blob: 56088718ada82197d724b370d394bc799a3461a8 [file] [log] [blame]
Tom Stellard80580692015-01-20 17:49:43 +00001; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=SI < %s | FileCheck %s
Marek Olsakfa6607d2015-02-11 14:26:46 +00002; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s | FileCheck %s
Tom Stellard80580692015-01-20 17:49:43 +00003
4; When a frame index offset is more than 12-bits, make sure we don't store
5; it in mubuf's offset field.
6
Tom Stellard8255af42015-01-20 17:49:45 +00007; Also, make sure we use the same register for storing the scratch buffer addresss
8; for both stores. This register is allocated by the register scavenger, so we
9; should be able to reuse the same regiser for each scratch buffer access.
10
Tom Stellard80580692015-01-20 17:49:43 +000011; CHECK-LABEL: {{^}}legal_offset_fi:
Tom Stellard8255af42015-01-20 17:49:45 +000012; CHECK: v_mov_b32_e32 [[OFFSET:v[0-9]+]], 0{{$}}
13; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen
14; CHECK: v_mov_b32_e32 [[OFFSET]], 0x8000
Tom Stellard80580692015-01-20 17:49:43 +000015; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
16
17define void @legal_offset_fi(i32 addrspace(1)* %out, i32 %cond, i32 %if_offset, i32 %else_offset) {
18entry:
19 %scratch0 = alloca [8192 x i32]
20 %scratch1 = alloca [8192 x i32]
21
David Blaikie79e6c742015-02-27 19:29:02 +000022 %scratchptr0 = getelementptr [8192 x i32], [8192 x i32]* %scratch0, i32 0, i32 0
Tom Stellard80580692015-01-20 17:49:43 +000023 store i32 1, i32* %scratchptr0
24
David Blaikie79e6c742015-02-27 19:29:02 +000025 %scratchptr1 = getelementptr [8192 x i32], [8192 x i32]* %scratch1, i32 0, i32 0
Tom Stellard80580692015-01-20 17:49:43 +000026 store i32 2, i32* %scratchptr1
27
28 %cmp = icmp eq i32 %cond, 0
29 br i1 %cmp, label %if, label %else
30
31if:
David Blaikie79e6c742015-02-27 19:29:02 +000032 %if_ptr = getelementptr [8192 x i32], [8192 x i32]* %scratch0, i32 0, i32 %if_offset
David Blaikiea79ac142015-02-27 21:17:42 +000033 %if_value = load i32, i32* %if_ptr
Tom Stellard80580692015-01-20 17:49:43 +000034 br label %done
35
36else:
David Blaikie79e6c742015-02-27 19:29:02 +000037 %else_ptr = getelementptr [8192 x i32], [8192 x i32]* %scratch1, i32 0, i32 %else_offset
David Blaikiea79ac142015-02-27 21:17:42 +000038 %else_value = load i32, i32* %else_ptr
Tom Stellard80580692015-01-20 17:49:43 +000039 br label %done
40
41done:
42 %value = phi i32 [%if_value, %if], [%else_value, %else]
43 store i32 %value, i32 addrspace(1)* %out
44 ret void
45
46 ret void
47
48}
49
50; CHECK-LABEL: {{^}}legal_offset_fi_offset
51; CHECK: buffer_store_dword v{{[0-9]+}}, v{{[0-9]+}}, s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen
52; CHECK: v_add_i32_e32 [[OFFSET:v[0-9]+]], 0x8000
53; CHECK: buffer_store_dword v{{[0-9]+}}, [[OFFSET]], s[{{[0-9]+}}:{{[0-9]+}}], s{{[0-9]+}} offen{{$}}
54
55define void @legal_offset_fi_offset(i32 addrspace(1)* %out, i32 %cond, i32 addrspace(1)* %offsets, i32 %if_offset, i32 %else_offset) {
56entry:
57 %scratch0 = alloca [8192 x i32]
58 %scratch1 = alloca [8192 x i32]
59
David Blaikiea79ac142015-02-27 21:17:42 +000060 %offset0 = load i32, i32 addrspace(1)* %offsets
David Blaikie79e6c742015-02-27 19:29:02 +000061 %scratchptr0 = getelementptr [8192 x i32], [8192 x i32]* %scratch0, i32 0, i32 %offset0
Tom Stellard80580692015-01-20 17:49:43 +000062 store i32 %offset0, i32* %scratchptr0
63
David Blaikie79e6c742015-02-27 19:29:02 +000064 %offsetptr1 = getelementptr i32, i32 addrspace(1)* %offsets, i32 1
David Blaikiea79ac142015-02-27 21:17:42 +000065 %offset1 = load i32, i32 addrspace(1)* %offsetptr1
David Blaikie79e6c742015-02-27 19:29:02 +000066 %scratchptr1 = getelementptr [8192 x i32], [8192 x i32]* %scratch1, i32 0, i32 %offset1
Tom Stellard80580692015-01-20 17:49:43 +000067 store i32 %offset1, i32* %scratchptr1
68
69 %cmp = icmp eq i32 %cond, 0
70 br i1 %cmp, label %if, label %else
71
72if:
David Blaikie79e6c742015-02-27 19:29:02 +000073 %if_ptr = getelementptr [8192 x i32], [8192 x i32]* %scratch0, i32 0, i32 %if_offset
David Blaikiea79ac142015-02-27 21:17:42 +000074 %if_value = load i32, i32* %if_ptr
Tom Stellard80580692015-01-20 17:49:43 +000075 br label %done
76
77else:
David Blaikie79e6c742015-02-27 19:29:02 +000078 %else_ptr = getelementptr [8192 x i32], [8192 x i32]* %scratch1, i32 0, i32 %else_offset
David Blaikiea79ac142015-02-27 21:17:42 +000079 %else_value = load i32, i32* %else_ptr
Tom Stellard80580692015-01-20 17:49:43 +000080 br label %done
81
82done:
83 %value = phi i32 [%if_value, %if], [%else_value, %else]
84 store i32 %value, i32 addrspace(1)* %out
85 ret void
86}
87