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| author | Tim Northover <tnorthover@apple.com> | 2018-11-01 18:04:49 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2018-11-01 18:04:49 +0000 |
| commit | c1ac697ab788f8572898c2c1837bfe783d8409ef (patch) | |
| tree | 6becedc6dcc407eeffc950f8e104aa0915980d14 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | fe3bc1b9bf7603fcd4984b7e6c721f95171a56f8 (diff) | |
| download | llvm-c1ac697ab788f8572898c2c1837bfe783d8409ef.zip llvm-c1ac697ab788f8572898c2c1837bfe783d8409ef.tar.gz llvm-c1ac697ab788f8572898c2c1837bfe783d8409ef.tar.bz2 | |
Reapply Logging: make os_log buffer size an integer constant expression.
The size of an os_log buffer is known at any stage of compilation, so making it
a constant expression means that the common idiom of declaring a buffer for it
won't result in a VLA. That allows the compiler to skip saving and restoring
the stack pointer around such buffers.
This also moves the OSLog helpers from libclangAnalysis to libclangAST
to avoid a circular dependency.
llvm-svn: 345866
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions