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* Fix up a few formatting issues.Eric Christopher2014-06-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211307 91177308-0d34-0410-b5e6-96231b3b80d8
* MCNullStreamer: assign file IDs to resolve crashes and errorsAlp Toker2014-06-19
| | | | | | | | | | Use the MCStreamer base implementations for file ID tracking instead of overriding them as no-ops. Avoids assertions when streaming Dwarf debug info, and fixes ASM parsing of loc and file directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211282 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit DWARF info for all code section in an assembly fileOliver Stannard2014-06-19
| | | | | | | | | | Currently, when using llvm as an assembler, DWARF debug information is only generated for the .text section. This patch modifies this so that DWARF info is emitted for all executable sections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211273 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit DWARF3 call frame information when DWARF3+ debug info is requestedOliver Stannard2014-06-19
| | | | | | | | | | | | | | | | | | Currently, llvm always emits a DWARF CIE with a version of 1, even when emitting DWARF 3 or 4, which both support CIE version 3. This patch makes it emit the newer CIE version when we are emitting DWARF 3 or 4. This will not reduce compatibility, as we already emit other DWARF3/4 features, and is worth doing as the DWARF3 spec removed some ambiguities in the interpretation of call frame information. It also fixes a minor bug where the "return address" field of the CIE was encoded as a ULEB128, which is only valid when the CIE version is 3. There are no test changes for this, because (as far as I can tell) none of the platforms that we test have a return address register with a DWARF register number >127. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211272 91177308-0d34-0410-b5e6-96231b3b80d8
* Move -dwarf-version to an MC level command line option so it'sEric Christopher2014-06-19
| | | | | | | used by all of the MC level tools and codegen. Fix up all uses in the compiler to use this and set it on the context accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211257 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert some assert(0) to llvm_unreachable or fold an 'if' condition into ↵Craig Topper2014-06-19
| | | | | | the assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211254 91177308-0d34-0410-b5e6-96231b3b80d8
* MS asm: Properly handle quoted symbol namesDavid Majnemer2014-06-19
| | | | | | | | | | | | | We would get confused by '@' characters in symbol names, we would mistake the text following them for the variant kind. When an identifier a string, the variant kind will never show up inside of it. Instead, check to see if there is a variant following the string. This fixes PR19965. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211249 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: do not add comment string to the AsmToken in AsmLexer::LexLineCommentSaleem Abdulrasool2014-06-18
| | | | | | | | Fixes macros with varargs if the macro instantiation has a trailing comment. Patch by Janne Grunau! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211219 91177308-0d34-0410-b5e6-96231b3b80d8
* MCAsmParser: full support for gas' '.if{cond} expression' directivesSaleem Abdulrasool2014-06-18
| | | | | | Patch by Janne Grunau! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211218 91177308-0d34-0410-b5e6-96231b3b80d8
* [ARM] [MC] Refactor the constant pool classesWeiming Zhao2014-06-18
| | | | | | | | | | | | | ARMTargetStreamer implements ConstantPool and AssmeblerConstantPools to keep track of assembler-generated constant pools that are used for ldr-pseudo. When implementing ldr-pseudo for AArch64, these two classes can be reused. So this patch factors them out from ARM target to the general MC lib. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211198 91177308-0d34-0410-b5e6-96231b3b80d8
* Using llvm::sys::swapByteOrder() for the common case of byte-swapping a ↵Artyom Skrobov2014-06-14
| | | | | | value in place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210978 91177308-0d34-0410-b5e6-96231b3b80d8
* Renaming SwapByteOrder() to getSwappedBytes()Artyom Skrobov2014-06-14
| | | | | | | | The next commit will add swapByteOrder(), acting in-place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210973 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove 'using std::errro_code' from lib.Rafael Espindola2014-06-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210871 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use 'using std::error_code' in include/llvm.Rafael Espindola2014-06-12
| | | | | | This should make sure that most new uses use the std prefix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210835 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: add enumeration of WinEH data encodingSaleem Abdulrasool2014-06-11
| | | | | | | | | | | | | | | Most Windows platforms use auxiliary data for unwinding. This information is stored in the .pdata section. The encoding format for the data differs between architectures and Windows variants. Windows MIPS and Alpha use identical formats; Alpha64 is the same with different widths. Windows x86_64 and Itanium share the representation. All Windows CE entries are identical irrespective of the architecture. ARMv7 (Windows [NT] on ARM) has its own format. This enumeration will become the differentiator once the windows EH emission infrastructure is generalised, allowing us to emit the necessary unwinding information for Windows on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210634 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Patch by Ray Donnelly to print register names instead of numbers."Reid Kleckner2014-06-10
