xref: /llvm-project/polly/test/ScopInfo/read-only-scalars.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb -polly-analyze-read-only-scalars=false '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
2; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb -polly-analyze-read-only-scalars=true  '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s -check-prefix=SCALARS
3
4; CHECK-NOT: Memref_scalar
5
6; SCALARS: float MemRef_scalar; // Element size 4
7
8; SCALARS: ReadAccess :=  [Reduction Type: NONE] [Scalar: 1]
9; SCALARS:     { Stmt_stmt1[i0] -> MemRef_scalar[] };
10; SCALARS: ReadAccess :=       [Reduction Type: NONE] [Scalar: 1]
11; SCALARS:     { Stmt_stmt1[i0] -> MemRef_scalar2[] };
12
13
14define void @foo(ptr noalias %A, ptr %B, float %scalar, float %scalar2) {
15entry:
16  br label %loop
17
18loop:
19  %indvar = phi i64 [0, %entry], [%indvar.next, %loop.backedge]
20  br label %stmt1
21
22stmt1:
23  %val = load float, ptr %A
24  %sum = fadd float %val, %scalar
25  store float %sum, ptr %A
26  store float %scalar2, ptr %B
27  br label %loop.backedge
28
29loop.backedge:
30  %indvar.next = add i64 %indvar, 1
31  %cond = icmp sle i64 %indvar, 100
32  br i1 %cond, label %loop, label %exit
33
34exit:
35  ret void
36}
37