2b8fc31df9
The personality function on Darwin needs a global stub. We then refer to
...
that global stub instead of doing the ".set" thingy we were doing before.
llvm-svn: 41838
2007-09-11 08:27:17 +00:00
2c0a0fb725
Due to label merging, the last label for an invoke
...
may be the same as the first label for the following
invoke. Remove a micro-optimization which was wrong
in this case.
llvm-svn: 41720
2007-09-05 14:12:46 +00:00
3c1b7fc056
Fix PR1628. When exception handling is turned on,
...
labels are generated bracketing each call (not just
invokes). This is used to generate entries in
the exception table required by the C++ personality.
However it gets in the way of tail-merging. This
patch solves the problem by no longer placing labels
around ordinary calls. Instead we generate entries
in the exception table that cover every instruction
in the function that wasn't covered by an invoke
range (the range given by the labels around the invoke).
As an optimization, such entries are only generated for
parts of the function that contain a call, since for
the moment those are the only instructions that can
throw an exception [1]. As a happy consequence, we
now get a smaller exception table, since the same
region can cover many calls. While there, I also
implemented folding of invoke ranges - successive
ranges are merged when safe to do so. Finally, if
a selector contains only a cleanup, there's a special
shorthand for it - place a 0 in the call-site entry.
I implemented this while there. As a result, the
exception table output (excluding filters) is now
optimal - it cannot be made smaller [2]. The
problem with throw filters is that folding them
optimally is hard, and the benefit of folding them is
minimal.
[1] I tested that having trapping instructions (eg
divide by zero) in such a region doesn't cause trouble.
[2] It could be made smaller with the help of higher
layers, eg by having branch folding reorder basic blocks
ending in invokes with the same landing pad so they
follow each other. I don't know if this is worth doing.
llvm-svn: 41718
2007-09-05 11:27:52 +00:00
38ce90fd44
Emit proper "secrel" directive, where possible. This fixes invalid asm syntax of debug info on mingw32. Also, cleanup
...
some stuff.
llvm-svn: 41675
2007-09-02 22:07:21 +00:00
032d89828e
Add explicit keywords and remove spurious trailing semicolons.
...
llvm-svn: 41482
2007-08-27 14:50:10 +00:00
48597b4ff8
The personality function might need to be declared as:
...
.set Lset0,___gxx_personality_v0-.
.long Lset0
on some targets. Make it so!
llvm-svn: 41385
2007-08-25 00:51:55 +00:00
446282ae3d
Fix minor doxygen nits.
...
llvm-svn: 40854
2007-08-05 20:06:04 +00:00
64b64ae591
Minor cleanup:
...
- Split EH and debug infiormation
- Make DwarfWriter more verbose in some cases
llvm-svn: 40481
2007-07-25 00:06:28 +00:00
b6a8ae20c7
Fix some uses of dyn_cast to be uses of cast.
...
llvm-svn: 40443
2007-07-23 20:24:29 +00:00
0263dd1d7f
The type ids making up a filter are unsigned, and
...
should be output as unsigned values. Checked against
gcc.
llvm-svn: 39775
2007-07-12 13:51:39 +00:00
c5b1984f57
Indexes into the list of filter ids cannot be output
...
directly: they need to be turned into byte offsets
(often the same, but may not be if there are many
type infos).
llvm-svn: 37942
2007-07-06 12:46:24 +00:00
dc8fc1550e
Use more realistically sized vectors. Reserve capacity if we know in advance
...
how much will be used.
llvm-svn: 37515
2007-06-08 08:59:11 +00:00
29d1dc6f1a
Fold the exception actions table harder: if two typeid lists start the
...
same, only output one copy of the common part.
llvm-svn: 37470
2007-06-06 15:37:31 +00:00
c063f5f362
Integrate exception filter support and exception catch support. This
...
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch). What a deal! Patch blessed by Anton.
llvm-svn: 37398
2007-06-02 16:53:42 +00:00
3b327826db
Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439
...
llvm-svn: 37311
2007-05-23 11:08:31 +00:00
0ae7eb5e7c
Silence a warning.
...
llvm-svn: 37288
2007-05-22 18:13:40 +00:00
34e82a4508
Only emit one entry in the exception action table for each action, even if
...
it occurs for multiple landing pads.
llvm-svn: 37267
2007-05-21 18:50:28 +00:00
59ae77486c
Output exception call-sites in address order, as required by the unwinding
...
runtime.
llvm-svn: 37104
2007-05-16 12:12:23 +00:00
750e8c5d4d
The index into the actions table is a ULEB128 not a SLEB128.
