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* Remove system_error.h.Rafael Espindola2014-06-12
| | | | | | | This is a minimal change to remove the header. I will remove the occurrences of "using std::error_code" in a followup patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210803 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a Constant version of stripPointerCasts.Rafael Espindola2014-06-04
| | | | | | Thanks to rnk for the suggestion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210205 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow alias to point to an arbitrary ConstantExpr.Rafael Espindola2014-06-03
| | | | | | | | | | | | | | | | | | | | | This patch changes GlobalAlias to point to an arbitrary ConstantExpr and it is up to MC (or the system assembler) to decide if that expression is valid or not. This reduces our ability to diagnose invalid uses and how early we can spot them, but it also lets us do things like @test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32), i32 ptrtoint (i32* @bar to i32)) to i32*) An important implication of this patch is that the notion of aliased global doesn't exist any more. The alias has to encode the information needed to access it in its metadata (linkage, visibility, type, etc). Another consequence to notice is that getSection has to return a "const char *". It could return a NullTerminatedStringRef if there was such a thing, but when that was proposed the decision was to just uses "const char*" for that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210062 91177308-0d34-0410-b5e6-96231b3b80d8
* Updates in IntelJITEventListener.cpp - by Arch Robison.Elena Demikhovsky2014-06-01
| | | | | | | | This patch updates IntelJITEventListener.cpp to account for revision 206654, which removed some methods from DILineInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209989 91177308-0d34-0410-b5e6-96231b3b80d8
* ExecutionEngine: avoid NDEBUG in headersAlp Toker2014-05-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209981 91177308-0d34-0410-b5e6-96231b3b80d8
* Use error_code() instead of error_code::succes()Rafael Espindola2014-05-31
| | | | | | | There is no std::error_code::success, so this removes much of the noise in transitioning to std::error_code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209952 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64/ARM64: move ARM64 into AArch64's placeTim Northover2014-05-24
| | | | | | | | | | | | | | | This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Remove relocation bounds check introduced in r208375 (MachO only).Lang Hames2014-05-23
| | | | | | | | | | | | | | | | | | | | | We do all of our address arithmetic in 64-bit, and operations involving logically negative 32-bit offsets (actually represented as unsigned 64 bit ints) often overflow into higher bits. The overflow check could be preserved by casting to uint32 at the callsite for applyRelocationValue, but this would eliminate the value of the check. The right way to handle overflow in relocations is to make relocation processing target specific, and compute the values for RelocationEntry objects in the appropriate types (32-bit for 32-bit targets, 64-bit for 64-bit targets). This is coming as part of the cleanup I'm working on. This fixes another i386 regression test. <rdar://problem/16889891> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209536 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Teach RuntimeDyldMachO how to handle scattered VANILLA relocs onLang Hames2014-05-22
| | | | | | | | | | | | | | | | | | | | | | i386. This fixes two more MCJIT regression tests on i386: ExecutionEngine/MCJIT/2003-05-06-LivenessClobber.ll ExecutionEngine/MCJIT/2013-04-04-RelocAddend.ll The implementation of processScatteredVANILLA is tasteless (*ba-dum-ching*), but I'm working on a substantial tidy-up of RuntimeDyldMachO that should improve things. This patch also fixes a type-o in RuntimeDyldMachO::processSECTDIFFRelocation, and teaches that method to skip over the PAIR reloc following the SECTDIFF. <rdar://problem/16961886> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209478 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Fix x86-64 MachO GOT relocation handling.Lang Hames2014-05-19
| | | | | | | | | | | | For GOT relocations the addend should modify the offset to the GOT entry, not the value of the entry itself. Teach RuntimeDyldMachO to do The Right Thing here. Fixes <rdar://problem/16961886>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209154 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete getAliasedGlobal.Rafael Espindola2014-05-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209040 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Fix handling of i386 PC-rel external relocations. This fixesLang Hames2014-05-13
| | | | | | | | | | several more i386 MCJIT regression test failures. <rdar://problem/16889891> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208735 91177308-0d34-0410-b5e6-96231b3b80d8
* [un]wrap extracted from lib/Target/Target[MachineC].cpp, ↵Artyom Skrobov2014-05-13
| | | | | | lib/ExecutionEngine/ExecutionEngineBindings.cpp into include/llvm/IR/DataLayout.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208680 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Add support for MachO __jump_table and __pointers sections, andLang Hames2014-05-12
