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Author SHA1 Message Date
Eric Christopher
dde7784606 Temporarily revert c23b933d5f8be9b51a1d22e717c0311f65f87dcd. It's causing 
failures in the debug testsuite and possibly PR13486.

llvm-svn: 161121
 2012-08-01 18:19:01 +00:00
Eric Christopher
acd91c534d Add a DW_AT_high_pc for CUs that are a single address range. Update 
all tests accordingly.

Fixes PR13351.

Patch by shinichiro hamaji!

llvm-svn: 160899
 2012-07-27 22:00:05 +00:00
Eric Christopher
2db5457cb8 The end of the prologue should be marked with is_stmt. 
Fixes PR13303.

Patch by Paul Robinson!

llvm-svn: 160148
 2012-07-12 23:30:25 +00:00
Alexey Samsonov
195a9e9c55 Fix PR13202 and a regtest. 
DwarfDebug class could generate the same (inlined) DIVariable twice:
1) when trying to find abstract debug variable for a concrete inlined instance.
2) when explicitly collecting info for variables that were optimized out.

This change makes sure that this duplication won't happen and makes
Clang pass "gdb.opt/inline-locals" test from gdb testsuite.

Reviewed by Eric Christopher.

llvm-svn: 159811
 2012-07-06 08:45:08 +00:00
Bill Wendling
74b96ac7b8 The DIBuilder class is just a wrapper around debug info creation 
(a.k.a. MDNodes). The module doesn't belong in Analysis. Move it to the VMCore
instead.

llvm-svn: 159414
 2012-06-29 08:32:07 +00:00
Bill Wendling
e8949ecfa6 Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and 
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.

llvm-svn: 159312
 2012-06-28 00:05:13 +00:00
Rafael Espindola
13084dd6a3 Fix a FIXME: DwarfRequiresRelocationForSectionOffset is the same as 
DwarfUsesRelocationsAcrossSections.

llvm-svn: 158992
 2012-06-22 13:24:07 +00:00
Nick Lewycky
da52706728 Emit relocations for DW_AT_location entries on systems which need it. This is 
a recommit of r127757. Fixes PR9493. Patch by Paul Robinson!

llvm-svn: 158957
 2012-06-22 01:25:12 +00:00
Benjamin Kramer
bbdde33ff0 Allocate the contents of DwarfDebug's StringMaps in a single big BumpPtrAllocator. 
llvm-svn: 158265
 2012-06-09 10:34:15 +00:00
Jakob Stoklund Olesen
be0b8939c0 Switch all register list clients to the new MC*Iterator interface. 
No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854
 2012-06-01 23:28:30 +00:00
Eric Christopher
01248cbb6f Remove duplicate code that we could just fallthrough to. 
llvm-svn: 157060
 2012-05-18 18:24:15 +00:00
Eric Christopher
218078152b Fix thinko in conditional. 
Part of rdar://11352000 and should bring the buildbots back.

llvm-svn: 156421
 2012-05-08 21:24:39 +00:00
Eric Christopher
63b73ede75 Handle OpDeref in case it comes in as a register operand. 
Part of rdar://11352000

llvm-svn: 156405
 2012-05-08 18:56:00 +00:00
Eric Christopher
2e17b32e69 Patch to set is_stmt a little better for prologue lines in a function. 
This enables debuggers to see what are interesting lines for a
breakpoint rather than any line that starts a function.

rdar://9852092

llvm-svn: 154120
 2012-04-05 20:39:05 +00:00
Eric Christopher
53ef0cf4a5 Fix thinko check for number of operands to be the one that actually 
might have more than 19 operands. Add a testcase to make sure I
never screw that up again.

Part of rdar://11026482

llvm-svn: 153961
 2012-04-03 17:55:42 +00:00
Eric Christopher
ba40985484 Add a line number for the scope of the function (starting at the first 
brace) so that we get more accurate line number information about the
declaration of a given function and the line where the function
first starts.

Part of rdar://11026482

llvm-svn: 153916
 2012-04-03 00:43:49 +00:00
Eric Christopher
6c4e6016b5 Turn on the accelerator tables for Darwin. 
llvm-svn: 153880
 2012-04-02 17:58:52 +00:00
Eric Christopher
5f34828440 Use DW_AT_low_pc for a single entry point into a routine. 
Fixes PR10105

llvm-svn: 153524
 2012-03-27 18:35:54 +00:00
Eric Christopher
c1784e9de8 Use the file in the inlined die rather than the compile unit for 
backtrace locations.

Testcase forthcoming, but I wanted to get some testing here.

Should fix:

PR12323
PR12314
rdar://11091100

llvm-svn: 153471
 2012-03-26 21:38:38 +00:00
Benjamin Kramer
c798b7be6d DwarfDebug: Store the filename/dirname pair as a zero-separated string in a stringmap, instead of using a highly inefficient std::map of a pair of std::strings. 
llvm-svn: 152541
 2012-03-11 14:56:26 +00:00
Craig Topper
8cc9d75c6a Use uint16_t to store register overlaps to reduce static data. 
llvm-svn: 152001
 2012-03-04 10:43:23 +00:00
Eric Christopher
bb8f3701cd Grammar-o in function name. 
llvm-svn: 151875
 2012-03-02 02:11:47 +00:00
Eric Christopher
a634c38544 If the linkage name doesn't exist we're supposed to emit a reference 
to the string table for the function name, not the function name.

llvm-svn: 151873
 2012-03-02 01:57:52 +00:00
Eric Christopher
39493f0f97 Revert "Reorder the sections being output to reduce the number of assembler" 
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
Eric Christopher
3d271eb540 Reorder the sections being output to reduce the number of assembler 
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
Michael J. Spencer
0eb4a851f6 Minimal changes for LLVM to compile under VS11. 
llvm-svn: 151849
 2012-03-01 22:42:52 +00:00
Eric Christopher
32802595f6 Add the source language into the compile unit. 
llvm-svn: 151143
 2012-02-22 08:46:13 +00:00
Craig Topper
d218e7cb60 Convert assert(0) to llvm_unreachable 
llvm-svn: 149816
 2012-02-05 08:31:47 +00:00
Eric Christopher
afc99847bf Remove generation of DW_AT_sibling. Nothing as far as I can tell uses it. 
Saves about 1.5% on debug info size.

rdar://10278198

llvm-svn: 148794
 2012-01-24 09:43:28 +00:00
Eric Christopher
354c1a6691 Use const vector references instead of a vector copy. Spotted by Devang. 
llvm-svn: 147694
 2012-01-06 23:03:34 +00:00
Eric Christopher
3f80f9acaa As part of the ongoing work in finalizing the accelerator tables, extend 
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
Eric Christopher
945c822d26 Extraneous whitespace and 80-col. 
llvm-svn: 146780
 2011-12-16 23:42:31 +00:00
Eric Christopher
5697266013 Add inline subprogram names to the name lookup table since they may 
not get there any other way.

llvm-svn: 145789
 2011-12-04 06:02:38 +00:00
Nick Lewycky
7d0d3c2d58 Move global variables in TargetMachine into new TargetOptions class. As an API 
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
Rafael Espindola
5f6b14719f The dwarf standard says that the only differences between a out-of-line 
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
Rafael Espindola
e7024f983a Check in getOrCreateSubprogramDIE if a declaration exists and if so output 
it first.

This is a more general fix to pr11300.

llvm-svn: 144324
 2011-11-10 22:34:29 +00:00
Eric Christopher
204348c454 Make types and namespaces take multiple DIEs for the accelerator tables 
as well.

llvm-svn: 144319
 2011-11-10 21:47:55 +00:00
Eric Christopher
60be243dc5 Rework adding function names to the dwarf accelerator tables, allow 
multiple dies per function and support C++ basenames.

llvm-svn: 144304
 2011-11-10 19:25:34 +00:00
Benjamin Kramer
71e3909e9c Add comments. 
llvm-svn: 144194
 2011-11-09 18:16:11 +00:00
Benjamin Kramer
64e040aef6 Take advantage of the zero byte in StringMap when emitting dwarf stringpool entries. 
llvm-svn: 144184
 2011-11-09 12:12:04 +00:00
Eric Christopher
c916a28d7f Remove the pubnames section, no one consumes it. 
llvm-svn: 144169
 2011-11-09 05:24:07 +00:00
Eric Christopher
eba4abd2aa Also add the linkage name to the name accelerator tables if it exists 
and is different than the normal name.