...
llvm-svn: 37084
2007-05-15 13:54:14 +00:00
1ee0c8d563
Emit function debug frames in one atom. This will prevent us from generating incorrect assembler in case of both
...
debug information & exception information presented.
llvm-svn: 37019
2007-05-13 17:30:11 +00:00
bbaf55448b
Emit multiple common EH frames for multiple (including blank) personality
...
functions. This partly fixes PR1414: now we're restricted only to one
personality function per eh frame, not per module. Further work on
"multiple personalities" topic needs representative example.
llvm-svn: 37018
2007-05-13 15:42:26 +00:00
13da17843c
More DWARF-related things cleanup:
...
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.
llvm-svn: 37015
2007-05-12 22:36:25 +00:00
67286b1266
Perform correct actions numbers/sizes computation
...
llvm-svn: 36988
2007-05-11 08:47:35 +00:00
00d02442b0
Fix action No calculation in multiple-invoke-one-LP mode
...
llvm-svn: 36987
2007-05-11 08:23:57 +00:00
96142de3f0
Allow multiple invokes per landing pad. This (probably) fixes PR1410.
...
llvm-svn: 36977
2007-05-10 22:34:59 +00:00
b43fe52136
Later computations assume we are aligned at this point.
...
llvm-svn: 36975
2007-05-10 18:40:24 +00:00
ed5dad4306
TypeIds are indexed by j, not i
...
llvm-svn: 36974
2007-05-10 15:10:34 +00:00
00282a21a5
Use the personality function that was registered with MMI rather than
...
hardwiring in the C++ one.
llvm-svn: 36789
2007-05-05 20:27:00 +00:00
02528f5425
Spelling fix.
...
llvm-svn: 36781
2007-05-05 16:32:57 +00:00
4db0090339
Emit sections/directives in the proper order. This fixes PR1376. Also,
...
some small cleanup was made.
llvm-svn: 36780
2007-05-05 09:04:50 +00:00
b538f67b1a
Fix couple of bugs connected with eh info:
...
1. Correct output offsets on Linux
2. Fix "style" of personality function. It shouldn't be indirect.
llvm-svn: 36633
2007-05-01 22:23:12 +00:00
dd6ce6900e
Cleanup: make SetCounter an instance variable
...
llvm-svn: 35007
2007-03-07 08:25:02 +00:00
942fda027f
Fix DWARF debugging information on x86/Linux and (hopefully)
...
Mingw32/Cygwin targets. This fixes PR978
llvm-svn: 35000
2007-03-07 02:47:57 +00:00
82af5943d1
Emit eh filter info.
...
llvm-svn: 34805
2007-03-01 20:26:43 +00:00
c46bf3577d
Handle mix of personalities.
...
llvm-svn: 34752
2007-02-28 18:38:31 +00:00
66aa84d12f
Missing end of abbreviations - correction
...
llvm-svn: 34501
2007-02-22 18:48:52 +00:00
4e3d2b9acc
Missing end of abbreviations.
...
llvm-svn: 34500
2007-02-22 18:22:42 +00:00
09953e6482
Exception handling support.
...
llvm-svn: 34479
2007-02-21 22:48:45 +00:00
f970221c4d
Slip up
...
llvm-svn: 33758
2007-02-01 17:48:20 +00:00
894ceb1c6f
Emit labels as label_n and not as debug_n
...
llvm-svn: 33757
2007-02-01 17:46:10 +00:00
c3de9b4b14
Support for non-landing pad exception handling.
...
llvm-svn: 33755
2007-02-01 16:31:34 +00:00
ee23de6c36
Out of line function.
...
llvm-svn: 33641
2007-01-29 23:40:33 +00:00
3f9f250928
Only gather frame info if debug or eh.
...
llvm-svn: 33639
2007-01-29 23:20:22 +00:00
d1154860a4
Flag to control exception handling.
...
llvm-svn: 33628
2007-01-29 20:48:32 +00:00
18c3b5267d
Disable zero landing pads for now.
...
llvm-svn: 33625
2007-01-29 20:01:41 +00:00
b4a2f05d1c
Landing pad-less eh for PPC.
