xref: /llvm-project/polly/test/CodeGen/invariant_load_address_space.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -passes=polly-codegen -polly-invariant-load-hoisting=true -S < %s | FileCheck %s
2;
3; CHECK-LABEL: polly.preload.begin:
4; CHECK-NEXT:    %polly.access.B = getelementptr i32, ptr addrspace(1) %B, i64 0
5; CHECK-NOT:     addrspacecast
6; CHECK-NEXT:    %polly.access.B.load = load i32, ptr addrspace(1) %polly.access.B
7;
8; CHECK-LABEL: polly.stmt.bb2:
9; CHECK-NEXT:    %[[offset:.*]] = shl nuw nsw i64 %polly.indvar, 2
10; CHECK-NEXT:    %scevgep = getelementptr i8, ptr %A, i64 %[[offset]]
11; CHECK-NEXT:    store i32 %polly.access.B.load, ptr %scevgep, align 4
12;
13;    void f(int *restrict A, int *restrict B) {
14;      for (int i = 0; i < 1024; i++)
15;        A[i] = *B;
16;    }
17;
18target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
19
20define void @f(ptr noalias %A, ptr addrspace(1) noalias %B) {
21bb:
22  br label %bb1
23
24bb1:                                              ; preds = %bb4, %bb
25  %indvars.iv = phi i64 [ %indvars.iv.next, %bb4 ], [ 0, %bb ]
26  %exitcond = icmp ne i64 %indvars.iv, 1024
27  br i1 %exitcond, label %bb2, label %bb5
28
29bb2:                                              ; preds = %bb1
30  %tmp = load i32, ptr addrspace(1) %B, align 4
31  %tmp3 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
32  store i32 %tmp, ptr %tmp3, align 4
33  br label %bb4
34
35bb4:                                              ; preds = %bb2
36  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
37  br label %bb1
38
39bb5:                                              ; preds = %bb1
40  ret void
41}
42