1*35f70200SMichael Kruse; RUN: opt %loadPolly -polly-scops -polly-opt-isl -polly-codegen -polly-scops -polly-codegen -S < %s | FileCheck %s
2*35f70200SMichael Kruse; RUN: opt %loadPolly "-passes=scop(polly-opt-isl,polly-codegen,polly-codegen)" -S < %s | FileCheck %s
3*35f70200SMichael Kruse; RUN: opt %loadPolly "-passes=scop(polly-opt-isl,polly-codegen),scop(polly-codegen)" -S < %s | FileCheck %s
4*35f70200SMichael Kruse;
5*35f70200SMichael Kruse; llvm.org/PR34441
6*35f70200SMichael Kruse; Properly handle multiple -polly-scops/-polly-codegen in the same
7*35f70200SMichael Kruse; RegionPassManager. -polly-codegen must not reuse the -polly-ast analysis the
8*35f70200SMichael Kruse; was created for the first -polly-scops pass.
9*35f70200SMichael Kruse; The current solution is that only the first -polly-codegen is allowed to
10*35f70200SMichael Kruse; generate code, the second detects it is re-using an IslAst that belongs to a
11*35f70200SMichael Kruse; different ScopInfo.
12*35f70200SMichael Kruse;
13*35f70200SMichael Kruse; int a, b, c;
14*35f70200SMichael Kruse;
15*35f70200SMichael Kruse; int main () {
16*35f70200SMichael Kruse;  while (a++)
17*35f70200SMichael Kruse;    while (b) {
18*35f70200SMichael Kruse;        c = 0;
19*35f70200SMichael Kruse;        break;
20*35f70200SMichael Kruse;      }
21*35f70200SMichael Kruse;  return 0;
22*35f70200SMichael Kruse; }
23*35f70200SMichael Kruse;
24*35f70200SMichael Krusetarget datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
25*35f70200SMichael Kruse
26*35f70200SMichael Kruse@a = common global i32 0, align 4
27*35f70200SMichael Kruse@b = common global i32 0, align 4
28*35f70200SMichael Kruse@c = common global i32 0, align 4
29*35f70200SMichael Kruse
30*35f70200SMichael Kruse; Function Attrs: nounwind uwtable
31*35f70200SMichael Krusedefine i32 @main() {
32*35f70200SMichael Kruseentry:
33*35f70200SMichael Kruse  %retval = alloca i32, align 4
34*35f70200SMichael Kruse  store i32 0, i32* %retval, align 4
35*35f70200SMichael Kruse  %.pre = load i32, i32* @a, align 4
36*35f70200SMichael Kruse  br label %while.cond
37*35f70200SMichael Kruse
38*35f70200SMichael Krusewhile.cond:                                       ; preds = %while.end, %entry
39*35f70200SMichael Kruse  %0 = phi i32 [ %inc, %while.end ], [ %.pre, %entry ]
40*35f70200SMichael Kruse  %inc = add nsw i32 %0, 1
41*35f70200SMichael Kruse  store i32 %inc, i32* @a, align 4
42*35f70200SMichael Kruse  %tobool = icmp ne i32 %0, 0
43*35f70200SMichael Kruse  br i1 %tobool, label %while.body, label %while.end4
44*35f70200SMichael Kruse
45*35f70200SMichael Krusewhile.body:                                       ; preds = %while.cond
46*35f70200SMichael Kruse  %1 = load i32, i32* @b, align 4
47*35f70200SMichael Kruse  %tobool2 = icmp ne i32 %1, 0
48*35f70200SMichael Kruse  br i1 %tobool2, label %while.body3, label %while.end
49*35f70200SMichael Kruse
50*35f70200SMichael Krusewhile.body3:                                      ; preds = %while.body
51*35f70200SMichael Kruse  store i32 0, i32* @c, align 4
52*35f70200SMichael Kruse  br label %while.end
53*35f70200SMichael Kruse
54*35f70200SMichael Krusewhile.end:                                        ; preds = %while.body3, %while.body
55*35f70200SMichael Kruse  br label %while.cond
56*35f70200SMichael Kruse
57*35f70200SMichael Krusewhile.end4:                                       ; preds = %while.cond
58*35f70200SMichael Kruse  ret i32 0
59*35f70200SMichael Kruse}
60*35f70200SMichael Kruse
61*35f70200SMichael Kruse
62*35f70200SMichael Kruse; CHECK: polly.start:
63*35f70200SMichael Kruse; CHECK-NOT: polly.start:
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