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2013-04-18Relax this assert. It may not hold in all cases.Bill Wendling1-1/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179814 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-18Assert if we're trying to generate a null compact unwind entry.Bill Wendling1-4/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179809 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Add support for subsections to the ELF assembler. Fixes PR8717.Peter Collingbourne15-71/+169
Differential Revision: http://llvm-reviews.chandlerc.com/D598 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179725 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14Use object file specific section type for initial text sectionNico Rieck2-12/+3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179494 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-12[ms-inline asm] Add the implementation for the AOK_Delete kind, which was addedChad Rosier1-3/+5
in r179325. Test case coming shortly on the clang side. Part of rdar://13453209 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179383 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-11[ms-inline asm] Remove brackets from around a symbol reference in the targetChad Rosier1-10/+1
specific logic. This makes the code much less fragile. Test case coming on the clang side in a moment. rdar://13634327 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10MC: Support COFF image-relative MCSymbolRefsNico Rieck2-7/+5
Add support for the COFF relocation types IMAGE_REL_I386_DIR32NB and IMAGE_REL_AMD64_ADDR32NB for 32- and 64-bit respectively. These are similar to normal 4-byte relocations except that they do not include the base address of the image. Image-relative relocations are used for debug information (32-bit) and SEH unwind tables (64-bit). A new MCSymbolRef variant called 'VK_COFF_IMGREL32' is introduced to specify such relocations. For AT&T assembly, this variant can be accessed using the symbol suffix '@imgrel'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179240 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10No need to have this return a bool.Bill Wendling1-4/+4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179226 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10Track the compact unwind encoding for when we are unable to generate compact ↵Bill Wendling2-6/+11
unwind information. Compact unwind has an encoding for when we're not able to generate compact unwind and must generate an EH frame instead. Track that, but still emit that CU encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179220 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10Reapply r179115, but use parsePrimaryExpression a little more judiciously.Chad Rosier1-0/+5
Test cases that regressed due to r179115, plus a few more, were added in r179182. Original commit message below: [ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need to parse an identifier. Otherwise, parseExpression may parse multiple tokens, which makes it impossible to properly compute an immediate displacement. An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in the below example: __asm mov eax, [Symbol + ImmDisp] Part of rdar://13611297 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179187 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-10Use a scheme closer to that of GNU as when deciding the type of aPeter Collingbourne1-6/+34
symbol with multiple .type declarations. Differential Revision: http://llvm-reviews.chandlerc.com/D607 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179184 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09Remove unused method and default values.Rafael Espindola1-2/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179124 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09Revert r179115 as it looks to have killed the ASan tests.Chad Rosier1-5/+0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179120 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09[ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need toChad Rosier1-0/+5
parse an identifier. Otherwise, parseExpression may parse multiple tokens, which makes it impossible to properly compute an immediate displacement. An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in the below example: __asm mov eax, [Symbol + ImmDisp] The existing test cases exercise this patch. rdar://13611297 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179115 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09[ms-inline asm] Maintain a StringRef to reference a symbol in a parsed operand,Chad Rosier1-5/+8
rather than deriving the StringRef from the Start and End SMLocs. Using the Start and End SMLocs works fine for operands such as [Symbol], but not for operands such as [Symbol + ImmDisp]. All existing test cases that reference a variable exercise this patch. rdar://13602265 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179109 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08[ms-inline asm] Add support for ImmDisp [ Symbol ] memory operands.Chad Rosier1-11/+9
rdar://13521249 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179030 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Fix the fde encoding used by mips to match gas.Rafael Espindola1-4/+7
This finally fixes the encoding. The patch also * Removes eh-frame.ll. It was an unnecessary .ll to .o test that was checking the wrong value. * Merge fde-reloc.s and eh-frame.s into a single test, since the only difference was the run lines. * Don't blindly test the content of the entire .eh_frame section. It makes it hard to anyone actually fixing a bug and hitting a difference in a binary blob. Instead, use a CHECK for each field and document what is being checked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178615 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01Mips direct object exception handling regressionJack Carter1-3/+4
