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 an array element. 76 */ 77 LLVMValueRef 78 lp_build_array_get_ptr(struct gallivm_state *gallivm, 79 LLVMValueRef ptr, 80 LLVMValueRef index); 81 82 /** 83 * Get the value of an array element. 84 */ 85 LLVMValueRef 86 lp_build_array_get(struct gallivm_state *gallivm, 87 LLVMValueRef ptr, 88 LLVMValueRef index); 89 90 /** 91 * Set the value of an array element. 92 */ 93 void 94 lp_build_array_set(struct gallivm_state *gallivm, 95 LLVMValueRef ptr, 96 LLVMValueRef index, 97 LLVMValueRef value); 98 99 /** 100 * Get the value of an array element. 101 */ 102 LLVMValueRef 103 lp_build_pointer_get(LLVMBuilderRef builder, 104 LLVMValueRef ptr, 105 LLVMValueRef index); 106 107 /** 108 * Get the value of an array element, with explicit alignment. 109 * 110 * If the element size is different from the alignment this will 111 * cause llvm to emit an unaligned load 112 */ 113 LLVMValueRef 114 lp_build_pointer_get_unaligned(LLVMBuilderRef builder, 115 LLVMValueRef ptr, 116 LLVMValueRef index, 117 unsigned alignment); 118 119 /** 120 * Set the value of an array element. 121 */ 122 void 123 lp_build_pointer_set(LLVMBuilderRef builder, 124 LLVMValueRef ptr, 125 LLVMValueRef index, 126 LLVMValueRef value); 127 128 /** 129 * Set the value of an array element, with explicit alignment. 130 * 131 * If the element size is different from the alignment this will 132 * cause llvm to emit an unaligned store 133 */ 134 void 135 lp_build_pointer_set_unaligned(LLVMBuilderRef builder, 136 LLVMValueRef ptr, 137 LLVMValueRef index, 138 LLVMValueRef value, 139 unsigned alignment); 140 141 #endif /* !LP_BLD_STRUCT_H */ 142