diff options
| author | Reid Kleckner <rnk@google.com> | 2018-03-16 20:13:32 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2018-03-16 20:13:32 +0000 |
| commit | 025ee4f9cce917b199e3b42b07b99ec1144cdda6 (patch) | |
| tree | 17f0dd89363616e6215142a889638944a909bda3 /docs/ReleaseNotes.rst | |
| parent | f6f2e196818fca6c179ac08dff763772478e687a (diff) | |
[IR] Avoid the need to prefix MS C++ symbols with '\01'
Now the Windows mangling modes ('w' and 'x') do not do any mangling for
symbols starting with '?'. This means that clang can stop adding the
hideous '\01' leading escape. This means LLVM debug logs are less likely
to contain ASCII escape characters and it will be easier to copy and
paste MS symbol names from IR.
Finally.
For non-Windows platforms, names starting with '?' still get IR
mangling, so once clang stops escaping MS C++ names, we will get extra
'_' prefixing on MachO. That's fine, since it is currently impossible to
construct a triple that uses the MS C++ ABI in clang and emits macho
object files.
Differential Revision: https://reviews.llvm.org/D7775
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327734 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/ReleaseNotes.rst')
| -rw-r--r-- | docs/ReleaseNotes.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 53d3abec956..1deeb650e7d 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -42,6 +42,9 @@ Non-comprehensive list of changes in this release * The LoopInstSimplify pass (-loop-instsimplify) has been removed. +* Symbols starting with ``?`` are no longer mangled by LLVM when using the + Windows ``x`` or ``w`` IR mangling schemes. + * Note.. .. NOTE |