7524fe4551
Revert "Reorder the sections being output to reduce the number of assembler"
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The inline table needs to be constructed ahead of time so that it doesn't try to
create new strings while we're emitting everything.
This reverts commit a8ff9bccb399183cdd5f1c3cec2bda763664b4b0.
llvm-svn: 151864
2012-03-02 00:30:24 +00:00
66b0721014
Reorder the sections being output to reduce the number of assembler
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fixups that are being used to determine section offsets. Reduces
the total number of fixups by 50% for a non-trivial testcase.
Part of rdar://10413936
llvm-svn: 151852
2012-03-01 22:50:31 +00:00
35145f830a
Minimal changes for LLVM to compile under VS11.
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llvm-svn: 151849
2012-03-01 22:42:52 +00:00
3a2656b394
Add the source language into the compile unit.
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llvm-svn: 151143
2012-02-22 08:46:13 +00:00
ee4dab5f1f
Convert assert(0) to llvm_unreachable
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llvm-svn: 149816
2012-02-05 08:31:47 +00:00
3e8ccc2000
Remove generation of DW_AT_sibling. Nothing as far as I can tell uses it.
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Saves about 1.5% on debug info size.
rdar://10278198
llvm-svn: 148794
2012-01-24 09:43:28 +00:00
090fcc1a10
Use const vector references instead of a vector copy. Spotted by Devang.
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llvm-svn: 147694
2012-01-06 23:03:34 +00:00
21bde87bf3
As part of the ongoing work in finalizing the accelerator tables, extend
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the debug type accelerator tables to contain the tag and a flag
stating whether or not a compound type is a complete type.
rdar://10652330
llvm-svn: 147651
2012-01-06 04:35:23 +00:00
365d083585
Extraneous whitespace and 80-col.
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llvm-svn: 146780
2011-12-16 23:42:31 +00:00
8dda5d0f06
Add inline subprogram names to the name lookup table since they may
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not get there any other way.
llvm-svn: 145789
2011-12-04 06:02:38 +00:00
50f02cb21b
Move global variables in TargetMachine into new TargetOptions class. As an API
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change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.
One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.
llvm-svn: 145714
2011-12-02 22:16:29 +00:00
e7cc8bff82
The dwarf standard says that the only differences between a out-of-line
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instance and a concrete inlined instance are the use of DW_TAG_subprogram
instead of DW_TAG_inlined_subroutine and the who owns the tree.
We were also omitting DW_AT_inline from the abstract roots. To fix this,
make sure we mark abstract instance roots with DW_AT_inline even when
we have only out-of-line instances referring to them with DW_AT_abstract_origin.
FileCheck is not a very good tool for tests like this, maybe we should add
a -verify mode to llvm-dwarfdump.
llvm-svn: 144441
2011-11-12 01:57:54 +00:00
79278365d3
Check in getOrCreateSubprogramDIE if a declaration exists and if so output
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it first.
This is a more general fix to pr11300.
llvm-svn: 144324
2011-11-10 22:34:29 +00:00
66b37db641
Make types and namespaces take multiple DIEs for the accelerator tables
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as well.
llvm-svn: 144319
2011-11-10 21:47:55 +00:00
d9843b34e6
Rework adding function names to the dwarf accelerator tables, allow
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multiple dies per function and support C++ basenames.
llvm-svn: 144304
2011-11-10 19:25:34 +00:00
966ed1b698
Add comments.
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llvm-svn: 144194
2011-11-09 18:16:11 +00:00
148db36263
Take advantage of the zero byte in StringMap when emitting dwarf stringpool entries.
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llvm-svn: 144184
2011-11-09 12:12:04 +00:00
5223a57533
Remove the pubnames section, no one consumes it.
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llvm-svn: 144169
2011-11-09 05:24:07 +00:00
08a558eeef
Also add the linkage name to the name accelerator tables if it exists
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and is different than the normal name.
llvm-svn: 144130
2011-11-08 21:56:23 +00:00
970771c0e8
Add the base ObjC method name to the names lookup table as well.
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llvm-svn: 144105
2011-11-08 19:16:01 +00:00
5139dadd50
Add all completed and named types to the dwarf type accelerator tables.
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llvm-svn: 144027
2011-11-07 22:11:16 +00:00
988ac00abd
Use StringRef::startswith to do some string comparisons.
