llvm-project

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;; Tag this 'XFAIL' because we need a few more TTIs and ISels.
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; XFAIL: *
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; RUN: opt --mtriple=loongarch64 -mattr=+d --passes=loop-data-prefetch -loongarch-enable-loop-data-prefetch -S < %s | FileCheck %s
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define void @foo(ptr %a, ptr %b) {
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entry:
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  br label %for.body
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; CHECK: 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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  %arrayidx = getelementptr inbounds double, ptr %b, i64 %indvars.iv
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; CHECK: call void @llvm.prefetch
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  %0 = load double, ptr %arrayidx, align 8
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  %add = fadd double %0, 1.000000e+00
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  %arrayidx2 = getelementptr inbounds double, ptr %a, i64 %indvars.iv
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  store double %add, ptr %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, 1600
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  br i1 %exitcond, label %for.end, label %for.body
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; CHECK: for.end:
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for.end:                                          ; preds = %for.body
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  ret void
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}
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