9a624fa993
Collect and coalesce DBG_VALUE instructions before emitting the function.
...
Correctly terminate the range of register DBG_VALUEs when the register is
clobbered or when the basic block ends.
The code is now ready to deal with variables that are sometimes in a register
and sometimes on the stack. We just need to teach emitDebugLoc to say 'stack
slot'.
llvm-svn: 128327
2011-03-26 02:19:36 +00:00
1886a4c823
Emit less labels for debug info and stop emitting .loc directives for DBG_VALUEs.
...
The .dot directives don't need labels, that is a leftover from when we created
line number info manually.
Instructions following a DBG_VALUE can share its label since the DBG_VALUE
doesn't produce any code.
llvm-svn: 128284
2011-03-25 17:20:59 +00:00
e01b75cb89
Keep track of directory namd and fIx regression caused by Rafael's patch r119613.
...
A better approach would be to move source id handling inside MC.
llvm-svn: 128233
2011-03-24 20:30:50 +00:00
a87d80cdca
Don't coalesce identical DBG_VALUE instructions prematurely.
...
Each of these instructions may have a RegsClobberInsn entry that can't be
ignored. Consecutive ranges are coalesced later when DwarfDebug::emitDebugLoc
merges entries.
llvm-svn: 128155
2011-03-23 18:37:30 +00:00
ec0ac3ca40
Reapply r128045 and r128051 with fixes.
...
This will extend the ranges of debug info variables in registers until they are
clobbered.
Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.
Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.
llvm-svn: 128114
2011-03-22 22:33:08 +00:00
b0f98bb5e9
Revert r128045 and r128051, debug info enhancements.
...
Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.
llvm-svn: 128097
2011-03-22 19:18:42 +00:00
c6f4af028d
Clear map after use.
...
This is likely to fix the segfault in llvm-gcc-x86_64-darwin10-cross-mingw32.
llvm-svn: 128051
2011-03-22 01:03:24 +00:00
9c057ee440
Dont emit 'DBG_VALUE %noreg, ...' to terminate user variable ranges.
...
These ranges get completely jumbled by the post-ra scheduler, and it is not
really reasonable to expect it to make sense of them.
Instead, teach DwarfDebug to notice when user variables in registers are
clobbered, and terminate the ranges there.
llvm-svn: 128045
2011-03-22 00:21:41 +00:00
fd95b016fb
Revert r127757, "Patch to a fix dwarf relocation problem on ARM. One-line fix
...
plus the test where it used to break.", which broke Clang self-host of a
Debug+Asserts compiler, on OS X.
llvm-svn: 127763
2011-03-16 22:16:39 +00:00
a3aeafeb35
Patch to a fix dwarf relocation problem on ARM. One-line fix plus the test where it used to break.
...
llvm-svn: 127757
2011-03-16 21:05:52 +00:00
63b3e76370
Fix typo.
...
llvm-svn: 126962
2011-03-03 21:49:41 +00:00
34a7ab400e
Fix thinko in previous check-in.
...
Add comment.
llvm-svn: 126959
2011-03-03 20:08:10 +00:00
4ab660b077
llvm::Function argument count is not a good indicator of how many arugments does the function have at source level. If we need more space, just resize vector conservatively. This vector is only used once per function.
...
llvm-svn: 126957
2011-03-03 20:02:02 +00:00
6c622ef1bc
If argument numbering is encoded in metadata then emit arguments' debug info in that order.
...
llvm-svn: 126794
2011-03-01 22:58:55 +00:00
fcf51fd298
Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
...
llvm-svn: 126488
2011-02-25 16:30:32 +00:00
b037383a35
Enable DebugInfo support for COFF object files.
...
Patch by Nathan Jeffords!
llvm-svn: 126425
2011-02-24 21:04:00 +00:00
a5d93247c2
Do not use DIFactory.
...
llvm-svn: 126397
2011-02-24 18:49:30 +00:00
7b0f796c55
Use DW_FORM_data2 for DW_AT_language and let users use DW_LANG_lo_user=0x8000 to DW_LANG_hi_user=0xffff range.
...
llvm-svn: 126339
2011-02-23 22:37:04 +00:00
5f1b4cdda1
Do not emit empty DW_TAG_lexical_block DIEs. In one test case, size of debug info reduced by almost 7%.
...
llvm-svn: 126009
2011-02-19 01:31:27 +00:00
d12c0a2764
Ignore DBG_VALUE machine instructions while constructing instruction ranges based on location info.
...
Machine instruction range consisting of only DBG_VALUE MIs only contributes consecutive labels in assembly output, which is harmless, and empty scope entry in DebugInfo, which confuses debugger tools.
llvm-svn: 125577
2011-02-15 17:56:09 +00:00
116a9d7c38
Merge .debug_loc entries whenever possible to reduce debug_loc size.
