llvm-project
48 строк · 1.3 Кб
1; RUN: opt %loadNPMPolly '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
2
3; void f(long A[], long N) {
4; long i;
5; if (true)
6; for (i = 0; i < N; ++i)
7; A[i] = i;
8; else
9; for (j = 0; j < N; ++j)
10; A[j] = j;
11; }
12
13target 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"
14
15define void @f(ptr %A, i64 %N) nounwind {
16entry:
17fence seq_cst
18br i1 true, label %next, label %next2
19
20next2:
21br i1 true, label %for.j, label %return
22
23for.j:
24%indvar2 = phi i64 [ 0, %next2], [ %indvar2.next2, %for.j]
25%scevgep2 = getelementptr i64, ptr %A, i64 %indvar2
26store i64 %indvar2, ptr %scevgep2
27%indvar2.next2 = add nsw i64 %indvar2, 1
28%exitcond2 = icmp eq i64 %indvar2.next2, %N
29br i1 %exitcond2, label %return, label %for.j
30
31next:
32br i1 true, label %for.i, label %return
33
34for.i:
35%indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
36%scevgep = getelementptr i64, ptr %A, i64 %indvar
37store i64 %indvar, ptr %scevgep
38%indvar.next = add nsw i64 %indvar, 1
39%exitcond = icmp eq i64 %indvar.next, %N
40br i1 %exitcond, label %return, label %for.i
41
42return:
43fence seq_cst
44ret void
45}
46
47; CHECK: Valid Region for Scop: next => return
48; CHECK: Valid Region for Scop: next2 => return
49