llvm-project

1
; RUN: opt %loadNPMPolly -passes=polly-codegen -S < %s | FileCheck %s -check-prefix=CHECK-CODE
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3
; void f(long A[], long N) {
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;   long i;
5
;
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;  if (true){
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;    i = 0;
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;    goto next;
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;  }else{
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;    i = 1;
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;    goto next;
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; }
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;
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; next:
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;  if (true)
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;    goto for.i;
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;  else
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;    goto for.i;
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;
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; for.i:
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;   for (i = 0; i < N; ++i)
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;     A[i] = i;
23
; }
24

25
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"
26

27
define void @f(ptr %A, i64 %N) nounwind {
28
entry:
29
  fence seq_cst
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  br i1 true, label %then1, label %else1
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32
then1:
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  br label %next
34

35
else1:
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  br label %next
37

38
next:
39
  %sg = getelementptr i64, ptr %A, i64 42
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  store i64 undef, ptr %sg
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  br i1 true, label %then, label %else
42

43
then:
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  br label %for.i.head
45

46
else:
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  br label %for.i.head
48

49
for.i.head:
50
  br label %for.i.head1
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52
for.i.head1:
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  br label %for.i
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55
for.i:
56
  %indvar = phi i64 [ 0, %for.i.head1], [ %indvar.next, %for.i ]
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  fence seq_cst
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  %scevgep = getelementptr i64, ptr %A, i64 %indvar
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  store i64 %indvar, ptr %scevgep
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  %indvar.next = add nsw i64 %indvar, 1
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  %exitcond = icmp eq i64 %indvar.next, %N
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  br i1 %exitcond, label %return, label %for.i
63

64
return:
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  fence seq_cst
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  ret void
67
}
68

69
; CHECK-CODE: polly.split_new_and_old
70
; CHECK-CODE: polly.merge_new_and_old
71