Revision 177141 caused a regression in all but mips64 little endian. That is because none of the other Mips targets had test cases checking the contents of the .eh_frame section. This patch fixes both the llvm code and adds an assembler test case to include the current 4 flavors. The test cases unfortunately rely on llvm-objdump. A preferable method would be to use a pretty printer output such as what readelf -wf <elf_file> would give. I also changed the name of the test case to correct a typo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30Change '@SECREL' suffix to GAS-compatible '@SECREL32'.Benjamin Kramer1-1/+1
'@SECREL' is what is used by the Microsoft assembler, but GNU as expects '@SECREL32'. With the patch, the MC-generated code works fine in combination with a recent GNU as (2.23.51.20120920 here). Patch by David Nadlinger! Differential Revision: http://llvm-reviews.chandlerc.com/D429 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178427 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Dead code.Chad Rosier1-2/+0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177451 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19[ms-inline asm] Move the immediate asm rewrite into the target specificChad Rosier1-5/+1
logic as a QOI cleanup. No functional change. Tests already in place. rdar://13456414 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177446 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19[ms-inline asm] Remove the brackets from X86Operand in the IR. These will beChad Rosier1-8/+19
added back in by X86AsmPrinter::printIntelMemReference() during codegen. Previously, this following example void t() { int i; __asm mov eax, [i] } would generate the below assembly mov eax, dword ptr [[eax]] which resulted in a fatal error when compiling. Test case coming on the clang side. rdar://13444264 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177440 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19[ms-inline asm] Move the size directive asm rewrite into the target specificChad Rosier1-12/+4
logic as a QOI cleanup. rdar://13445327 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177413 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18Change NULL to 0.Jakub Staszak1-5/+5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177342 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-15Fix the FDE encoding to be relative on ELF.Rafael Espindola1-6/+6
This is a very late complement to r130637 which fixed this on x86_64. Fixes pr15448. Since it looks like that every elf architecture uses this encoding when using cfi, make it the default for elf. Just exclude mips64el. It has a lovely .ll -> .o test (ef_frame.ll) that tests that nothing changes in the binary content of the .eh_frame produced by llc. Oblige it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177141 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and ↵Manman Ren3-9/+9
MCDwarfFilesCUMap git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176893 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-12Remove the assert()'s from the LLVMCreateDisasmCPU() library API and justKevin Enderby1-8/+16
return 0 to indicate failure to create the disassembler. A library routine should not assert and just let the caller handler the error. For example darwin's otool(1) will simply print an error if it ends up using a library that is not configured for a target it wants: % otool -tv ViewController.o ViewController.o: (__TEXT,__text) section can't create arm llvm disassembler This is much better than an abort which appears as a crash to the user or even the assert when using a Debug+Asserts built library: Assertion failed: (MAI && "Unable to create target asm info!"), function LLVMCreateDisasmCPU, file /Volumes/SandBox/llvm/lib/MC/MCDisassembler/Disassembler.cpp, line 47. radr://12539918 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176880 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09Commit the right files for r176762. Sigh.Nick Lewycky1-3/+3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176763 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-09We need a shndx if the number of sections breaks SHN_LORESERVE. This conditionNick Lewycky1-1/+1
for choosing to emit a shndx was simply testing the wrong variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176762 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Debug Info: store the files and directories for each compile unit.Manman Ren6-15/+21
We now emit a line table for each compile unit. To reduce the prologue size of each line table, the files and directories used by each compile unit are stored in std::map<unsigned, std::vector< > > instead of std::vector< >. The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each compile unit causes a huge increase of debug info. With this patch, each prologue will only emit the files required by the compile unit. rdar://problem/13342023 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176605 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26AsmParser: More generic support for integer type suffices.Jim Grosbach1-6/+9
For integer constants, allow 'L', 'UL' as well as 'ULL' and 'LL'. This provides better support for shared headers between .s and .c files that define bunches of constant values. rdar://9321056 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176118 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26Fix PR15359.Bill Schmidt1-0/+13
