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[OpenMP] Add Support for Mapping Names in Libomptarget RTL
Summary: This patch adds basic support for priting the source location and names for the mapped variables. This patch does not support names for custom mappers. This is based on D89802. Reviewers: jdoerfert Differential Revision: https://reviews.llvm.org/D90172
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| //===------- SourceInfo.h - Target independent OpenMP target RTL -- C++ -*-===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // Methods used to describe source information in target regions | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef _SOURCE_INFO_H_ | ||
| #define _SOURCE_INFO_H_ | ||
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| #include <string> | ||
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| #ifdef _WIN32 | ||
| static const bool OS_WINDOWS = true; | ||
| #else | ||
| static const bool OS_WINDOWS = false; | ||
| #endif | ||
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| /// Type alias for source location information for variable mappings with | ||
| /// data layout ";name;filename;row;col;;\0" from clang. | ||
| using map_var_info_t = void *; | ||
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| /// Struct to hold source individual location information. | ||
| class SourceInfo { | ||
| /// Underlying string copy of the original source information. | ||
| const std::string str; | ||
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| std::string initStr(const map_var_info_t name) { | ||
| if (!name) | ||
| return ";unknown;unknown;0;0;;"; | ||
| else | ||
| return std::string(reinterpret_cast<const char *>(name)); | ||
| } | ||
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| /// Get n-th substring in an expression separated by ;. | ||
| std::string getSubstring(const int n) { | ||
| std::size_t begin = str.find(';'); | ||
| std::size_t end = str.find(';', begin + 1); | ||
| for (int i = 0; i < n; i++) { | ||
| begin = end; | ||
| end = str.find(';', begin + 1); | ||
| } | ||
| return str.substr(begin + 1, end - begin - 1); | ||
| }; | ||
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| /// Get the filename from a full path. | ||
| std::string removePath(const std::string &path) { | ||
| std::size_t pos = (OS_WINDOWS) ? path.rfind('\\') : path.rfind('/'); | ||
| return path.substr(pos + 1); | ||
| }; | ||
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| public: | ||
| SourceInfo(const map_var_info_t name) | ||
| : str(initStr(name)), name(getSubstring(0)), | ||
| filename(removePath(getSubstring(1))), line(std::stoi(getSubstring(2))), | ||
| column(std::stoi(getSubstring(3))) {} | ||
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| const std::string name; | ||
| const std::string filename; | ||
| const int32_t line; | ||
| const int32_t column; | ||
| }; | ||
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| /// Standalone function for getting the variable name of a mapping. | ||
| static inline std::string getNameFromMapping(const map_var_info_t name) { | ||
| if (!name) | ||
| return "unknown"; | ||
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| const std::string name_str(reinterpret_cast<const char *>(name)); | ||
| std::size_t begin = name_str.find(';'); | ||
| std::size_t end = name_str.find(';', begin + 1); | ||
| return name_str.substr(begin + 1, end - begin - 1); | ||
| } | ||
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| #endif |
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