1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
; RUN: opt %loadPolly -polly-print-scops -polly-invariant-load-hoisting=true -polly-ignore-aliasing -disable-output < %s | FileCheck %s
;
; CHECK: Invariant Accesses:
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [N] -> { Stmt_bb5[i0] -> MemRef_BP[0] };
; CHECK-NEXT: Execution Context: [N] -> { : N >= 514 }
;
; void f(int *BP, int *A, int N) {
; for (int i = 0; i < N; i++)
; if (i > 512)
; A[i] = *BP;
; else
; A[i] = 0;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %BP, ptr %A, i32 %N) {
bb:
%tmp = sext i32 %N to i64
br label %bb1
bb1: ; preds = %bb11, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb11 ], [ 0, %bb ]
%tmp2 = icmp slt i64 %indvars.iv, %tmp
br i1 %tmp2, label %bb3, label %bb12
bb3: ; preds = %bb1
%tmp4 = icmp sgt i64 %indvars.iv, 512
br i1 %tmp4, label %bb5, label %bb8
bb5: ; preds = %bb3
%tmp9a = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%inv = load i32, ptr %BP
store i32 %inv, ptr %tmp9a, align 4
br label %bb10
bb8: ; preds = %bb3
%tmp9b = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
store i32 0, ptr %tmp9b, align 4
br label %bb10
bb10: ; preds = %bb8, %bb5
br label %bb11
bb11: ; preds = %bb10
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb12: ; preds = %bb1
ret void
}
|
