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2013-11-08Add some temporary diagnostics to GetCurrentDirectory to diagnose mac failuresJan Voung
Some users are reporting Mac assertion errors while linking: Assertion failed: (false && "Could not query current working directory."). Add a perror() call to see what errno is when this fails. BUG=none R=dschuff@chromium.org Review URL: https://codereview.chromium.org/66653003
2013-07-18Some more OS-specific calls were added that are not supported in theEli Bendersky
sandboxed build. Condition them properly on __native_client__.
2013-07-15Merge commit '7dfcb84fc16b3bf6b2379713b53090757f0a45f9'Eli Bendersky
Conflicts: docs/LangRef.rst include/llvm/CodeGen/CallingConvLower.h include/llvm/IRReader/IRReader.h include/llvm/Target/TargetMachine.h lib/CodeGen/CallingConvLower.cpp lib/IRReader/IRReader.cpp lib/IRReader/LLVMBuild.txt lib/IRReader/Makefile lib/LLVMBuild.txt lib/Makefile lib/Support/MemoryBuffer.cpp lib/Support/Unix/PathV2.inc lib/Target/ARM/ARMBaseInstrInfo.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/ARMInstrInfo.td lib/Target/ARM/ARMSubtarget.cpp lib/Target/ARM/ARMTargetMachine.cpp lib/Target/Mips/CMakeLists.txt lib/Target/Mips/MipsDelaySlotFiller.cpp lib/Target/Mips/MipsISelLowering.cpp lib/Target/Mips/MipsInstrInfo.td lib/Target/Mips/MipsSubtarget.cpp lib/Target/Mips/MipsSubtarget.h lib/Target/X86/X86FastISel.cpp lib/Target/X86/X86ISelDAGToDAG.cpp lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86InstrControl.td lib/Target/X86/X86InstrFormats.td lib/Transforms/IPO/ExtractGV.cpp lib/Transforms/InstCombine/InstCombineCompares.cpp lib/Transforms/Utils/SimplifyLibCalls.cpp test/CodeGen/X86/fast-isel-divrem.ll test/MC/ARM/data-in-code.ll tools/Makefile tools/llvm-extract/llvm-extract.cpp tools/llvm-link/CMakeLists.txt tools/opt/CMakeLists.txt tools/opt/LLVMBuild.txt tools/opt/Makefile tools/opt/opt.cpp
2013-05-04AArch64: use __clear_cache under GCCish environmentsTim Northover
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
2013-05-03[SystemZ] Support System Z as host architectureUlrich Weigand
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
2013-04-28Inline variable into the #ifdef block where it's used.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180688 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-27Fix typo. Stupid me.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180686 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-27Only use cxxabi.h's demangler, if it is actually available.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180684 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-11Add a function to check if an argument list is too long.Rafael Espindola
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
2013-04-05<rdar://problem/13551789> Fix yet another race in unique_file.Douglas Gregor
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
2013-03-26Add a new watchdog timer interface. The interface does not permit handling ↵Nick Lewycky
timeouts, so it's only really useful if you're going to crash anyways. Use it in the pretty stack trace printer to kill the compiler if we hang while printing the stack trace. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177962 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14Android uses cacheflush(long start, long end, long flags) for MIPS.Akira Hatanaka
Patch by Stephen Hines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177101 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14[Support] Fix lifetime of file descriptors when using MemoryBuffer.Michael J. Spencer
Clients of MemoryBuffer::getOpenFile expect it not to take ownership of the file descriptor passed in. So don't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176995 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-11Merge commit '279b9184c2ff4fea93b198a3519b8cb3a1d8d195'Eli Bendersky
Conflicts: include/llvm/CodeGen/LexicalScopes.h include/llvm/MC/MCAsmInfo.h lib/Linker/LinkArchives.cpp lib/Linker/LinkItems.cpp lib/MC/MCAsmInfo.cpp lib/MC/MCDwarf.cpp lib/Target/ARM/ARMInstrInfo.td lib/Target/ARM/ARMSubtarget.cpp lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp lib/Target/Mips/MipsAsmPrinter.cpp lib/Target/Mips/MipsDelaySlotFiller.cpp lib/Target/Mips/MipsISelDAGToDAG.cpp lib/Target/Mips/MipsSubtarget.cpp lib/Target/Mips/MipsSubtarget.h lib/Target/Mips/MipsTargetObjectFile.cpp lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp lib/Target/X86/X86FastISel.cpp lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86TargetMachine.cpp lib/Transforms/CMakeLists.txt lib/Transforms/LLVMBuild.txt lib/Transforms/Makefile test/MC/ARM/arm_instructions.s test/MC/X86/AlignedBundling/pad-align-to-bundle-end.s