| | | | | | | | | | | | | SECTDIFF relocations on 32-bit x86. This fixes several of the MCJIT regression test failures that show up on 32-bit builds. <rdar://problem/16886294> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208635 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Unify the RuntimeDyldMachO resolve.*Relocation method signaturesLang Hames2014-05-09
| | | | | | | | | | | around RelocationEntries, rather than passing the same information via loose arguments. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208375 91177308-0d34-0410-b5e6-96231b3b80d8
* Use range loop.Rafael Espindola2014-05-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208346 91177308-0d34-0410-b5e6-96231b3b80d8
* Back out r208257 while I investigate tester failures.Lang Hames2014-05-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208267 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Make RuntimeDyldImpl::resolveExternalSymbols preserve theLang Hames2014-05-07
| | | | | | | | | | | | | | | | | | | relocation entries it applies. Prior to this patch, RuntimeDyldImpl::resolveExternalSymbols discarded relocations for external symbols once they had been applied. This causes issues if the client calls MCJIT::finalizeLoadedModules more than once, and updates the location of any symbols in between (e.g. by calling MCJIT::mapSectionAddress). No test case yet: None of our in-tree memory managers support moving sections around. I'll have to hack up a dummy memory manager before I can write a unit test. Fixes <rdar://problem/16764378> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208257 91177308-0d34-0410-b5e6-96231b3b80d8
* [ARM64] Try and make the ELF MCJIT *slightly* less broken for ARM64.James Molloy2014-04-30
| | | | | | | | | A bunch of switch cases were missing, not just for ARM64 but also for AArch64_BE. I've fixed all those, but there's zero testing as ExecutionEngine tests are disabled when crosscompiling and I don't have a native platform available to test on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207626 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the build with MSVC 2013 by explicitly requesting llvm::make_uniqueReid Kleckner2014-04-29
| | | | | | | MSVC 2013 provides std::make_unique, which it finds with ADL when one of the parameters is std::unique_ptr, leading to an ambiguous overload. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207597 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix MSVC build broken by r207580David Blaikie2014-04-29
| | | | | | | | Seems MSVC wants to be able to codegen inline-definitions of virtual functions even in TUs that don't define the key function - and it's well within its rights to do so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207581 91177308-0d34-0410-b5e6-96231b3b80d8
* PR19553: Memory leak in RuntimeDyldELF::createObjectImageFromFileDavid Blaikie2014-04-29
| | | | | | | | | | | | | | | | This starts in MCJIT::getSymbolAddress where the unique_ptr<object::Binary> is release()d and (after a cast) passed to a single caller, MCJIT::addObjectFile. addObjectFile calls RuntimeDyld::loadObject. RuntimeDld::loadObject calls RuntimeDyldELF::createObjectFromFile And the pointer is never owned at this point. I say this point, because the alternative codepath, RuntimeDyldMachO::createObjectFile certainly does take ownership, so this seemed like a good hint that this was a/the right place to take ownership. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207580 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++] Use 'nullptr'.Craig Topper2014-04-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207394 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++] Use 'nullptr'.Craig Topper2014-04-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207083 91177308-0d34-0410-b5e6-96231b3b80d8
* [Modules] Fix potential ODR violations by sinking the DEBUG_TYPEChandler Carruth2014-04-22
| | | | | | | definition below all the header #include lines. This updates most of the miscellaneous other lib/... directories. A few left though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206845 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[rtdyld,c++11] Range'ify symbol table walking."Jim Grosbach2014-04-21
| | | | | | | | | Tentative revert for http://lab.llvm.org:8011/builders/llvm-mips-linux/builds/8305. This reverts commit c2a58efff07294fca724f89500538f2ddbcd12ff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206773 91177308-0d34-0410-b5e6-96231b3b80d8
* [rtdyld,c++11] Range'ify symbol table walking.Jim Grosbach2014-04-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206769 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert getFileOffset to getOffset and move it to its only user.Rafael Espindola2014-04-21
| | | | | | | | | | | | | We normally don't drop functions from the C API's, but in this case I think we can: * The old implementation of getFileOffset was fairly broken * The introduction of LLVMGetSymbolFileOffset was itself a C api breaking change as it removed LLVMGetSymbolOffset. * It is an incredibly specialized use case. The only reason MCJIT needs it is because of its odd position of being a dynamic linker of .o files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206750 91177308-0d34-0410-b5e6-96231b3b80d8
* [ExecutionEngine] Allow JIT clients to enable/disable module verification.Lang Hames2014-04-18