llvm-svn: 144130
 2011-11-08 21:56:23 +00:00
Eric Christopher
9fc74dc3f8 Add the base ObjC method name to the names lookup table as well. 
llvm-svn: 144105
 2011-11-08 19:16:01 +00:00
Eric Christopher
37cd1659cb Add all completed and named types to the dwarf type accelerator tables. 
llvm-svn: 144027
 2011-11-07 22:11:16 +00:00
Eric Christopher
2b26dd515a Use StringRef::startswith to do some string comparisons. 
llvm-svn: 143982
 2011-11-07 18:53:23 +00:00
Eric Christopher
27787a743e Allow for the case where the name of the subprogram is "". 
Fixes a self-host error.

llvm-svn: 143970
 2011-11-07 18:10:17 +00:00
Eric Christopher
fddc6980b7 Remove unnecessary addition to API. Replace with something much simpler. 
llvm-svn: 143925
 2011-11-07 09:38:42 +00:00
Eric Christopher
f9c4db49bd Add the support code to enable the dwarf accelerator tables. Upcoming patches 
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
Eric Christopher
64ea0f378b Expose a way to get the beginning of the dwarf string section. 
llvm-svn: 143920
 2011-11-07 09:18:38 +00:00
Eric Christopher
e0fc702988 Fix up comment. 
llvm-svn: 143919
 2011-11-07 09:18:35 +00:00
Rafael Espindola
a022f4813e Emit declarations before definitions if they are available. This causes DW_AT_specification to 
point back in the file in the included testcase. Fixes PR11300.

llvm-svn: 143726
 2011-11-04 19:00:29 +00:00
Nick Lewycky
691d7f80c2 Don't emit a directory entry for the value in DW_AT_comp_dir, that is always 
implied by directory index zero.

llvm-svn: 143570
 2011-11-02 20:55:33 +00:00
Nick Lewycky
651475977d Teach our Dwarf emission to use the string pool. 
llvm-svn: 143097
 2011-10-27 06:44:11 +00:00
Nick Lewycky
4aa5a52a80 Reflow lines, fix comments for doxygen style, fix whitespace. No functionality 
change.

llvm-svn: 143074
 2011-10-26 22:55:33 +00:00
Nick Lewycky
d8f16be86a Minor style cleanup, no functionality change. 
llvm-svn: 142307
 2011-10-17 23:27:36 +00:00
Nick Lewycky
c551c1c5f9 Add support for a new extension to the .file directive: 
.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
Eric Christopher
57c57a3260 Add a new wrapper node for a DILexicalBlock that encapsulates it and a 
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
Eric Christopher
d34e1d8bb6 Typo. 
llvm-svn: 141004
 2011-10-03 15:49:16 +00:00
Devang Patel
e4127d626e 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. 
llvm-svn: 138145
 2011-08-19 23:28:12 +00:00
Devang Patel
68d2232bfe Eliminate unnecessary forwarding function. 
llvm-svn: 138006
 2011-08-18 23:17:55 +00:00
Devang Patel
630d8ce36b 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. 
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
Devang Patel
28ad105008 Remove unnecessary version check. 
llvm-svn: 137728
 2011-08-16 17:41:41 +00:00
Devang Patel
00c82827ab Refactor. 
llvm-svn: 137689
 2011-08-15 23:47:24 +00:00
Devang Patel
822410da56 Continue to hoist uses of getCompileUnit() up. The goal is to get rid of uses of getCompileUnit(). 
llvm-svn: 137683
 2011-08-15 23:36:40 +00:00
Devang Patel
e0aa92d509 This is somewhat déjà-vu, but avoid using getCompileUnit() as much as possible. 
llvm-svn: 137668
 2011-08-15 22:24:32 +00:00
Devang Patel
8fe83ecaf3 Refactor. Variables are part of compile unit so let CompileUnit create new variable. 
llvm-svn: 137663
 2011-08-15 22:04:40 +00:00
Devang Patel
f5e3a86ea0 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. 
llvm-svn: 137659
 2011-08-15 21:43:21 +00:00
Devang Patel
9ea2ce9b7b Fix warning. 
llvm-svn: 137658
 2011-08-15 21:35:16 +00:00
Devang Patel
1113107823 Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction. 
llvm-svn: 137656
 2011-08-15 21:24:36 +00:00
Devang Patel
7e0fc7cf86 Simplify mapping to variable from its abstract variable info. 
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
Devang Patel
2b6f546226 Refactor. 
llvm-svn: 137632
 2011-08-15 18:40:16 +00:00
Devang Patel
84b2564244 Refactor. 
llvm-svn: 137631
 2011-08-15 18:35:42 +00:00
Devang Patel
1b73744344 Refactor. Global variables are part of compile unit so let CompileUnit create new global variable. 
llvm-svn: 137621
 2011-08-15 17:57:41 +00:00
Devang Patel
ec9a83977b Refactor. A subprogram is part of compile unit so let CompileUnit construct new subprogram. 
llvm-svn: 137618
 2011-08-15 17:24:54 +00:00
Devang Patel
5901733259 Use ArrayRef. 
llvm-svn: 137485
 2011-08-12 18:10:19 +00:00
Benjamin Kramer
de2c60be28 Plug a memory leak. 
llvm-svn: 137321
 2011-08-11 18:39:28 +00:00
Devang Patel
504551c7bf Stay within 80 columns. 
llvm-svn: 137283
 2011-08-10 23:58:09 +00:00
Devang Patel
1541972a13 Distinguish between two copies of one inlined variable. Take 2. 
llvm-svn: 137253
 2011-08-10 21:50:54 +00:00
Devang Patel
5a1dd582e2 Revert unintentional parts of previous check-in. 
llvm-svn: 137249
 2011-08-10 21:16:49 +00:00
Devang Patel
de73daa98c Start using LexicalScopes utility. No intetional functionality change. 
llvm-svn: 137246
 2011-08-10 20:55:27 +00:00
Devang Patel
bc9a3e12d9 Simplify by creating parent first. 
llvm-svn: 137056
 2011-08-08 18:22:10 +00:00
Chandler Carruth
e833bbd11e Temporarily revert r135528 which distinguishes between two copies of one 
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
Bob Wilson
03c734d202 Some revisions to Devang's change r136759 for merged global debug info. 
llvm-svn: 136802
 2011-08-03 19:42:51 +00:00
Devang Patel
99a2f0d98c Use byte offset, instead of element number, to access merged global. 
llvm-svn: 136759
 2011-08-03 01:25:46 +00:00
Nick Lewycky
cec151e7b6 Fix a lot of typos, improve (but not necessarily fix) grammaros and reflow some 
lines. No functionality change.

