llvm-project.git/llvm/lib/ExecutionEngine/JITLink/COFF.cpp, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [JITLink] Switch to SymbolStringPtr for Symbol names (#115796) 2024-12-05T23:22:09+00:00 Jared Wyles jared.wyles@gmail.com 2024-12-05T23:22:09+00:00 2ccf7ed277df28651b94bbee9fccefdf22fb074f Use SymbolStringPtr for Symbol names in LinkGraph. This reduces string interning on the boundary between JITLink and ORC, and allows pointer comparisons (rather than string comparisons) between Symbol names. This should improve the performance and readability of code that bridges between JITLink and ORC (e.g. ObjectLinkingLayer and ObjectLinkingLayer::Plugins). To enable use of SymbolStringPtr a std::shared_ptr<SymbolStringPool> is added to LinkGraph and threaded through to its construction sites in LLVM and Bolt. All LinkGraphs that are to have symbol names compared by pointer equality must point to the same SymbolStringPool instance, which in ORC sessions should be the pool attached to the ExecutionSession. --------- Co-authored-by: Lang Hames <lhames@gmail.com> 
Use SymbolStringPtr for Symbol names in LinkGraph. This reduces string interning
on the boundary between JITLink and ORC, and allows pointer comparisons (rather
than string comparisons) between Symbol names. This should improve the
performance and readability of code that bridges between JITLink and ORC (e.g.
ObjectLinkingLayer and ObjectLinkingLayer::Plugins).

To enable use of SymbolStringPtr a std::shared_ptr<SymbolStringPool> is added to
LinkGraph and threaded through to its construction sites in LLVM and Bolt. All
LinkGraphs that are to have symbol names compared by pointer equality must point
to the same SymbolStringPool instance, which in ORC sessions should be the pool
attached to the ExecutionSession.
---------

Co-authored-by: Lang Hames <lhames@gmail.com>
 [ExecutionEngine] Remove unused includes (NFC) (#116749) 2024-11-20T03:41:59+00:00 Kazu Hirata kazu@google.com 2024-11-20T03:41:59+00:00 1f4d91ecb8529678a3d3919d7523743bd21942ca Identified with misc-include-cleaner. 
Identified with misc-include-cleaner.
 [llvm] Stop including Endian.h (NFC) 2023-10-22T05:23:02+00:00 Kazu Hirata kazu@google.com 2023-10-22T05:23:01+00:00 1f12223cf411b79cfc9f552ff8711958a7856002 These files satisfy all of the following: - misc-include-cleaner indicates that these files do not need Endian.h. - They do not mention "endian" anywhere. - They do not include any *.inc or *.def, which could need llvm::support::endian. 
These files satisfy all of the following:

- misc-include-cleaner indicates that these files do not need
  Endian.h.
- They do not mention "endian" anywhere.
- They do not include any *.inc or *.def, which could need
  llvm::support::endian.
[JITLink][COFF] Initial COFF support. 2022-07-12T18:52:43+00:00 Sunho Kim ksunhokim123@gmail.com 2022-07-12T18:50:37+00:00 db995d72db14e58a3a81b0c2668bf788a61cc131 Adds initial COFF support in JITLink. This is able to run a hello world c program in x86 windows successfully. Implemented - COFF object loader - Static local symbols - Absolute symbols - External symbols - Weak external symbols - Common symbols - COFF jitlink-check support - All COMDAT selection type execpt largest - Implicit symobl size calculation - Rel32 relocation with PLT stub. - IMAGE_REL_AMD64_ADDR32NB relocation Reviewed By: lhames Differential Revision: https://reviews.llvm.org/D128968 
Adds initial COFF support in JITLink. This is able to run a hello world c program in x86 windows successfully.

Implemented
- COFF object loader
- Static local symbols
- Absolute symbols
- External symbols
- Weak external symbols
- Common symbols
- COFF jitlink-check support
- All COMDAT selection type execpt largest
- Implicit symobl size calculation
- Rel32 relocation with PLT stub.
- IMAGE_REL_AMD64_ADDR32NB relocation

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D128968