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89 Commits

Author SHA1 Message Date
Eli Friedman 865afc96f7 PR7795: Fix the definition of __WCHAR_MAX__ with -fshort-wchar. 
llvm-svn: 110126
 2010-08-03 17:34:19 +00:00
Chris Lattner 278008f546 fix some undefined behavior, PR7779. 
llvm-svn: 110116
 2010-08-03 16:48:42 +00:00
Douglas Gregor 3f4bea0646 Introduce basic support for loading a precompiled preamble while 
reparsing an ASTUnit. When saving a preamble, create a buffer larger
than the actual file we're working with but fill everything from the
end of the preamble to the end of the file with spaces (so the lexer
will quickly skip them). When we load the file, create a buffer of the
same size, filling it with the file and then spaces. Then, instruct
the lexer to start lexing after the preamble, therefore continuing the
parse from the spot where the preamble left off.

It's now possible to perform a simple preamble build + parse (+
reparse) with ASTUnit. However, one has to disable a bunch of checking
in the PCH reader to do so. That part isn't committed; it will likely
be handled with some other kind of flag (e.g., -fno-validate-pch).

As part of this, fix some issues with null termination of the memory
buffers created for the preamble; we were trying to explicitly
NULL-terminate them, even though they were also getting implicitly
NULL terminated, leading to excess warnings about NULL characters in
source files.

llvm-svn: 109445
 2010-07-26 21:36:20 +00:00
Douglas Gregor be2d8c6096 Basic plumbing for generating a precompiled preamble for an 
ASTUnit/CXTranslationUnit. We can't actually use this preamble yet,
however.

llvm-svn: 109202
 2010-07-23 00:33:23 +00:00
Daniel Dunbar 120a1e9d0f Headers: Define __INT64_TYPE__ in terms of getInt64Type(), which isn't always 
'long'. The practical upshot is so that the uint64_t we define in our stdint.h
ends up being compatible with that defined by gcc (at least on Darwin), which
otherwise could lead to type incompatibilities with other system headers.

llvm-svn: 107255
 2010-06-30 06:30:56 +00:00
Ted Kremenek e60d304d13 Remove state assertion. 
llvm-svn: 107064
 2010-06-28 20:44:49 +00:00
Ted Kremenek ea78375ed4 Don't crash in InitializePreprocessor() when there is no valid PTHManager. Fixes <rdar://problem/8098441>. 
llvm-svn: 107061
 2010-06-28 20:32:40 +00:00
Eric Christopher ca10da8839 Remove HAS_TLS define. 
llvm-svn: 106786
 2010-06-24 20:41:41 +00:00
Eric Christopher 03256c32ff More clang support for darwin tls. Add a __has_feature macro and 
target specific preprocessor define as well.

llvm-svn: 106715
 2010-06-24 02:02:00 +00:00
Dan Gohman 04f8720118 Add several more predefines from modern versions of GCC. 
llvm-svn: 104906
 2010-05-28 00:27:15 +00:00
Ted Kremenek 34ddec630c Predefine the '__clang_analyzer__' macro when using '-analyze'. 
llvm-svn: 104742
 2010-05-26 21:36:54 +00:00
Douglas Gregor 6602c25c0c Add Clang version inspection macros. Fixes PR6681. 
llvm-svn: 102686
 2010-04-30 02:51:06 +00:00
Chris Lattner 678eaa90ab fix PR6936: don't generate line marker directives when preprocessing 
.S files.  "# 123" is passed through as-is, not treated as a line
marker in this mode.  No testcase, because it would be nasty and isn't
worth it.

llvm-svn: 102391
 2010-04-26 22:08:10 +00:00
Douglas Gregor 3ecc665505 Sink the _GNU_SOURCE definition down into the target configuration, 
and only define it where we know we need it---Linux and Cygwin. Thanks
to Chris for the prodding.

llvm-svn: 101989
 2010-04-21 05:52:38 +00:00
Douglas Gregor d2b896ab69 Only predefine the macro _GNU_SOURCE in C++ mode when we're on a 
platform that typically uses glibc. Fixes a Boost.Thread compilation
failure.

