blob: 0af9d7482642eb9103e386fe34011e7eb2c0fc68 [file] [log] [blame]
Tobias Grosser6e6264c2016-08-15 13:27:49 +00001; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
Johannes Doerfert3e48ee22016-04-29 10:44:41 +00002;
Johannes Doerfert99ec00a2016-04-29 10:47:07 +00003; Check that we model the execution context correctly.
Johannes Doerfert3e48ee22016-04-29 10:44:41 +00004;
5; void f(unsigned *I, unsigned *A, int c) {
6; for (unsigned i = c; i < 10; i++)
7; A[i] += *I;
8; }
9;
10; CHECK: Invariant Accesses: {
11; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
12; CHECK-NEXT: [c] -> { Stmt_for_body[i0] -> MemRef_I[0] };
13; CHECK-NEXT: Execution Context: [c] -> { : 0 <= c <= 9 }
14; CHECK-NEXT: }
15;
16target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
17
18define void @f(i32* %I, i32* %A, i64 %c) {
19entry:
20 br label %for.cond
21
22for.cond: ; preds = %for.inc, %entry
23 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ %c, %entry ]
24 %exitcond = icmp ult i64 %indvars.iv, 10
25 br i1 %exitcond, label %for.body, label %for.end
26
27for.body: ; preds = %for.cond
28 %tmp = load i32, i32* %I, align 4
29 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
30 %tmp1 = load i32, i32* %arrayidx, align 4
31 %add = add i32 %tmp1, %tmp
32 store i32 %add, i32* %arrayidx, align 4
33 br label %for.inc
34
35for.inc: ; preds = %for.body
36 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
37 br label %for.cond
38
39for.end: ; preds = %for.cond
40 ret void
41}