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; RUN: opt -analyze -scalar-evolution -scalar-evolution < %s | FileCheck %s
define void @bad.nsw() {
; CHECK-LABEL: Classifying expressions for: @bad.nsw
; CHECK-LABEL: Classifying expressions for: @bad.nsw
entry:
br label %loop
loop:
%i = phi i8 [ -1, %entry ], [ %i.inc, %loop ]
; CHECK: %i = phi i8 [ -1, %entry ], [ %i.inc, %loop ]
; CHECK-NEXT: --> {-1,+,-128}<nw><%loop>
; CHECK-NOT: --> {-1,+,-128}<nsw><%loop>
%counter = phi i8 [ 0, %entry ], [ %counter.inc, %loop ]
%i.inc = add i8 %i, -128
%i.sext = sext i8 %i to i16
%counter.inc = add i8 %counter, 1
%continue = icmp eq i8 %counter, 1
br i1 %continue, label %exit, label %loop
exit:
ret void
}
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