64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/**************************************************************************
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*
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* Copyright 2013 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* Helper arithmetic functions with support for overflow detection
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* and reporting.
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*
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* @author Zack Rusin <zackr@vmware.com>
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*/
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#ifndef LP_BLD_ARIT_OVERFLOW_H
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#define LP_BLD_ARIT_OVERFLOW_H
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#include "gallivm/lp_bld.h"
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struct gallivm_state;
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LLVMValueRef
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lp_build_uadd_overflow(struct gallivm_state *gallivm,
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LLVMValueRef a,
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LLVMValueRef b,
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LLVMValueRef *ofbit);
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LLVMValueRef
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lp_build_usub_overflow(struct gallivm_state *gallivm,
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LLVMValueRef a,
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LLVMValueRef b,
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LLVMValueRef *ofbit);
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LLVMValueRef
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lp_build_umul_overflow(struct gallivm_state *gallivm,
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LLVMValueRef a,
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LLVMValueRef b,
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LLVMValueRef *ofbit);
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#endif /* !LP_BLD_ARIT_OVERFLOW_H */
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