source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AMDGPU/addrspacecast.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 2.6 KB
Line 
1; RUN: not llc -O0 -march=amdgcn -mcpu=bonaire -mattr=-promote-alloca < %s 2>&1 | FileCheck -check-prefix=ERROR %s
2
3; ERROR: unsupported addrspacecast not implemented
4
5; XUN: llc -O0 -march=amdgcn -mcpu=bonaire -mattr=-promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NO-PROMOTE %s
6; XUN: llc -O0 -march=amdgcn -mcpu=bonaire -mattr=+promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-PROMOTE %s
7; XUN: llc -O0 -march=amdgcn -mcpu=tonga -mattr=-promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NO-PROMOTE %s
8; XUN: llc -O0 -march=amdgcn -mcpu=tonga -mattr=+promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-PROMOTE %s
9
10; Disable optimizations in case there are optimizations added that
11; specialize away generic pointer accesses.
12
13; CHECK-LABEL: {{^}}branch_use_flat_i32:
14; CHECK: flat_store_dword {{v[0-9]+}}, {{v\[[0-9]+:[0-9]+\]}}
15; CHECK: s_endpgm
16define void @branch_use_flat_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* %gptr, i32 addrspace(3)* %lptr, i32 %x, i32 %c) #0 {
17entry:
18  %cmp = icmp ne i32 %c, 0
19  br i1 %cmp, label %local, label %global
20
21local:
22  %flat_local = addrspacecast i32 addrspace(3)* %lptr to i32 addrspace(4)*
23  br label %end
24
25global:
26  %flat_global = addrspacecast i32 addrspace(1)* %gptr to i32 addrspace(4)*
27  br label %end
28
29end:
30  %fptr = phi i32 addrspace(4)* [ %flat_local, %local ], [ %flat_global, %global ]
31  store i32 %x, i32 addrspace(4)* %fptr, align 4
32;  %val = load i32, i32 addrspace(4)* %fptr, align 4
33;  store i32 %val, i32 addrspace(1)* %out, align 4
34  ret void
35}
36
37; TODO: This should not be zero when registers are used for small
38; scratch allocations again.
39
40; Check for prologue initializing special SGPRs pointing to scratch.
41; CHECK-LABEL: {{^}}store_flat_scratch:
42; CHECK: s_movk_i32 flat_scratch_lo, 0
43; CHECK-NO-PROMOTE: s_movk_i32 flat_scratch_hi, 0x28{{$}}
44; CHECK-PROMOTE: s_movk_i32 flat_scratch_hi, 0x0{{$}}
45; CHECK: flat_store_dword
46; CHECK: s_barrier
47; CHECK: flat_load_dword
48define void @store_flat_scratch(i32 addrspace(1)* noalias %out, i32) #0 {
49  %alloca = alloca i32, i32 9, align 4
50  %x = call i32 @llvm.r600.read.tidig.x() #3
51  %pptr = getelementptr i32, i32* %alloca, i32 %x
52  %fptr = addrspacecast i32* %pptr to i32 addrspace(4)*
53  store i32 %x, i32 addrspace(4)* %fptr
54  ; Dummy call
55  call void @llvm.AMDGPU.barrier.local() #1
56  %reload = load i32, i32 addrspace(4)* %fptr, align 4
57  store i32 %reload, i32 addrspace(1)* %out, align 4
58  ret void
59}
60
61declare void @llvm.AMDGPU.barrier.local() #1
62declare i32 @llvm.r600.read.tidig.x() #3
63
64attributes #0 = { nounwind }
65attributes #1 = { nounwind convergent }
66attributes #3 = { nounwind readnone }
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