File: 2008-02-12-SMAXTripCount.ll

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llvm-toolchain-13 1%3A13.0.1-6~deb11u1
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; RUN: opt < %s -scalar-evolution -analyze -enable-new-pm=0 | FileCheck %s
; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s
; PR2002

; CHECK: Loop %loop: backedge-taken count is (100 + (-100 smax %n))
define void @foo(i8 %n) {
entry:
	br label %loop
loop:
	%i = phi i8 [ -100, %entry ], [ %i.inc, %next ]
	%cond = icmp slt i8 %i, %n
	br i1 %cond, label %next, label %return
next:
        %i.inc = add i8 %i, 1
	br label %loop
return:
	ret void
}