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5564 | serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2013 VMware, Inc. |
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4 | * All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the |
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8 | * "Software"), to deal in the Software without restriction, including |
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9 | * without limitation the rights to use, copy, modify, merge, publish, |
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10 | * distribute, sub license, and/or sell copies of the Software, and to |
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11 | * permit persons to whom the Software is furnished to do so, subject to |
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12 | * the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice (including the |
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15 | * next paragraph) shall be included in all copies or substantial portions |
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16 | * of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
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22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | **************************************************************************/ |
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27 | |||
28 | /** |
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29 | * @file |
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30 | * Helper arithmetic functions with support for overflow detection |
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31 | * and reporting. |
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32 | * |
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33 | * @author Zack Rusin |
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34 | */ |
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35 | |||
36 | |||
37 | #ifndef LP_BLD_ARIT_OVERFLOW_H |
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38 | #define LP_BLD_ARIT_OVERFLOW_H |
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39 | |||
40 | |||
41 | #include "gallivm/lp_bld.h" |
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42 | |||
43 | struct gallivm_state; |
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44 | |||
45 | LLVMValueRef |
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46 | lp_build_uadd_overflow(struct gallivm_state *gallivm, |
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47 | LLVMValueRef a, |
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48 | LLVMValueRef b, |
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49 | LLVMValueRef *ofbit); |
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50 | |||
51 | LLVMValueRef |
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52 | lp_build_umul_overflow(struct gallivm_state *gallivm, |
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53 | LLVMValueRef a, |
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54 | LLVMValueRef b, |
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55 | LLVMValueRef *ofbit); |
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56 | |||
57 | #endif /* !LP_BLD_ARIT_OVERFLOW_H */ |