Commit Graph

1707 Commits

Author SHA1 Message Date
Rafael Espindola
f4f14f68f6 Add support for .cfi_register now that it is easy to extent the representation
to support it. Original patch with the parsing and plumbing by the PaX team and
Roman Divacky. I added the bits in MCDwarf.cpp and the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168565 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-25 15:14:49 +00:00
Benjamin Kramer
8a2ce5d329 libLTO: Add a utility method to initialize the disassemblers.
Necessary to give disassembler users (like darwin's otool) a possibility to
dlopen libLTO and still initialize the required LLVM bits. This used to go
through libMCDisassembler but that's a gross layering violation, the MC layer
can't pull in functions from the targets. Adding a function to libLTO is a bit
of a hack but not worse than exposing other disassembler bits from libLTO.

Fixes PR14362.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24 16:59:10 +00:00
Rafael Espindola
ff233c9e5c Change the representation of MCCFIInstruction.
We now store the Register and Offset directly. MachineLocation is gone (from
this file)!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24 04:33:48 +00:00
Rafael Espindola
7f74d2c2c1 Give each MCCFIInstruction its own opcode.
This untangles the switch cases of the old Move and RelMove opcodes a bit
and makes it clear how to add new instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168534 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24 03:10:54 +00:00
Rafael Espindola
529a01df02 Move a bit of duplicated code into a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168533 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24 02:18:49 +00:00
Rafael Espindola
28c9ea3c13 Refactor how MCCFIInstructions are created.
Give MCCFIInstruction a single, private constructor and add helper static
methods that create each type of cfi instruction. This is is preparation
for changing its representation. The representation with a pair
MachineLocations older than MC and has been abused quiet a bit to support
more cfi instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24 02:01:08 +00:00
Rafael Espindola
c8fec7e21f Implement .cfi_undefined. Based on a patch from PaX team, updated by
Roman Divacky. I just added the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168520 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-23 16:59:41 +00:00
Akira Hatanaka
e390434251 Add relocations used for mips big GOT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21 19:50:22 +00:00
Alexey Samsonov
15ab115df5 Emit relocations from .debug_aranges to .debug_info for asm files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167926 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14 09:55:38 +00:00
Anton Korobeynikov
12cfa11960 Add ARM TARGET2 relocation. The testcase will follow with actualy use-case.
Based on the patch by Logan Chien!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167633 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09 20:20:12 +00:00
Kevin Enderby
32c1a82a6b Fix for PR14264 cause by commit r167237 which did not take into account a
possible buffer change with a .macro directive.

rdar://12637628


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 21:55:41 +00:00
Kevin Enderby
938482f522 Add support for generating dwarf debugging info with assembly files
run through the 'C' preprocessor.  That is pick up the file name
and line numbers from the cpp hash file line comments for the
dwarf file and line numbers tables.

rdar://9275556



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01 17:31:35 +00:00
Chad Rosier
efcb3d9c1c [ms-inline asm] Add support for the TYPE operator.
Part of rdar://12576868


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 18:04:20 +00:00
Chad Rosier
6e43157b5d [ms-inline asm] Have the target AsmParser create the asmrewrite for the offsetof
operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166779 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 16:09:20 +00:00
Chad Rosier
6a020a7117 [ms-inline asm] Add support for creating AsmRewrites in the target specific
AsmParser logic.  To be used/tested in a subsequent commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166714 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25 20:41:34 +00:00
Adhemerval Zanella
aa71428378 Initial TOC support for PowerPC64 object creation
This patch adds initial PPC64 TOC MC object creation using the small mcmodel
(a single 64K TOC) adding the some TOC relocations (R_PPC64_TOC,
R_PPC64_TOC16, and R_PPC64_TOC16DS).

The addition of 'undefinedExplicitRelSym' hook on 'MCELFObjectTargetWriter'
is meant to avoid the creation of an unreferenced ".TOC." symbol (used in
the .odp creation) as well to set the R_PPC64_TOC relocation target as the
temporary ".TOC." symbol. On PPC64 ABI, the R_PPC64_TOC relocation should
not point to any symbol.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166677 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25 12:27:42 +00:00
Chad Rosier
c0a14b86f7 [ms-inline asm] Create a register operand, rather than a memory operand when we
see the offsetof operator.  Previously, we were matching something like MOVrm
in the front-end and later matching MOVrr in the back-end.  This change makes
things more consistent.  It also fixes cases where we can't match against a 
memory operand as the source (test cases coming).
Part of rdar://12470317



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24 17:22:29 +00:00
Kevin Enderby
e1d4a88134 Make branch heavy code for generating marked up disassembly simpler
and easier to read by adding a couple helper functions.  Suggestion by
Chandler Carruth and seconded by Meador Inge!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166515 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23 22:52:52 +00:00
Chad Rosier
5a719fcb5e [ms-inline asm] Add an implementation of the offset operator. This is a follow
on patch to r166433.
rdar://12470317

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166488 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23 17:43:43 +00:00
Eli Friedman
2128aaebd8 [ms-inline-asm] Implement _emit directive (which is roughly equivalent to .byte).
<rdar://problem/12470345>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166451 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 23:58:19 +00:00
Kevin Enderby
3ed0316f75 Add support for annotated disassembly output for X86 and arm.
Per the October 12, 2012 Proposal for annotated disassembly output sent out by
Jim Grosbach this set of changes implements this for X86 and arm.  The llvm-mc
tool now has a -mdis option to produced the marked up disassembly and a couple
of small example test cases have been added.

