xref: /llvm-project/polly/test/ScopDetect/skip_function_attribute.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
2;
3; Verify polly skips this function
4;
5; CHECK-NOT: Valid Region for Scop
6;
7;    void polly_skip_me(int *A, int N) {
8;      for (int i = 0; i < N; i++)
9;        A[i] = A[i] * A[i] + A[i];
10;    }
11;
12target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
13
14define void @polly_skip_me(ptr %A, i32 %N) #0 {
15entry:
16  br label %entry.split
17
18entry.split:                                      ; preds = %entry
19  %cmp1 = icmp sgt i32 %N, 0
20  br i1 %cmp1, label %for.body.preheader, label %for.end
21
22for.body.preheader:                               ; preds = %entry.split
23  br label %for.body
24
25for.body:                                         ; preds = %for.body.preheader, %for.body
26  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
27  %arrayidx = getelementptr inbounds i32, ptr %A, i32 %i.02
28  %tmp = load i32, ptr %arrayidx, align 4
29  %mul = mul nsw i32 %tmp, %tmp
30  %add = add nsw i32 %mul, %tmp
31  %arrayidx3 = getelementptr inbounds i32, ptr %A, i32 %i.02
32  store i32 %add, ptr %arrayidx3, align 4
33  %inc = add nsw i32 %i.02, 1
34  %cmp = icmp slt i32 %inc, %N
35  br i1 %cmp, label %for.body, label %for.end.loopexit
36
37for.end.loopexit:                                 ; preds = %for.body
38  br label %for.end
39
40for.end:                                          ; preds = %for.end.loopexit, %entry.split
41  ret void
42}
43
44attributes #0 = { "polly.skip.fn" }
45