summaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/gallivm/lp_bld_struct.c
blob: cc248d15e97f362d50adbf1166bf226c062efd99 (plain)
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
/**************************************************************************
 *
 * Copyright 2009 VMware, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/


/**
 * @file
 * Helper functions for manipulation structures.
 *
 * @author Jose Fonseca <jfonseca@vmware.com>
 */


#include "util/u_debug.h"
#include "util/u_memory.h"

#include "lp_bld_const.h"
#include "lp_bld_debug.h"
#include "lp_bld_struct.h"


LLVMValueRef
lp_build_struct_get_ptr(struct gallivm_state *gallivm,
                        LLVMValueRef ptr,
                        unsigned member,
                        const char *name)
{
   LLVMValueRef indices[2];
   LLVMValueRef member_ptr;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMStructTypeKind);
   indices[0] = lp_build_const_int32(gallivm, 0);
   indices[1] = lp_build_const_int32(gallivm, member);
   member_ptr = LLVMBuildGEP(gallivm->builder, ptr, indices, Elements(indices), "");
   lp_build_name(member_ptr, "%s.%s_ptr", LLVMGetValueName(ptr), name);
   return member_ptr;
}


LLVMValueRef
lp_build_struct_get(struct gallivm_state *gallivm,
                    LLVMValueRef ptr,
                    unsigned member,
                    const char *name)
{
   LLVMValueRef member_ptr;
   LLVMValueRef res;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMStructTypeKind);
   member_ptr = lp_build_struct_get_ptr(gallivm, ptr, member, name);
   res = LLVMBuildLoad(gallivm->builder, member_ptr, "");
   lp_build_name(res, "%s.%s", LLVMGetValueName(ptr), name);
   return res;
}


LLVMValueRef
lp_build_array_get_ptr(struct gallivm_state *gallivm,
                       LLVMValueRef ptr,
                       LLVMValueRef index)
{
   LLVMValueRef indices[2];
   LLVMValueRef element_ptr;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
   indices[0] = lp_build_const_int32(gallivm, 0);
   indices[1] = index;
   element_ptr = LLVMBuildGEP(gallivm->builder, ptr, indices, Elements(indices), "");
#ifdef DEBUG
   lp_build_name(element_ptr, "&%s[%s]",
                 LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
   return element_ptr;
}


LLVMValueRef
lp_build_array_get(struct gallivm_state *gallivm,
                   LLVMValueRef ptr,
                   LLVMValueRef index)
{
   LLVMValueRef element_ptr;
   LLVMValueRef res;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
   element_ptr = lp_build_array_get_ptr(gallivm, ptr, index);
   res = LLVMBuildLoad(gallivm->builder, element_ptr, "");
#ifdef DEBUG
   lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
   return res;
}


void
lp_build_array_set(struct gallivm_state *gallivm,
                   LLVMValueRef ptr,
                   LLVMValueRef index,
                   LLVMValueRef value)
{
   LLVMValueRef element_ptr;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   assert(LLVMGetTypeKind(LLVMGetElementType(LLVMTypeOf(ptr))) == LLVMArrayTypeKind);
   element_ptr = lp_build_array_get_ptr(gallivm, ptr, index);
   LLVMBuildStore(gallivm->builder, value, element_ptr);
}


LLVMValueRef
lp_build_pointer_get(LLVMBuilderRef builder,
                     LLVMValueRef ptr,
                     LLVMValueRef index)
{
   LLVMValueRef element_ptr;
   LLVMValueRef res;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
   res = LLVMBuildLoad(builder, element_ptr, "");
#ifdef DEBUG
   lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
   return res;
}


LLVMValueRef
lp_build_pointer_get_unaligned(LLVMBuilderRef builder,
                               LLVMValueRef ptr,
                               LLVMValueRef index,
                               unsigned alignment)
{
   LLVMValueRef element_ptr;
   LLVMValueRef res;
   assert(LLVMGetTypeKind(LLVMTypeOf(ptr)) == LLVMPointerTypeKind);
   element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
   res = LLVMBuildLoad(builder, element_ptr, "");
   lp_set_load_alignment(res, alignment);
#ifdef DEBUG
   lp_build_name(res, "%s[%s]", LLVMGetValueName(ptr), LLVMGetValueName(index));
#endif
   return res;
}


void
lp_build_pointer_set(LLVMBuilderRef builder,
                     LLVMValueRef ptr,
                     LLVMValueRef index,
                     LLVMValueRef value)
{
   LLVMValueRef element_ptr;
   element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
   LLVMBuildStore(builder, value, element_ptr);
}


void
lp_build_pointer_set_unaligned(LLVMBuilderRef builder,
                               LLVMValueRef ptr,
                               LLVMValueRef index,
                               LLVMValueRef value,
                               unsigned alignment)
{
   LLVMValueRef element_ptr;
   LLVMValueRef instr;
   element_ptr = LLVMBuildGEP(builder, ptr, &index, 1, "");
   instr = LLVMBuildStore(builder, value, element_ptr);
   lp_set_store_alignment(instr, alignment);
}