Commit Graph

443 Commits

Author SHA1 Message Date
Bill Wendling
69ad4a0004 --- Reverse-merging r82282 into '.':
U    lib/CodeGen/AsmPrinter/DwarfException.cpp
U    lib/CodeGen/AsmPrinter/DwarfException.h

--- Reverse-merging r82274 into '.':
U    lib/Target/TargetLoweringObjectFile.cpp
G    lib/CodeGen/AsmPrinter/DwarfException.cpp

These revisions were breaking everything.

llvm-svn: 82396
2009-09-20 09:13:15 +00:00
Bill Wendling
d402d7374a Here's fun! It turns out that these filter functions can be internal. If they're
internal, they shouldn't use the indirect pointer stuff. In the case of
throw_rethrow_test, it was marked as 'internal' and calculated its own offset to
its contents.

llvm-svn: 82354
2009-09-20 02:19:49 +00:00
Daniel Dunbar
9ae3c56c92 Fix indentation.
llvm-svn: 82333
2009-09-19 20:40:14 +00:00
Daniel Dunbar
39c0d90339 Strip trailing whitespace.
llvm-svn: 82332
2009-09-19 20:40:05 +00:00
Bill Wendling
5e030245e8 Factor out label difference creation.
llvm-svn: 82282
2009-09-18 21:37:56 +00:00
Bill Wendling
6ddbe2a6ad It's inefficient to have place the exception tables (which contain the LSDA)
into the __DATA section. At launch time, dyld has to update most of the section
to fix up the type info pointers. It's better to place it into the __TEXT
section and use pc-rel indirect pointer encodings. Similar to the personality
routine.

llvm-svn: 82274
2009-09-18 21:14:36 +00:00
Chris Lattner
f50872c2c4 add a new hook to allow targets to splat stuff at the end of the file.
Overriding doFinalization is pretty lame.

llvm-svn: 82268
2009-09-18 20:17:03 +00:00
Anton Korobeynikov
fb7ac49d96 Allow symbols to start from the digit if target requests it. This allows, e.g. pinning
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

llvm-svn: 82227
2009-09-18 16:57:42 +00:00
Chris Lattner
be5afd41e3 pass machinemoduleinfo down into getSymbolForDwarfGlobalReference,
currently unused.

llvm-svn: 82157
2009-09-17 18:49:52 +00:00
Chris Lattner
0a6f37ec43 remove the AsmPrinter::printMCInst hook hack now that
we have MCInstPrinter.

llvm-svn: 82006
2009-09-16 04:57:15 +00:00
Chris Lattner
7b52d90c9e Big change #1 for personality function references:
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding
fields from MAI: they aren't part of the asm syntax, they are
related to the structure of the object file.

To replace their functionality, add a new 
TLOF::getSymbolForDwarfGlobalReference method which asks targets
to decide how to reference a global from EH in a pc-relative way.

The default implementation just returns the symbol.  The default
darwin implementation references the symbol through an indirect
$non_lazy_ptr stub.  The bizarro x86-64 darwin specialization
handles the weird "foo@GOTPCREL+4" hack.

DwarfException.cpp now uses this to emit the reference to the
symbol in the right way, and this also eliminates another 
horrible hack from DwarfException.cpp:

-    if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL"))
-      O << "-" << MAI->getPCSymbol();

llvm-svn: 81991
2009-09-16 01:46:41 +00:00
Chris Lattner
7a4748ad3a inline AsmPrinter::getCurrentFunctionEHName into its only caller.
llvm-svn: 81970
2009-09-16 00:35:39 +00:00
Chris Lattner
7a07d794ee Eliminate AsmPrinter::EmitExternalGlobal, inlining its (now)
one implementation into its one caller.  This eliminates a totally
awesome and gratuitous hack where we casted a Function* to 
GlobalVariable*.

llvm-svn: 81967
2009-09-16 00:17:39 +00:00
Chris Lattner
f720dd9257 eliminate the horrid AsmPrinter::getGlobalLinkName method, inlining
it into all of its call sites and simplifying them.