rdar://11764962


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 22:31:46 +00:00
Eli Friedman
8ee16c7b66 [ms-inline asm] Don't rewrite out parts of an inline-asm skipped by .if 0 and friends.
It's unnecessary and makes the generated assembly less faithful to the original source.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 20:50:25 +00:00
Benjamin Kramer
63a4c24616 Symbol hygiene: Make sure declarations and definitions match, make helper functions static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166376 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20 12:53:26 +00:00
Chad Rosier
4e472d2277 [ms-inline asm] Rename AsmOpRewrite to just AsmRewrite to be more generic. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166360 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20 01:02:45 +00:00
Chad Rosier
17feeec8d8 [ms-inline asm] If the state of the parser is ignore, then don't parse the
inline assembly.  Also make sure the remove the ignored statements from the IR.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166357 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20 00:47:08 +00:00
Chad Rosier
13090f70fc [ms-inline asm] Continue parsing even when we're in an ignore block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 23:15:00 +00:00
Chad Rosier
ab450e42f1 [ms-inline asm] Reset the opcode prior to parsing a statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 22:57:33 +00:00
Chad Rosier
96d58e64cf [ms-inline asm] Have the TargetParser callback to Sema to determine the size of
a memory operand.  Retain this information and then add the sizing directives
to the IR.  This allows the backend to do proper instruction selection.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166316 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 20:57:14 +00:00
Chad Rosier
9abfbdfc77 [ms-inline asm] Add the isParsingInlineAsm() function to the MCAsmTargetParser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 17:57:49 +00:00
Nick Lewycky
0d7d11d57f Pacify -Wnon-virtual-dtor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166270 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19 07:00:09 +00:00
Chad Rosier
3298959540 [ms-inline asm] Add a size argument to the LookupInlineAsmIdentifier() callback,
which will be used by the asm matcher in the near future.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166222 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18 20:27:15 +00:00
Chad Rosier
c8dd27e583 [ms-inline asm] Have the LookupInlineAsmIdentifier() callback function return a
*NamedDecl.  In turn, build the expressions after we're finished parsing the
asm.  This avoids a crasher if the lookup fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166212 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18 19:39:30 +00:00
Chad Rosier
b1f8c139c5 [ms-inline asm] Move most of the AsmParsing logic in clang back into the MC
layer.  Add the ParseMSInlineAsm() function, which is the new interface to 
clang.  Also expose the new MCAsmParserSemaCallback interface, which is used
by the back-end to do name lookup in Sema.  Finally, remove the now defunct
APIs introduced in r165946.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18 15:49:34 +00:00
Chad Rosier
c5ac87d067 [ms-inline asm] Add the helper function, isParseringInlineAsm(). To be used in a future commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16 20:16:20 +00:00
Michael Liao
b21d9aebba Check .rela instead of ELF64 for the compensation vaue resetting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16 19:49:51 +00:00
Chad Rosier
127f5edfd9 [ms-inline asm] If we parsed a statement and the opcode is valid, then it's an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165955 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15 19:08:18 +00:00
Chad Rosier
8f138d1121 [ms-inline asm] Add a few new APIs to the AsmParser class in support of MS-Style
inline assembly.  For the time being, these will be called directly by clang.
However, in the near future I expect these to be sunk back into the MC layer
and more basic APIs (e.g., getClobbers(), getConstraints(), etc.) will be called
by clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15 17:19:13 +00:00
Adhemerval Zanella
f35c62bf02 PowerPC: add EmitTCEntry class for TOC creation
This patch replaces the EmitRawText by a EmitTCEntry class (specialized for
each Streamer) in PowerPC64 TOC entry creation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165940 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15 15:43:14 +00:00
Chad Rosier
84125ca43c [ms-inline asm] Remove the MatchInstruction() function. Previously, this was
the interface between the front-end and the MC layer when parsing inline
assembly.  Unfortunately, this is too deep into the parsing stack. Specifically,
we're unable to handle target-independent assembly (i.e., assembly directives,
labels, etc.).  Note the MatchAndEmitInstruction() isn't the correct
abstraction either.  I'll be exposing target-independent hooks shortly, so this
is really just a cleanup.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165858 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13 00:26:04 +00:00
Chad Rosier
4f8d27338e Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165540 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09 20:15:02 +00:00
Eric Christopher
5b4461c0f1 Add names for the accelerator table sections so that they can
be emitted if they're wanted on elf platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-08 21:41:30 +00:00
Benjamin Kramer
e660fc15fe Hoist some grossly duplicated code from the COFF/ELF/MachO streamers into MCObjectStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04 13:12:43 +00:00
Craig Topper
266eff8539 Remove template from function that is only used with one type after r165092.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04 05:18:31 +00:00
Craig Topper
8e8f8724e1 Fix doxygen comment to match function name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165094 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-03 06:47:18 +00:00
Craig Topper
3138659646 Remove unused function that used to get itineraries from SubTargetFeatures. This is done from MCSubTargetInfo these days.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-03 06:26:11 +00:00
Andrew Kaylor
7bbd6e366b Support for generating ELF objects on Windows.
This adds 'elf' as a recognized target triple environment value and overrides the default generated object format on Windows platforms if that value is present.  This patch also enables MCJIT tests on Windows using the new environment value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165030 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-02 18:38:34 +00:00
Jim Grosbach
b4316028b3 MachO: direct-to-object attribute for data-in-code markers.
The target backend can support data-in-code load commands even when
the assembler doesn't, or vice-versa. Allow targets to opt-in for
direct-to-object.

PR13973.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164974 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-01 22:20:54 +00:00
Benjamin Kramer
f0070f2a97 Provide a shortcut for MCObjectStreamer when emitting fills.
Reduces runtime of i386-large-relocations.s by 10x in Release builds, even more
in Debug+Asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164945 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-01 15:14:14 +00:00
Sylvestre Ledru
94c22716d6 Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 10:14:43 +00:00
Sylvestre Ledru
7e2c793a2b Fix a typo 'iff' => 'if'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 09:59:43 +00:00