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
77
78
79
80
81
82
83
84
85
86
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=hybrid < %s | FileCheck %s
;; Reduced from a larger test case. Checks that functions and kernels that use only dynamic lds
;; are lowered successfully. Previously they only worked if the kernel happened to also use static lds
;; variables. Artefact of implementing dynamic variables by adapting existing code for static.
@A = external addrspace(3) global [8 x ptr]
@B = external addrspace(3) global [0 x i32]
define amdgpu_kernel void @kernel_0() {
; CHECK-LABEL: define amdgpu_kernel void @kernel_0() #0 !llvm.amdgcn.lds.kernel.id !1 {
; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel.kernel_0.lds) ]
; CHECK-NEXT: call void @call_store_A()
; CHECK-NEXT: ret void
;
call void @call_store_A()
ret void
}
define amdgpu_kernel void @kernel_1() {
; CHECK-LABEL: define amdgpu_kernel void @kernel_1() !llvm.amdgcn.lds.kernel.id !2 {
; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel_1.dynlds) ]
; CHECK-NEXT: [[PTR:%.*]] = call ptr @get_B_ptr()
; CHECK-NEXT: ret void
;
%ptr = call ptr @get_B_ptr()
ret void
}
define amdgpu_kernel void @kernel_2() {
; CHECK-LABEL: define amdgpu_kernel void @kernel_2() #0 !llvm.amdgcn.lds.kernel.id !3 {
; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel.kernel_2.lds) ]
; CHECK-NEXT: call void @store_A()
; CHECK-NEXT: ret void
;
call void @store_A()
ret void
}
define amdgpu_kernel void @kernel_3() {
; CHECK-LABEL: define amdgpu_kernel void @kernel_3() !llvm.amdgcn.lds.kernel.id !4 {
; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel_3.dynlds) ]
; CHECK-NEXT: [[PTR:%.*]] = call ptr @get_B_ptr()
; CHECK-NEXT: ret void
;
%ptr = call ptr @get_B_ptr()
ret void
}
define private void @call_store_A() {
; CHECK-LABEL: define private void @call_store_A() {
; CHECK-NEXT: call void @store_A()
; CHECK-NEXT: ret void
;
call void @store_A()
ret void
}
define private void @store_A() {
; CHECK-LABEL: define private void @store_A() {
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.amdgcn.lds.kernel.id()
; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [4 x [1 x i32]], ptr addrspace(4) @llvm.amdgcn.lds.offset.table, i32 0, i32 [[TMP1]], i32 0
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr addrspace(4) [[A]], align 4
; CHECK-NEXT: [[A1:%.*]] = inttoptr i32 [[TMP2]] to ptr addrspace(3)
; CHECK-NEXT: [[TMP3:%.*]] = addrspacecast ptr addrspace(3) [[A1]] to ptr
; CHECK-NEXT: store ptr [[TMP3]], ptr null, align 8
; CHECK-NEXT: ret void
;
store ptr addrspacecast (ptr addrspace(3) @A to ptr), ptr null
ret void
}
define private ptr @get_B_ptr() {
; CHECK-LABEL: define private ptr @get_B_ptr() {
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.amdgcn.lds.kernel.id()
; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [4 x i32], ptr addrspace(4) @llvm.amdgcn.dynlds.offset.table, i32 0, i32 [[TMP1]]
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr addrspace(4) [[B]], align 4
; CHECK-NEXT: [[B1:%.*]] = inttoptr i32 [[TMP2]] to ptr addrspace(3)
; CHECK-NEXT: [[TMP3:%.*]] = addrspacecast ptr addrspace(3) [[B1]] to ptr
; CHECK-NEXT: ret ptr [[TMP3]]
;
ret ptr addrspacecast (ptr addrspace(3) @B to ptr)
}
; CHECK: attributes #0 = { "amdgpu-lds-size"="64" }
|
