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; RUN: opt -mcpu=kryo -passes=loop-simplify,loop-data-prefetch -max-prefetch-iters-ahead=1000 -min-prefetch-stride=16 -S < %s | FileCheck %s
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux-gnu"
%struct._Chv = type { i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, %struct._DV, ptr }
%struct._DV = type { i32, i32, i32, ptr }
declare ptr @f_entries() local_unnamed_addr
define i32 @f(ptr %chv, i32 %npivot, ptr %pivotsizes, ptr %sizes) local_unnamed_addr {
if.end:
switch i32 undef, label %sw.default [
i32 1, label %sw.epilog
i32 3, label %sw.epilog
i32 4, label %sw.epilog
i32 5, label %sw.epilog
i32 6, label %sw.epilog
i32 7, label %sw.epilog
]
sw.default: ; preds = %if.end
unreachable
sw.epilog: ; preds = %if.end, %if.end, %if.end, %if.end, %if.end, %if.end
br label %if.end12
if.end12: ; preds = %sw.epilog
%nD13 = getelementptr inbounds %struct._Chv, ptr %chv, i64 0, i32 1
%0 = load i32, ptr %nD13, align 4
%nU15 = getelementptr inbounds %struct._Chv, ptr %chv, i64 0, i32 3
%1 = load i32, ptr %nU15, align 4
%add17 = add i32 %1, %0
%call18 = call ptr @f_entries()
switch i32 undef, label %sw.epilog2454 [
i32 3, label %sw.bb213
]
sw.bb213: ; preds = %if.end12
switch i32 undef, label %sw.epilog2454 [
i32 0, label %sw.bb214
]
sw.bb214: ; preds = %sw.bb213
br label %if.then220
if.then220: ; preds = %sw.bb214
%type230 = getelementptr inbounds %struct._Chv, ptr %chv, i64 0, i32 4
%2 = load i32, ptr %type230, align 8
br label %if.else319
if.else319: ; preds = %if.then220
switch i32 %2, label %sw.epilog2454 [
i32 2, label %for.cond372.preheader
]
for.cond372.preheader: ; preds = %if.else319
%cmp3734342 = icmp sgt i32 %npivot, 0
br i1 %cmp3734342, label %for.body374.lr.ph, label %sw.epilog2454
for.body374.lr.ph: ; preds = %for.cond372.preheader
br label %for.body374
for.body374: ; preds = %for.body374.lr.ph
%3 = load i32, ptr %pivotsizes, align 4
%add377 = add i32 %3, 0
br label %for.body381.lr.ph
for.body381.lr.ph: ; preds = %for.body374
%cmp3874327 = icmp slt i32 %add377, %add17
br i1 %cmp3874327, label %for.body381.us, label %for.body381.preheader
for.body381.preheader: ; preds = %for.body381.lr.ph
ret i32 undef
for.body381.us: ; preds = %for.cond386.for.end421_crit_edge.us, %for.body381.lr.ph
%indvars.iv4991.us = phi i64 [ %indvars.iv.next4992.us, %for.cond386.for.end421_crit_edge.us ], [ undef, %for.body381.lr.ph ]
%stride226.54337.us = phi i32 [ %dec423.us, %for.cond386.for.end421_crit_edge.us ], [ %add17, %for.body381.lr.ph ]
%kstart225.54336.us = phi i32 [ %add422.us, %for.cond386.for.end421_crit_edge.us ], [ 0, %for.body381.lr.ph ]
%4 = trunc i64 %indvars.iv4991.us to i32
%5 = xor i32 %4, -1
%add382.us = add i32 %add377, %5
%sub383.us = add i32 %add382.us, %kstart225.54336.us
br label %for.body388.us
; CHECK: for.body388.us:
; CHECK: call void @llvm.prefetch
for.body388.us: ; preds = %for.inc418.us, %for.body381.us
%kk224.3.in4330.us = phi i32 [ %sub383.us, %for.body381.us ], [ %kk224.3.us, %for.inc418.us ]
%jj223.34329.us = phi i32 [ %add377, %for.body381.us ], [ %inc419.us, %for.inc418.us ]
%kk224.3.us = add nsw i32 %kk224.3.in4330.us, 1
%mul389.us = shl nsw i32 %kk224.3.us, 1
%idxprom390.us = sext i32 %mul389.us to i64
%arrayidx391.us = getelementptr inbounds double, ptr %call18, i64 %idxprom390.us
%6 = load double, ptr %arrayidx391.us, align 8
%call396.us = call double @Zabs(double %6)
br label %for.inc418.us
for.inc418.us: ; preds = %for.body388.us
%inc419.us = add nsw i32 %jj223.34329.us, 1
%cmp387.us = icmp slt i32 %inc419.us, %add17
br i1 %cmp387.us, label %for.body388.us, label %for.cond386.for.end421_crit_edge.us
for.cond386.for.end421_crit_edge.us: ; preds = %for.inc418.us
%add422.us = add nsw i32 %kstart225.54336.us, %stride226.54337.us
%dec423.us = add nsw i32 %stride226.54337.us, -1
%indvars.iv.next4992.us = add nsw i64 %indvars.iv4991.us, 1
br label %for.body381.us
sw.epilog2454: ; preds = %for.cond372.preheader, %if.else319, %sw.bb213, %if.end12
ret i32 0
}
declare double @llvm.fabs.f64(double)
declare dso_local double @Zabs(double) local_unnamed_addr
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg)
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