| | | | | | | | | | | | | This reverts commit r206683. The code was confusing SEH register numbers with DWARF register numbers. The test case it was committed with was obviously incorrect. The disassembler was roundtripping '.seh_pushreg %rsi' as '.seh_pushreg %rbp', and other exciting things. Noticed by Vadim Chugunov. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210574 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix gcc warning (enumeral and non-enumeral type in conditional expression)Patrik Hagglund2014-06-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210450 91177308-0d34-0410-b5e6-96231b3b80d8
* AsmMatchers: Use unique_ptr to manage ownership of MCParsedAsmOperandDavid Blaikie2014-06-08
| | | | | | | | | | | | I saw at least a memory leak or two from inspection (on probably untested error paths) and r206991, which was the original inspiration for this change. I ran this idea by Jim Grosbach a few weeks ago & he was OK with it. Since it's a basically mechanical patch that seemed sufficient - usual post-commit review, revert, etc, as needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210427 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: fix text section characteristics for WoASaleem Abdulrasool2014-06-08
| | | | | | | | | | link.exe requires that the text section has the IMAGE_SCN_MEM_16BIT flag set. Otherwise, it will treat the function as ARM. If this occurs, then jumps to the function will fail, switching from thumb to ARM mode execution. With this change, it is possible to link using the MSVC linker as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210415 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: make ELF .type handling more GNU AS compatibleSaleem Abdulrasool2014-06-08
| | | | | | | | | | | | | | GAS documents the .type directive as having an optional comma following the key symbol name when using the STT_<TYPE_IN_UPPER_CASE> form. However, it treats the comma as optional in all cases. This makes the IAS support both forms of inputs. Furthermore, the prefixed forms take either the upper case name or the lower case alias. The tests are split into two separate sets as the hash character serves as a comment character on x86, which is tested in the second set by using arm-elf which uses the at symbol as a comment character. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210407 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: fix ctor/dtor section for windows-itaniumSaleem Abdulrasool2014-06-08
| | | | | | | | This adjusts the section setup for the windows-itanium environment. This environment does not report to be a known windows msvc environment, even though it is (nearly) identical to the MSVC environment for C code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210406 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: whitespace, grouping for COFF section setupSaleem Abdulrasool2014-06-08
| | | | | | | | Add some whitespace, combine two sequential conditionals into a single one. Reformat some section definitions to maintain uniformity in the function. NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210405 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: prevent early DCE of empty sectionsSaleem Abdulrasool2014-06-06
| | | | | | | | | | | | | | | | Prevent the early elimination of sections in the object writer. There may be references to the section itself by other symbols, which may potentially not be possible to resolve. ML (Visual Studio's Macro Assembler) also seems to retain empty sections. The elimination of symbols and sections which are unused should really occur at the link phase. This will not cause any change in the resulting binary, simply in the generated object files. The adjustments to the other unit tests account for the fluctuating section index caused by the appearance of sections which were previously discarded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210373 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a few issues with comdat handling on COFF.Rafael Espindola2014-06-06
| | | | | | | | | | | | | | | | | | | | | * Section association cannot use just the section name as many sections can have the same name. With this patch, the comdat symbol in an assoc section is interpreted to mean a symbol in the associated section and the mapping is discovered from it. * Comdat symbols were not being set correctly. Instead we were getting whatever was output first for that section. A consequence is that associative sections now must use .section to set the association. Using .linkonce would not work since it is not possible to change a sections comdat symbol (it is used to decide if we should create a new section or reuse an existing one). This includes r210298, which was reverted because it was asserting on an associated section having the same comdat as the associated section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210367 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r210298 'Correctly set the comdat symbol on COFF' as it asserts on ↵Timur Iskhodzhanov2014-06-06
| | | | | | Windows git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210317 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly set the comdat symbol on COFF.Rafael Espindola2014-06-05
| | | | | | | | | | | | | | | | | | | | | We extended the .section syntax to allow multiple sections with the same name but different comdats, but currently we don't make sure that the output section has that comdat symbol. That happens to work with the code llc produces currently because it looks like .section secName, "dr", one_only, "COMDATSym" .globl COMDATSym COMDATSym: .... but that is not very friendly to anyone coding in assembly or even to llc once we get comdat support in the IR. This patch changes the coff object writer to make sure the comdat symbol is output just after the section symbol, as required by the coff spec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210298 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix MIPS exception personality encoding.Logan Chien2014-05-30
| | | | | | | | | | For MIPS, we have to encode the personality routine with an indirect pointer to absptr; otherwise, some link warning warning will be raised, and the program might crash in some early MIPS Android device. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209907 91177308-0d34-0410-b5e6-96231b3b80d8
* MachO: support N_INDR aliases in assembly files.Tim Northover2014-05-30
