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; RUN: opt %loadPolly -polly-print-detect -disable-output < %s | FileCheck %s
;
; Check that we will recognize this SCoP.
;
; void f(int *A, long N) {
; int j = 0;
; while (N > j) {
; int x = A[0];
; int i = 1;
; do {
; A[x] = 42;
; A += x;
; } while (i++ < N);
; }
; }
;
; CHECK: Valid Region for Scop: bb1 => bb0
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %A, i64 %N) {
bb:
br label %bb0
bb0:
%j = phi i64 [ %j.next, %bb1 ], [ 1, %bb ]
%tmp = load i32, ptr %A, align 4
%exitcond0 = icmp sgt i64 %N, %j
%j.next = add nuw nsw i64 %j, 1
br i1 %exitcond0, label %bb1, label %bb13
bb1: ; preds = %bb7, %bb0
%i = phi i64 [ %i.next, %bb1 ], [ 1, %bb0 ]
%.0 = phi ptr [ %A, %bb0 ], [ %tmp12, %bb1 ]
%tmp8 = sext i32 %tmp to i64
%tmp9 = getelementptr inbounds i32, ptr %.0, i64 %tmp8
store i32 42, ptr %tmp9, align 4
%tmp11 = sext i32 %tmp to i64
%tmp12 = getelementptr inbounds i32, ptr %.0, i64 %tmp11
%i.next = add nuw nsw i64 %i, 1
%exitcond = icmp ne i64 %i, %N
br i1 %exitcond, label %bb1, label %bb0
bb13: ; preds = %bb1
ret void
}
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