xref: /llvm-project/llvm/test/CodeGen/AMDGPU/uint_to_fp.ll (revision 9e9907f1cfa424366fba58d9520f9305b537cec9)
1; RUN: llc -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck -allow-deprecated-dag-overlap -check-prefix=SI -check-prefix=FUNC %s
2; RUN: llc -mtriple=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -allow-deprecated-dag-overlap -check-prefix=SI -check-prefix=FUNC %s
3; RUN: llc -mtriple=r600 -mcpu=redwood < %s | FileCheck -allow-deprecated-dag-overlap -check-prefix=R600 -check-prefix=FUNC %s
4
5; FUNC-LABEL: {{^}}s_uint_to_fp_i32_to_f32:
6; SI: v_cvt_f32_u32_e32
7
8; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW]}}, KC0[2].Z
9define amdgpu_kernel void @s_uint_to_fp_i32_to_f32(ptr addrspace(1) %out, i32 %in) #0 {
10  %result = uitofp i32 %in to float
11  store float %result, ptr addrspace(1) %out
12  ret void
13}
14
15; FUNC-LABEL: {{^}}v_uint_to_fp_i32_to_f32:
16; SI: v_cvt_f32_u32_e32 {{v[0-9]+}}, {{v[0-9]+$}}
17
18; R600: INT_TO_FLT
19define amdgpu_kernel void @v_uint_to_fp_i32_to_f32(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
20  %tid = call i32 @llvm.amdgcn.workitem.id.x()
21  %in.gep = getelementptr i32, ptr addrspace(1) %in, i32 %tid
22  %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
23  %val = load i32, ptr addrspace(1) %in.gep
24  %result = uitofp i32 %val to float
25  store float %result, ptr addrspace(1) %out.gep
26  ret void
27}
28
29; FUNC-LABEL: {{^}}s_uint_to_fp_v2i32_to_v2f32:
30; SI: v_cvt_f32_u32_e32
31; SI: v_cvt_f32_u32_e32
32
33; R600-DAG: UINT_TO_FLT * T{{[0-9]+\.[XYZW]}}, KC0[2].W
34; R600-DAG: UINT_TO_FLT * T{{[0-9]+\.[XYZW]}}, KC0[3].X
35define amdgpu_kernel void @s_uint_to_fp_v2i32_to_v2f32(ptr addrspace(1) %out, <2 x i32> %in) #0 {
36  %result = uitofp <2 x i32> %in to <2 x float>
37  store <2 x float> %result, ptr addrspace(1) %out
38  ret void
39}
40
41; FUNC-LABEL: {{^}}s_uint_to_fp_v4i32_to_v4f32:
42; SI: v_cvt_f32_u32_e32
43; SI: v_cvt_f32_u32_e32
44; SI: v_cvt_f32_u32_e32
45; SI: v_cvt_f32_u32_e32
46; SI: s_endpgm
47
48; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
49; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
50; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
51; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
52define amdgpu_kernel void @s_uint_to_fp_v4i32_to_v4f32(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
53  %value = load <4 x i32>, ptr addrspace(1) %in
54  %result = uitofp <4 x i32> %value to <4 x float>
55  store <4 x float> %result, ptr addrspace(1) %out
56  ret void
57}
58
59; FUNC-LABEL: {{^}}v_uint_to_fp_v4i32:
60; SI: v_cvt_f32_u32_e32
61; SI: v_cvt_f32_u32_e32
62; SI: v_cvt_f32_u32_e32
63; SI: v_cvt_f32_u32_e32
64
65; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
66; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
67; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
68; R600: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
69define amdgpu_kernel void @v_uint_to_fp_v4i32(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
70  %tid = call i32 @llvm.amdgcn.workitem.id.x()
71  %in.gep = getelementptr <4 x i32>, ptr addrspace(1) %in, i32 %tid
72  %out.gep = getelementptr <4 x float>, ptr addrspace(1) %out, i32 %tid
73  %value = load <4 x i32>, ptr addrspace(1) %in.gep
74  %result = uitofp <4 x i32> %value to <4 x float>
75  store <4 x float> %result, ptr addrspace(1) %out.gep
76  ret void
77}
78
79; FUNC-LABEL: {{^}}s_uint_to_fp_i1_to_f32:
80; SI: s_cmp_eq_u32
81; SI: s_cselect_b64  [[CMP:s\[[0-9]+:[0-9]\]]], -1, 0
82; SI: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1.0, [[CMP]]
83; SI: buffer_store_dword [[RESULT]],
84; SI: s_endpgm
85define amdgpu_kernel void @s_uint_to_fp_i1_to_f32(ptr addrspace(1) %out, i32 %in) #0 {
86  %cmp = icmp eq i32 %in, 0
87  %fp = uitofp i1 %cmp to float
88  store float %fp, ptr addrspace(1) %out
89  ret void
90}
91
92; FUNC-LABEL: {{^}}s_uint_to_fp_i1_to_f32_load:
93; SI: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1.0
94; SI: buffer_store_dword [[RESULT]],
95; SI: s_endpgm
96define amdgpu_kernel void @s_uint_to_fp_i1_to_f32_load(ptr addrspace(1) %out, i1 %in) #0 {
97  %fp = uitofp i1 %in to float
98  store float %fp, ptr addrspace(1) %out
99  ret void
100}
101
102; FUNC-LABEL: {{^}}v_uint_to_fp_i1_f32_load:
103; SI: {{buffer|flat}}_load_ubyte
104; SI: v_and_b32_e32 {{v[0-9]+}}, 1, {{v[0-9]+}}
105; SI: v_cmp_eq_u32
106; SI: v_cndmask_b32_e64 [[RESULT:v[0-9]+]], 0, 1.0
107; SI: {{buffer|flat}}_store_dword {{.*}}[[RESULT]]
108; SI: s_endpgm
109define amdgpu_kernel void @v_uint_to_fp_i1_f32_load(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
110  %tid = call i32 @llvm.amdgcn.workitem.id.x()
111  %in.gep = getelementptr i1, ptr addrspace(1) %in, i32 %tid
112  %out.gep = getelementptr float, ptr addrspace(1) %out, i32 %tid
113  %val = load i1, ptr addrspace(1) %in.gep
114  %fp = uitofp i1 %val to float
115  store float %fp, ptr addrspace(1) %out.gep
116  ret void
117}
118
119; FIXME: Repeated here to test r600
120; FUNC-LABEL: {{^}}s_uint_to_fp_i64_to_f32:
121; R600: FFBH_UINT
122; R600: CNDE_INT
123; R600: UINT_TO_FLT
124
125define amdgpu_kernel void @s_uint_to_fp_i64_to_f32(ptr addrspace(1) %out, i64 %in) #0 {
126entry:
127  %cvt = uitofp i64 %in to float
128  store float %cvt, ptr addrspace(1) %out
129  ret void
130}
131
132declare i32 @llvm.amdgcn.workitem.id.x() #1
133
134attributes #0 = { nounwind }
135attributes #1 = { nounwind readnone }
136