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Commit Graph

92 Commits

Author SHA1 Message Date
Devang Patel
cfd24dc84c Refactor code to push DILocation prcessing into DwarfDebug.cpp from AsmPrinter.cpp.
This is same as r99772 (which was reverted) with just one meaningful difference where two source lines exchanged their positions.

llvm-svn: 99816
2010-03-29 17:20:31 +00:00
Devang Patel
66e9b05428 Revert 99772.
llvm-svn: 99778
2010-03-28 21:23:37 +00:00
Devang Patel
bb5063a8cd Refactoring. Push DILocation processing in to DwarfDebug from AsmPrinter.
llvm-svn: 99772
2010-03-28 18:57:09 +00:00
Chris Lattner
d51f1bdc58 reapply r98035:
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98047
2010-03-09 04:54:43 +00:00
Eric Christopher
8875eba06a Speculatively revert r98035. It appears to have caused a set of buildbot
failures.

llvm-svn: 98039
2010-03-09 02:36:31 +00:00
Chris Lattner
c4a74bf48b Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98035
2010-03-09 02:08:02 +00:00
Chris Lattner
7dbd5458b2 constify a bunch of dwarf stuff now that the registerinfo method
is constified.

llvm-svn: 94613
2010-01-26 23:18:02 +00:00
Devang Patel
c024e96ca3 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes.
llvm-svn: 87014
2009-11-12 19:02:56 +00:00
Devang Patel
5c983cb2ab Implement support to debug inlined functions.
llvm-svn: 86748
2009-11-10 23:06:00 +00:00
Devang Patel
1639c0e45a Add support to handle debug info attached to an instruction.
This is not yet enabled.

llvm-svn: 83400
2009-10-06 18:37:31 +00:00
Devang Patel
044648c2d7 Use MDNode * directly as an RecordSourceLine() argument.
llvm-svn: 83182
2009-09-30 22:51:28 +00:00
Devang Patel
fbaeda732e Reapply 79977.
Use MDNodes to encode debug info in llvm IR.

llvm-svn: 80406
2009-08-28 23:24:31 +00:00
Devang Patel
10c075a316 Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
llvm-svn: 80073
2009-08-26 05:01:18 +00:00
Devang Patel
7d42bfab6c Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)

llvm-svn: 79977
2009-08-25 05:24:07 +00:00
Chris Lattner
5d8af49626 Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
llvm-svn: 79763
2009-08-22 20:48:53 +00:00
Devang Patel
c071d6c1b4 Record variable debug info at ISel time directly.
llvm-svn: 79742
2009-08-22 17:12:53 +00:00
Dan Gohman
ebacd61d7d Revert 71165. It did more than just revert 71158 and it introduced
several regressions. The problem due to 71158 is now fixed.

llvm-svn: 71176
2009-05-07 19:46:24 +00:00
Bill Wendling
9f97e4a3dc Temporarily revert r71158. It was causing a failure during a full bootstrap:
checking for bcopy... no
checking for getc_unlocked... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decUtility.c:360: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[4]: *** [decUtility.o] Error 1
make[4]: *** Waiting for unfinished jobs....
Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decNumber.c:5591: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[4]: *** [decNumber.o] Error 1
make[3]: *** [all-stage2-libdecnumber] Error 2
make[3]: *** Waiting for unfinished jobs....

llvm-svn: 71165
2009-05-07 17:26:14 +00:00
Argyrios Kyrtzidis
0f60e636c0 Make DwarfWriter::RecordInlinedFnStart more like the other DwarfWriter's methods:
-Have it return a label ID
-Remove the unused Instruction parameter

No functionality change.

llvm-svn: 71132
2009-05-07 00:16:31 +00:00
Argyrios Kyrtzidis
a034549d67 -Move the DwarfWriter::ValidDebugInfo check to a static DIDescriptor::ValidDebugInfo
-Create DebugLocs without the need to have a DwarfWriter around

llvm-svn: 70682
2009-05-03 08:50:41 +00:00
Argyrios Kyrtzidis
9956976b76 Make DebugLoc independent of DwarfWriter.
-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)

llvm-svn: 70520
2009-04-30 23:22:31 +00:00
Bill Wendling
40a162f75f Instead of passing in an unsigned value for the optimization level, use an enum,
which better identifies what the optimization is doing. And is more flexible for
future uses.

llvm-svn: 70440
2009-04-29 23:29:43 +00:00
Bill Wendling
7546bed590 Second attempt:
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.

