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| author | Kristina Brooks <kristina@nym.hush.com> | 2018-10-18 03:14:37 +0000 |
|---|---|---|
| committer | Kristina Brooks <kristina@nym.hush.com> | 2018-10-18 03:14:37 +0000 |
| commit | 312fcc116bc2d38d852ba1fd08c6840bf828ec36 (patch) | |
| tree | 46ca85d68e34f538340197789b046a55ef56637d /llvm/lib/Transforms/Utils/BuildLibCalls.cpp | |
| parent | a35912da9f44f7f3b885a4c1f567b1ac672978e1 (diff) | |
| download | bcm5719-llvm-312fcc116bc2d38d852ba1fd08c6840bf828ec36.tar.gz bcm5719-llvm-312fcc116bc2d38d852ba1fd08c6840bf828ec36.zip | |
[X86] Support for the mno-tls-direct-seg-refs flag
Allows to disable direct TLS segment access (%fs or %gs). GCC supports
a similar flag, it can be useful in some circumstances, e.g. when a thread
context block needs to be updated directly from user space. More info
and specific use cases: https://bugs.llvm.org/show_bug.cgi?id=16145
There is another revision for clang as well.
Related: D53102
All X86 CodeGen tests appear to pass:
```
[46/47] Running lit suite /SourceCache/llvm-trunk-8.0/test/CodeGen
Testing Time: 23.17s
Expected Passes : 3801
Expected Failures : 15
Unsupported Tests : 8021
```
Reviewed by: Craig Topper.
Patch by nruslan (Ruslan Nikolaev).
Differential Revision: https://reviews.llvm.org/D53103
llvm-svn: 344723
Diffstat (limited to 'llvm/lib/Transforms/Utils/BuildLibCalls.cpp')
0 files changed, 0 insertions, 0 deletions
