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 <[email protected]> 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 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 59 */ 60 LLVMValueRef 61 lp_build_struct_get_ptr2(struct gallivm_state *gallivm, 62 LLVMTypeRef ptr_type, 63 LLVMValueRef ptr, 64 unsigned member, 65 const char *name); 66 67 /** 68 * Get the value of a structure member. 69 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 70 */ 71 LLVMValueRef 72 lp_build_struct_get2(struct gallivm_state *gallivm, 73 LLVMTypeRef ptr_type, 74 LLVMValueRef ptr, 75 unsigned member, 76 const char *name); 77 78 LLVMValueRef 79 lp_build_array_get_ptr2(struct gallivm_state *gallivm, 80 LLVMTypeRef array_type, 81 LLVMValueRef ptr, 82 LLVMValueRef index); 83 84 LLVMValueRef 85 lp_build_array_get2(struct gallivm_state *gallivm, 86 LLVMTypeRef array_type, 87 LLVMValueRef ptr, 88 LLVMValueRef index); 89 90 /** 91 * Get the value of an array element. 92 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 93 */ 94 LLVMValueRef 95 lp_build_pointer_get2(LLVMBuilderRef builder, 96 LLVMTypeRef ptr_type, 97 LLVMValueRef ptr, 98 LLVMValueRef index); 99 100 /** 101 * Get the value of an array element, with explicit alignment, and explicit type, 102 * This takes the explicit LLVM type of ptr, as required by LLVM-15 opaque-pointers. 103 * 104 * If the element size is different from the alignment this will 105 * cause llvm to emit an unaligned load 106 */ 107 LLVMValueRef 108 lp_build_pointer_get_unaligned2(LLVMBuilderRef builder, 109 LLVMTypeRef ptr_type, 110 LLVMValueRef ptr, 111 LLVMValueRef index, 112 unsigned alignment); 113 114 /** 115 * Set the value of an array element. 116 */ 117 void 118 lp_build_pointer_set(LLVMBuilderRef builder, 119 LLVMValueRef ptr, 120 LLVMValueRef index, 121 LLVMValueRef value); 122 123 /** 124 * Set the value of an array element, with explicit alignment. 125 * 126 * If the element size is different from the alignment this will 127 * cause llvm to emit an unaligned store 128 */ 129 void 130 lp_build_pointer_set_unaligned(LLVMBuilderRef builder, 131 LLVMValueRef ptr, 132 LLVMValueRef index, 133 LLVMValueRef value, 134 unsigned alignment); 135 136 #endif /* !LP_BLD_STRUCT_H */ 137