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llvm-svn: 143982
2011-11-07 18:53:23 +00:00
cc979f9ae6
Allow for the case where the name of the subprogram is "".
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Fixes a self-host error.
llvm-svn: 143970
2011-11-07 18:10:17 +00:00
8c7505f258
Remove unnecessary addition to API. Replace with something much simpler.
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llvm-svn: 143925
2011-11-07 09:38:42 +00:00
4996c70034
Add the support code to enable the dwarf accelerator tables. Upcoming patches
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to fix the types section (all types, not just global types), and testcases.
The code to do the final emission is disabled by default.
llvm-svn: 143923
2011-11-07 09:24:32 +00:00
a7b6189071
Expose a way to get the beginning of the dwarf string section.
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llvm-svn: 143920
2011-11-07 09:18:38 +00:00
6abc9c5aaa
Fix up comment.
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llvm-svn: 143919
2011-11-07 09:18:35 +00:00
6cf4e830ce
Emit declarations before definitions if they are available. This causes DW_AT_specification to
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point back in the file in the included testcase. Fixes PR11300.
llvm-svn: 143726
2011-11-04 19:00:29 +00:00
d1ee7f8cf1
Don't emit a directory entry for the value in DW_AT_comp_dir, that is always
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implied by directory index zero.
llvm-svn: 143570
2011-11-02 20:55:33 +00:00
d59c0cac6c
Teach our Dwarf emission to use the string pool.
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llvm-svn: 143097
2011-10-27 06:44:11 +00:00
654f5ce812
Reflow lines, fix comments for doxygen style, fix whitespace. No functionality
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change.
llvm-svn: 143074
2011-10-26 22:55:33 +00:00
479a8fe75e
Minor style cleanup, no functionality change.
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llvm-svn: 142307
2011-10-17 23:27:36 +00:00
40f8f2ff24
Add support for a new extension to the .file directive:
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.file filenumber "directory" "filename"
This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.
llvm-svn: 142300
2011-10-17 23:05:28 +00:00
6647b83087
Add a new wrapper node for a DILexicalBlock that encapsulates it and a
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file. Since it should only be used when necessary propagate it through
the backend code generation and tweak testcases accordingly.
This helps with code like in clang's test/CodeGen/debug-info-line.c where
we have multiple #line directives within a single lexical block and want
to generate only a single block that contains each file change.
Part of rdar://10246360
llvm-svn: 141729
2011-10-11 22:59:11 +00:00
f84354bfb1
Typo.
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llvm-svn: 141004
2011-10-03 15:49:16 +00:00
59e27c5f12
Do not use named md nodes to track variables that are completely optimized. This does not scale while doing LTO with debug info. New approach is to include list of variables in the subprogram info directly.
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llvm-svn: 138145
2011-08-19 23:28:12 +00:00
0ecbcbd12c
Eliminate unnecessary forwarding function.
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llvm-svn: 138006
2011-08-18 23:17:55 +00:00
eb1bb4e419
Until now all debug info MDNodes referred to a root MDNode, a compile unit. This simplified handling of these needs in dwarf writer. However, one side effect of this is that during link time optimization all these MDNodes are _not_ uniqued. In other words there will be N number of MDNodes describing "int", "char" and all other types, which would suddenly grow when each object file starts using libraries like STL.
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MDNodes graph structure such that compiler unit keeps track of important MDNodes and update dwarf writer to process mdnodes top-down instead of bottom up.
llvm-svn: 137778
2011-08-16 22:09:43 +00:00
927840458e
Remove unnecessary version check.
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llvm-svn: 137728
2011-08-16 17:41:41 +00:00
07bb9eea33
Refactor.
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llvm-svn: 137689
2011-08-15 23:47:24 +00:00
1f4f98d664
Continue to hoist uses of getCompileUnit() up. The goal is to get rid of uses of getCompileUnit().
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llvm-svn: 137683
2011-08-15 23:36:40 +00:00
d2dfc5ec02
This is somewhat déjà-vu, but avoid using getCompileUnit() as much as possible.
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llvm-svn: 137668
2011-08-15 22:24:32 +00:00
3acc70e536
Refactor. Variables are part of compile unit so let CompileUnit create new variable.
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llvm-svn: 137663
2011-08-15 22:04:40 +00:00
d899444347
There is no need to maintain a set to keep track of variables that use location expressions. In such cases, AT_location attribute's value will be a label.
