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| author | David L Kreitzer <david.l.kreitzer@intel.com> | 2016-05-03 20:20:59 +0000 |
|---|---|---|
| committer | David L Kreitzer <david.l.kreitzer@intel.com> | 2016-05-03 20:20:59 +0000 |
| commit | a8f1bd60d7772bf9dd0aadef1d1e520d0abdcc59 (patch) | |
| tree | c6143133dbb153a28175eb778f7c097cc901af7d /docs/LanguageExtensions.rst | |
| parent | e5f7c6de54ffb00536904d0ac165ab24ba7ffc3b (diff) | |
Add address space 258 (X86 SS segment) to clang documentation.
The change reflects llvm r268431.
Patch by Michael Lemay (michael.lemay@intel.com)
Differential Revision: http://reviews.llvm.org/D19458
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@268432 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/LanguageExtensions.rst')
| -rw-r--r-- | docs/LanguageExtensions.rst | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/docs/LanguageExtensions.rst b/docs/LanguageExtensions.rst index 75c1c1d29c..59faa9e519 100644 --- a/docs/LanguageExtensions.rst +++ b/docs/LanguageExtensions.rst @@ -1912,12 +1912,13 @@ X86/X86-64 Language Extensions The X86 backend has these language extensions: -Memory references off the GS segment -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Memory references to specified segments +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Annotating a pointer with address space #256 causes it to be code generated -relative to the X86 GS segment register, and address space #257 causes it to be -relative to the X86 FS segment. Note that this is a very very low-level +relative to the X86 GS segment register, address space #257 causes it to be +relative to the X86 FS segment, and address space #258 causes it to be +relative to the X86 SS segment. Note that this is a very very low-level feature that should only be used if you know what you're doing (for example in an OS kernel). |