xref: /llvm-project/polly/test/CodeGen/OpenMP/loop-body-references-outer-values.ll (revision 94473f4db6a6f5f12d7c4081455b5b596094eac5)
1; RUN: opt %loadNPMPolly -polly-parallel -polly-parallel-force '-passes=print<polly-ast>' -disable-output < %s | FileCheck %s -check-prefix=AST
2; RUN: opt %loadNPMPolly -polly-parallel -polly-parallel-force -passes=polly-codegen -S < %s | FileCheck %s -check-prefix=IR
3
4; Make sure we correctly forward the reference to 'A' to the OpenMP subfunction.
5;
6; void loop_references_outer_ids(float *A) {
7;   for (long i = 0; i < 100; i++)
8;     A[i] = i;
9; }
10
11
12; AST: #pragma simd
13; AST: #pragma omp parallel for
14; AST: for (int c0 = 0; c0 <= 99; c0 += 1)
15; AST:   Stmt_for_body(c0);
16
17; IR-LABEL: polly.parallel.for:
18; IR-NEXT:  %polly.subfn.storeaddr.A = getelementptr inbounds nuw { ptr }, ptr %polly.par.userContext, i32 0, i32 0
19; IR-NEXT:  store ptr %A, ptr %polly.subfn.storeaddr.A
20
21target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
22
23define void @loop_references_outer_ids(ptr %A) {
24entry:
25  br label %for.cond
26
27for.cond:                                         ; preds = %for.inc, %entry
28  %i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
29  %exitcond = icmp ne i64 %i.0, 100
30  br i1 %exitcond, label %for.body, label %for.end
31
32for.body:                                         ; preds = %for.cond
33  %conv = sitofp i64 %i.0 to float
34  %arrayidx = getelementptr inbounds float, ptr %A, i64 %i.0
35  store float %conv, ptr %arrayidx, align 4
36  br label %for.inc
37
38for.inc:                                          ; preds = %for.body
39  %inc = add nsw i64 %i.0, 1
40  br label %for.cond
41
42for.end:                                          ; preds = %for.cond
43  ret void
44}
45