...
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
c56315c2b5
Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
...
for debugging and exception handling.
llvm-svn: 33550
2007-01-26 21:22:28 +00:00
f773e14547
Clarify some constants.
...
llvm-svn: 33536
2007-01-26 14:19:17 +00:00
ee132b5fce
1. Remove dwarf-verbose option (now asm-verbose.)
...
2. Clean up end of lines.
llvm-svn: 33499
2007-01-25 15:45:58 +00:00
1c055e8d14
Migrate print routines to asm to be shared by exception handling.
...
llvm-svn: 33498
2007-01-25 15:12:02 +00:00
f6c63fec92
Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves
...
by value so that clean up is less confusing (these vectors tend to be small.)
llvm-svn: 33488
2007-01-24 18:45:13 +00:00
f6487ec894
Use asm printer to emit alignment
...
llvm-svn: 33485
2007-01-24 13:12:32 +00:00
3106724a03
Need to handle static declarations properly.
...
llvm-svn: 33022
2007-01-08 22:15:18 +00:00
751314fab9
Silence warning.
...
llvm-svn: 32834
2007-01-03 13:36:40 +00:00
d7a090ffc4
Need to walk the derived chain of typedefs to get actual size.
...
llvm-svn: 32744
2006-12-22 20:03:42 +00:00
a77f14265b
Added an automatic cast to "std::ostream*" etc. from OStream. We then can
...
rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.
llvm-svn: 32636
2006-12-17 05:15:13 +00:00
f3baad3ee1
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
...
now cerr, cout, and NullStream resp.
llvm-svn: 32298
2006-12-07 01:30:32 +00:00
acbb456dde
Some addresssed should be 64-bit and some shouldn't.
...
llvm-svn: 32278
2006-12-06 17:43:18 +00:00
b5b14060a8
Change global descriptor names to provide name, full name and linkage name.
...
llvm-svn: 32036
2006-11-30 14:35:45 +00:00
aa2843ad4a
Temp fix to deal gdb issue.
...
llvm-svn: 32035
2006-11-30 11:09:42 +00:00
01b74b6f7b
Eliminate unnecessary scopes.
...
llvm-svn: 32020
2006-11-29 16:55:57 +00:00
5c3966aa68
Converted to using llvm streams instead of <iostream>s
...
llvm-svn: 31992
2006-11-29 00:39:47 +00:00
f1606b80f1
Allows debugging llc self hosted.
...
llvm-svn: 31594
2006-11-09 16:32:26 +00:00
97f89b11b3
Merging dwarf info to a single compile unit.
...
llvm-svn: 31593
2006-11-09 14:52:14 +00:00
6ea4fae838
1. Add a pass to fold debug label instructions so a debug info client can detect
...
empty ranges.
2. Reorg how MachineDebugInfo maintains changes to debug labels.
3. Have dwarf writer use debug label info to simplify scopes and source line
coorespondence.
4. Revert the merging of compile units until I can get the bugs ironed out.
llvm-svn: 31507
2006-11-07 19:33:46 +00:00
78c84a0328
Unbreak X86/ELF Debugging. Somehow this line got lost in Jim's cleanup.
...
llvm-svn: 31492
2006-11-07 06:36:36 +00:00
235aeef9e1
Tab interferes with uniqueness.
...
NOTE: There doesn't seem to be consistency for whether a leading tab
is present in a section heading.
llvm-svn: 31475
2006-11-06 16:23:59 +00:00
01c55a50b1
Live local variables are being dropped because the begin or end labels marking
...
their scope are being deleted. Workaround is to widen scope to full function.
llvm-svn: 31454
2006-11-04 10:48:07 +00:00
cb67d99001
Make CodeGen libs -pedantic clean.
...
llvm-svn: 31387
2006-11-02 23:56:21 +00:00
15d166ba8f
1. Hash not quite right for DIEValues.
...
2. Not going to use Usage (no significant benefit.)
llvm-svn: 31384
2006-11-02 21:48:18 +00:00
9ec8a7555b
Remove unused variable.
...
llvm-svn: 31382
2006-11-02 20:55:40 +00:00
de46e48420
For PR786:
...
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.
llvm-svn: 31380
2006-11-02 20:25:50 +00:00
936d546eca
General clean up of teh dwarf writer.
...
