1 ; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s -check-prefix=PHI
3 ; void f(long A[], long N, long *init_ptr) {
5 ; long i_non_canonical;
7 ; for (i = 0; i < N; ++i) {
9 ; i_non_canonical = init;
10 ; for (i = 0; i < N; ++i) {
11 ; A[i] = i_non_canonical;
12 ; i_non_canonical += 1;
17 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
19 define void @f(ptr noalias %A, i64 %N, ptr noalias %init_ptr) nounwind {
24 %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
25 %indvar.i.next = add nsw i64 %indvar.i, 1
29 %init = load i64, ptr %init_ptr
33 %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
34 %indvar.j.non_canonical = phi i64 [ %init, %entry.next ], [ %indvar.j.non_canonical.next, %for.j ]
35 %scevgep = getelementptr i64, ptr %A, i64 %indvar.j
36 store i64 %indvar.j.non_canonical, ptr %scevgep
37 %indvar.j.next = add nsw i64 %indvar.j, 1
38 %indvar.j.non_canonical.next = add nsw i64 %indvar.j.non_canonical, 1
39 %exitcond.j = icmp eq i64 %indvar.j.next, %N
40 br i1 %exitcond.j, label %for.i.end, label %for.j
43 %exitcond.i = icmp eq i64 %indvar.i.next, %N
44 br i1 %exitcond.i, label %return, label %for.i
50 ; PHI: Valid Region for Scop: for.i => return