2013-02-28[PathV2] In llvm::sys::fs::unique_file, make sure it doesn't fall into an ↵Argyrios Kyrtzidis
infinite loop by constantly trying to create the parent path. This can happen if the path is a relative filename and the current directory was removed. Thanks to Daniel D. for the hint in fixing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176226 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Rewrite comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175651 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Add comment in Memory.inc explaining r175646.Krzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175650 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20SIGQUIT is a "kill" signal, rather than an "int" signal, in this context.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175648 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20On PowerPC, the cache-flush instructions dcbf and icbi are treated asKrzysztof Parzyszek
loads. On FreeBSD, add PROT_READ page protection flag before flushing cache. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175646 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19Fix initialization-order bug in llvm::Support::TimeValue. TimeValue::now() ↵Alexey Samsonov
is explicitly called during module initialization of lib/Support/Process.cpp. It reads the field of global object PosixZeroTime, which is not guaranteed to be initialized at this point. Found by AddressSanitizer with -fsanitize=init-order option. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175509 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Workaround an MSan false positive.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175156 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04More MSan/ASan annotations.Evgeniy Stepanov
This change lets us bootstrap LLVM/Clang under ASan and MSan. It contains fixes for 2 issues: - X86JIT reads return address from stack, which MSan does not know is initialized. - bugpoint tests run binaries with RLIMIT_AS. This does not work with certain Sanitizers. We are no longer including config.h in Compiler.h with this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174306 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Merge commit 'a662a9862501fc86904e90054f7c1519101d9126'Derek Schuff
Conflicts: include/llvm/CodeGen/IntrinsicLowering.h include/llvm/MC/MCAssembler.h include/llvm/MC/MCObjectStreamer.h lib/LLVMBuild.txt lib/Linker/LinkArchives.cpp lib/MC/MCAssembler.cpp lib/MC/MCELFStreamer.cpp lib/MC/MCParser/AsmParser.cpp lib/MC/MCPureStreamer.cpp lib/MC/WinCOFFStreamer.cpp lib/Makefile lib/Support/Unix/Memory.inc lib/Support/Unix/Process.inc lib/Support/Unix/Program.inc lib/Target/ARM/ARM.h lib/Target/ARM/ARMFastISel.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/X86/CMakeLists.txt lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86TargetMachine.cpp lib/Target/X86/X86TargetObjectFile.cpp lib/Transforms/InstCombine/InstCombineCalls.cpp test/CodeGen/X86/fast-isel-x86-64.ll tools/llc/llc.cpp tools/lto/LTOModule.cpp utils/TableGen/EDEmitter.cpp
2013-01-28Fix gcc/printf/ISO C++ warningEdwin Vane
Remove the use of the 't' length modifier to avoid a gcc warning. Based on usage, 32 bits of precision is good enough for printing a stack offset for a stack trace. 't' length modifier isn't in C++03 but it *is* in C++11. Added a FIXME to reintroduce once LLVM makes the switch to C++11. Reviewer: gribozavr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173711 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Merge commit '1ad9253c9d34ccbce3e7e4ea5d87c266cbf93410'Derek Schuff
deplib features commented out due to removal upstream; will add back as a localmod Conflicts: include/llvm/ADT/Triple.h include/llvm/MC/MCAssembler.h include/llvm/Target/TargetFrameLowering.h lib/CodeGen/AsmPrinter/DwarfDebug.cpp lib/CodeGen/AsmPrinter/DwarfDebug.h lib/CodeGen/BranchFolding.cpp lib/LLVMBuild.txt lib/Linker/LinkArchives.cpp lib/MC/MCAssembler.cpp lib/MC/MCELFStreamer.cpp lib/Makefile lib/Target/ARM/ARMExpandPseudoInsts.cpp lib/Target/ARM/ARMFrameLowering.cpp lib/Target/ARM/ARMISelLowering.cpp lib/Target/ARM/ARMSubtarget.h lib/Target/ARM/ARMTargetObjectFile.cpp lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/Mips/MipsInstrInfo.td lib/Target/X86/X86CodeEmitter.cpp lib/Target/X86/X86Subtarget.h lib/VMCore/Module.cpp test/MC/MachO/ARM/nop-armv4-padding.s tools/Makefile tools/llc/llc.cpp tools/lto/LTOModule.cpp tools/lto/lto.cpp
2013-01-10Fix a race condition in llvm::sys::path::unique_file: when we end upDouglas Gregor
failing to create the unique file because the path doesn't exist, don't fail if someone else manages to create the path before we do. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172032 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Move the internal PrintStackTrace function that is used for ↵Argyrios Kyrtzidis