...
llvm-svn: 124904
2011-02-04 22:57:18 +00:00
be933b470a
Add support to describe template value parameter in debug info.
...
llvm-svn: 124755
2011-02-02 22:35:53 +00:00
3a9e65efb6
Add support to describe template parameter type in debug info.
...
llvm-svn: 124752
2011-02-02 21:38:25 +00:00
2d9e532a3a
Fix debug info for merged global.
...
llvm-svn: 123862
2011-01-20 00:02:16 +00:00
8698f09dbd
Fix register address expression. Patch by Ken Dyck.
...
llvm-svn: 123856
2011-01-19 23:04:47 +00:00
447cb38fbe
Appropriately truncate debug info range in dwarf output.
...
This is not yet completely enabled.
llvm-svn: 123274
2011-01-11 21:42:10 +00:00
2f93128109
Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
...
llvm-svn: 123170
2011-01-10 12:39:04 +00:00
acbee0b0d9
Speculatively revert r123032.
...
llvm-svn: 123039
2011-01-07 22:33:41 +00:00
6381e1584c
Appropriately truncate debug info range in dwarf output.
...
Enable live debug variables pass.
llvm-svn: 123032
2011-01-07 21:30:41 +00:00
70eb982843
Emit 128 bit constant.
...
This fixes PR 8913 crash.
llvm-svn: 122971
2011-01-06 21:39:25 +00:00
c26da9005b
DW_FORM_data1 may not provide sufficient room for vtable index, use _udata instead.
...
This fixes radar 8730409.
llvm-svn: 121323
2010-12-09 00:10:40 +00:00
bca5b25721
Undefined value in reg 0 may need a marker to identify end of source range.
...
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.
llvm-svn: 121061
2010-12-06 22:48:22 +00:00
447762da85
Merge System into Support.
...
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
4687778398
Move some more hooks to TargetFrameInfo
...
llvm-svn: 119904
2010-11-20 15:59:32 +00:00
14ee344944
Move getInitialFrameState() to TargetFrameInfo
...
llvm-svn: 119754
2010-11-18 23:25:52 +00:00
67c6ab8865
Change CodeGen to use .loc directives. This produces a lot more readable output
...
and testing is easier. A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0". We also don't use a DW_LNE_set_address for
every address change anymore.
llvm-svn: 119613
2010-11-18 02:04:25 +00:00
53a40df6ea
Remove DW_AT_start_scope support. It is incomplete and superseeded by location entries support.
...
llvm-svn: 118940
2010-11-12 23:20:42 +00:00
364bf04267
Take care of special characters while creating named MDNode name to hold function specific local variable's info.
...
This fixes radar 8653152. I am checking in testcase as a separate check-in.
llvm-svn: 118726
2010-11-10 22:19:21 +00:00
e755966913
Simplify.
...
llvm-svn: 118027
2010-11-02 17:37:00 +00:00
6e0d58968d
Ignore empty blocks.
...
llvm-svn: 117615
2010-10-28 22:11:59 +00:00
1c75865037
Do not work too hard to find type's file info. There is a special field to record file info.
...
llvm-svn: 117588
2010-10-28 19:50:08 +00:00
c4b69051b7
Technically DIFile scope should also be handled here.
...
llvm-svn: 117563
2010-10-28 17:30:52 +00:00
b5694e702c
s/beginScope/beginInstruction/g
...
s/endScope/endInstruction/g
llvm-svn: 117376
2010-10-26 17:49:02 +00:00
90b2ac2696
For statistics that are only used in functions declared in !NDEBUG, wrap the
...
declarations in !NDEBUG to avoid -Wunused-variable warnings. Patch by
Matt Beaumont-Gay!
llvm-svn: 117345
2010-10-26 00:51:57 +00:00
a86114b961
Add simple counter to count no. of basic blocks without any line number information. At -O0, these basic block coule cause less than optimial debugging experience.
...
llvm-svn: 117307
2010-10-25 20:45:32 +00:00
dd1c289a6a
Line number 0 indicates there is no source line/file name info available for this construct.
...
llvm-svn: 116061
2010-10-08 17:18:54 +00:00
3a24f9230a
Provie a clearner interface so that FE can decide whether a function has prototype or not.
...
llvm-svn: 115988
2010-10-07 22:03:01 +00:00
9a33ec24eb
Add support for DW_TAG_unspecified_parameters.
...
llvm-svn: 115833
2010-10-06 20:50:40 +00:00
e1c714647c
Add support to let FE mark explict methods as explict in debug info.
...
llvm-svn: 115378
2010-10-01 23:31:40 +00:00
bea08d1c85
Let FE mark a variable as artificial variable.
...
llvm-svn: 115102
2010-09-29 23:07:21 +00:00
Jakob Stoklund Olesen