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
53
54
55
56
57
58
59
60
61
62
63
64
|
;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2025 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; REQUIRES: llvm-14-plus
; RUN: igc_opt --opaque-pointers --igc-gep-loop-strength-reduction -S < %s 2>&1 | FileCheck %s
;
; Don't optimize SCEVAddRecExpr based on boolean type.
;
; kernel void test(global float* p, int n) {
; for (int i = 0; i < n; i++) {
; *p += p[i & 1];
; }
; }
define spir_kernel void @test(ptr addrspace(1) %p, i32 %n) {
entry:
%cmp1 = icmp slt i32 0, %n
br i1 %cmp1, label %for.body.lr.ph, label %for.end
; CHECK-LABEL: for.body.lr.ph:
; CHECK-NEXT: br label %for.body
for.body.lr.ph: ; preds = %entry
br label %for.body
; CHECK-LABEL: for.body:
; CHECK-NEXT: %i.02 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
; CHECK-NEXT: %and = and i32 %i.02, 1
; CHECK-NEXT: %idxprom = zext i32 %and to i64
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr addrspace(1) %p, i64 %idxprom
; CHECK-NEXT: %0 = load i32, ptr addrspace(1) %arrayidx, align 4
; CHECK-NEXT: %add = add nsw i32 %0, 1
; CHECK-NEXT: store i32 %add, ptr addrspace(1) %arrayidx, align 4
; CHECK-NEXT: %inc = add nuw nsw i32 %i.02, 1
; CHECK-NEXT: %cmp = icmp slt i32 %inc, %n
; CHECK-NEXT: br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
for.body: ; preds = %for.body.lr.ph, %for.body
%i.02 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
%and = and i32 %i.02, 1
%idxprom = zext i32 %and to i64
%arrayidx = getelementptr inbounds i32, ptr addrspace(1) %p, i64 %idxprom
%0 = load i32, ptr addrspace(1) %arrayidx, align 4
%add = add nsw i32 %0, 1
store i32 %add, ptr addrspace(1) %arrayidx, align 4
%inc = add nuw nsw i32 %i.02, 1
%cmp = icmp slt i32 %inc, %n
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
for.cond.for.end_crit_edge: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
ret void
}
!igc.functions = !{!0}
!0 = !{ptr @test, !1}
!1 = !{!2}
!2 = !{!"function_type", i32 0}
|
