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139 Commits

Author SHA1 Message Date
Chris Lattner 479b0af31d Improve placemarker handling, implementing Preprocessor/macro_fn_placemarker.c 
llvm-svn: 38778
 2006-07-29 04:16:20 +00:00
Chris Lattner 21c8b8f71e Implement support for __VA_ARGS__, allowing test/Preprocessor/macro_fn_varargs_iso.c 
to pass.

llvm-svn: 38776
 2006-07-29 04:04:22 +00:00
Chris Lattner 02f1f4f28b Fix a bug in previous commit 
llvm-svn: 38774
 2006-07-29 03:52:46 +00:00
Chris Lattner 6d9f8ed3b6 No need for explicit underscore anymore. 
llvm-svn: 38773
 2006-07-29 03:52:06 +00:00
Chris Lattner 7e37483f14 Poison and unpoison __VA_ARGS__ when appropriate 
llvm-svn: 38770
 2006-07-29 03:46:57 +00:00
Chris Lattner e7a5130dff If the varargs token is missing, add an empty argument to represent it. This 
fixes Preprocessor/macro_fn_varargs_named.c

llvm-svn: 38769
 2006-07-29 01:25:12 +00:00
Chris Lattner f3f1c709cf Use a continue to avoid indentation of a bunch of code 
llvm-svn: 38762
 2006-07-28 05:10:36 +00:00
Chris Lattner a9dc597fca Implement pasting of arguments that expand to no tokens. This handles the 
C99 "placemarker" concept.

llvm-svn: 38761
 2006-07-28 05:07:04 +00:00
Chris Lattner 6e4bf523e6 Implement C99 6.10.3.4p2, testcase here: Preprocessor/macro_disable3.c. 
llvm-svn: 38760
 2006-07-27 06:59:25 +00:00
Chris Lattner b57aa46e41 Switch ExpandFunctionArguments to use a smallvector instead of a vector, 
speeding up my macro expansion torture test from .75s to .5s (33%!)

llvm-svn: 38758
 2006-07-27 03:42:15 +00:00
Chris Lattner 7a4af3b73d Change Preprocessor::ReadFunctionLikeMacroArgs to use a SmallVector to lex 
argument tokens into instead of a real vector.  This avoids some malloc
traffic in common cases.  In an "abusive macro expansion" testcase, this
reduced -Eonly time by 25%.

llvm-svn: 38757
 2006-07-26 06:26:52 +00:00
Chris Lattner c1410dc1e6 Change MacroArgs to allocate space for the unexpanded tokens immediately after 
the MacroArgs object itself.  This is a bit more efficient and will be even more
so shortly.

llvm-svn: 38756
 2006-07-26 05:22:49 +00:00
Chris Lattner 6fc08bc77d Add a new getArgLength method and refactor some code to use it 
llvm-svn: 38755
 2006-07-26 04:55:32 +00:00
Chris Lattner 7021657a0f Implement a FIXME: don't copy token array into a token vector, instead, macroexpander should expand from an array directly. 
llvm-svn: 38754
 2006-07-26 03:50:40 +00:00
Chris Lattner 36b6e8134e speed up a brutal macro-expansion torture test by about 30% (1.5 -> 1.0s) 
by turning vectors of vectors into a single vector, reducing pressure on
malloc.  This can still be improved.

llvm-svn: 38753
 2006-07-21 06:38:30 +00:00
Chris Lattner a5f4c882e2 disable malformed string/character errors when in raw mode. This fixes 
test/Lexer/badstring_in_if0.c

llvm-svn: 38751
 2006-07-20 06:08:47 +00:00
Chris Lattner 5a78a02ea2 If an invalid string or character is read, return the invalid part as a tok::unknown token. 
llvm-svn: 38749
 2006-07-20 06:02:19 +00:00
Chris Lattner 08ba4c015f fix obvious bug that caused Preprocessor/macro_paste_bad.c to fail. 
llvm-svn: 38748
 2006-07-20 04:52:59 +00:00
Chris Lattner 510ab61fd3 Add optimization for identifier##identifier -> identifier, the most common case of token pasting. 
llvm-svn: 38747
 2006-07-20 04:47:30 +00:00
Chris Lattner 538d7f3c27 Simplify "raw lexing mode" even further. Now the preprocessor is only called 
into when a hard error is found.  This simplifies logic and eliminates the need
for the preprocessor to know about raw mode.

llvm-svn: 38746
 2006-07-20 04:31:52 +00:00
Chris Lattner 0f1f50517b Simplify identifier lookup in raw mode, implementing Preprocessor/macro_fn_lparen_scan2.c. 
llvm-svn: 38744
 2006-07-20 04:16:23 +00:00
Chris Lattner a7e2e74cef Avoid testing / ## * in the lexer. This will cause an unhelpful error message 
to be emitted from the lexer.  This fixes macro_paste_c_block_comment.c

llvm-svn: 38737
 2006-07-19 06:32:35 +00:00
Chris Lattner 30a2fa14ae Move LexingRawMode handling of file EOF out of the preprocessor into the 
lexer.  This makes more logical sense and also unbreaks the case when the
lexer hasn't been pushed onto the PP include stack.  This is the case when
pasting identifiers.  This patch implements macro_paste_bcpl_comment.c.

