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60 Commits

Author SHA1 Message Date
Daniel Dunbar
5d8c7d0d36 MC: Add support for disabling "temporary label" behavior. Useful for debugging 
on Darwin.

llvm-svn: 128430
 2011-03-28 22:49:15 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks. 
llvm-svn: 121471
 2010-12-10 07:39:47 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy. 
llvm-svn: 121461
 2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
 2010-12-09 23:48:29 +00:00
Devang Patel
77a1457f1a It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries. 
llvm-svn: 120760
 2010-12-03 00:10:48 +00:00
Chris Lattner
bcbf37aeea tidy up 
llvm-svn: 120644
 2010-12-02 01:29:39 +00:00
Devang Patel
525de51e78 If tehre are not any line entry then do not try to emit .debug_line section. 
llvm-svn: 120637
 2010-12-02 01:17:51 +00:00
Rafael Espindola
16b64c646a Rename temporary symbols if they conflict with artificial symbols created 
by the assembler. This was blocking parsing any large .s produced by clang for
example.

Fixes PR8596.

llvm-svn: 120603
 2010-12-01 20:46:11 +00:00
Michael J. Spencer
b2cfb3b443 Fix Whitespace. 
llvm-svn: 120166
 2010-11-26 04:16:08 +00:00
Rafael Espindola
7c6bd9e0f9 Add a MCLineSectionOrder vector so that we produce the line tables in a 
deterministic order.

llvm-svn: 119795
 2010-11-19 07:41:23 +00:00
Rafael Espindola
00c5605efc Parse and remember discriminators in .loc line. I try to output them with 
another patch.
This lets us parse a bit more of the gcc 4.5 output.

llvm-svn: 118975
 2010-11-13 03:18:27 +00:00
Rafael Espindola
8555d32c9e Initial comdat implementation. 
llvm-svn: 118805
 2010-11-11 18:13:52 +00:00
Rafael Espindola
d05bf9ffe0 Use MCSectionELF in places we know we have an ELF section. 
llvm-svn: 118699
 2010-11-10 19:05:07 +00:00
Rafael Espindola
3c0f11a265 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

llvm-svn: 118651
 2010-11-09 23:42:07 +00:00
Rafael Espindola
a16ec0145e Revert previous patch. Missed a case. 
llvm-svn: 118645
 2010-11-09 22:54:38 +00:00
Rafael Espindola
5e39a6d951 Remove IsExplicit. It was always false. 
llvm-svn: 118639
 2010-11-09 22:37:44 +00:00
Kevin Enderby
01b93a4319 Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel! 
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
   named.  Since it is just a predicate and isn't actually changing any state.

2) Added a missing return in the comments for setCurrentDwarfLoc() in 
   include/llvm/MC/MCContext.h for fix formatting.

3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
   state.

4) Simplified the last test in isValidDwarfFileNumber() to just a one line
   boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.

llvm-svn: 115551
 2010-10-04 20:17:24 +00:00
Kevin Enderby
f3d8ed8368 Did my commit for the last patch for the .loc directory from the wrong place and 
missed a bunch of files.  Here the rest.  Sorry about that.

llvm-svn: 115173
 2010-09-30 17:16:09 +00:00
Kevin Enderby
cc1c9257f6 This is the second of three patches to implement support for the .loc directive 
and output the dwarf line number tables.  This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section.  These objects will be used for the final patch to 
build and emit the encoded dwarf line number tables.  Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.

llvm-svn: 112668
 2010-08-31 22:55:11 +00:00
Kevin Enderby
024b04ad93 First bit of support for the dwarf .loc directive. This patch updates the 
needed parsing for the .loc directive and saves the current info from that
into the context.  The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables.  The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.

llvm-svn: 111956
 2010-08-24 20:32:42 +00:00
Matt Fleming
68a31bf9c6 ELF entry size support. 
Some ELF sections contain fixed-sized entries. Provide a way to record
the entry size of a section.

llvm-svn: 111169
 2010-08-16 18:33:46 +00:00
Kevin Enderby
8303a64b0a Next bit of support for the dwarf .file directive. This patch takes the 
previously collected info from the .file directives and outputs the encoded
bytes for it.  For now this is only in the Mach-O streamer but at some point
will move to a more generic place.

llvm-svn: 110617
 2010-08-09 22:52:14 +00:00
Benjamin Kramer
bf4f7b3665 Remove unused variable. 
llvm-svn: 110551
 2010-08-08 19:54:10 +00:00
Benjamin Kramer
85d8649a9c Stop leaking std::strings in GetDwarfFile. 
llvm-svn: 109746
 2010-07-29 13:53:19 +00:00
Kevin Enderby
3f202e65e8 Added first bit of support for the dwarf .file directive. This patch collects 
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
 2010-07-28 20:55:35 +00:00
Kevin Enderby
aaad4f57f0 Added the darwin .secure_log_unique and .secure_log_reset directives. 
llvm-svn: 107077
 2010-06-28 21:45:58 +00:00
Kevin Enderby
14c986967b Added support in MC for Directional Local Labels. 
llvm-svn: 103989
 2010-05-17 23:08:19 +00:00
Chris Lattner
e72e3e9c12 add COFF support for COMDAT sections, patch by Nathan Jeffords! 
llvm-svn: 103304
 2010-05-07 21:49:09 +00:00
Chris Lattner
c1d0e3a79e switch MCSectionCOFF from a syntactic to semantic representation, 
patch by Peter Housel!