llvm::sys::PrintStackTraceOnErrorSignal(), into a new function llvm::sys::PrintStackTrace, so that it's available to clients for logging purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171989 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-05Eric thought that Darwin was right to use -1 consistently rather thanChandler Carruth
leaving this undefined, and despite the sentence in the standard that seems to require it, I'll cede the point and assume its a bug in the wording. Other parts of POSIX regularly allow for things to be -1 instead of undefined, this should too. Makes things more consistent too. This should have to real impact for folks though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171574 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-05Try to suppress the use of clock_gettime on Darwin which apparantlyChandler Carruth
defines _POSIX_CPUTIME but doesn't support the clock_* functions. I don't test the value of _POSIX_CPUTIME because the spec merely says that if it is defined, the CPU-specific timers are available, whereas it says that _POSIX_TIMERS must be defined and defined to a value greater than zero. However, this may not work, as the POSIX spec clearly states: "If the symbolic constant _POSIX_CPUTIME is defined, then the symbolic constant _POSIX_TIMERS shall also be defined by the implementation to have the value 200112L." If this doesn't work, I'll add more hacks for Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171565 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04Add time getters to the process interface for requesting the elapsedChandler Carruth
wall time, user time, and system time since a process started. For walltime, we currently use TimeValue's interface and a global initializer to compute a close approximation of total process runtime. For user time, this adds support for an somewhat more precise timing mechanism -- clock_gettime with the CLOCK_PROCESS_CPUTIME_ID clock selected. For system time, we have to do a full getrusage call to extract the system time from the OS. This is expensive but unavoidable. In passing, clean up the implementation of the old APIs and fix some latent bugs in the Windows code. This might have manifested on Windows ARM systems or other systems with strange 64-bit integer behavior. The old API for this both user time and system time simultaneously from a single getrusage call. While this results in fewer system calls, it also results in a lower precision user time and if only user time is desired, it introduces a higher overhead. It may be worthwhile to switch some of the pass timers to not track system time and directly track user and wall time. The old API also tracked walltime in a confusing way -- it just set it to the current walltime rather than providing any measure of wall time since the process started the way buth user and system time are tracked. The new API is more consistent here. The plan is to eventually implement these methods for a *child* process by using the wait3(2) system call to populate an rusage struct representing the whole subprocess execution. That way, after waiting on a child process its stats will become accurate and cheap to query. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Remove an unused method on Program.Chandler Carruth
I'm simplifying this interface as much as I can before merging it with the new process interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171334 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Remove an unused method on the Program class.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171332 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Go ahead and get rid of the old page size interface and convert all theChandler Carruth
users over to the new one. No sense maintaining this "compatibility" layer it seems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171331 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Flesh out a page size accessor in the new API.Chandler Carruth
Implement the old API in terms of the new one. This simplifies the implementation on Windows which can now re-use the self_process's once initialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171330 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Remove an unused function in the old Process interface.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171327 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Switch this code to a more idiomatic double using namespace directive.Chandler Carruth
