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1547 Commits

Author SHA1 Message Date
Benjamin Kramer
dce83c522c Avoid initializing posix_spawn_file_actions_t if not used. 
- glibc falls back to fork+exec if a file actions object is present.
- On BSDs this saves a malloc.

llvm-svn: 127969
 2011-03-20 15:52:24 +00:00
Ted Kremenek
32aea2e401 Tweak CrashRecoveryContextCleanup to provide an easy method for clients to select between 'delete' and 'destructor' cleanups, and allow the destructor of CrashRecoveryContextCleanupRegister to be pseudo re-entrant. 
llvm-svn: 127929
 2011-03-19 00:59:37 +00:00
Ted Kremenek
794a0714ad Tweak CrashRecoveryContext::GetCurrent() to return quickly if 'gCrsahRecoveryEnabled' is false. This avoids us needing to go to thread local storage for 
the performance sensitive case where we are compiling code.

llvm-svn: 127928
 2011-03-19 00:59:33 +00:00
Jim Grosbach
806d507b0f setExecutable() should default to success if there's nothing custom for it. 
llvm-svn: 127891
 2011-03-18 18:51:03 +00:00
NAKAMURA Takumi
bac0d769cd raw_ostream: [PR6745] Tweak formatting (double)%e for Windows hosts. 
On MSVCRT and compatible, output of %e is incompatible to Posix by default. Number of exponent digits should be at least 2. "%+03d"

FIXME: Implement our formatter in future!
llvm-svn: 127872
 2011-03-18 09:30:10 +00:00
Bill Wendling
a50db6544f Initialize the only-used-with-PPC-double-double parts of the APFloat class. This 
makes valgrind stop complaining about uninitialized variables being read when it
accesses a bitfield (category) that shares its bits with these variables.

llvm-svn: 127871
 2011-03-18 09:09:44 +00:00
Rafael Espindola
7c9cc46165 Check RequiresNullTerminator first, or we might read from an invalid address. 
llvm-svn: 127853
 2011-03-18 02:55:51 +00:00
Ted Kremenek
c44d3cf581 Augment CrashRecoveryContext to have registered "cleanup" objects that can be used to release resources during a crash. 
llvm-svn: 127849
 2011-03-18 02:05:11 +00:00
Rafael Espindola
ab959a2e68 Use RequiresNullTerminator to create buffers without a null terminator 
instead of copying.

llvm-svn: 127835
 2011-03-17 22:18:42 +00:00
Benjamin Kramer
09a51bab5d Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number. 
This will come in handy soon.

llvm-svn: 127828
 2011-03-17 20:39:06 +00:00
NAKAMURA Takumi
76e68ea916 lib/Support/raw_ostream.cpp: On mingw, report_fatal_error() should not be called at dtor context. 
report_fatal_error() invokes exit(). We know report_fatal_error() might not write messages to stderr when any errors were detected on FD == 2.

llvm-svn: 127726
 2011-03-16 02:53:39 +00:00
NAKAMURA Takumi
a3d4749e24 Windows/PathV2.inc: [PR8520] Recognize "NUL" as special (character) file. 
FIXME: It is a temporal hack. We should detect as many "special file name" as possible.
llvm-svn: 127724
 2011-03-16 02:53:32 +00:00
NAKAMURA Takumi
aaa9b4f824 Windows/Path.inc: [PR6270] PathV1::makeUnique(): Give arbitrary initial seed for workaround. 
FIXME: We should use sys::fs::unique_file() in future.
llvm-svn: 127723
 2011-03-16 02:53:24 +00:00
John Thompson
d0332e4efe Add scei vendor 
llvm-svn: 127705
 2011-03-15 21:51:56 +00:00
Rafael Espindola
cbe6a1ae86 Don't compute the file size if we don't need to. 
llvm-svn: 127426
 2011-03-10 20:54:07 +00:00
Rafael Espindola
258a605fce Add r127409 back now that the windows file was updated. 
llvm-svn: 127417
 2011-03-10 18:33:29 +00:00
Rafael Espindola
510b00c67c Try to fix the windows build. 
llvm-svn: 127416
 2011-03-10 18:30:48 +00:00
Jakob Stoklund Olesen
e413d9d341 Revert r127409 which broke all the Windows bots. 
llvm-svn: 127413
 2011-03-10 18:01:43 +00:00
Rafael Espindola
ea5a137e55 Add support for MemoryBuffers that are not null terminated and add 
support for creating buffers that cover only a part of a file.

