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
65
66
67
68
69
70
71
72
73
74
75
76
|
;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2023-2024 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; REQUIRES: llvm-14-plus
; RUN: igc_opt --opaque-pointers %s -S --inputcs --platformdg2 -o - -igc-constant-coalescing -dce | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f80:128:128-v16:16:16-v24:32:32-v32:32:32-v48:64:64-v64:64:64-v96:128:128-v128:128:128-v192:256:256-v256:256:256-v512:512:512-v1024:1024:1024-a:64:64-f80:128:128-n8:16:32:64"
; Test that the load is unmodified, load size matches supported LSC size
define i32 @f0() {
entry:
%base_addr = call i64 @llvm.genx.GenISA.RuntimeValue.i64(i32 0)
%adr = add i64 %base_addr, 12
%ptr = inttoptr i64 %adr to ptr addrspace(2)
%data = load <3 x i32>, ptr addrspace(2) %ptr, align 16
%a = extractelement <3 x i32> %data, i32 0
%b = extractelement <3 x i32> %data, i32 1
%c = extractelement <3 x i32> %data, i32 2
%ab = add i32 %a, %b
%abc = add i32 %ab, %c
ret i32 %abc
}
; CHECK-LABEL: define i32 @f0
; CHECK: [[PTR:%.*]] = inttoptr i64 %adr to ptr addrspace(2)
; CHECK: [[DATA:%.*]] = load <3 x i32>, ptr addrspace(2) [[PTR]], align 16
; CHECK: [[A:%.*]] = extractelement <3 x i32> [[DATA]], i32 0
; CHECK: [[B:%.*]] = extractelement <3 x i32> [[DATA]], i32 1
; CHECK: [[C:%.*]] = extractelement <3 x i32> [[DATA]], i32 2
; CHECK: [[AB:%.*]] = add i32 [[A]], [[B]]
; CHECK: [[ABC:%.*]] = add i32 [[AB]], [[C]]
; CHECK: ret i32 [[ABC]]
; Test that the load size is reduced to the smallest size supported by LSC
define i32 @f1() {
entry:
%base_addr = call i64 @llvm.genx.GenISA.RuntimeValue.i64(i32 0)
%adr = add i64 %base_addr, 16
%ptr = inttoptr i64 %adr to ptr addrspace(2)
%data = load <8 x i32>, ptr addrspace(2) %ptr, align 8
%a = extractelement <8 x i32> %data, i32 0
%b = extractelement <8 x i32> %data, i32 1
%c = extractelement <8 x i32> %data, i32 2
%ab = add i32 %a, %b
%abc = add i32 %ab, %c
ret i32 %abc
}
; CHECK-LABEL: define i32 @f1
; CHECK: [[ADDR:%.*]] = add i64 %base_addr, 16
; CHECK: [[PTR:%.*]] = inttoptr i64 [[ADDR]] to ptr addrspace(2)
; CHECK: [[DATA:%.*]] = load <3 x i32>, ptr addrspace(2) [[PTR]], align 8
; CHECK: [[A:%.*]] = extractelement <3 x i32> [[DATA]], i32 0
; CHECK: [[B:%.*]] = extractelement <3 x i32> [[DATA]], i32 1
; CHECK: [[C:%.*]] = extractelement <3 x i32> [[DATA]], i32 2
; CHECK: [[AB:%.*]] = add i32 [[A]], [[B]]
; CHECK: [[ABC:%.*]] = add i32 [[AB]], [[C]]
; CHECK: ret i32 [[ABC]]
; Function Attrs: nounwind readnone
declare i64 @llvm.genx.GenISA.RuntimeValue.i64(i32) #0
attributes #0 = { nounwind readnone }
!igc.functions = !{!3, !4}
!1 = !{!2}
!2 = !{!"function_type", i32 0}
!3 = !{ptr @f0, !1}
!4 = !{ptr @f1, !1}
|