llvm-svn: 38736
 2006-07-19 06:31:49 +00:00
Chris Lattner e8dcfef324 Fix test/Preprocessor/macro_paste_spacing.c 
llvm-svn: 38734
 2006-07-19 05:45:55 +00:00
Chris Lattner 01ecf835c2 Implement basic token pasting (## operator). This implements 
test/Preprocessor/macro_paste_simple.c and macro_paste_bad.c.  There are
several known bugs still.

llvm-svn: 38733
 2006-07-19 05:42:48 +00:00
Chris Lattner a0d9bf4e83 Fix message in assert to be more accurate. 
llvm-svn: 38732
 2006-07-19 05:42:09 +00:00
Chris Lattner f918bf71ef update comment 
llvm-svn: 38731
 2006-07-19 05:01:18 +00:00
Chris Lattner da63bcdc03 Simplify this by using a higher-level method. 
llvm-svn: 38730
 2006-07-19 04:36:03 +00:00
Chris Lattner 7e2e669080 Handle really simple expansion of ## formals. Do not handle the empty case 
yet though.

llvm-svn: 38729
 2006-07-19 03:51:26 +00:00
Chris Lattner 2183a6e8f4 Make end-of-file handling much less recursive. This reduces the worst case 
stack depth sampled by shark from ~34 to ~17 frames when preprocessing <iostream>.

llvm-svn: 38726
 2006-07-18 06:36:12 +00:00
Chris Lattner 7667d0d942 Implement support for lexing from a pre-constructed token stream. 
Use this support to implement function-like macro argument preexpansion.

This implements test/Preprocessor/macro_fn_preexpand.c

llvm-svn: 38724
 2006-07-16 18:16:58 +00:00
Chris Lattner 203b4568e2 Implement basic argument substitution. This implements 
test/Preprocessor/macro_fn_disable_expand.c

llvm-svn: 38720
 2006-07-15 21:07:40 +00:00
Chris Lattner 7c58149107 Clarify assertion 
llvm-svn: 38718
 2006-07-15 07:56:31 +00:00
Chris Lattner 2ada5d3890 More changes from formals -> actuals. 
llvm-svn: 38717
 2006-07-15 07:51:24 +00:00
Chris Lattner ee8760b21b Rename macroformalargs -> MacroArgs, as it represents the actual arguments, 
not the formal arguments, to a macro.

llvm-svn: 38716
 2006-07-15 07:42:55 +00:00
Chris Lattner c653246bfb Eliminate the IdentifierInfo::IsMacroArg flag. 
llvm-svn: 38715
 2006-07-15 06:55:18 +00:00
Chris Lattner 6016169cb8 The leading space flag of a stringized string matches that of the # operator. 
llvm-svn: 38713
 2006-07-15 06:48:02 +00:00
Chris Lattner c783d1dff9 Implement the microsoft charize extension #@ 
llvm-svn: 38712
 2006-07-15 06:11:25 +00:00
Chris Lattner 2b271db205 Lex the microsoft 'charize' extension. 
llvm-svn: 38711
 2006-07-15 05:41:09 +00:00
Chris Lattner f2781509f9 Add a comment giving an example of the error 
llvm-svn: 38710
 2006-07-15 05:27:44 +00:00
Chris Lattner 0707bd3042 Implement stringification. 
llvm-svn: 38709
 2006-07-15 05:23:58 +00:00
Chris Lattner ecc39e9325 Change Lexer::Stringify to not add ""'s around the string. 
llvm-svn: 38708
 2006-07-15 05:23:31 +00:00
Chris Lattner b935d8cd90 Set up infrastructure for function-like macro expansion with preexpansion 
stringizing, etc.

llvm-svn: 38707
 2006-07-14 06:54:44 +00:00
Chris Lattner b94ec7b668 Add an API so that external clients can create strings in the scratch buffer. 
llvm-svn: 38706
 2006-07-14 06:54:10 +00:00
Chris Lattner 041bef8b32 The lexer should not warn about stray characters, it should just return 
tok::unknown tokens.  This fixes test/Lexer/unknown-char.c

llvm-svn: 38703
 2006-07-11 05:52:53 +00:00
Chris Lattner 678c880a69 Move Preprocessor::isNextPPTokenLParen to Lexer::isNextPPTokenLParen, where 
it more rightly belongs.

llvm-svn: 38702
 2006-07-11 05:46:12 +00:00
Chris Lattner 3ebcf4e2cd Change Preprocessor::SkippingContents into Lexer::LexingRawMode. Raw mode 
is an intra-lexer property, not a inter-lexer property, so it makes sense
for it to be define here.  It also makes no sense for macros, and allows us
to define it more carefully in the header.

While I'm at it, improve comments and structuring in Lexer.h

llvm-svn: 38701
 2006-07-11 05:39:23 +00:00
Chris Lattner 69f88b883d Fix a regression on Preprocessor/hash_space.c 
llvm-svn: 38700
 2006-07-11 05:07:29 +00:00
Chris Lattner d8aee0e81b Implement "lparen scanning" for lexer buffers, by making "skipping lexing" 
completely reversible.  This implements tests 3/4 of
test/Preprocessor/macro_fn_lparen_scan.c

llvm-svn: 38699
 2006-07-11 05:04:55 +00:00
Chris Lattner a12dd15b56 ext-warn on empty macro arguments if in pre-c99 mode 
llvm-svn: 38697
 2006-07-11 04:09:02 +00:00