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; RUN: opt < %s -loop-accesses -analyze | FileCheck %s
; Test to confirm LAA will find store to invariant address.
; Inner loop has a store to invariant address.
;
; for(; i < itr; i++) {
; for(; j < itr; j++) {
; var1[j] = ++var2[i] + var1[j];
; }
; }
; CHECK: Store to invariant address was found in loop.
define void @foo(i32* nocapture %var1, i32* nocapture %var2, i32 %itr) #0 {
entry:
%cmp20 = icmp sgt i32 %itr, 0
br i1 %cmp20, label %for.cond1.preheader, label %for.end11
for.cond1.preheader: ; preds = %entry, %for.inc9
%indvars.iv23 = phi i64 [ %indvars.iv.next24, %for.inc9 ], [ 0, %entry ]
%j.022 = phi i32 [ %j.1.lcssa, %for.inc9 ], [ 0, %entry ]
%cmp218 = icmp slt i32 %j.022, %itr
br i1 %cmp218, label %for.body3.lr.ph, label %for.inc9
for.body3.lr.ph: ; preds = %for.cond1.preheader
%arrayidx = getelementptr inbounds i32, i32* %var2, i64 %indvars.iv23
%0 = sext i32 %j.022 to i64
br label %for.body3
for.body3: ; preds = %for.body3, %for.body3.lr.ph
%indvars.iv = phi i64 [ %0, %for.body3.lr.ph ], [ %indvars.iv.next, %for.body3 ]
%1 = load i32, i32* %arrayidx, align 4
%inc = add nsw i32 %1, 1
store i32 %inc, i32* %arrayidx, align 4
%arrayidx5 = getelementptr inbounds i32, i32* %var1, i64 %indvars.iv
%2 = load i32, i32* %arrayidx5, align 4
%add = add nsw i32 %inc, %2
store i32 %add, i32* %arrayidx5, align 4
%indvars.iv.next = add nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %itr
br i1 %exitcond, label %for.inc9, label %for.body3
for.inc9: ; preds = %for.body3, %for.cond1.preheader
%j.1.lcssa = phi i32 [ %j.022, %for.cond1.preheader ], [ %itr, %for.body3 ]
%indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1
%lftr.wideiv25 = trunc i64 %indvars.iv.next24 to i32
%exitcond26 = icmp eq i32 %lftr.wideiv25, %itr
br i1 %exitcond26, label %for.end11, label %for.cond1.preheader
for.end11: ; preds = %for.inc9, %entry
ret void
}
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