of a macro. Since these tokens may themselves be from macro
expansions, we need to resolve down to the spelling loc when the
macro ends up being instantiated. Instead of resolving this for
each token expanded from the macro definition, just do it once when
the macro is defined. This speeds up clang on c99-intconst-1.c from
2.66s to 2.43s (9.5%), reducing the FileID lookups from 407244 linear and
114175649 binary to 2529040 linear and 64771121 binary.
llvm-svn: 62993
ground work for implementing #line, and fixes the "out of macro ID's"
problem.
There is nothing particularly tricky about the code, other than the
very performance sensitive SourceManager::getFileID() method.
llvm-svn: 62978
NumericLiteral parser is not careful about overrun because
it should never be possible. It implicitly expects that its
input matched the regex for pp-constant. Because of this, it
knows it can't be pointing to a prefix of something that
looks like a number. This is all fine, except that __LINE__
does not prevent implicit concatenation from happening. Fix
__LINE__ to not do this.
llvm-svn: 56818
lib dir and move all the libraries into it. This follows the main
llvm tree, and allows the libraries to be built in parallel. The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in. This speeds
up parallel builds, particularly incremental ones.
llvm-svn: 48402
Chris Lattner