llvm-svn: 127409
 2011-03-10 16:10:30 +00:00
NAKAMURA Takumi
5918457b5b lib/Support/regcomp.c: Fix cygwin warning. 
llvm-svn: 127241
 2011-03-08 12:25:29 +00:00
NAKAMURA Takumi
3e76b502a4 Windows/PathV2.inc: Eliminate redundant condition. DWORD is unsigned. 
llvm-svn: 127140
 2011-03-07 00:12:53 +00:00
Benjamin Kramer
dfb0ad30a8 raw_ostream: while it is generally desirable to do larger writes, it can lead to 
inefficient file system buffering if the writes are not a multiple of the desired
buffer size. Avoid this by limiting the large write to a multiple of the buffer
size and copying the remainder into the buffer.

Thanks to Dan for pointing this out.

llvm-svn: 127026
 2011-03-04 19:49:30 +00:00
Benjamin Kramer
acf0842088 raw_ostream: If writing a string that is larger than the buffer, write it directly instead of doing many buffer-sized writes. 
This caps the number of write(2) calls per string to a maximum of 2.

llvm-svn: 127010
 2011-03-04 18:18:16 +00:00
Daniel Dunbar
06dfe8e9c5 Support: Add llvm::AreStatisticsEnabled(). 
llvm-svn: 126558
 2011-02-26 23:17:12 +00:00
Cameron Zwarich
8731d0cc83 The signed version of our "magic number" computation for the integer approximation 
of a constant had a minor typo introduced when copying it from the book, which
caused it to favor negative approximations over positive approximations in many
cases. Positive approximations require fewer operations beyond the multiplication.

In the case of division by 3, we still generate code that is a single instruction
larger than GCC's code.

llvm-svn: 126097
 2011-02-21 00:22:02 +00:00
Devang Patel
4192802280 Provide tag strings for llvm specific tags. 
llvm-svn: 125986
 2011-02-18 23:06:29 +00:00
Chris Lattner
c37910ea28 improve support for OpenBSD, patch by Amit Kulkarni! 
llvm-svn: 125943
 2011-02-18 17:04:56 +00:00
Argyrios Kyrtzidis
4f3f9c7ba9 Check the errorcode. 
llvm-svn: 125804
 2011-02-18 00:47:07 +00:00
Nadav Rotem
7cc6d12ad0 Enhance constant folding of bitcast operations on vectors of floats. 
Add getAllOnesValue of FP numbers to Constants and APFloat.
Add more tests.

llvm-svn: 125776
 2011-02-17 21:22:27 +00:00
NAKAMURA Takumi
4c14a5cc2c Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 generally. 
No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32. In llvm side, i686 and x64 can be treated as similar way.

llvm-svn: 125747
 2011-02-17 12:24:17 +00:00
Argyrios Kyrtzidis
a61736ff90 Implement a function from PathV2 whose definition is missing. 
llvm-svn: 125574
 2011-02-15 17:51:19 +00:00
Zhanyong Wan
606bb1a2dc Adds llvm::sys::path::is_separator() to test whether a char is a path separator 
on the host OS.  Reviewed by dgregor.

llvm-svn: 125406
 2011-02-11 21:24:40 +00:00
Douglas Gregor
56b2ffdaba Rip out realpath() support. It's expensive, and often a bad idea, and 
I have another way to achieve the same goal.

llvm-svn: 125239
 2011-02-09 23:33:15 +00:00
Cameron Zwarich
f73f5ba21c Attempt to fix the build after r125228. 
llvm-svn: 125236
 2011-02-09 23:02:14 +00:00
Douglas Gregor
529329e859 Add llvm::sys::path::canonical(), which provides the canonicalized 
name of a path, after resolving symbolic links and eliminating excess
path elements such as "foo/../" and "./".

This routine still needs a Windows implementation, but I don't have a
Windows machine available. Help? Please?

llvm-svn: 125228
 2011-02-09 22:11:23 +00:00
NAKAMURA Takumi
189111808e lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in config.h.*. 
AC_CHECK_FUNCS seeks a symbol only in libs. We should check the declaration in string.h.

