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Ilya Biryukov d5554c512d Adding HardLink Support to VirtualFileSystem. 
Summary:
Added support of creating a hardlink from one file to another file.
After a hardlink is added between two files, both file will have the same:
  1. UniqueID (inode)
  2. Size
  3. Buffer

This will bring replay of compilation closer to the actual compilation. There are instances where clang checks for the UniqueID of the file/header to be loaded which leads to a different behavior during replay as all files have different UniqueIDs.

Patch by Utkarsh Saxena!

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D51359

llvm-svn: 341366
 		2018-09-04 14:15:53 +00:00
clang Adding HardLink Support to VirtualFileSystem. 2018-09-04 14:15:53 +00:00
clang-tools-extra Remove lambda default parameter to silence -Wpedantic warning. NFCI. 2018-09-04 12:17:10 +00:00
compiler-rt [asan] Clean up some confusing code in 2018-09-03 10:33:32 +00:00
debuginfo-tests Revert "(Retry) Add a basic integration test for C++ smart pointers" 2018-08-20 19:53:33 +00:00
libclc amdgcn: Use __constant AS for amdgcn builtins. 2018-08-03 15:14:08 +00:00
libcxx Last week, someone noted that a couple of the time_point member functions were not constexpr. I looked, and they were right. They were made constexpr in p0505, so I looked at all the other bits in that paper to make sure that I didn't miss anything else. There were a couple methods in the synopsis that should have been marked constexpr, but the code was correct. 2018-08-29 23:02:15 +00:00
libcxxabi Port my recent changes from LLVM copy of the demangler: 2018-08-24 23:30:26 +00:00
libunwind Export public functions implemented in assembly on Windows. 2018-08-31 18:11:48 +00:00
lld [DebugInfo] Common behavior for error types 2018-08-31 17:41:58 +00:00
lldb [NFC] Fixed enum constant in boolean context error 2018-09-03 22:09:08 +00:00
llgo Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm Revert r341269: [Constant Hoisting] Hoisting Constant GEP Expressions 2018-09-04 13:36:44 +00:00
openmp [libomptarget][NVPTX] Fix __kmpc_spmd_kernel_deinit 2018-09-03 17:24:23 +00:00
parallel-libs Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
polly [IR] Replace `isa<TerminatorInst>` with `isTerminator()`. 2018-08-26 09:51:22 +00:00
README.md
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README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.