llvm-svn: 70343
2009-04-29 00:15:41 +00:00
Bill Wendling
ef47ace92f r70270 isn't ready yet. Back this out. Sorry for the noise.
llvm-svn: 70275
2009-04-28 01:04:53 +00:00
Bill Wendling
2799e916c3 Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...

llvm-svn: 70270
2009-04-28 00:21:31 +00:00
Devang Patel
f2b9c22687 Construct and emit DW_TAG_inlined_subroutine DIEs for inlined subroutine scopes (only in FastISel mode).
llvm-svn: 69116
2009-04-15 00:10:26 +00:00
Devang Patel
92d79ef835 Right now, Debugging information to encode scopes (DW_TAG_lexical_block) relies on DBG_LABEL. Unfortunately this intefers with the quality of optimized code.
This patch updates dwarf writer to encode scoping information in DWARF only in FastISel mode.

llvm-svn: 68973
2009-04-13 18:13:16 +00:00
Devang Patel
ad7f61c279 Reapply 68847.
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.

llvm-svn: 68964
2009-04-13 17:02:03 +00:00
Dan Gohman
ac11c8d30f Revert r68847. It breaks the build on non-Darwin targets, with this message
from the assembler:

Error: unknown pseudo-op: `.debug_inlined'
llvm-svn: 68863
2009-04-11 15:57:04 +00:00
Devang Patel
6f907173e0 Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.

llvm-svn: 68847
2009-04-11 00:16:47 +00:00
Bill Wendling
c0ffcaacf8 Refine the Dwarf writer timers so that they measure exception writing and debug
writing individually.

llvm-svn: 66577
2009-03-10 21:23:25 +00:00
Bill Wendling
4609f8d7c1 Add a timer to the DwarfWriter pass that measures the total time it takes to
emit exception and debug Dwarf info.

llvm-svn: 66571
2009-03-10 20:41:52 +00:00
Evan Cheng
befebff8fc Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior.
This is a very minor compile time win.

llvm-svn: 65438
2009-02-25 07:04:34 +00:00
Bill Wendling
9d4eb136da Overhaul my earlier submission due to feedback. It's a large patch, but most of
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379
2009-02-24 08:30:20 +00:00
Bill Wendling
0d8316c5e0 - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367
2009-02-24 02:35:30 +00:00
Bill Wendling
75751a4769 Add an accessor method to DwarfWriter to tell of debugging info should be emitted.
llvm-svn: 65092
2009-02-20 00:44:43 +00:00
Evan Cheng
735e3b02aa Looks like comments were chopped off.
llvm-svn: 63007
2009-01-26 07:40:13 +00:00
Devang Patel
1ee58c7d8c Validate dbg_* intrinsics before lowering them.
llvm-svn: 62286
2009-01-15 23:41:32 +00:00
Devang Patel
7a618394f6 Undo previous checkin.
llvm-svn: 62190
2009-01-13 22:54:57 +00:00
Devang Patel
e0f23e966d Use DwarfWriter to record dbg variables.
llvm-svn: 62185
2009-01-13 21:44:10 +00:00
Devang Patel
ab5ef6abf1 Use dwarf writer to decide whether the module has debug info or not.
llvm-svn: 62184
2009-01-13 21:25:00 +00:00
Devang Patel
27f9c78c56 Add DwarfWriter interface to mainipulate source location info.
( May be this info should be directly handled by the dwarf writer ? )

llvm-svn: 62096
2009-01-12 19:17:34 +00:00
Devang Patel
747d4b38ad Convert DwarfWriter into a pass.
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955
2009-01-08 23:40:34 +00:00
Dan Gohman
8271066844 Tidy up #includes, deleting a bunch of unnecessary #includes.
llvm-svn: 61715
2009-01-05 17:59:02 +00:00
Bill Wendling
bf75299f0a If we have a function with an unreachable statement such that the ending debug
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
2008-09-26 00:28:12 +00:00
Owen Anderson
2c1d54952b Use raw_ostream throughout the AsmPrinter.
llvm-svn: 55092
2008-08-21 00:14:44 +00:00
Chris Lattner
e0b1ee937a Don't attribute in file headers anymore. See llvmdev for the
discussion of this change.  Boy are my fingers tired. ;-)

llvm-svn: 45411
2007-12-29 19:59:42 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC.
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
Jim Laskey
64f4242072 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
Bill Wendling
4d1444725b Removed more <iostream> includes
llvm-svn: 32321
2006-12-07 20:28:15 +00:00