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* Introduce needsCleanup() for APFloat and APInt.Manuel Klimek2013-06-031-1/+1
| | | | | | | | | This is needed in clang so one can check if the object needs the destructor called after its memory was freed. This is useful when creating many APInt/APFloat objects with placement new, where the overhead of tracking the pointers for cleanup is significant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183100 91177308-0d34-0410-b5e6-96231b3b80d8
* APInt: Simplify code. No functionality change.Benjamin Kramer2013-06-011-36/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183073 91177308-0d34-0410-b5e6-96231b3b80d8
* APFloat: Use isDenormal instead of hand-rolled code to check for denormals.Benjamin Kramer2013-06-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183072 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for adding the contents of a StringRef to the MD5 hash.Eric Christopher2013-05-311-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183054 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more unsigned char -> uint8_t.Eric Christopher2013-05-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183053 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comment.Eric Christopher2013-05-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183052 91177308-0d34-0410-b5e6-96231b3b80d8
* Move "unsigned char" -> "uint8_t".Eric Christopher2013-05-311-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183051 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement IEEE-754R 2008 nextUp/nextDown functions in the guise of the ↵Michael Gottesman2013-05-301-20/+228
| | | | | | | | function APFloat::next(bool nextDown). rdar://13852078 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182945 91177308-0d34-0410-b5e6-96231b3b80d8
* [APInt] Implement tcDecrement as a counterpart to tcIncrement. This is for ↵Michael Gottesman2013-05-281-0/+14
| | | | | | | | use in APFloat IEEE-754R 2008 nextUp/nextDown function. rdar://13852078 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182801 91177308-0d34-0410-b5e6-96231b3b80d8
* ArrayRef-ize MD5 and clean up a few variable names.Eric Christopher2013-05-241-20/+32
| | | | | | | Add a stringize method to make dumping a bit easier, and add a testcase exercising a few different paths. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182692 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace Count{Leading,Trailing}Zeros_{32,64} with count{Leading,Trailing}Zeros.Michael J. Spencer2013-05-241-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182680 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the Copied parameter from MemoryObject::readBytes.Benjamin Kramer2013-05-243-21/+7
| | | | | | | | | | There was exactly one caller using this API right, the others were relying on specific behavior of the default implementation. Since it's too hard to use it right just remove it and standardize on the default behavior. Defines away PR16132. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182636 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Disassembled CFG reconstruction.Ahmed Bougacha2013-05-242-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch builds on some existing code to do CFG reconstruction from a disassembled binary: - MCModule represents the binary, and has a list of MCAtoms. - MCAtom represents either disassembled instructions (MCTextAtom), or contiguous data (MCDataAtom), and covers a specific range of addresses. - MCBasicBlock and MCFunction form the reconstructed CFG. An MCBB is backed by an MCTextAtom, and has the usual successors/predecessors. - MCObjectDisassembler creates a module from an ObjectFile using a disassembler. It first builds an atom for each section. It can also construct the CFG, and this splits the text atoms into basic blocks. MCModule and MCAtom were only sketched out; MCFunction and MCBB were implemented under the experimental "-cfg" llvm-objdump -macho option. This cleans them up for further use; llvm-objdump -d -cfg now generates graphviz files for each function found in the binary. In the future, MCObjectDisassembler may be the right place to do "intelligent" disassembly: for example, handling constant islands is just a matter of splitting the atom, using information that may be available in the ObjectFile. Also, better initial atom formation than just using sections is possible using symbols (and things like Mach-O's function_starts load command). This brings two minor regressions in llvm-objdump -macho -cfg: - The printing of a relocation's referenced symbol. - An annotation on loop BBs, i.e., which are their own successor. Relocation printing is replaced by the MCSymbolizer; the basic CFG annotation will be superseded by more related functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182628 91177308-0d34-0410-b5e6-96231b3b80d8
* Add cmake bits for md5.Eric Christopher2013-05-211-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182349 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an md5 library derived from a public domain implementation for dwarf4Eric Christopher2013-05-211-0/+266
| | | | | | type signature computation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182348 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove declaration of __clear_cache for __APPLE__. <rdar://problem/13924072>Bob Wilson2013-05-191-0/+3
| | | | | | | | | | | | | | | This fixes a bootstrapping problem with builds for Apple ARM targets. Clang had the wrong prototype for __clear_cache with ARM targets. Rafael fixed that in clang svn r181784 and r181810, but without those changes, we can't build this code for ARM because clang reports an error about the declaration in Memory.inc not matching the builtin declaration. Some of our buildbots need to use an older compiler that doesn't have the clang fix. Since __clear_cache is never used here when __APPLE__ is defined, I'm just conditionalizing the declaration to match that. I also moved the declaration of sys_icache_invalidate inside the conditional for __APPLE__ while I was at it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182223 91177308-0d34-0410-b5e6-96231b3b80d8
* Invalidate instruction cache when setting memory to be executable.Tim Northover2013-05-191-0/+3
