simple_loop_non_single_entry.ll
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; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
; void f(long A[], long N) {
; long i;
;
; if (true)
; goto loop;
; else
; goto loop;
;
; loop:
; for (i = 0; i < N; ++i)
; A[i] = i;
; }
; We will detect this scop even if the loop is not in lcssa form
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"
define void @f(i64* %A, i64 %N) nounwind {
entry:
fence seq_cst
br i1 true, label %then, label %else
then:
br label %for.i
else:
br label %for.i
for.i:
%indvar = phi i64 [ 0, %then ], [ 0, %else], [ %indvar.next, %for.i ]
%scevgep = getelementptr i64, i64* %A, i64 %indvar
store i64 %indvar, i64* %scevgep
%indvar.next = add nsw i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %N
br i1 %exitcond, label %return, label %for.i
return:
fence seq_cst
ret void
}
; CHECK: Valid Region for Scop