Fix a truly odd namespace qualifier that was flat out wrong in the process. The fully qualified namespace would have been llvm::sys::TimeValue, llvm::TimeValue makes no sense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31Begin sketching out the process interface.Chandler Carruth
The coding style used here is not LLVM's style because this is modeled after a Boost interface and thus done in the style of a candidate C++ standard library interface. I'll probably end up proposing it as a standard C++ library if it proves to be reasonably portable and useful. This is just the most basic parts of the interface -- getting the process ID out of it. However, it helps sketch out some of the boiler plate such as the base class, derived class, shared code, and static factory function. It also introduces a unittest so that I can incrementally ensure this stuff works. However, I've not even compiled this code for Windows yet. I'll try to fix any Windows fallout from the bots, and if I can't fix it I'll revert and get someone on Windows to help out. There isn't a lot more that is mandatory, so soon I'll switch to just stubbing out the Windows side and get Michael Spencer to help with implementation as he can test it directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171289 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort includes for all of the .h files under the 'lib' tree. These wereChandler Carruth
missed in the first pass because the script didn't yet handle include guards. Note that the script is now able to handle all of these headers without manual edits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Switch LLVM_USE_RVALUE_REFERENCES to LLVM_HAS_RVALUE_REFERENCES.Chandler Carruth
Rationale: 1) This was the name in the comment block. ;] 2) It matches Clang's __has_feature naming convention. 3) It matches other compiler-feature-test conventions. Sorry for the noise. =] I've also switch the comment block to use a \brief tag and not duplicate the name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168996 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Merge commit '8d20b5f9ff609e70fae5c865931ab0f29e639d9c'Derek Schuff
Conflicts: lib/CodeGen/AsmPrinter/DwarfDebug.cpp lib/CodeGen/AsmPrinter/DwarfDebug.h lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp lib/Target/Mips/MipsISelDAGToDAG.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/Mips/MipsSubtarget.cpp lib/Target/Mips/MipsSubtarget.h lib/Target/X86/X86MCInstLower.cpp tools/Makefile tools/llc/llc.cpp
2012-11-15PathV2: Fix a possible infinite loop.Daniel Dunbar
- The code could infinite loop trying to create unique files, if the directory containing the unique file exists, but open() calls on non-existent files in the path return ENOENT. This is true on the /dev/fd filesystem, for example. - Will add a clang side test case for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Merge commit '3298959540ca744ec16b4c65db244534a929a862'Derek Schuff
Conflicts: lib/Target/X86/X86TargetMachine.h tools/llc/llc.cpp
2012-10-17Support: Don't remove special files on signals.Daniel Dunbar
- Similar to Path::eraseFromDisk(), we don't want LLVM to remove things like /dev/null, even if it has the permission. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-01Merge commit '72f0976c1b91c7ba50dce4d0ad0289dc14d37f81'Derek Schuff
Conflicts: lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/Mips/MipsISelLowering.cpp lib/Target/Mips/MipsSubtarget.cpp
2012-09-28Make backtraces work again with both the configure and cmake build.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164817 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26The assumption that /proc/self/exe always exists is incorrect.Sylvestre Ledru
For example, under a Linux chroot, /proc/ might not be mounted. Therefor, we test if this file exist. If it is the case, use it (the current behavior). Otherwise, we fall back to the detection used by *BSD. The issue has been reported initially on the Debian bug tracker: http://bugs.debian.org/674588 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164676 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25Merge commit 'bc4021f31eaa97ee52655828da3e3de14a39e4a6'Derek Schuff
Conflicts: lib/MC/MCAssembler.cpp lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp lib/Target/X86/X86ISelLowering.h
2012-09-21Add an --enable-backtraces option to configure to determineEric Christopher
whether or not we want to print out backtrace information. Useful for libraries that don't need backtrace information on a crash. rdar://11844710 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164426 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19Merge commit '020aba0c3b6092e353e133446cb6453f95f0d61b'Derek Schuff
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