| | | | | | | | | | | | | | Previously module verification was always enabled, with no way to turn it off. As of this commit, module verification is on by default in Debug builds, and off by default in release builds. The default behaviour can be overridden by calling setVerifyModules(bool) on the JIT instance (this works for both the old JIT, and MCJIT). <rdar://problem/16150008> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206561 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Finally, finish nuking the redundant code that led me hereChandler Carruth2014-04-15
| | | | | | | | | | | | | | | | by removing the MallocSlabAllocator entirely and just using MallocAllocator directly. This makes all off these allocators expose and utilize the same core interface. The only ugly part of this is that it exposes the fact that the JIT allocator has no real handling of alignment, any more than the malloc allocator does. =/ It would be nice to fix both of these to support alignments, and then to leverage that in the BumpPtrAllocator to do less over allocation in order to manually align pointers. But, that's another patch for another day. This patch has no functional impact, it just removes the somewhat meaningless wrapper around MallocAllocator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206267 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] More 'nullptr' conversion. In some cases just using a boolean check ↵Craig Topper2014-04-15
| | | | | | instead of comparing to nullptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206252 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace two calls to object::symbol_iterator::increment(), which hadKaelyn Takata2014-04-14
| | | | | | been removed in r200442. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206196 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Make the underlying allocator a template instead of anChandler Carruth2014-04-14
| | | | | | | | | | | | abstract interface. The only user of this functionality is the JIT memory manager and it is quite happy to have a custom type here. This removes a virtual function call and a lot of unnecessary abstraction from the common case where this is just a *very* thin vaneer around a call to malloc. Hopefully still no functionality changed here. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206149 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Switch the BumpPtrAllocator to use a vector of pointers toChandler Carruth2014-04-14
| | | | | | | | | | | | | | | | | | | | | | | slabs rather than embedding a singly linked list in the slabs themselves. This has a few advantages: - Better utilization of the slab's memory by not wasting 16-bytes at the front. - Simpler allocation strategy by not having a struct packed at the front. - Avoids paging every allocated slab in just to traverse them for deallocating or dumping stats. The latter is the really nice part. Folks have complained from time to time bitterly that tearing down a BumpPtrAllocator, even if it doesn't run any destructors, pages in all of the memory allocated. Now it won't. =] Also resolves a FIXME with the scaling of the slab sizes. The scaling now disregards specially sized slabs for allocations larger than the threshold. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206147 91177308-0d34-0410-b5e6-96231b3b80d8
* LLVMBuild.txt: Add missing dependencies.NAKAMURA Takumi2014-04-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205962 91177308-0d34-0410-b5e6-96231b3b80d8
* Changes in IntelJITEventListener - By Arch RobinsonElena Demikhovsky2014-04-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - take->release: LLVM has moved to C++11. MockWrapper became an instance of unique_ptr. - method symbol_iterator::increment disappeared recently, in this revision: r200442 | rafael | 2014-01-29 20:49:50 -0600 (Wed, 29 Jan 2014) | 9 lines Simplify the handling of iterators in ObjectFile. None of the object file formats reported error on iterator increment. In retrospect, that is not too surprising: no object format stores symbols or sections in a linked list or other structure that requires chasing pointers. As a consequence, all error checking can be done on begin() and end(). This reduces the text segment of bin/llvm-readobj in my machine from 521233 to 518526 bytes. My change mimics the change that the revision made to lib/DebugInfo/DWARFContext.cpp . - const_cast: Shut up a warning from gcc. I ran unittests/ExecutionEngine/JIT/Debug+Asserts/JITTests to make sure it worked. - Arch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205689 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove section_rel_empty. Just compare begin() and end() instead.Rafael Espindola2014-04-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205577 91177308-0d34-0410-b5e6-96231b3b80d8
* [Allocator] Lift the slab size and size threshold into templateChandler Carruth2014-03-30
| | | | | | | | | | parameters rather than runtime parameters. There is only one user of these parameters and they are compile time for that user. Making these compile time seems to better reflect their intended usage as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205143 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM64: initial backend importTim Northover2014-03-29
| | | | | | | | | | | | This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ARM big endian Target (armeb, thumbeb)Christian Pirker2014-03-28