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llvm-svn: 137659
2011-08-15 21:43:21 +00:00
900d97719b
Fix warning.
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llvm-svn: 137658
2011-08-15 21:35:16 +00:00
3e4a965519
Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction.
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llvm-svn: 137656
2011-08-15 21:24:36 +00:00
99819b527d
Simplify mapping to variable from its abstract variable info.
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When a variable is inlined multiple places, abstract variable keeps name, location, type etc.. info and all other concreate instances of the variable directly refers to abstract variable.
llvm-svn: 137637
2011-08-15 19:01:20 +00:00
d7d80aadd1
Refactor.
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llvm-svn: 137632
2011-08-15 18:40:16 +00:00
6e4d2c9fb7
Refactor.
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llvm-svn: 137631
2011-08-15 18:35:42 +00:00
dfd6ec3ce1
Refactor. Global variables are part of compile unit so let CompileUnit create new global variable.
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llvm-svn: 137621
2011-08-15 17:57:41 +00:00
895437142a
Refactor. A subprogram is part of compile unit so let CompileUnit construct new subprogram.
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llvm-svn: 137618
2011-08-15 17:24:54 +00:00
444034783e
Use ArrayRef.
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llvm-svn: 137485
2011-08-12 18:10:19 +00:00
fa7e6a54b1
Plug a memory leak.
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llvm-svn: 137321
2011-08-11 18:39:28 +00:00
784077eb57
Stay within 80 columns.
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llvm-svn: 137283
2011-08-10 23:58:09 +00:00
bb23a4a9a5
Distinguish between two copies of one inlined variable. Take 2.
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llvm-svn: 137253
2011-08-10 21:50:54 +00:00
e30746c844
Revert unintentional parts of previous check-in.
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llvm-svn: 137249
2011-08-10 21:16:49 +00:00
7e62302fae
Start using LexicalScopes utility. No intetional functionality change.
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llvm-svn: 137246
2011-08-10 20:55:27 +00:00
fee7cedbc9
Simplify by creating parent first.
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llvm-svn: 137056
2011-08-08 18:22:10 +00:00
81b7e11c89
Temporarily revert r135528 which distinguishes between two copies of one
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inlined variable, based on the discussion in PR10542.
This explodes the runtime of several passes down the pipeline due to
a large number of "copies" remaining live across a large function. This
only shows up with both debug and opt, but when it does it creates
a many-minute compile when self-hosting LLVM+Clang. There are several
other cases that show these types of regressions.
All of this is tracked in PR10542, and progress is being made on fixing
the issue. Once its addressed, the re-instated, but until then this
restores the performance for self-hosting and other opt+debug builds.
Devang, let me know if this causes any trouble, or impedes fixing it in
any way, and thanks for working on this!
llvm-svn: 136953
2011-08-05 00:51:31 +00:00
0a8d5c6047
Some revisions to Devang's change r136759 for merged global debug info.
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llvm-svn: 136802
2011-08-03 19:42:51 +00:00
dc9cbaaf23
Use byte offset, instead of element number, to access merged global.
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llvm-svn: 136759
2011-08-03 01:25:46 +00:00
019d255d3e
Fix a lot of typos, improve (but not necessarily fix) grammaros and reflow some
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lines. No functionality change.
llvm-svn: 136458
2011-07-29 03:49:23 +00:00
53dc616170
Remove outdated FIXME comment.
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llvm-svn: 136275
2011-07-27 22:00:01 +00:00
f098ce2757
It is quiet possible that inlined function body is split into multiple chunks of consequtive instructions. But, there is not any way to describe this in .debug_inline accelerator table used by gdb. However, describe non contiguous ranges of inlined function body appropriately using AT_range of DW_TAG_inlined_subroutine debug info entry.
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llvm-svn: 136196
2011-07-27 00:34:13 +00:00
613958c82c
While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time.
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llvm-svn: 136106
2011-07-26 18:09:53 +00:00
ddfe66e948
Refactor.
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llvm-svn: 135633
2011-07-20 23:00:27 +00:00
8fb9fd6769
There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.
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llvm-svn: 135629
2011-07-20 22:18:50 +00:00
a59b24b090
Distinguish between two copies of one inlined variable.
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llvm-svn: 135528
2011-07-19 22:31:15 +00:00
b7cc06366d
Use DebugLoc directly to map inlined functions' instructions to respective lexical scope.