| | | | | | | | | lli's remote MCJIT code calls setExecutable just prior to running code. In line with Darwin behaviour this seems to be the place to invalidate any caches needed so that relocations can take effect properly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182213 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix build on WindowsTimur Iskhodzhanov2013-05-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181873 91177308-0d34-0410-b5e6-96231b3b80d8
* Use only explicit bool conversion operatorsDavid Blaikie2013-05-152-2/+2
| | | | | | | | | | | | | | | | | | | | | | | BitVector/SmallBitVector::reference::operator bool remain implicit since they model more exactly a bool, rather than something else that can be boolean tested. The most common (non-buggy) case are where such objects are used as return expressions in bool-returning functions or as boolean function arguments. In those cases I've used (& added if necessary) a named function to provide the equivalent (or sometimes negative, depending on convenient wording) test. One behavior change (YAMLParser) was made, though no test case is included as I'm not sure how to reach that code path. Essentially any comparison of llvm::yaml::document_iterators would be invalid if neither iterator was at the end. This helped uncover a couple of bugs in Clang - test cases provided for those in a separate commit along with similar changes to `operator bool` instances in Clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181868 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix __clear_cache declaration.Rafael Espindola2013-05-141-1/+1
| | | | | | This fixes the build with gcc in gnu++98 and gnu++11 mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181811 91177308-0d34-0410-b5e6-96231b3b80d8
* Recognize sparc64 as an alias for sparcv9 triples.Jakob Stoklund Olesen2013-05-141-1/+1
| | | | | | Patch by Brad Smith! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181808 91177308-0d34-0410-b5e6-96231b3b80d8
* Declare __clear_cache.Rafael Espindola2013-05-141-0/+1
| | | | | | | | GCC declares __clear_cache in the gnu modes (-std=gnu++98, -std=gnu++11), but not in the strict modes (-std=c++98, -std=c++11). This patch declares it and therefore fixes the build when using one of the strict modes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181785 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug that APFloat::fusedMultiplyAdd() mistakenly evaluate "14.5f * ↵Shuxin Yang2013-05-131-2/+27
| | | | | | -14.5f + 225.0f" to 225.0f. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181715 91177308-0d34-0410-b5e6-96231b3b80d8
* Better output for long help strings for command-line options.Alexander Kornienko2013-05-101-8/+16
| | | | | | | | | | | | | | | | | | | | | Summary: This patch allows using \n inside long help strings for command-line options, so that all lines are equally indented. This is not a perfect solution, as we don't (and probably don't want to) know about terminal width, but it allows to format long help strings somehow readable without manually padding them with spaces. A motivating example is -help output from clang-format (source code in tools/clang-format/ClangFormat.cpp, see cl options offset, length, style, and dump-config). Reviewers: atrick, alexfh Reviewed By: alexfh CC: llvm-commits, rafael Differential Revision: http://llvm-reviews.chandlerc.com/D779 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181608 91177308-0d34-0410-b5e6-96231b3b80d8
* Add line tracking support to FormattedStream Daniel Malea2013-05-081-20/+25
| | | | | | | | | | - previously formatted_raw_ostream tracked columns, now it tracks lines too - used by (upcoming) DebugIR pass to know the line number to connect to each IR instruction git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181463 91177308-0d34-0410-b5e6-96231b3b80d8
* Implemented public interface for modifying registered (not positional or ↵Andrew Trick2013-05-061-0/+10
| | | | | | | | sink options) command line options at runtime. Patch by Dan Liew! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181254 91177308-0d34-0410-b5e6-96231b3b80d8
* Support command line option categories.Andrew Trick2013-05-061-20/+198
| | | | | | Patch by Dan Liew! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181253 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ArrayRef constructor from None, and do the cleanups that this ↵Dmitri Gribenko2013-05-051-1/+1
| | | | | | | | | constructor enables Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: use __clear_cache under GCCish environmentsTim Northover2013-05-041-1/+1
| | | | | | | | | AArch64 is going to need some kind of cache-invalidation in order to successfully JIT since it has a weak memory-model. This is provided by a __clear_cache builtin in libgcc, which acts very much like the 32-bit ARM equivalent (on platforms where it exists). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181129 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow host triple to be correctly overridden in CMake buildsTim Northover2013-05-041-1/+1
| | | | | | | | | | | The intended semantics mirror autoconf, where the user is able to specify a host triple, but if it's left to the build system then "config.guess" is invoked for the default. This also renames the LLVM_HOSTTRIPLE define to LLVM_HOST_TRIPLE to fit in with the style of the surrounding defines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181112 91177308-0d34-0410-b5e6-96231b3b80d8