llvm-svn: 101450
 2010-04-16 06:31:05 +00:00
Douglas Gregor 89a56c561f When given unsaved files in clang_createTranslationUnitFromSourceFile, 
copy the source buffers provided rather than referencing them
directly, so that the caller can free those buffers immediately after
calling clang_createTranslationUnitFromSourceFile(). Otherwise, we
risk hitting those buffers later (when building source ranges, forming
diagnostics, etc.). 

llvm-svn: 97296
 2010-02-27 01:32:48 +00:00
Daniel Dunbar 3241d400c8 Switch to using -fsjlj-exceptions instead of hard-coding it. Notably, this fixes 
calls to the UnwindResumeOrRethrow function for C++/Obj-C exception handling,
for Darwin ARM.

llvm-svn: 95787
 2010-02-10 18:49:11 +00:00
Douglas Gregor aa98ed9a07 Extend clang_createTranslationUnitFromSourceFile() to support creating 
translation units that include unsaved files.

llvm-svn: 94258
 2010-01-23 00:14:00 +00:00
Chandler Carruth 26b29a0892 Move the MacroBuilder utilitiy to its own header. Update references. 
Comments and/or improvements to the documentation are welcome.

llvm-svn: 93982
 2010-01-20 06:13:02 +00:00
Daniel Dunbar 415763612a Fix an invalid Twine use spotty by abbeyj, it isn't safe to use Twine 
temporaries (this is one reason I'm nervous about propagating their use beyond
particularly performance critical places).

llvm-svn: 93981
 2010-01-20 06:09:53 +00:00
Fariborz Jahanian 3f7b8b274d Predefine __weak attribute when doing objective-c 
rewriting for any target. (refixes radar 7530235).

llvm-svn: 93331
 2010-01-13 18:51:17 +00:00
Daniel Dunbar d281a7146a Fix PR5982, a refacto in checking for '=' in a -D argument. 
llvm-svn: 93088
 2010-01-10 00:46:21 +00:00
Benjamin Kramer 2d6fda3205 Use MacroBuilder for TargetDefines instead of std::vector. 
llvm-svn: 93058
 2010-01-09 17:55:51 +00:00
Benjamin Kramer 3f6323dea5 Move MacroBuilder into Frontend/Utils.h and clean it up a bit. 
llvm-svn: 93057
 2010-01-09 17:43:21 +00:00
Benjamin Kramer f65e959035 Rework InitPreprocessor to use a MacroBuilder class instead of pushing around 
std::vectors.

- MacroBuilder wraps a raw_ostream so it can easily write to any buffer
  supported by raw_ostream.
- MacroBuilder's method take Twines for easy string concatenation (this was done
  with sprintf and temporary buffers before).
- Targets still use std::vector as they don't have access to the builder.

llvm-svn: 93051
 2010-01-09 16:17:37 +00:00
Kovarththanan Rajaratnam e8ed5be89f Switch UndefineBuiltinMacro() over to using StringRef 
llvm-svn: 93049
 2010-01-09 09:31:32 +00:00
Kovarththanan Rajaratnam 2f14619d89 Switch DefineBuiltinMacro() over to using StringRef 
llvm-svn: 93048
 2010-01-09 09:27:11 +00:00
Kovarththanan Rajaratnam 49c8da95a3 Convert from char pointer to char array 
llvm-svn: 92923
 2010-01-07 18:11:14 +00:00
Kovarththanan Rajaratnam b53c7d4d9d Tigthen scope of local char array 
llvm-svn: 92917
 2010-01-07 16:01:54 +00:00
Steve Naroff f0df20a5ba Integrate the following from the 'objective-rewrite' branch: 
http://llvm.org/viewvc/llvm-project?view=rev&revision=70926

llvm-svn: 90596
 2009-12-04 21:29:41 +00:00
Daniel Dunbar 6dac935b1f Fix two more diagnostic-on-stderr instances that thought they could hide from me -- they thought wrong. 
llvm-svn: 90442
 2009-12-03 09:14:12 +00:00
Douglas Gregor 407e2124bf Extend -remap-file=from;to to permit mapping from a non-existent 
file. This is accomplished by introducing the notion of a "virtual"
file into the file manager, which provides a FileEntry* for a named
file whose size and modification time are known but which may not
exist on disk.

