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; Check that we don't crash on corner cases.
; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=20 -o /dev/null
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @foo1() {
entry:
br label %for.body
for.body:
%phi = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%idx = zext i32 undef to i64
%add.ptr = getelementptr inbounds i64, i64* null, i64 %idx
%inc = add nuw nsw i64 %phi, 1
%cmp = icmp ult i64 %inc, 999
br i1 %cmp, label %for.body, label %for.exit
for.exit:
ret void
}
define void @foo2() {
entry:
br label %for.body
for.body:
%phi = phi i64 [ 0, %entry ], [ %inc, %for.body ]
%x = getelementptr i32, <4 x i32*> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
%inc = add nuw nsw i64 %phi, 1
%cmp = icmp ult i64 %inc, 999
br i1 %cmp, label %for.body, label %for.exit
for.exit:
ret void
}
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