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1; 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=ALL2; RUN: opt -mcpu=cyclone -mtriple=arm64-apple-ios -passes=loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL3; RUN: opt -mcpu=generic -mtriple=arm64-apple-ios -passes=loop-data-prefetch -S < %s | FileCheck %s --check-prefix=NO_LARGE_PREFETCH --check-prefix=ALL4 5target 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"6 7; ALL-LABEL: @small_stride(8define void @small_stride(ptr nocapture %a, ptr nocapture readonly %b) {9entry:10 br label %for.body11 12; ALL: for.body:13for.body: ; preds = %for.body, %entry14 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]15 %arrayidx = getelementptr inbounds double, ptr %b, i64 %indvars.iv16; ALL-NOT: call void @llvm.prefetch17 %0 = load double, ptr %arrayidx, align 818 %add = fadd double %0, 1.000000e+0019 %arrayidx2 = getelementptr inbounds double, ptr %a, i64 %indvars.iv20 store double %add, ptr %arrayidx2, align 821 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 122 %exitcond = icmp eq i64 %indvars.iv.next, 160023 br i1 %exitcond, label %for.end, label %for.body24 25; ALL: for.end:26for.end: ; preds = %for.body27 ret void28}29 30; ALL-LABEL: @large_stride(31define void @large_stride(ptr nocapture %a, ptr nocapture readonly %b) {32entry:33 br label %for.body34 35; ALL: for.body:36for.body: ; preds = %for.body, %entry37 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]38 %arrayidx = getelementptr inbounds double, ptr %b, i64 %indvars.iv39; LARGE_PREFETCH: call void @llvm.prefetch40; NO_LARGE_PREFETCH-NOT: call void @llvm.prefetch41 %0 = load double, ptr %arrayidx, align 842 %add = fadd double %0, 1.000000e+0043 %arrayidx2 = getelementptr inbounds double, ptr %a, i64 %indvars.iv44 store double %add, ptr %arrayidx2, align 845 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 30046 %exitcond = icmp eq i64 %indvars.iv.next, 16000047 br i1 %exitcond, label %for.end, label %for.body48 49; ALL: for.end:50for.end: ; preds = %for.body51 ret void52}53