1 /************************************************************************** 2 * 3 * Copyright 2013 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 arithmetic functions with support for overflow detection 31 * and reporting. 32 * 33 * @author Zack Rusin <zackr@vmware.com> 34 */ 35 36 37 #ifndef LP_BLD_ARIT_OVERFLOW_H 38 #define LP_BLD_ARIT_OVERFLOW_H 39 40 41 #include "gallivm/lp_bld.h" 42 43 struct gallivm_state; 44 45 LLVMValueRef 46 lp_build_uadd_overflow(struct gallivm_state *gallivm, 47 LLVMValueRef a, 48 LLVMValueRef b, 49 LLVMValueRef *ofbit); 50 51 LLVMValueRef 52 lp_build_usub_overflow(struct gallivm_state *gallivm, 53 LLVMValueRef a, 54 LLVMValueRef b, 55 LLVMValueRef *ofbit); 56 57 LLVMValueRef 58 lp_build_umul_overflow(struct gallivm_state *gallivm, 59 LLVMValueRef a, 60 LLVMValueRef b, 61 LLVMValueRef *ofbit); 62 63 #endif /* !LP_BLD_ARIT_OVERFLOW_H */ 64