| | | | | | | | Reviewed at http://llvm-reviews.chandlerc.com/D3095 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205007 91177308-0d34-0410-b5e6-96231b3b80d8
* [cleanup] Hoist the initialization and constants for slab sizes to theChandler Carruth2014-03-28
| | | | | | | | top of the default jit memory manager. This will allow them to be used as template parameters rather than runtime parameters in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204992 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent alias from pointing to weak aliases.Rafael Espindola2014-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds back r204781. Original message: Aliases are just another name for a position in a file. As such, the regular symbol resolutions are not applied. For example, given define void @my_func() { ret void } @my_alias = alias weak void ()* @my_func @my_alias2 = alias void ()* @my_alias We produce without this patch: .weak my_alias my_alias = my_func .globl my_alias2 my_alias2 = my_alias That is, in the resulting ELF file my_alias, my_func and my_alias are just 3 names pointing to offset 0 of .text. That is *not* the semantics of IR linking. For example, linking in a @my_alias = alias void ()* @other_func would require the strong my_alias to override the weak one and my_alias2 would end up pointing to other_func. There is no way to represent that with aliases being just another name, so the best solution seems to be to just disallow it, converting a miscompile into an error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204934 91177308-0d34-0410-b5e6-96231b3b80d8
* [MCJIT] Check if there have been errors during RuntimeDyld execution.Juergen Ributzka2014-03-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204837 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64_BE Elf support for MC-JIT runtime dynamic linkerChristian Pirker2014-03-26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204816 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Prevent alias from pointing to weak aliases."Rafael Espindola2014-03-26
| | | | | | | | | This reverts commit r204781. I will follow up to with msan folks to see what is what they were trying to do with aliases to weak aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204784 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent alias from pointing to weak aliases.Rafael Espindola2014-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Aliases are just another name for a position in a file. As such, the regular symbol resolutions are not applied. For example, given define void @my_func() { ret void } @my_alias = alias weak void ()* @my_func @my_alias2 = alias void ()* @my_alias We produce without this patch: .weak my_alias my_alias = my_func .globl my_alias2 my_alias2 = my_alias That is, in the resulting ELF file my_alias, my_func and my_alias are just 3 names pointing to offset 0 of .text. That is *not* the semantics of IR linking. For example, linking in a @my_alias = alias void ()* @other_func would require the strong my_alias to override the weak one and my_alias2 would end up pointing to other_func. There is no way to represent that with aliases being just another name, so the best solution seems to be to just disallow it, converting a miscompile into an error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204781 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Fix comment for previous commit (r204439)Juergen Ributzka2014-03-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204508 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] clang-format files.Juergen Ributzka2014-03-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204507 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Allow processRelocationRef to process more than one relocation ↵Juergen Ributzka2014-03-21
| | | | | | | | | | | | | entry at a time. Some targets require more than one relocation entry to perform a relocation. This change allows processRelocationRef to process more than one relocation entry at a time by passing the relocation iterator itself instead of just the relocation entry. Related to <rdar://problem/16199095> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204439 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an option to MCJIT to have it forward all sections to theLang Hames2014-03-20
| | | | | | | | | | | | | | | | | | | | | | | | RTDyldMemoryManager, regardless of whether it thinks they're "required for execution". Currently, RuntimeDyld only passes sections that are "required for execution" to the RTDyldMemoryManager, and takes "required for execution" to mean exactly "contains symbols or relocations". There are two problems with this: (1) It can drop sections with anonymous data that is referenced by code. (2) It leaves the JIT client no way to inspect interesting sections that aren't actually required to run the program (e.g dwarf sections). A test case is still in the works. Future work: We may want to replace this with a generic section filtering mechanism, but that will require more consideration. For now, this flag at least allows clients to volunteer to do the filtering themselves. Fixes <rdar://problem/15177691>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204398 91177308-0d34-0410-b5e6-96231b3b80d8
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