1; RUN: opt %loadPolly -polly-codegen -polly-allow-nonaffine-loops \
2; RUN: -S < %s | FileCheck %s
3
4; This test verifies that values defined in another scop statement and used by
5; PHI-nodes in non-affine regions are code generated correctly.
6
7; CHECK: polly.stmt.bb3.entry:
8; CHECK-NEXT:   %j.0.phiops.reload = load i64, i64* %j.0.phiops
9; CHECK-NEXT:   br label %polly.stmt.bb3
10
11; CHECK: polly.stmt.bb3:
12; CHECK-NEXT:   %polly.subregion.iv = phi i32 [ %polly.subregion.iv.inc, %polly.stmt.bb9 ], [ 0, %polly.stmt.bb3.entry ]
13; CHECK-NEXT:   %polly.j.0 = phi i64 [ %j.0.phiops.reload, %polly.stmt.bb3.entry ], [ %p_tmp10, %polly.stmt.bb9 ]
14
15;    void foo(long A[], float B[], long *x) {
16;      for (long i = 0; i < 1024; i++)
17;        for (long j = *x; j < i * i; j++)
18;          B[42]++;
19;    }
20;
21target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
22
23define void @foo(i64* %A, float* %B, i64* %xptr) {
24bb:
25  br label %bb1
26
27bb1:                                              ; preds = %bb12, %bb
28  %i.0 = phi i64 [ 0, %bb ], [ %tmp13, %bb12 ]
29  %exitcond = icmp ne i64 %i.0, 1024
30  br i1 %exitcond, label %bb2, label %bb14
31
32bb2:                                              ; preds = %bb1
33  %x = load i64, i64* %xptr
34  br label %bb3
35
36bb3:                                              ; preds = %bb9, %bb2
37  %j.0 = phi i64 [ %x, %bb2 ], [ %tmp10, %bb9 ]
38  %tmp = mul nsw i64 %i.0, %i.0
39  %tmp4 = icmp slt i64 %j.0, %tmp
40  br i1 %tmp4, label %bb5, label %bb11
41
42bb5:                                              ; preds = %bb3
43  %tmp6 = getelementptr inbounds float, float* %B, i64 42
44  %tmp7 = load float, float* %tmp6, align 4
45  %tmp8 = fadd float %tmp7, 1.000000e+00
46  store float %tmp8, float* %tmp6, align 4
47  br label %bb9
48
49bb9:                                              ; preds = %bb5
50  %tmp10 = add nuw nsw i64 %j.0, 1
51  br label %bb3
52
53bb11:                                             ; preds = %bb3
54  br label %bb12
55
56bb12:                                             ; preds = %bb11
57  %tmp13 = add nuw nsw i64 %i.0, 1
58  br label %bb1
59
60bb14:                                             ; preds = %bb1
61  ret void
62}
63