The PowerPC TLS relocation types were not previously added to the necessary list in MCELFStreamer::fixSymbolsInTLSFixups(). Now they are! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176094 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-25'Hexadecimal' has two 'a's and only one 'i'.Matt Beaumont-Gay1-1/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176031 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20MCParser: Update method names per coding guidelines.Jim Grosbach5-270/+270
s/AddDirectiveHandler/addDirectiveHandler/ s/ParseMSInlineAsm/parseMSInlineAsm/ s/ParseIdentifier/parseIdentifier/ s/ParseStringToEndOfStatement/parseStringToEndOfStatement/ s/ParseEscapedString/parseEscapedString/ s/EatToEndOfStatement/eatToEndOfStatement/ s/ParseExpression/parseExpression/ s/ParseParenExpression/parseParenExpression/ s/ParseAbsoluteExpression/parseAbsoluteExpression/ s/CheckForValidSection/checkForValidSection/ http://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175675 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20clear new map and initialize new variablePedro Artigas1-0/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175578 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19ELF symbol table field st_other support, Jack Carter4-3/+32
excluding visibility bits. Generic STO handling at the Target level. The st_other field of the ELF symbol table is one byte in size. The first 2 bytes are used for generic visibility and are currently handled by llvm. The other six bits are processor specific and need to be set at the target level. A couple of notes: The new static methods for accessing and setting the "other" flags in include/llvm/MC/MCELF.h match the style guide and not the other methods in the file. I don't like the inconsistency, but feel I should follow the prescribed lowerUpper() convention. STO_ value definitions are not specified in gnu land as consistently as the STT_ and STB_ fields. Probably because the latter were defined in a standards doc and the former defined partially in code. I have stuck with the full byte definition of the flags. Contributer: Zoran Jovanovic git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175561 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16MCParser: Reject .balign with non-pow2 alignments.Benjamin Kramer1-0/+4
GNU as rejects them and there are configure scripts in the wild that check if the assembler rejects ".align 3" to determine whether the alignment is in bytes or powers of two. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175360 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16Derive ELF section type from the name in some cases where GNU as doesJoerg Sonnenberger1-1/+10
so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175327 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Suppress a GCC -Wunused-variable warning in -Asserts buildsMatt Beaumont-Gay1-0/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175319 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15c[ms-inline asm] It's possible to have a SizeDirective rewrite and anChad Rosier1-1/+16
Input/Output rewrite to the same location. Make sure the SizeDirective rewrite is performed first. This also ensure the sort algorithm is stable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175317 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15If bundle alignment is enabled, do not add data to a fragment with instructionsDerek Schuff2-4/+7
With bundle alignment, instructions all get their own MCFragments (unless they are in a bundle-locked group). For instructions with fixups, this is an MCDataFragment. Emitting actual data (e.g. for .long) attempts to re-use MCDataFragments, which we don't want int this case since it leads to fragments which exceed the bundle size. So, don't reuse them in this case. Also adds a test and fixes some formatting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175316 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15AsmParser: Reformat the MS asm parser to reduce nesting.Benjamin Kramer1-85/+86
While there postpone register name printing after uniquing. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175292 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Make helpers static. Add missing include so LLVMInitializeObjCARCOpts gets C ↵Benjamin Kramer1-1/+1
linkage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175264 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Revert r15266. This fixes llvm.org/pr15266.Rafael Espindola1-40/+19
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175173 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13[ms-inline asm] Add a comment about the determinism of the rewrite sort.Chad Rosier1-0/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175082 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13[ms-inline-asm] Use an array_pod_sort, rather than a std:sort.Chad Rosier1-3/+10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175063 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13[ms-inline-asm] Make sure the AsmRewrite list is sorted in lexical order.Chad Rosier1-0/+5
rdar://13202662 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175021 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12[ms-inline-asm] Implement align directive (which is roughly equivalent to ↵Chad Rosier1-9/+43
.align). Also, allow _EMIT and __EMIT for the emit directive. We already do the same for TYPE, SIZE, and LENGTH. rdar://13200215 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175008 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12This patch just fixes up various llvm formattingJack Carter2-3/+4
violations such as tabs, blanks at eol and long lines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175007 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Add static cast to unsigned char whenever a character classification ↵Guy Benyei2-5/+8
function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
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