* [SystemZ] Support System Z as host architectureUlrich Weigand2013-05-031-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The llvm::sys::AddSignalHandler function (as well as related routines) in lib/Support/Unix/Signals.inc currently registers a signal handler routine via "sigaction". When this handler is called due to a SIGSEGV, SIGILL or similar signal, it will show a stack backtrace, deactivate the handler, and then simply return to the operating system. The intent is that the OS will now retry execution at the same location as before, which ought to again trigger the same error condition and cause the same signal to be delivered again. Since the hander is now deactivated, the OS will take its default action (usually, terminate the program and possibly create a core dump). However, this method doesn't work reliably on System Z: With certain signals (namely SIGILL, SIGFPE, and SIGTRAP), the program counter stored by the kernel on the signal stack frame (which is the location where execution will resume) is not the instruction that triggered the fault, but then instruction *after it*. When the LLVM signal handler simply returns to the kernel, execution will then resume at *that* address, which will not trigger the problem again, but simply go on and execute potentially unrelated code leading to random errors afterwards. To fix this, the patch simply goes and re-raises the signal in question directly from the handler instead of returning from it. This is done only on System Z and only for those signals that have this particular problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181010 91177308-0d34-0410-b5e6-96231b3b80d8
* [SystemZ] Add llvm::Triple::systemzRichard Sandiford2013-05-031-0/+8
| | | | | | | | First step towards reinstating the SystemZ backend. Tests will be included in the main backend patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181007 91177308-0d34-0410-b5e6-96231b3b80d8
* X86: Add target description for btver2; make autodetection logic aware of AVX.Benjamin Kramer2013-05-031-3/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181005 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixes a buffer overrun where the allocated buffer wasn't large enough to ↵Aaron Ballman2013-05-011-1/+8
| | | | | | accommodate the closing quote escape rules in some instances. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180836 91177308-0d34-0410-b5e6-96231b3b80d8
* Inline variable into the #ifdef block where it's used.Benjamin Kramer2013-04-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180688 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo. Stupid me.Joerg Sonnenberger2013-04-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180686 91177308-0d34-0410-b5e6-96231b3b80d8
* Only use cxxabi.h's demangler, if it is actually available.Joerg Sonnenberger2013-04-271-2/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180684 91177308-0d34-0410-b5e6-96231b3b80d8
* Testing for _XCR_XFEATURE_ENABLED_MASK instead of a specific MSVC version ↵Aaron Ballman2013-04-231-1/+1
| | | | | | because some MSVC 2010 SP1 installations do not have the _xgetbv intrinsic. Patch thanks to Serge Pavlov! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180125 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixup for r180094: properly use MSan interface functionsAlexey Samsonov2013-04-231-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180103 91177308-0d34-0410-b5e6-96231b3b80d8
* Tell MSan that memory initialized by libz is validAlexey Samsonov2013-04-231-2/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180094 91177308-0d34-0410-b5e6-96231b3b80d8
* Add llvm_unreachable after fully covered switch to pacify GCCHans Wennborg2013-04-231-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180087 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more guards around zlib-dependent codeAlexey Samsonov2013-04-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180084 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic zlib support to LLVM. This would allow to use ↵Alexey Samsonov2013-04-232-0/+90
| | | | | | compression/uncompression in selected LLVM tools. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180083 91177308-0d34-0410-b5e6-96231b3b80d8
* [Support] Fix argv string escape bug on WindowsReid Kleckner2013-04-221-4/+42
| | | | | | | | | | | | | | | | Summary: This is http://llvm.org/PR15802. Backslashes preceding double quotes in arguments must be escaped. The interesting bit is that all other backslashes should *not* be escaped, because the un-escaping logic is only triggered by the presence of a double quote character. Reviewers: Bigcheese CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D705 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180035 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert windows line endings to linux/unix line endings.Craig Topper2013-04-221-13/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179995 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the host endianness check an integer constant expression.Rafael Espindola2013-04-152-3/+3
| | | | | | | | | | | | | | | I will remove the isBigEndianHost function once I update clang. The ifdef logic is designed to * not use configure/cmake to avoid breaking -arch i686 -arch ppc. * default to little endian * be as small as possible It looks like sys/endian.h is the preferred header on most modern BSD systems, but it is better to change this in a followup patch as machine/endian.h is available on FreeBSD, OpenBSD, NetBSD and OS X. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179527 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a function to check if an argument list is too long.Rafael Espindola2013-04-112-0/+40
| | | | | | | | | This will be used in clang to decide if it should create an @file or not. It will be tested on the clang side. Patch by Nathan Froyd. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179285 91177308-0d34-0410-b5e6-96231b3b80d8
* <rdar://problem/13551789> Fix a race in the LockFileManager.Douglas Gregor2013-04-051-5/+32
| | | | | | | | | It's possible for the lock file to disappear and the owning process to return before we're able to see the generated file. Spin for a little while to see if it shows up before failing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178909 91177308-0d34-0410-b5e6-96231b3b80d8
* <rdar://problem/13551789> Fix yet another race in unique_file.Douglas Gregor2013-04-051-3/+1
| | | | | | | | | | | If the directory that will contain the unique file doesn't exist when we tried to create the file, but another process creates it before we get a chance to try creating it, we would bail out rather than try to create the unique file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178908 91177308-0d34-0410-b5e6-96231b3b80d8
* [Support][FileSystem] Fix identify_magic for big endian ELF.Michael J. Spencer2013-04-051-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178905 91177308-0d34-0410-b5e6-96231b3b80d8
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