| | | | | | | | | This makes LLVM create N_INDR aliases (to be resolved by the linker) when appropriate. rdar://problem/15125513 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209894 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips][mips64r6] Add Relocations R_MIPS_PCHI16, R_MIPS_PCLO16 Zoran Jovanovic2014-05-27
| | | | | | | Differential Revision: http://reviews.llvm.org/D3860 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209659 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
* MC: initialise MCAsmParser variableSaleem Abdulrasool2014-05-22
| | | | | | | Properly initialise HadError to false during construction. Detected as use-of-uninitialised variable by MSan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209393 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: formalise some assertions into proper errorsSaleem Abdulrasool2014-05-22
| | | | | | | | | Now that clang can be used as an assembler via the IAS, invalid assembler inputs would cause the assertions to trigger. Although we cannot recover from the errors here, nor provide caret diagnostics, attempt to handle them slightly more gracefully by reporting a fatal error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209387 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "DebugInfo: Don't put fission type units in comdat sections."David Blaikie2014-05-21
| | | | | | | | | This reverts commit r208930, r208933, and r208975. It seems not all fission consumers are ready to handle this behavior. Reverting until tools are brought up to spec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209338 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: introduce ability to restrict recorded relocationsSaleem Abdulrasool2014-05-21
| | | | | | | | | Add support to allow a target specific COFF object writer to restrict the recorded resolutions in the emitted object files. This is motivated by the need in Windows on ARM, where an intermediate relocation needs to be prevented from being emitted in the object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209336 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: loosen an overzealous assertionSaleem Abdulrasool2014-05-21
| | | | | | | | Permit active macro expansions when terminating the assembler if there were errors during the expansion. This would only trigger on invalid input when built with assertions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209309 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: mark COFF .drectve section as REMOVESaleem Abdulrasool2014-05-21
| | | | | | | | | The .drectve section should be marked as IMAGE_SCN_LNK_REMOVE. This matches what the MSVC toolchain does and accurately reflects that this section should not be emitted into the final binary. This section is merely information for the linker, comprising of additional linker directives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209273 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the verbose asm option to be part of the options struct andEric Christopher2014-05-20
| | | | | | set appropriately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209258 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix hardcoded slash to native path seperator which was exposed from ↵Yaron Keren2014-05-16
| | | | | | | | | | llvm::sys::path. http://reviews.llvm.org/D3687 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208980 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Add DwarfTypesDWOSection also to MCCOFF.NAKAMURA Takumi2014-05-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208975 91177308-0d34-0410-b5e6-96231b3b80d8
* Move more MC options into the MCTargetOptions structure.Eric Christopher2014-05-15
| | | | | | No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208932 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Don't put fission type units in comdat sections.David Blaikie2014-05-15
| | | | | | | | | Since type units in the dwo file are handled by a debug aware tool, they don't need to leverage the ELF comdat grouping to implement deduplication. Avoid creating all the .group sections for these as a space optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208930 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typosAlp Toker2014-05-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208839 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the TargetMachine MC options to MCTargetOptions. No functionalEric Christopher2014-05-15
| | | | | | change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208832 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the split function use StringRef::split.Eric Christopher2014-05-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208723 91177308-0d34-0410-b5e6-96231b3b80d8
* Check explicitly for EHABI and just use the default settings.Joerg Sonnenberger2014-05-13
| | | | | | | Code depends on the assembler and linker to fix things up... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208715 91177308-0d34-0410-b5e6-96231b3b80d8
* Move EmitDwarfAdvanceLineAddr and EmitDwarfAdvanceFrameAddr to the obj streamer.Rafael Espindola2014-05-12
| | | | | | This lets us delete the MCAsmStreamer implementation. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208570 91177308-0d34-0410-b5e6-96231b3b80d8
* Pass a MCObjectStreamer instead of a MCStreamer when possible.Rafael Espindola2014-05-12
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208569 91177308-0d34-0410-b5e6-96231b3b80d8
* Pass a MCObjectStreamer instead of a MCStreamer when possible.Rafael Espindola2014-05-12
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208567 91177308-0d34-0410-b5e6-96231b3b80d8
* Move EH/Debug frame handling to the object streamer.Rafael Espindola2014-05-12
| | | | | | | Now that the asm streamer doesn't use it, the MCStreamer doesn't need to know about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208562 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove always true argument and unused field.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208561 91177308-0d34-0410-b5e6-96231b3b80d8
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