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* R600: Code cleanup.Matt Arsenault2014-03-151-11/+12
| | | | | | | Use sign_extend_inreg and getZeroExtendInReg instead of using the bit operations they expand into. llvm-svn: 203988
* Debug info: Unique types before emitting them to DWARF, where applicable.Adrian Prantl2014-03-141-0/+3
| | | | llvm-svn: 203983
* Debug Info: Fix LTO type uniquing for C++ member declarationsAdrian Prantl2014-03-144-1/+53
| | | | | | | | | | | | | | | | based on the ODR. This adds an OdrMemberMap to DwarfDebug which is used to unique C++ member function declarations based on the unique identifier of their containing class and their mangled name. We can't use the usual DIRef mechanism here because DIScopes are indexed using their entire MDNode, including decl_file and decl_line, which need not be unique (see testcase). Prior to this change multiple redundant member function declarations would end up in the same uniqued DW_TAG_class_type. llvm-svn: 203982
* typoAdrian Prantl2014-03-141-1/+1
| | | | llvm-svn: 203980
* MC: don't create a backtrace for diagnostics.Jim Grosbach2014-03-141-1/+1
| | | | | | | | | | | For better or worse, this is currently the normal error reporting path when dealing with backend errors from inline assembly. It's not just internal compiler issues that come through here, so we shouldn't be creating a backtrace on this path. rdar://16329947 llvm-svn: 203979
* Re-format SampleProfile.cpp with clang-format. No functional changes.Diego Novillo2014-03-141-2/+2
| | | | llvm-svn: 203977
* Use DiagnosticInfo facility.Diego Novillo2014-03-142-14/+54
| | | | | | | | | | | | | | | | | | Summary: The sample profiler pass emits several error messages. Instead of just aborting the compiler with report_fatal_error, we can emit better messages using DiagnosticInfo. This adds a new sub-class of DiagnosticInfo to handle the sample profiler. Reviewers: chandlerc, qcolombet CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3086 llvm-svn: 203976
* Remove command line option for CU hashing. This is on by default now.Eric Christopher2014-03-141-10/+2
| | | | | | Fix up testcases and use of flag. llvm-svn: 203973
* If we see that we're emitting code for a function that doesn't haveEric Christopher2014-03-141-1/+3
| | | | | | | | any lexical scopes then go ahead and turn on DW_AT_ranges for the compile unit since we would be claiming to describe in the CU a range for which we don't have information in the CU otherwise. llvm-svn: 203969
* Remove the -generate-dwarf-cu-ranges flag.Eric Christopher2014-03-141-12/+6
| | | | | | | Rewrite a couple of testcases to cover areas that would be normally by turning it on into testcases that will follow the logic. llvm-svn: 203968
* MCContext: Remove redundant assignmentDavid Blaikie2014-03-141-2/+0
| | | | | | | The member variable is not initialized in the ctor so it's already empty. No need to empty it again. llvm-svn: 203963
* Correctly handle an ELF symbol defined with "a = b + expr".Rafael Espindola2014-03-142-37/+66
| | | | | | | | | We were marking the symbol as absolute instead of computing b's offset + the expression value. This fixes pr19126. llvm-svn: 203962
* DwarfDebug: Remove some needless recursion.David Blaikie2014-03-141-2/+4
| | | | llvm-svn: 203946
* x86: Add missing break to getCallPreservedMask()Duncan P. N. Exon Smith2014-03-141-0/+1
| | | | | | | | | | | | This change brings getCallPreservedMask()'s logic in line with getCalleeSavedRegs(). While this changes the control flow slightly, the change is not currently observable. is64Bit must be false to get to the accidental fallthrough, but the case that we fall into (coldcc) does nothing unless is64Bit is true. llvm-svn: 203943
* x86: NFC: Make getCallPreservedMask() more similar to getCalleeSavedRegs()Duncan P. N. Exon Smith2014-03-141-4/+6
| | | | | | | Changing order of checks in getCallPreservedMask() to match getCalleeSavedRegs() so that the logic is easier to compare. llvm-svn: 203939
* x86: getCalleeSavedRegs() would crash on 0 (so don't default to it)Duncan P. N. Exon Smith2014-03-142-1/+2
| | | | | | | The current logic assumes that MF is not 0. Assert that it isn't, and remove the default of 0 from the header. llvm-svn: 203934
* [C++11] Introduce SectionRef::relocations() to use range-based loopsAlexey Samsonov2014-03-143-23/+16
| | | | | | | | | | | | Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3077 llvm-svn: 203927
* [ppc64] Avoid copy relocs in named rodata sectionsUlrich Weigand2014-03-141-13/+9
| | | | | | | | | | | | | | Commit r181723 introduced code to avoid placing initialized variables needing relocations into the .rodata section, which avoid copy relocs that do not work as expected on ppc64 function references. The same treatment is also needed for *named* .rodata.XXX sections. This patch changes PPC64LinuxTargetObjectFile::SelectSectionForGlobal to modify "Kind" *before* calling the default SelectSectionForGlobal routine, instead of first calling the default routine and then just checking for the (main) .rodata section afterwards. llvm-svn: 203921
* [ASan] Fix https://code.google.com/p/address-sanitizer/issues/detail?id=274Alexander Potapenko2014-03-141-3/+9
| | | | | | | by ignoring globals from __TEXT,__cstring,cstring_literals during instrumenation. Add a regression test. llvm-svn: 203916
* Use ctor instead of initializer list to appease Windows buildbotsAlexey Samsonov2014-03-142-1/+2
| | | | llvm-svn: 203915
* Use temporary instead of a local variable hereAlexey Samsonov2014-03-141-2/+1
| | | | llvm-svn: 203914
* AddressSanitizer instrumentation for MOV and MOVAPS.Evgeniy Stepanov2014-03-144-3/+304
| | | | | | | | This is an initial version of *Sanitizer instrumentation of assembly code. Patch by Yuri Gorshenin. llvm-svn: 203908
* MergeFunctions, cmpType: fixed variable names from XXTy1 and XXTy2 to XXTyL ↵Stepan Dyatkovskiy2014-03-141-29/+29
| | | | | | and XXTyR. llvm-svn: 203907
* MergeFunctions, cmpType: Fixed comments wrapping.Stepan Dyatkovskiy2014-03-141-1/+2
| | | | llvm-svn: 203905
* Revert r203883 (which was more of a bandaid) and fix the real underlyingOwen Anderson2014-03-141-1/+1
| | | | | | | | issue in that the new MachineRegisterInfo bundle iterators didn't dereference to the START of the bundle, while the old skipBundle() method did. llvm-svn: 203890
* Fix issue with r203865. The old behaviour would get a MachineOperand then ↵Pete Cooper2014-03-141-1/+1
| | | | | | find the MI for the bundle the MI was in. The new behaviour was failing to get the parent bundle and instead just used the MI from the MachineOperand llvm-svn: 203883
* Use DW_AT_linkage_name when we're emitting DWARF4 or above.Eric Christopher2014-03-131-1/+2
| | | | llvm-svn: 203867
* Remove the linker_private and linker_private_weak linkages.Rafael Espindola2014-03-1312-42/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These linkages were introduced some time ago, but it was never very clear what exactly their semantics were or what they should be used for. Some investigation found these uses: * utf-16 strings in clang. * non-unnamed_addr strings produced by the sanitizers. It turns out they were just working around a more fundamental problem. For some sections a MachO linker needs a symbol in order to split the section into atoms, and llvm had no idea that was the case. I fixed that in r201700 and it is now safe to use the private linkage. When the object ends up in a section that requires symbols, llvm will use a 'l' prefix instead of a 'L' prefix and things just work. With that, these linkages were already dead, but there was a potential future user in the objc metadata information. I am still looking at CGObjcMac.cpp, but at this point I am convinced that linker_private and linker_private_weak are not what they need. The objc uses are currently split in * Regular symbols (no '\01' prefix). LLVM already directly provides whatever semantics they need. * Uses of a private name (start with "\01L" or "\01l") and private linkage. We can drop the "\01L" and "\01l" prefixes as soon as llvm agrees with clang on L being ok or not for a given section. I have two patches in code review for this. * Uses of private name and weak linkage. The last case is the one that one could think would fit one of these linkages. That is not the case. The semantics are * the linker will merge these symbol by *name*. * the linker will hide them in the final DSO. Given that the merging is done by name, any of the private (or internal) linkages would be a bad match. They allow llvm to rename the symbols, and that is really not what we want. From the llvm point of view, these objects should really be (linkonce|weak)(_odr)?. For now, just keeping the "\01l" prefix is probably the best for these symbols. If we one day want to have a more direct support in llvm, IMHO what we should add is not a linkage, it is just a hidden_symbol attribute. It would be applicable to multiple linkages. For example, on weak it would produce the current behavior we have for objc metadata. On internal, it would be equivalent to private (and we should then remove private). llvm-svn: 203866
