i64 %indvars.iv
42 ; LARGE_PREFETCH: call void @llvm.prefetch
43 ; NO_LARGE_PREFETCH-NOT: call void @llvm.prefetch
44 %0 = load double, double* %arrayidx, align 8
45 %add = fadd double %0, 1.000000e+00
46 %arrayidx2 = getelementptr inbounds double, double* %a, i64 %indvars.iv
47 store double %add, double* %arrayidx2, align 8
48 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 300
49 %exitcond = icmp eq i64 %indvars.iv.next, 160000
50 br i1 %exitcond, label %for.end, label %for.body
53 for.end: ; preds = %for.body