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Yonghong Song c68ee0ce70 [BPF] Permit all user instructed offset relocatiions 
Currently, not all user specified relocations
(with clang intrinsic __builtin_preserve_access_index())
will turn into relocations.

In the current implementation, a __builtin_preserve_access_index()
chain is turned into relocation only if the result of the clang
intrinsic is used in a function call or a nonzero offset computation
of getelementptr. For all other cases, the relocatiion request
is ignored and the __builtin_preserve_access_index() is turned
into regular getelementptr instructions.
The main reason is to mimic bpf_probe_read() requirement.

But there are other use cases where relocatable offset is
generated but not used for bpf_probe_read(). This patch
relaxed previous constraints when to generate relocations.
Now, all user __builtin_preserve_access_index() will have
relocations generated.

Differential Revision: https://reviews.llvm.org/D67688

llvm-svn: 372198
 		2019-09-18 03:49:07 +00:00
clang [X86] Prevent assertion when calling a function that returns double with -mno-sse2 on x86-64. 2019-09-18 01:57:46 +00:00
clang-tools-extra [clangd] Fix another TSAN issue 2019-09-17 14:56:11 +00:00
compiler-rt Remove asan test for strncat(x, y, 0) 2019-09-17 17:17:30 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libc Add a director, along with README.txt and LICENSE.txt, for libc. 2019-09-16 21:39:08 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx Revert "Implement std::condition_variable via pthread_cond_clockwait() where available" 2019-09-16 21:20:32 +00:00
libcxxabi Update XFAIL list for new GCC versions 2019-09-13 18:43:29 +00:00
libunwind [runtimes] Don't depend on libpthread on Android 2019-07-22 20:41:03 +00:00
lld [ELF][AARCH64] Refactor AArchErrataFix to match changes in ARMErrataFix NFC. 2019-09-17 09:49:30 +00:00
lldb Clean up this test. 2019-09-18 01:53:52 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [BPF] Permit all user instructed offset relocatiions 2019-09-18 03:49:07 +00:00
openmp [OpenMP] Change initialization of __kmp_global 2019-09-04 17:47:37 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [CodeGen] Handle outlining of CopyStmts. 2019-09-17 22:59:43 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +00:00
README.md
…

README.md

The LLVM Compiler Infrastructure

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