blob: 740328a495da7718b37a8c200b4da7d00082d5bb [file] [log] [blame]
Tom Stellard80580692015-01-20 17:49:43 +00001; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=SI < %s | FileCheck %s
2
3; When a frame index offset is more than 12-bits, make sure we don't store
4; it in mubuf's offset field.
5
Tom Stellard8255af42015-01-20 17:49:45 +00006; Also, make sure we use the same register for storing the scratch buffer addresss
7; for both stores. This register is allocated by the register scavenger, so we
8; should be able to reuse the same regiser for each scratch buffer access.
9
Tom Stellard80580692015-01-20 17:49:43 +000010; CHECK-LABEL: {{^}}legal_offset_fi:
Tom Stellard8255af42015-01-20 17:49:45 +000011; CHECK: v_mov_b32_e32 [[OFFSET:v[0-9]+]], 0{{$}}
12; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen
13; CHECK: v_mov_b32_e32 [[OFFSET]], 0x8000
Tom Stellard80580692015-01-20 17:49:43 +000014; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
15
16define void @legal_offset_fi(i32 addrspace(1)* %out, i32 %cond, i32 %if_offset, i32 %else_offset) {
17entry:
18 %scratch0 = alloca [8192 x i32]
19 %scratch1 = alloca [8192 x i32]
20
21 %scratchptr0 = getelementptr [8192 x i32]* %scratch0, i32 0, i32 0
22 store i32 1, i32* %scratchptr0
23
24 %scratchptr1 = getelementptr [8192 x i32]* %scratch1, i32 0, i32 0
25 store i32 2, i32* %scratchptr1
26
27 %cmp = icmp eq i32 %cond, 0
28 br i1 %cmp, label %if, label %else
29
30if:
31 %if_ptr = getelementptr [8192 x i32]* %scratch0, i32 0, i32 %if_offset
32 %if_value = load i32* %if_ptr
33 br label %done
34
35else:
36 %else_ptr = getelementptr [8192 x i32]* %scratch1, i32 0, i32 %else_offset
37 %else_value = load i32* %else_ptr
38 br label %done
39
40done:
41 %value = phi i32 [%if_value, %if], [%else_value, %else]
42 store i32 %value, i32 addrspace(1)* %out
43 ret void
44
45 ret void
46
47}
48
49; CHECK-LABEL: {{^}}legal_offset_fi_offset
50; CHECK: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen
51; CHECK: v_add_i32_e32 [[OFFSET:v[0-9]+]], 0x8000
52; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
53
54define void @legal_offset_fi_offset(i32 addrspace(1)* %out, i32 %cond, i32 addrspace(1)* %offsets, i32 %if_offset, i32 %else_offset) {
55entry:
56 %scratch0 = alloca [8192 x i32]
57 %scratch1 = alloca [8192 x i32]
58
59 %offset0 = load i32 addrspace(1)* %offsets
60 %scratchptr0 = getelementptr [8192 x i32]* %scratch0, i32 0, i32 %offset0
61 store i32 %offset0, i32* %scratchptr0
62
63 %offsetptr1 = getelementptr i32 addrspace(1)* %offsets, i32 1
64 %offset1 = load i32 addrspace(1)* %offsetptr1
65 %scratchptr1 = getelementptr [8192 x i32]* %scratch1, i32 0, i32 %offset1
66 store i32 %offset1, i32* %scratchptr1
67
68 %cmp = icmp eq i32 %cond, 0
69 br i1 %cmp, label %if, label %else
70
71if:
72 %if_ptr = getelementptr [8192 x i32]* %scratch0, i32 0, i32 %if_offset
73 %if_value = load i32* %if_ptr
74 br label %done
75
76else:
77 %else_ptr = getelementptr [8192 x i32]* %scratch1, i32 0, i32 %else_offset
78 %else_value = load i32* %else_ptr
79 br label %done
80
81done:
82 %value = phi i32 [%if_value, %if], [%else_value, %else]
83 store i32 %value, i32 addrspace(1)* %out
84 ret void
85}
86