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; RUN: opt %loadPolly -polly-print-detect -disable-output < %s | FileCheck %s
; RUN: opt %loadPolly -polly-codegen -verify-region-info -disable-output < %s
;
; This is a scop directly precedented by a region, i.e. the scop's entry is the
; region's exit block. This test is to ensure that the RegionInfo is correctly
; preserved.
;
; CHECK: Valid Region for Scop: region2 => return
;
define void @f1(ptr %A, i64 %N) nounwind {
entry:
br label %region1
region1:
%indvar1 = phi i64 [ 0, %entry ], [ %indvar1.next, %region1 ]
fence seq_cst
%indvar1.next = add nsw i64 %indvar1, 1
%exitcond1 = icmp eq i64 %indvar1.next, %N
br i1 %exitcond1, label %region2, label %region1
region2:
%indvar2 = phi i64 [ 0, %region1 ], [ %indvar2.next, %region2 ]
%scevgep2 = getelementptr i64, ptr %A, i64 %indvar2
store i64 %indvar2, ptr %scevgep2
%indvar2.next = add nsw i64 %indvar2, 1
%exitcond2 = icmp eq i64 %indvar2.next, %N
br i1 %exitcond2, label %return, label %region2
return:
ret void
}
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