unsigned_wrap_ult.ll
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; Unsigned wrap-around check.
;
; for (int i = -1; i < 65 ; i ++ )
; if ( (unsigned)i < 64 )
; A[i] = 42;
define void @func(double* noalias nonnull %A) {
entry:
br label %for
for:
%j = phi i32 [-1, %entry], [%j.inc, %inc]
%j.cmp = icmp slt i32 %j, 65
br i1 %j.cmp, label %body, label %exit
body:
%inbounds = icmp ult i32 %j, 64
br i1 %inbounds, label %ifinbounds, label %ifoutbounds
ifinbounds:
%A_idx = getelementptr inbounds double, double* %A, i32 %j
store double 42.0, double* %A_idx
br label %inc
ifoutbounds:
br label %inc
inc:
%j.inc = add nuw nsw i32 %j, 1
br label %for
exit:
br label %return
return:
ret void
}
; CHECK: Region: %for---%return
; CHECK: Domain :=
; CHECK-NEXT: { Stmt_ifinbounds[i0] : 0 < i0 <= 64 };