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| ; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
; void f(long A[], long N) {
; long i;
; if (true)
; for (i = 0; i < N; ++i)
; A[i] = i;
; else
; for (j = 0; j < N; ++j)
; A[j] = j;
; }
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"
declare i64 @foo()
define void @f(i64* %A, i64 %N) nounwind {
entry:
fence seq_cst
br i1 true, label %next, label %next2
next2:
br i1 true, label %for.j, label %return
for.j:
%indvar2 = phi i64 [ 0, %next2], [ %indvar2.next2, %for.j]
%scevgep2 = getelementptr i64, i64* %A, i64 %indvar2
store i64 %indvar2, i64* %scevgep2
%indvar2.next2 = add nsw i64 %indvar2, 1
%exitcond2 = icmp eq i64 %indvar2.next2, %N
br i1 %exitcond2, label %return, label %for.j
next:
br i1 true, label %for.i, label %return
for.i:
%indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
%scevgep = getelementptr i64, i64* %A, i64 %indvar
store i64 %indvar, i64* %scevgep
%i = call i64 @foo()
%indvar.next = add nsw i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %N
br i1 %exitcond, label %return, label %for.i
return:
br i1 true, label %return_a, label %return_b
return_a:
br label %return_join
return_b:
br label %return_join
return_join:
fence seq_cst
ret void
}
; CHECK-NOT: Valid Region for Scop: next => return
; CHECK: Valid Region for Scop: next2 => return
|