llvm-svn: 81962
2009-09-16 00:08:41 +00:00
Chris Lattner
249d5fe8b9 remove some horrible MAI hooks which fortunately turn out to be always empty.
llvm-svn: 81946
2009-09-15 23:11:32 +00:00
Chris Lattner
c06870ad45 strength reduce a call to PrintRelDirective(true).
llvm-svn: 81942
2009-09-15 22:58:35 +00:00
Chris Lattner
ec805c1a5d PIC16 does allow colon after MBB labels, simplify EmitBasicBlockStart.
llvm-svn: 81755
2009-09-14 03:15:54 +00:00
Chris Lattner
4a33f01892 Change MCAsmStreamer to take an MCInstPrinter instead of a
full AsmPrinter, and change TargetRegistry to keep track
of registered MCInstPrinters.

llvm-mc is still linking in the entire
target foo to get the code emitter stuff, but this is an
important step in the right direction.

llvm-svn: 81754
2009-09-14 03:02:37 +00:00
Chris Lattner
1e264d7506 eliminate an extraneous use of TRI::getAsmName in a comment.
llvm-svn: 81705
2009-09-13 19:48:37 +00:00
Chris Lattner
cb05a87447 remove MAI::JumpTableSpecialLabelPrefix now that MAI
has real information about linker private linkage.

llvm-svn: 81695
2009-09-13 19:02:16 +00:00
Chris Lattner
cbcbedf254 replace printBasicBlockLabel with EmitBasicBlockStart,
now that printBasicBlockLabel is only used for starting
a MBB.  This allows elimination of a bunch of arguments.

llvm-svn: 81684
2009-09-13 18:25:37 +00:00
Chris Lattner
de1324146e convert some uses of printBasicBlockLabel to use GetMBBSymbol
instead.

llvm-svn: 81677
2009-09-13 17:14:04 +00:00
Chris Lattner
ff9d0f20fa devirtualize AsmPrinter::printBasicBlockLabel since it is never overridden.
Move GetMBBSymbol up to AsmPrinter and make printBasicBlockLabel use it so that
we only have one place that decides what to name bb labels.  Hopefully various
clients of printBasicBlockLabel can start using GetMBBSymbol instead.

llvm-svn: 81652
2009-09-12 23:02:08 +00:00
Caroline Tice
9584af22be Don't generate Dwarf line table entries for source line 0.
llvm-svn: 81542
2009-09-11 18:25:54 +00:00
Duncan Sands
6fb64b1b17 Fix PR4948 (and a leak): by not destroying the DwarfException
object, the timer it creates was not being deleted.  Since the
timer belonged to a static timer group, the timer group would
be destroyed on shutdown, and would notice and complain that
not all timers it contained were destroyed.

llvm-svn: 81533
2009-09-11 17:24:29 +00:00
Bill Wendling
68a3bafe53 Exit early if exception handling isn't supported.
llvm-svn: 81454
2009-09-10 18:28:06 +00:00
Bill Wendling
23f9e3a98e Comment and whitespace cleanups. No intentional functionality change.
llvm-svn: 81436
2009-09-10 06:50:01 +00:00
Bill Wendling
988ed7ed19 Revert part of my r81424 patch. I removed what looked like superfluous padding
from the exception tables. However, Duncan explained why it's a can of worms to
do it the GCC way. I went back to doing it the LLVM way and added Duncan's
explanation so that I don't do this again in the future.

llvm-svn: 81434
2009-09-10 06:27:16 +00:00
Bill Wendling
4ee473352a Don't hardcode the TType format size. In fact, rework the code so that it's more
like what GCC outputs. The mysterious code to insert padding wasn't in GCC at
all. I modified the TType base offset code to calculate the offset like GCC
does, though.

llvm-svn: 81424
2009-09-10 02:07:37 +00:00
Bill Wendling
11a9ab2879 Remove the "#if 0" that Noone loved. It wasn't really necessary, because the
code within it was the same inside and out. There's still a problem of the
TypeInfoSize should be the size of the TType format encoding (at least that's
what GCC thinks it should be).

llvm-svn: 81417
2009-09-10 01:12:47 +00:00
Bill Wendling
0ec5ddeecf Pull check for SJLJ EH into a boolean and use that.
llvm-svn: 81409
2009-09-10 00:17:04 +00:00
Bill Wendling
bf36b07bff Use the SizeOfEncodedValue function instead of magic variables for the
sizeof(DW_EH_PE_udata4).

