1 /************************************************************************** 2 * 3 * Copyright 2009 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /** 29 * @file 30 * Helper functions for type conversions. 31 * 32 * @author Jose Fonseca <jfonseca@vmware.com> 33 */ 34 35 36 #ifndef LP_BLD_STRUCT_H 37 #define LP_BLD_STRUCT_H 38 39 40 #include "gallivm/lp_bld.h" 41 #include "gallivm/lp_bld_init.h" 42 43 #include "util/u_debug.h" 44 #include "util/u_memory.h" 45 46 47 #define LP_CHECK_STRUCT_SIZE(_ctype, _ltarget, _ltype) \ 48 assert(LLVMABISizeOfType(_ltarget, _ltype) == \ 49 sizeof(_ctype)) 50 51 #define LP_CHECK_MEMBER_OFFSET(_ctype, _cmember, _ltarget, _ltype, _lindex) \ 52 assert(LLVMOffsetOfElement(_ltarget, _ltype, _lindex) == \ 53 offsetof(_ctype, _cmember)) 54 55 56 /** 57 * Get value pointer to a structure member. 58 */ 59 LLVMValueRef 60 lp_build_struct_get_ptr(struct gallivm_state *gallivm, 61 LLVMValueRef ptr, 62 unsigned member, 63 const char *name); 64 65 /** 66 * Get the value of a structure member. 67 */ 68 LLVMValueRef 69 lp_build_struct_get(struct gallivm_state *gallivm, 70 LLVMValueRef ptr, 71 unsigned member, 72 const char *name); 73 74 /** 75 * Get value pointer to a structure member. 76 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 77 */ 78 LLVMValueRef 79 lp_build_struct_get_ptr2(struct gallivm_state *gallivm, 80 LLVMTypeRef ptr_type, 81 LLVMValueRef ptr, 82 unsigned member, 83 const char *name); 84 85 /** 86 * Get the value of a structure member. 87 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 88 */ 89 LLVMValueRef 90 lp_build_struct_get2(struct gallivm_state *gallivm, 91 LLVMTypeRef ptr_type, 92 LLVMValueRef ptr, 93 unsigned member, 94 const char *name); 95 96 /** 97 * Get value pointer to an array element. 98 */ 99 LLVMValueRef 100 lp_build_array_get_ptr(struct gallivm_state *gallivm, 101 LLVMValueRef ptr, 102 LLVMValueRef index); 103 104 /** 105 * Get the value of an array element. 106 */ 107 LLVMValueRef 108 lp_build_array_get(struct gallivm_state *gallivm, 109 LLVMValueRef ptr, 110 LLVMValueRef index); 111 112 /** 113 * Set the value of an array element. 114 */ 115 void 116 lp_build_array_set(struct gallivm_state *gallivm, 117 LLVMValueRef ptr, 118 LLVMValueRef index, 119 LLVMValueRef value); 120 121 /** 122 * Get the value of an array element. 123 */ 124 LLVMValueRef 125 lp_build_pointer_get(LLVMBuilderRef builder, 126 LLVMValueRef ptr, 127 LLVMValueRef index); 128 129 /** 130 * Get the value of an array element, with explicit alignment. 131 * 132 * If the element size is different from the alignment this will 133 * cause llvm to emit an unaligned load 134 */ 135 LLVMValueRef 136 lp_build_pointer_get_unaligned(LLVMBuilderRef builder, 137 LLVMValueRef ptr, 138 LLVMValueRef index, 139 unsigned alignment); 140 141 /** 142 * Set the value of an array element. 143 */ 144 void 145 lp_build_pointer_set(LLVMBuilderRef builder, 146 LLVMValueRef ptr, 147 LLVMValueRef index, 148 LLVMValueRef value); 149 150 /** 151 * Set the value of an array element, with explicit alignment. 152 * 153 * If the element size is different from the alignment this will 154 * cause llvm to emit an unaligned store 155 */ 156 void 157 lp_build_pointer_set_unaligned(LLVMBuilderRef builder, 158 LLVMValueRef ptr, 159 LLVMValueRef index, 160 LLVMValueRef value, 161 unsigned alignment); 162 163 #endif /* !LP_BLD_STRUCT_H */ 164