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2011-03-27Constant folding support for calls to umul.with.overflow(), basically ↵Frits van Bommel
identical to the smul.with.overflow() code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24revert r128199 until it can be made to work with Frontend/dependency-gen.c.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128218 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24Remove all uses of PATH_MAX and MAXPATHLEN from PathV2.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128199 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22We don't need a null terminator for the output file.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128098 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Properly initialize all fields in CrashReporterCleanupContext. This caused ↵Ted Kremenek
the buildbot failure earlier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128071 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Temporarily stop recovering resources in CrashRecoveryContext while I ↵Ted Kremenek
investigate further why this works on my machine and not on others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21Provide a means for CrashRecovery clients to determine if code is currently ↵Ted Kremenek
running while crash recovery cleanups are being processed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-20Avoid initializing posix_spawn_file_actions_t if not used.Benjamin Kramer
- glibc falls back to fork+exec if a file actions object is present. - On BSDs this saves a malloc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19Tweak CrashRecoveryContextCleanup to provide an easy method for clients to ↵Ted Kremenek
select between 'delete' and 'destructor' cleanups, and allow the destructor of CrashRecoveryContextCleanupRegister to be pseudo re-entrant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127929 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19Tweak CrashRecoveryContext::GetCurrent() to return quickly if ↵Ted Kremenek
'gCrsahRecoveryEnabled' is false. This avoids us needing to go to thread local storage for the performance sensitive case where we are compiling code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127928 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18setExecutable() should default to success if there's nothing custom for it.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127891 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18raw_ostream: [PR6745] Tweak formatting (double)%e for Windows hosts.NAKAMURA Takumi
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! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127872 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Initialize the only-used-with-PPC-double-double parts of the APFloat class. ThisBill Wendling
makes valgrind stop complaining about uninitialized variables being read when it accesses a bitfield (category) that shares its bits with these variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Check RequiresNullTerminator first, or we might read from an invalid address.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Augment CrashRecoveryContext to have registered "cleanup" objects that can ↵Ted Kremenek
be used to release resources during a crash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Use RequiresNullTerminator to create buffers without a null terminatorRafael Espindola
instead of copying. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Add an argument to APInt's magic udiv calculation to specify the number of ↵Benjamin Kramer
bits that are known zero in the divided number. This will come in handy soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16lib/Support/raw_ostream.cpp: On mingw, report_fatal_error() should not be ↵NAKAMURA Takumi
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127726 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Windows/PathV2.inc: [PR8520] Recognize "NUL" as special (character) file.NAKAMURA Takumi
FIXME: It is a temporal hack. We should detect as many "special file name" as possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127724 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Windows/Path.inc: [PR6270] PathV1::makeUnique(): Give arbitrary initial seed ↵NAKAMURA Takumi
for workaround. FIXME: We should use sys::fs::unique_file() in future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127723 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Add scei vendorJohn Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Don't compute the file size if we don't need to.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127426 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Add r127409 back now that the windows file was updated.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Try to fix the windows build.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127416 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Revert r127409 which broke all the Windows bots.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10Add support for MemoryBuffers that are not null terminated and addRafael Espindola
support for creating buffers that cover only a part of a file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08lib/Support/regcomp.c: Fix cygwin warning.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127241 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07Windows/PathV2.inc: Eliminate redundant condition. DWORD is unsigned.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04raw_ostream: while it is generally desirable to do larger writes, it can lead toBenjamin Kramer
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127026 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04raw_ostream: If writing a string that is larger than the buffer, write it ↵Benjamin Kramer
directly instead of doing many buffer-sized writes. This caps the number of write(2) calls per string to a maximum of 2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26Support: Add llvm::AreStatisticsEnabled().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21The signed version of our "magic number" computation for the integer ↵Cameron Zwarich
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Provide tag strings for llvm specific tags.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125986 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18improve support for OpenBSD, patch by Amit Kulkarni!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Check the errorcode.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125804 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Enhance constant folding of bitcast operations on vectors of floats.Nadav Rotem
Add getAllOnesValue of FP numbers to Constants and APFloat. Add more tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 generally.NAKAMURA Takumi
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Implement a function from PathV2 whose definition is missing.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125574 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Adds llvm::sys::path::is_separator() to test whether a char is a path separatorZhanyong Wan
on the host OS. Reviewed by dgregor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Rip out realpath() support. It's expensive, and often a bad idea, andDouglas Gregor
I have another way to achieve the same goal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125239 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Attempt to fix the build after r125228.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Add llvm::sys::path::canonical(), which provides the canonicalizedDouglas Gregor
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? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125228 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in ↵NAKAMURA Takumi
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Windows/Windows.h: Redefine _WIN32_WINNT here. mingw-w64 tends to define it ↵NAKAMURA Takumi
as 0x0502 in its headers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Windows/Program.inc: Eliminate the declaration of SetInformationJobObject(). ↵NAKAMURA Takumi
It should be provided with _WIN32_WINNT>=0x0500. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Windows/DynamicLibrary.inc: ELM_Callback fix for mingw-w64.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08Don't open the file again in the gold plugin. To be able to do this, updateRafael Espindola
MemoryBuffer::getOpenFile to not close the file descriptor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125128 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Fix a clang warning.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Windows/DynamicLibrary.inc: Split explicit symbols into explicit_symbols.inc.NAKAMURA Takumi
config.h.* have conditions whether each symbol is defined or not. Autoconf and CMake may check symbols in libgcc.a for JIT on Mingw. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124950 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Windows/Program.inc: Quote arguments when dubious characters (used by ↵NAKAMURA Takumi
cmd.exe or MSYS shell) are included to invoke CreateProcess(). Thanks to Danil Malyshev. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124945 91177308-0d34-0410-b5e6-96231b3b80d8
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