forked from OSchip/llvm-project
19c7bbe3b7
This commit adds a new target-independent calling convention for C++ TLS access functions. It aims to minimize overhead in the caller by perserving as many registers as possible. The target-specific implementation for X86-64 is defined as following: Arguments are passed as for the default C calling convention The same applies for the return value(s) The callee preserves all GPRs - except RAX and RDI The access function makes C-style TLS function calls in the entry and exit block, C-style TLS functions save a lot more registers than normal calls. The added calling convention ties into the existing implementation of the C-style TLS functions, so we can't simply use existing calling conventions such as preserve_mostcc. rdar://9001553 llvm-svn: 254737 |
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| .. | ||
| CMakeLists.txt | ||
| LLLexer.cpp | ||
| LLLexer.h | ||
| LLParser.cpp | ||
| LLParser.h | ||
| LLToken.h | ||
| LLVMBuild.txt | ||
| Makefile | ||
| Parser.cpp | ||
| module.modulemap | ||