FIXME: I have never seen mingw(s) have strerror_s() (not _strerror_s()).
FIXME: Autoconf/CMake may seek strerror_s() with the definition MINGW_HAS_SECURE_API in future.
llvm-svn: 125172
 2011-02-09 04:18:48 +00:00
NAKAMURA Takumi
aeb4c0d8fb Windows/Windows.h: Redefine _WIN32_WINNT here. mingw-w64 tends to define it as 0x0502 in its headers. 
llvm-svn: 125171
 2011-02-09 04:18:30 +00:00
NAKAMURA Takumi
28242e8ff6 Windows/Program.inc: Eliminate the declaration of SetInformationJobObject(). It should be provided with _WIN32_WINNT>=0x0500. 
llvm-svn: 125170
 2011-02-09 04:18:21 +00:00
NAKAMURA Takumi
684ef5e7bd Windows/DynamicLibrary.inc: ELM_Callback fix for mingw-w64. 
llvm-svn: 125169
 2011-02-09 04:18:12 +00:00
Rafael Espindola
56e41f7f0b Don't open the file again in the gold plugin. To be able to do this, update 
MemoryBuffer::getOpenFile to not close the file descriptor.

llvm-svn: 125128
 2011-02-08 22:40:47 +00:00
Anders Carlsson
630125ab27 Fix a clang warning. 
llvm-svn: 124960
 2011-02-05 18:19:35 +00:00
NAKAMURA Takumi
03a541f5c4 Windows/DynamicLibrary.inc: Split explicit symbols into explicit_symbols.inc. 
config.h.* have conditions whether each symbol is defined or not.
Autoconf and CMake may check symbols in libgcc.a for JIT on Mingw.

llvm-svn: 124950
 2011-02-05 15:11:53 +00:00
NAKAMURA Takumi
3e600a29d3 Windows/Program.inc: Quote arguments when dubious characters (used by cmd.exe or MSYS shell) are included to invoke CreateProcess(). Thanks to Danil Malyshev. 
llvm-svn: 124945
 2011-02-05 08:53:12 +00:00
NAKAMURA Takumi
5a3ff5b5a0 Make Win32's header file name lower for cross build on case-sensitive filesystem. 
llvm-svn: 124864
 2011-02-04 12:53:04 +00:00
Daniel Dunbar
4fed88704d raw_fd_ostream: Add a SetUseAtomicWrites() method (uses writev). 
llvm-svn: 124771
 2011-02-03 03:32:32 +00:00
Duncan Sands
fdfdbd091d Remove NoVendor and NoOS, added in commit 123990, from Triple. While it 
may be useful to understand "none", this is not the place for it.  Tweak
the fix to Normalize while there: the fix added in 123990 works correctly,
but I like this way better.  Finally, now that Triple understands some
non-trivial environment values, teach the unittests about them.

llvm-svn: 124720
 2011-02-02 10:08:38 +00:00
Evan Cheng
d22a4a1fd6 Patches to build EFI with Clang/LLVM. By Carl Norum. 
llvm-svn: 124639
 2011-02-01 01:14:13 +00:00
Daniel Dunbar
72d523beab Support/CommandLine: Fix LookupNearestOption to also search extra option names. 
llvm-svn: 124124
 2011-01-24 17:27:17 +00:00
Ted Kremenek
3c4408ceb6 Null initialize a few variables flagged by 
clang's -Wuninitialized-experimental warning.
While these don't look like real bugs, clang's
-Wuninitialized-experimental analysis is stricter
than GCC's, and these fixes have the benefit
of being general nice cleanups.

llvm-svn: 124073
 2011-01-23 17:05:06 +00:00
Renato Golin
83758d5cd7 Clang was not parsing target triples involving EABI and was generating wrong IR (wrong PCS) and passing the wrong information down llc via the target-triple printed in IR. I've fixed this by adding the parsing of EABI into LLVM's Triple class and using it to choose the correct PCS in Clang's Tools. A Clang patch is on its way to use this infrastructure. 
llvm-svn: 123990
 2011-01-21 18:25:47 +00:00