llvm-svn: 103267
 2010-05-07 17:17:41 +00:00
Chris Lattner
e154403f78 delete a forwarding function. 
llvm-svn: 100815
 2010-04-08 21:34:17 +00:00
Chris Lattner
1cf4bded13 move elf section uniquing to MCContext. Along the way 
merge XCore's section into MCSectionELF

llvm-svn: 100812
 2010-04-08 21:26:26 +00:00
Chris Lattner
0225dbbfee remove the TargetLoweringObjectFileMachO::getMachoSection 
api and update clients to use MCContext instead.

llvm-svn: 100808
 2010-04-08 20:40:11 +00:00
Chris Lattner
60ff59e5c1 move macho section uniquing from MCParser and TLOF to MCContext where 
the compiler and asmparser now unique to the same sections.  This fixes
rdar://7835021.

llvm-svn: 100807
 2010-04-08 20:30:37 +00:00
Chris Lattner
8e4cf6f425 Rip out the 'is temporary' nonsense from the MCContext interface to 
create symbols.  It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

llvm-svn: 99902
 2010-03-30 18:10:53 +00:00
Chris Lattner
962d3d700b fix GetOrCreateTemporarySymbol to require a name, clients 
should use CreateTempSymbol() if they don't care about the
name.

llvm-svn: 98712
 2010-03-17 05:41:18 +00:00
Chris Lattner
1b10191d18 fix a memory leak yjasskin pointed out: MCSymbol is bump pointer 
allocated and thus not freed.  This is cool except that it contains
and std::string so the string data didn't get freed.  In any case
there is no reason to redundantly store the string data in the 
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.

llvm-svn: 98536
 2010-03-15 06:15:35 +00:00
Chris Lattner
3eb55835b5 add a new CreateTempSymbol method, the use case for 
CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.

llvm-svn: 98486
 2010-03-14 08:23:30 +00:00
Chris Lattner
956582f876 make the mangler take an MCContext instead of an MAI. 
No functionality change.

llvm-svn: 98363
 2010-03-12 18:44:54 +00:00
Chris Lattner
debc026df2 change MCContext to always have an MCAsmInfo. 
llvm-svn: 98293
 2010-03-11 22:53:35 +00:00
Chris Lattner
554f323da8 eliminate MCContext::CreateSymbol and CreateTemporarySymbol. 
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.

llvm-svn: 98118
 2010-03-10 01:29:27 +00:00
Dan Gohman
835086ef52 Fix various doxygen warnings. 
llvm-svn: 96779
 2010-02-22 04:10:52 +00:00
Daniel Dunbar
4daaf9d3f4 Pass StringRef by value. 
llvm-svn: 86251
 2009-11-06 10:58:06 +00:00
Chris Lattner
df848440d1 add a twine version of MCContext::GetOrCreateSymbol. 
llvm-svn: 84561
 2009-10-19 22:49:00 +00:00
Daniel Dunbar
6b7edc035b MC: Move assembler variable values from MCContext to MCSymbol. 
llvm-svn: 84229
 2009-10-16 01:33:57 +00:00
Daniel Dunbar
c5165c4258 MC: Switch MCContext value table to storing MCExprs. 
llvm-svn: 84228
 2009-10-16 01:33:11 +00:00
Daniel Dunbar
fb42aebc4f llvm-mc: Add some doxyment markers. 
llvm-svn: 80568
 2009-08-31 08:07:08 +00:00
Daniel Dunbar
1f70368155 llvm-mc/Mach-O: Don't put assembler temporary labels in the symbol table. 
- I moved section creation back into AsmParser. I think policy decisions like
   this should be pushed higher, not lower, when possible (in addition the
   assembler has flags which change this behavior, for example).

llvm-svn: 80162
 2009-08-26 22:13:22 +00:00
Daniel Dunbar
168f849552 llvm-mc: Change MCContext value table to take const MCSymbol*s. 
llvm-svn: 80079
 2009-08-26 09:16:57 +00:00
Chris Lattner
04f74d3510 sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF implementations. 
MCContext no longer maintains a string -> section map.

llvm-svn: 78874
 2009-08-13 00:37:15 +00:00
Chris Lattner
7ead5b498b add some comments: MCContext owns the MCSections, but it bump pointer allocates 
them, so it doesn't have to explicitly free them.

llvm-svn: 78870
 2009-08-13 00:21:53 +00:00