Added a cute little test that remaps both a .c file and a .h file it
includes to alternative files.

llvm-svn: 90329
 2009-12-02 18:12:28 +00:00
Douglas Gregor 6ae34abd1b Move file-remapping logic into InitPreprocesor. No functionality change 
llvm-svn: 90322
 2009-12-02 16:32:41 +00:00
Rafael Espindola f8a04a1d6e Exit the command line into <built-in> instead of going directly from the command line to the input file. 
We passed <built-in> on the way in, so we should pass it again on the way out.

llvm-svn: 90250
 2009-12-01 18:28:16 +00:00
Ken Dyck adc8511bc8 Define __SIG_ATOMIC_WIDTH__ for use in stdint.h. 
llvm-svn: 89597
 2009-11-22 15:41:04 +00:00
Ken Dyck 0138b9e1db Define __WCHAR_WIDTH__ for use in stdint.h. 
llvm-svn: 89353
 2009-11-19 15:47:58 +00:00
Ken Dyck a1f677c3d1 Add __WINT_WIDTH__ to paramaterize the limits of WINT_MIN and WINT_MAX in 
stdint.h.

llvm-svn: 89348
 2009-11-19 14:16:57 +00:00
Ken Dyck 575128656e Add __SIZE_WIDTH__ to eventually replace __SIZE_TYPE__ in stdint.h. 
llvm-svn: 89346
 2009-11-19 13:42:09 +00:00
Ken Dyck 9b25f781c5 Restore __INTMAX_TYPE__, __UINTMAX_TYPE__, __PTRDIFF_TYPE__, and 
__INTPTR_TYPE__ as the last is used in the test/CodeGen/const-init.c and all
could potentially be in use in the wild. My apologies.

llvm-svn: 89345
 2009-11-19 13:18:59 +00:00
Ken Dyck f982fc0b23 Remove __PTRDIFF_TYPE__ as it is no longer needed by stdint.h. It has been 
replaced with __PTRDIFF_WIDTH__.

llvm-svn: 89344
 2009-11-19 12:37:14 +00:00
Ken Dyck 056efe0fc7 Add __PTRDIFF_WIDTH__ macro to eventually replace __PTRDIFF_TYPE__ in stdint.h. 
llvm-svn: 89342
 2009-11-19 12:21:52 +00:00
Ken Dyck cc11129fda Remove __INTPTR_TYPE__ as it is no longer needed by stdint.h, which uses 
__INTPTR_WIDTH__ instead.

llvm-svn: 89340
 2009-11-19 12:15:31 +00:00
Ken Dyck 24cfcf15c3 Predefine __INTPTR_WIDTH__ for future use in stdint.h. 
llvm-svn: 89231
 2009-11-18 20:05:48 +00:00
Ken Dyck fa01168a5c Remove the __INTMAX_TYPE__ and __UINTMAX_TYPE__ built-in macros as they are no 
longer used by stdint.h.

llvm-svn: 89230
 2009-11-18 19:51:06 +00:00
Ken Dyck c0c98291e0 Predefine __INTMAX_WIDTH__ for the future parameterization of INTMAX macros in 
stdint.h.

llvm-svn: 89203
 2009-11-18 13:52:57 +00:00
Daniel Dunbar d6ea9028e7 Simplify PreprocessorOptions, it doesn't need abstracted field access. 
llvm-svn: 89047
 2009-11-17 05:52:41 +00:00
Ken Dyck 2dc8d5fa3e Parameterize the constant-generating macros in stdint.h with new built-in 
__INTn_C_SUFFIX__ macros that are defined for types with corresponding
constant suffixes (i.e. long and long long).

llvm-svn: 88914
 2009-11-16 16:36:33 +00:00
Chris Lattner 55c9877b66 Generalize stdint.h for non-8-bit-multiple types, patch by 
Ken Dyck!

"This adds definitions for types of 8-bit multiples
from 8 to 64 to stdint.h and rationalizes the selection of types 
for the exact-width definitions in InitPreprocessor.cpp."

llvm-svn: 86977
 2009-11-12 08:08:27 +00:00
Chris Lattner 0fb5bbd401 do not store wchar/char16/char32/intmax width/alignment info 
into TargetInfo, just derive this based on the underlying type.
This prevents them from getting out of synch, patch by Ken Dyck!

llvm-svn: 86976
 2009-11-12 08:04:33 +00:00
Daniel Dunbar 732ef8aefd Tweak PCH -include handling to make sure it matches the name as would be present 
in the predefines buffer.

llvm-svn: 86903
 2009-11-11 23:58:53 +00:00