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| author | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
| commit | 9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a (patch) | |
| tree | b466a4817f79516eb1df8eae92bccf62ecc84003 /contrib/llvm/lib/IR/FunctionInfo.cpp | |
| parent | f09a28d1de99fda4f5517fb12670fc36552f4927 (diff) | |
| parent | e194cd6d03d91631334d9d5e55b506036f423cc8 (diff) | |
| download | FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.zip FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.tar.gz | |
Update llvm to trunk r256633.
Diffstat (limited to 'contrib/llvm/lib/IR/FunctionInfo.cpp')
| -rw-r--r-- | contrib/llvm/lib/IR/FunctionInfo.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/contrib/llvm/lib/IR/FunctionInfo.cpp b/contrib/llvm/lib/IR/FunctionInfo.cpp new file mode 100644 index 0000000..17a67bc --- /dev/null +++ b/contrib/llvm/lib/IR/FunctionInfo.cpp @@ -0,0 +1,67 @@ +//===-- FunctionInfo.cpp - Function Info Index ----------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the function info index and summary classes for the +// IR library. +// +//===----------------------------------------------------------------------===// + +#include "llvm/IR/FunctionInfo.h" +#include "llvm/ADT/StringMap.h" +using namespace llvm; + +// Create the combined function index/summary from multiple +// per-module instances. +void FunctionInfoIndex::mergeFrom(std::unique_ptr<FunctionInfoIndex> Other, + uint64_t NextModuleId) { + + StringRef ModPath; + for (auto &OtherFuncInfoLists : *Other) { + std::string FuncName = OtherFuncInfoLists.getKey(); + FunctionInfoList &List = OtherFuncInfoLists.second; + + // Assert that the func info list only has one entry, since we shouldn't + // have duplicate names within a single per-module index. + assert(List.size() == 1); + std::unique_ptr<FunctionInfo> Info = std::move(List.front()); + + // Skip if there was no function summary section. + if (!Info->functionSummary()) + continue; + + // Add the module path string ref for this module if we haven't already + // saved a reference to it. + if (ModPath.empty()) + ModPath = + addModulePath(Info->functionSummary()->modulePath(), NextModuleId); + else + assert(ModPath == Info->functionSummary()->modulePath() && + "Each module in the combined map should have a unique ID"); + + // Note the module path string ref was copied above and is still owned by + // the original per-module index. Reset it to the new module path + // string reference owned by the combined index. + Info->functionSummary()->setModulePath(ModPath); + + // If it is a local function, rename it. + if (Info->functionSummary()->isLocalFunction()) { + // Any local functions are virtually renamed when being added to the + // combined index map, to disambiguate from other functions with + // the same name. The symbol table created for the combined index + // file should contain the renamed symbols. + FuncName = + FunctionInfoIndex::getGlobalNameForLocal(FuncName, NextModuleId); + } + + // Add new function info to existing list. There may be duplicates when + // combining FunctionMap entries, due to COMDAT functions. Any local + // functions were virtually renamed above. + addFunctionInfo(FuncName, std::move(Info)); + } +} |
