diff options
Diffstat (limited to 'clang/docs/LanguageExtensions.rst')
| -rw-r--r-- | clang/docs/LanguageExtensions.rst | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst index 75c1c1d29cd..59faa9e5196 100644 --- a/clang/docs/LanguageExtensions.rst +++ b/clang/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). |