llvm-svn: 81408
2009-09-10 00:13:16 +00:00
Bill Wendling
e55fe46dec Add helpful comment.
llvm-svn: 81406
2009-09-10 00:04:48 +00:00
Bill Wendling
ef6636d4b1 Believe it or not, this is a simplification. :-)
Basically, this patch is working towards removing the hard-coded values that are
output for the CIE. In particular, the CIE augmentation and the CIE augmentation
size. Both of these should be calculated. In the process, I was able to make a
bunch of code simpler.

The encodings for the personality, LSDA, and FDE in the CIE are still not
correct. They should be generated either from target-specific callbacks (blech!)
or grokked from first-principles.

llvm-svn: 81404
2009-09-09 23:56:55 +00:00
Chris Lattner
b9aca1a178 remove DebugLoc from MCInst and eliminate "Comment printing" from
the MCInst path of the asmprinter.  Instead, pull comment printing
out of the autogenerated asmprinter into each target that uses the
autogenerated asmprinter.  This causes code duplication into each
target, but in a way that will be easier to clean up later when more
asmprinter stuff is commonized into the base AsmPrinter class.

This also fixes an xcore strangeness where it inserted two tabs
before every instruction.

llvm-svn: 81396
2009-09-09 23:14:36 +00:00
Bill Wendling
626d5a2539 Use the EOL that takes the encoding and translates it into DWARF-English.
llvm-svn: 81382
2009-09-09 21:26:19 +00:00
Bill Wendling
61f199a83c Early exit from function.
llvm-svn: 81381
2009-09-09 21:08:12 +00:00
Bill Wendling
de0ad2660f Small amount of code clean-up: Don't use ".size()" when not necessary.
llvm-svn: 81380
2009-09-09 21:06:24 +00:00
Devang Patel
c174e064b2 Ignore malformed global variable debug info.
llvm-svn: 81055
2009-09-04 23:59:07 +00:00
Jim Grosbach
d0f70494f5 reduce size of SmallString to something more reasonable
llvm-svn: 80710
2009-09-01 18:55:08 +00:00
Jim Grosbach
38fc5b0277 Use raw_ostream instead of sstream
llvm-svn: 80704
2009-09-01 18:49:12 +00:00
Jim Grosbach
7c2ffde625 revert inadvertant change from previous commit
llvm-svn: 80689
2009-09-01 17:19:13 +00:00
Jim Grosbach
ecd541affd Simply LSDA lable emission to use a direct special-case output instead of
EmitLabel()

llvm-svn: 80677
2009-09-01 16:43:35 +00:00
Jim Grosbach
9a220088ac Clean up LSDA name generation and use for SJLJ exception handling. This
makes an eggregious hack somewhat more palatable. Bringing the LSDA forward
and making it a GV available for reference would be even better, but is
beyond the scope of what I'm looking to solve at this point.

Objective C++ code could generate function names that broke the previous
scheme. This fixes that.

llvm-svn: 80649
2009-09-01 01:57:56 +00:00
Devang Patel
fb8892d0e1 Subprogram is a scope. Derive DISubprogram from DIScope.
llvm-svn: 80637
2009-08-31 22:47:13 +00:00
Devang Patel
4a89fae1fe Rename DIBlock as DILexicalBlock.
llvm-svn: 80633
2009-08-31 22:00:15 +00:00
Caroline Tice
e49e2d352c Add flag to mark structs for Apple Block "byref" variables; also add code to
modify the type and location debug information for these variables to match the
programmer's expectations.

llvm-svn: 80625
2009-08-31 21:19:37 +00:00
Devang Patel
29f14e754f Simplify isDerivedType() and other predicate interface.
llvm-svn: 80602
2009-08-31 18:49:10 +00:00
Bill Wendling
f1610b9af1 Output a hex value, because all of the others are hex.
llvm-svn: 80601
2009-08-31 18:26:48 +00:00
Duncan Sands
66fce0befb Revert commit 80428. It completely broke exception
handling on x86-32 linux.

llvm-svn: 80592
2009-08-31 16:45:16 +00:00