1. Most significant is the folding of debug information entries. This
reduced self hosted -g SelectionDAGISel.s from 120M to 13M and pretty
close to matching .o file sizes with gcc.
2. Debug information entry printing for debugging the dwarf code.
3. Bring all the code closer to llvm standards.
4. Misc. fixes and doc clean ups.
llvm-svn: 31379
2006-11-02 20:12:39 +00:00
aa4c0f9374
1. Clean up code due to changes in SwitchTo*Section(2)
...
2. Added partial debug support for mingw\cygwin targets (the same as
Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
for storing debug info by default, thus many (runtime) libraries has
this information included. These formats shouldn't be mixed in one binary
('stabs' & 'DWARF'), otherwise binutils tools will be confused.
llvm-svn: 31311
2006-10-31 08:31:24 +00:00
7eda51d4cf
Fix a problem introduced by a last-minute change (logic negation).
...
llvm-svn: 31302
2006-10-30 23:34:32 +00:00
b51b5c0b1f
Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4
...
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.
llvm-svn: 31299
2006-10-30 22:32:30 +00:00
ad2f5b7d18
Switch abbreviations to use the folding set.a.
...
llvm-svn: 31296
2006-10-30 15:59:54 +00:00
43c19124bb
Simplify DwarfWriter header.
...
llvm-svn: 31295
2006-10-30 13:35:07 +00:00
516cd40b5c
Tighter data structure for deleted debug labels.
...
llvm-svn: 31152
2006-10-24 11:50:43 +00:00
5e1a34032b
More complete solution to deleting blocks and debug info.
...
llvm-svn: 31129
2006-10-23 14:56:37 +00:00
145f6b3ec8
Do not leak all of the SourceLineInfo objects. Do not bother mallocing each
...
one separately.
llvm-svn: 31022
2006-10-17 22:06:46 +00:00
d24b913a61
Clean up interface to getGlobalLinkName.
...
llvm-svn: 31001
2006-10-17 17:17:24 +00:00
7126254a0e
Basic support for getGlobalLinkName.
...
llvm-svn: 30997
2006-10-17 13:41:07 +00:00
9db3a08864
Global name regression.
...
llvm-svn: 30982
2006-10-16 19:38:41 +00:00
ccee9baebe
Workaround for templates
...
llvm-svn: 30927
2006-10-13 13:02:19 +00:00
0d5a0eae57
More long term solution
...
llvm-svn: 30720
2006-10-04 10:40:15 +00:00
66b0b55816
Work around for some problems with templates.
...
llvm-svn: 30715
2006-10-04 01:43:13 +00:00
d30bba331f
Sort out mangled names for globals
...
llvm-svn: 30460
2006-09-18 14:47:26 +00:00
261779bb45
Make target asm info a property of the target machine.
...
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
a6211dcdad
Separate target specific asm properties from the asm printers.
...
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
5352d0cc4d
Corrections.
...
llvm-svn: 30021
2006-09-01 12:55:05 +00:00
2eebe8b05e
Handle callee saved registers in dwarf frame info (lead up to exception
...
handling.)
llvm-svn: 29954
2006-08-29 16:24:26 +00:00
f8bf1e6034
Allow for register numbers > 31.
...
llvm-svn: 29879
2006-08-25 19:39:52 +00:00
b6ac11e120
Adding C++ member support.
...
llvm-svn: 29799
2006-08-21 21:20:18 +00:00
194bef7ff4
Fixed a bug handling void function types.
...
Requires rebuild of llvm-gcc4 (touch llvm-debug.cpp.)
llvm-svn: 29131
2006-07-13 15:27:42 +00:00
6c72aa7411
1. Support for c++ mangled names.
...
2. Support for private/protected class members.
llvm-svn: 29104
2006-07-11 15:58:09 +00:00
a7b2bd5997
Add and sort "sections" in debug lines. This always stepping through
...
code in sections other than ".text", including weak sections like ctors and
dtors.
llvm-svn: 28909
2006-06-23 12:51:53 +00:00
0a9e837b6f
Add support for function types.
...
llvm-svn: 28874
2006-06-20 19:41:06 +00:00
2837e3204f
References need to be section relative.
...
llvm-svn: 28861
2006-06-19 19:49:42 +00:00
f32058a2b7
References need to be section relative.
...
llvm-svn: 28858
2006-06-19 15:48:00 +00:00
Bill Wendling