xref: /llvm-project/polly/test/CodeGen/invariant_load_base_pointer.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly  -passes=polly-codegen -polly-invariant-load-hoisting=true -polly-ignore-aliasing -polly-process-unprofitable -S < %s | FileCheck %s
2;
3; CHECK-LABEL: polly.preload.begin:
4; CHECK-NEXT:    %polly.access.BPLoc = getelementptr ptr, ptr %BPLoc, i64 0
5; CHECK-NEXT:    %polly.access.BPLoc.load = load ptr, ptr %polly.access.BPLoc
6;
7; CHECK-LABEL: polly.stmt.bb2:
8; CHECK-NEXT:    %[[offset:.*]] = shl nuw nsw i64 %polly.indvar, 2
9; CHECK-NEXT:    %scevgep = getelementptr i8, ptr %polly.access.BPLoc.load, i64 %[[offset]]
10;
11;    void f(int **BPLoc) {
12;      for (int i = 0; i < 1024; i++)
13;        (*BPLoc)[i] = 0;
14;    }
15;
16target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
17
18define void @f(ptr %BPLoc) {
19bb:
20  br label %bb1
21
22bb1:                                              ; preds = %bb4, %bb
23  %indvars.iv = phi i64 [ %indvars.iv.next, %bb4 ], [ 0, %bb ]
24  %exitcond = icmp ne i64 %indvars.iv, 1024
25  br i1 %exitcond, label %bb2, label %bb5
26
27bb2:                                              ; preds = %bb1
28  %tmp = load ptr, ptr %BPLoc, align 8
29  %tmp3 = getelementptr inbounds i32, ptr %tmp, i64 %indvars.iv
30  store i32 0, ptr %tmp3, align 4
31  br label %bb4
32
33bb4:                                              ; preds = %bb2
34  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
35  br label %bb1
36
37bb5:                                              ; preds = %bb1
38  ret void
39}
40