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llvm-svn: 135302
2011-07-15 21:25:44 +00:00
f5f352dda5
Eliminate redundant map.
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llvm-svn: 135278
2011-07-15 16:38:42 +00:00
b46f3e24ba
Reverting r135232. It's causing infinite looping in DbgScope::openInsnRange.
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llvm-svn: 135254
2011-07-15 06:26:35 +00:00
001c4f3ff0
Do not get confused by multiple empty lexical scopes inlined at one location.
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llvm-svn: 135232
2011-07-15 00:30:39 +00:00
4771159f9f
Refactor.
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llvm-svn: 135212
2011-07-14 23:17:49 +00:00
1f9913fdb2
Eliminate redundant LLVMContext argument.
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Improve DbgScope->dump() output.
llvm-svn: 135207
2011-07-14 22:30:56 +00:00
d5234bbced
Simplify.
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llvm-svn: 135127
2011-07-14 01:52:45 +00:00
07d61edc30
Simplify and delay extracting DebugLoc elements, scope and InlinedAt, as much as possible.
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llvm-svn: 135124
2011-07-14 01:14:57 +00:00
e07ebe32bf
Simplify. Compile unit check inside hasValidLocation() did not add any value.
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llvm-svn: 135118
2011-07-14 00:20:24 +00:00
a9195bcff0
Fix typo in DEBUG message.
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llvm-svn: 135111
2011-07-14 00:04:53 +00:00
2cce0d103d
Add DEBUG messages.
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llvm-svn: 135110
2011-07-14 00:03:58 +00:00
2442a89eb9
Refactor.
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llvm-svn: 134703
2011-07-08 17:09:57 +00:00
ed9fd45740
Make provision to have floating point constants in .debug_loc expressions.
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llvm-svn: 134702
2011-07-08 16:49:43 +00:00
53b050aec6
Add DEBUG message.
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llvm-svn: 134643
2011-07-07 21:44:42 +00:00
b7a328ed27
Add DEBUG messages.
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llvm-svn: 134572
2011-07-07 00:14:27 +00:00
92ca8fc927
Remove dead code.
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llvm-svn: 134561
2011-07-06 23:26:18 +00:00
f071d72c44
Handle debug info for i128 constants.
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llvm-svn: 133821
2011-06-24 20:46:11 +00:00
440c3b7306
Use path API for path concatenation.
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llvm-svn: 132668
2011-06-05 14:36:47 +00:00
e7181b5fdb
A DBG_VALUE that truncates a range does not start another dbg value range.
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llvm-svn: 132433
2011-06-01 23:00:17 +00:00
324f843107
Do not drop constant values when a variable's content is described using .debug_loc entries.
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llvm-svn: 132427
2011-06-01 22:03:25 +00:00
e9853f25ad
Include global types, that are referenced through local variables, in debug_pubtypes list.
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llvm-svn: 132371
2011-05-31 22:56:51 +00:00
d23bfb8a7a
Make size computation less brittle.
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llvm-svn: 132222
2011-05-27 22:05:41 +00:00
3c6aed2d98
Select DW_AT_const_value size based on variable size.
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llvm-svn: 132193
2011-05-27 16:45:18 +00:00
354fa0798f
Fix debug info for blocks' variable.
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llvm-svn: 131940
2011-05-24 00:22:25 +00:00
faaa16ea2c
Remove unnecessary comment.
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llvm-svn: 131936
2011-05-23 23:16:14 +00:00
34a6620748
Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
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llvm-svn: 131194
2011-05-11 19:22:19 +00:00
2fe0ee1ce2
Rename DwarfRequiresRelocationForStmtList to
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DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.
llvm-svn: 131148
2011-05-10 20:35:05 +00:00
589845d887
Do not ignore InlinedAt while walking up scope chain to find subprogram node.
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llvm-svn: 131106
2011-05-09 22:14:49 +00:00
17b532728b
Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
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llvm-svn: 130991
2011-05-06 16:57:54 +00:00
a716096677
Dead code elimination.
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llvm-svn: 130984
2011-05-06 14:56:22 +00:00
d6141e1db2
Remove little used statistical counter.
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llvm-svn: 130955
2011-05-05 22:00:08 +00:00
73bc172493
If debug info for inlined function is missing then handle it gracefully.
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llvm-svn: 130933
2011-05-05 17:54:26 +00:00
Eric Christopher