llvm-project
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1; RUN: opt %loadNPMPolly '-passes=print<polly-ast>' -disable-output < %s | FileCheck %s
2target 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-n8:16:32:64"
3
4@A = common global [1024 x i32] zeroinitializer, align 16 ; <ptr> [#uses=3]
5
6define void @bar(i64 %n) nounwind {
7bb:
8fence seq_cst
9br label %bb1
10
11bb1: ; preds = %bb3, %bb
12%i.0 = phi i64 [ 0, %bb ], [ %tmp, %bb3 ] ; <i64> [#uses=3]
13%scevgep = getelementptr [1024 x i32], ptr @A, i64 0, i64 %i.0 ; <ptr> [#uses=1]
14%exitcond = icmp ne i64 %i.0, %n ; <i1> [#uses=1]
15br i1 %exitcond, label %bb2, label %bb4
16
17bb2: ; preds = %bb1
18store i32 1, ptr %scevgep
19br label %bb3
20
21bb3: ; preds = %bb2
22%tmp = add nsw i64 %i.0, 1 ; <i64> [#uses=1]
23br label %bb1
24
25bb4: ; preds = %bb1
26fence seq_cst
27ret void
28}
29
30define i32 @main() nounwind {
31bb:
32call void @llvm.memset.p0.i64(ptr @A, i8 0, i64 4096, i32 1, i1 false)
33call void @bar(i64 1024)
34br label %bb1
35
36bb1: ; preds = %bb7, %bb
37%indvar = phi i64 [ %indvar.next, %bb7 ], [ 0, %bb ] ; <i64> [#uses=3]
38%scevgep = getelementptr [1024 x i32], ptr @A, i64 0, i64 %indvar ; <ptr> [#uses=1]
39%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
40%tmp = icmp slt i32 %i.0, 1024 ; <i1> [#uses=1]
41br i1 %tmp, label %bb2, label %bb8
42
43bb2: ; preds = %bb1
44%tmp3 = load i32, ptr %scevgep ; <i32> [#uses=1]
45%tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1]
46br i1 %tmp4, label %bb5, label %bb6
47
48bb5: ; preds = %bb2
49br label %bb9
50
51bb6: ; preds = %bb2
52br label %bb7
53
54bb7: ; preds = %bb6
55%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
56br label %bb1
57
58bb8: ; preds = %bb1
59br label %bb9
60
61bb9: ; preds = %bb8, %bb5
62%.0 = phi i32 [ 1, %bb5 ], [ 0, %bb8 ] ; <i32> [#uses=1]
63ret i32 %.0
64}
65
66declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i32, i1) nounwind
67
68; CHECK: for (int c0 = 0; c0 < n; c0 += 1)
69; CHECK: Stmt_bb2(c0);
70
71