* Phase 2 of the great MachineRegisterInfo cleanup. This time, we're changingOwen Anderson2014-03-1334-135/+142
| | | | | | | | | | operator* on the by-operand iterators to return a MachineOperand& rather than a MachineInstr&. At this point they almost behave like normal iterators! Again, this requires making some existing loops more verbose, but should pave the way for the big range-based for-loop cleanups in the future. llvm-svn: 203865
* Fix a bug in InstCombine where we would incorrectly attempt to construct aOwen Anderson2014-03-131-0/+7
| | | | | | | bitcast between pointers of two different address spaces if they happened to have the same pointer size. llvm-svn: 203862
* MCDwarf: Rename MCDwarfFileTable to MCDwarfLineTableDavid Blaikie2014-03-133-9/+10
| | | | | | | This type now represents all the data for the DWARF line table: directory names, file names, and the line table proper. llvm-svn: 203858
* MCDwarf: Extract the DWARF line table header handling into its own typeDavid Blaikie2014-03-131-3/+13
| | | | llvm-svn: 203856
* Make GDBJITRegistrar thread safe. Patch by Jim Kearyn, with cleanup byLang Hames2014-03-131-16/+10
| | | | | | | | Ivan Puzyrevskiy. Fixes PR15750. Thanks Jim and Ivan. llvm-svn: 203853
* MCDwarf: Sink file/directory creation down into MCDwarfFileTable form MCContextDavid Blaikie2014-03-132-50/+50
| | | | llvm-svn: 203836
* MCDwarf: Oh, and move the directory string over to std::string as wellDavid Blaikie2014-03-132-8/+4
| | | | | | (see r203831 for similar stuff) llvm-svn: 203833
* MCDwarf: Simplify MCDwarfFile to just use std::string instead of cunning use ↵David Blaikie2014-03-133-24/+18
| | | | | | | | | | | | | of MCContext's allocator. There aren't /that/ many files, and we are already using various maps and other standard containers that don't use MCContext's allocator to store these values, so this doesn't seem to be critical and simplifies the design (I'll be moving construction out of MCContext shortly so it'd be annoying to have to pass the allocator around to allocate these things... and we'll have non-MCContext users (debug_line.dwo) shortly) llvm-svn: 203831
* Fix for http://llvm.org/bugs/show_bug.cgi?id=18590Ekaterina Romanova2014-03-133-14/+27
| | | | | | | This patch fixes the bug in peephole optimization that folds a load which defines one vreg into the one and only use of that vreg. With debug info, a DBG_VALUE that referenced the vreg considered to be a use, preventing the optimization. The fix is to ignore DBG_VALUE's during the optimization, and undef a DBG_VALUE that references a vreg that gets removed. Patch by Trevor Smigiel! llvm-svn: 203829
* MCDwarf: Simply MCDwarfFile since it really is just a StringRef and unsigned.David Blaikie2014-03-133-15/+7
| | | | llvm-svn: 203827
* Use printable names to implement directional labels.Rafael Espindola2014-03-133-16/+22
| | | | | | | | | | | | | | This changes the implementation of local directional labels to use a dedicated map. With that it can then just use CreateTempSymbol, which is what the rest of MC uses. CreateTempSymbol doesn't do a great job at making sure the names are unique (or being efficient when the names are not needed), but that should probably be fixed in a followup patch. This fixes pr18928. llvm-svn: 203826
* Remove stale commentDavid Blaikie2014-03-131-4/+0
| | | | llvm-svn: 203823
* MCDwarf: Refactor line table handling into a single data structureDavid Blaikie2014-03-133-31/+25
| | | | | | | | | | | | | | | | | This replaces several "compile unit ID -> thing" mappings in favor of one mapping from CUID to the whole line table structure (files, directories, and lines). This is another step along the way to refactoring out reusable components of line table handling for use when generating debug_line.dwo for fission type units. Also, might be a good basis to fold some of this handling down into MCStreamers to avoid the special case of "One line table when doing asm printing, line table per CU otherwise" by building it into the different MCStreamer implementations. llvm-svn: 203821
