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; RUN: opt -S -verify-loop-info -irce-print-changed-loops -passes=irce -irce-min-eliminated-checks=51 < %s 2>&1 | FileCheck %s --check-prefixes=CHECK-NO
; RUN: opt -S -verify-loop-info -irce-print-changed-loops -passes=irce -irce-min-eliminated-checks=50 < %s 2>&1 | FileCheck %s --check-prefixes=CHECK-YES
; CHECK-YES: constrained Loop
; CHECK-NO-NOT: constrained Loop
declare void @bar(i32)
define i32 @foo(ptr %arr_a, ptr %a_len_ptr, i32 %n) {
entry:
%len.a = load i32, ptr %a_len_ptr, !range !0
%first.itr.check = icmp sgt i32 %n, 0
br i1 %first.itr.check, label %loop, label %exit, !prof !1
loop:
%idx = phi i32 [ 0, %entry ] , [ %idx.next, %backedge ]
%abc.a = icmp slt i32 %idx, %len.a
br i1 %abc.a, label %in.bounds.a, label %backedge, !prof !2
in.bounds.a:
%addr.a = getelementptr i32, ptr %arr_a, i32 %idx
%val = load i32, ptr %addr.a
call void @bar(i32 %val)
br label %backedge
backedge:
%idx.next = add i32 %idx, 1
%next = icmp slt i32 %idx.next, %n
br i1 %next, label %loop, label %exit, !prof !3
exit:
ret i32 0
}
!0 = !{i32 0, i32 2147483647}
!1 = !{!"branch_weights", i32 1024, i32 1}
!2 = !{!"branch_weights", i32 1, i32 1}
!3 = !{!"branch_weights", i32 99, i32 1}
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