bottleneck for -E computation, because every token that starts a line needs
to determine *which* line it is on (so -E mode can insert the appropriate
vertical whitespace). This optimization improves this common case where
it is striding through the line # table.
This speeds up -E on xalancbmk by 3.2%
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40459 91177308-0d34-0410-b5e6-96231b3b80d8
redefinition of a macro could cause invalid memory to be deleted.
Found preprocessing 253.perlbmk.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40380 91177308-0d34-0410-b5e6-96231b3b80d8
needs to query the expression for the type. Since both these functions guarantee the expression
contains a valid type, removed old/vacuous asserts (from code calling both of these routines).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39930 91177308-0d34-0410-b5e6-96231b3b80d8
accurate diagnostics. For test/Lexer/comments.c we now emit:
int x = 000000080; /* expected-error {{invalid digit}} */
^
constants.c:7:4: error: invalid digit '8' in octal constant
00080; /* expected-error {{invalid digit}} */
^
The last line is due to an escaped newline. The full line looks like:
int y = 0000\
00080; /* expected-error {{invalid digit}} */
Previously, we emitted:
constants.c:4:9: error: invalid digit '8' in octal constant
int x = 000000080; /* expected-error {{invalid digit}} */
^
constants.c:6:9: error: invalid digit '8' in octal constant
int y = 0000\
^
which isn't too bad, but the new way is better for the user,
regardless of whether there is an escaped newline or not.
All the other lexer-related diagnostics should switch over
to using AdvanceToTokenCharacter where appropriate. Help
wanted :).
This implements test/Lexer/constants.c.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39906 91177308-0d34-0410-b5e6-96231b3b80d8
I've added a tests/CodeGen directory, and a test for this case that
used to fail and now passes."
Patch by Keith Bauer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39794 91177308-0d34-0410-b5e6-96231b3b80d8
Chris Lattner
Steve Naroff
Reid Spencer