* R600: LDS instructions shouldn't implicitly define OQAPTom Stellard2014-03-131-2/+0
| | | | | | | | | LDS instructions are pseudo instructions which model the OQAP defs and uses within a single instruction. This fixes a hang in the opencv MedianFilter tests. llvm-svn: 203818
* [ARM] Use symbolic register names in .cfi directives only with IAS (PR19110)Hans Wennborg2014-03-132-3/+11
| | | | | | | | | | This is a follow-up to r203635. Saleem pointed out that since symbolic register names are much easier to read, it would be good if we could turn them off only when we really need to because we're using an external assembler. Differential Revision: http://llvm-reviews.chandlerc.com/D3056 llvm-svn: 203806
* [C++11] Introduce ObjectFile::sections().Alexey Samsonov2014-03-134-55/+58
| | | | | | | | | | | | | | | | | | Summary: This adds ObjectFile::section_iterator_range, that allows to write range-based for-loops running over all sections of a given file. Several files from lib/ are converted to the new interface. Similar fixes should be applied to a variety of llvm-* tools. Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3069 llvm-svn: 203799
* CodeGenPrep: sink extends of illegal types into use block.Manuel Jacob2014-03-132-84/+49
| | | | | | | | | | | | | | | | | | | Summary: This helps the instruction selector to lower an i64 * i64 -> i128 multiplication into a single instruction on targets which support it. This is an update of D2973 which was reverted because of a bug reported as PR19084. Reviewers: t.p.northover, chapuni Reviewed By: t.p.northover CC: llvm-commits, alex, chapuni Differential Revision: http://llvm-reviews.chandlerc.com/D3021 llvm-svn: 203797
* [msan] Fix handling of byval arguments in VarArg calls.Evgeniy Stepanov2014-03-131-21/+34
| | | | llvm-svn: 203794
* AVX-512: masked load/store + intrinsics for them.Elena Demikhovsky2014-03-131-121/+108
| | | | llvm-svn: 203790
* First patch of patch series that improves MergeFunctions performance time ↵Stepan Dyatkovskiy2014-03-131-39/+94
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from O(N*N) to O(N*log(N)). The idea is to introduce total ordering among functions set. That allows to build binary tree and perform function look-up procedure in O(log(N)) time. This patch description: Introduced total ordering among Type instances. Actually it is improvement for existing isEquivalentType. 0. Coerce pointer of 0 address space to integer. 1. If left and right types are equal (the same Type* value), return 0 (means equal). 2. If types are of different kind (different type IDs). Return result of type IDs comparison, treating them as numbers. 3. If types are vectors or integers, return result of its pointers comparison (casted to numbers). 4. Check whether type ID belongs to the next group: * Void * Float * Double * X86_FP80 * FP128 * PPC_FP128 * Label * Metadata If so, return 0. 5. If left and right are pointers, return result of address space comparison (numbers comparison). 6. If types are complex. Then both LEFT and RIGHT will be expanded and their element types will be checked with the same way. If we get Res != 0 on some stage, return it. Otherwise return 0. 7. For all other cases put llvm_unreachable. llvm-svn: 203788
* [PM] Stop playing fast and loose with rebinding of references. HoweverChandler Carruth2014-03-131-4/+4
| | | | | | | | convenient it is to imagine a world where this works, that is not C++ as was pointed out in review. The standard even goes to some lengths to preclude any attempt at this, for better or worse. Maybe better. =] llvm-svn: 203775
* AArch64: error when both positional & named operands are used.Tim Northover2014-03-133-4/+7
| | | | | | | | | | Only one instruction pair needed changing: SMULH & UMULH. The previous code worked, but MC was doing extra work treating Ra as a valid operand (which then got completely overwritten in MCCodeEmitter). No behaviour change, so no tests. llvm-svn: 203772
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