llvm-svn: 136458
 2011-07-29 03:49:23 +00:00
Devang Patel
a31c9d991e Remove outdated FIXME comment. 
llvm-svn: 136275
 2011-07-27 22:00:01 +00:00
Devang Patel
e85a416d4e 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. 
llvm-svn: 136196
 2011-07-27 00:34:13 +00:00
Devang Patel
5589e89f0c While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time. 
llvm-svn: 136106
 2011-07-26 18:09:53 +00:00
Devang Patel
bf27de8340 Refactor. 
llvm-svn: 135633
 2011-07-20 23:00:27 +00:00
Devang Patel
284b502be9 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. 
llvm-svn: 135629
 2011-07-20 22:18:50 +00:00
Devang Patel
65afdd27d0 Distinguish between two copies of one inlined variable. 
llvm-svn: 135528
 2011-07-19 22:31:15 +00:00
Devang Patel
647ad13add Use DebugLoc directly to map inlined functions' instructions to respective lexical scope. 
llvm-svn: 135302
 2011-07-15 21:25:44 +00:00
Devang Patel
d539f30c73 Eliminate redundant map. 
llvm-svn: 135278
 2011-07-15 16:38:42 +00:00
Evan Cheng
b43f66dcd3 Reverting r135232. It's causing infinite looping in DbgScope::openInsnRange. 
llvm-svn: 135254
 2011-07-15 06:26:35 +00:00
Devang Patel
7c5092d1c2 Do not get confused by multiple empty lexical scopes inlined at one location. 
llvm-svn: 135232
 2011-07-15 00:30:39 +00:00
Devang Patel
44a684072d Refactor. 
llvm-svn: 135212
 2011-07-14 23:17:49 +00:00
Devang Patel
ccc8ba373c Eliminate redundant LLVMContext argument. 
Improve DbgScope->dump() output.

llvm-svn: 135207
 2011-07-14 22:30:56 +00:00
Devang Patel
39f6e21de3 Simplify. 
llvm-svn: 135127
 2011-07-14 01:52:45 +00:00
Devang Patel
1856a523ea Simplify and delay extracting DebugLoc elements, scope and InlinedAt, as much as possible. 
llvm-svn: 135124
 2011-07-14 01:14:57 +00:00
Devang Patel
cb54f643e9 Simplify. Compile unit check inside hasValidLocation() did not add any value. 
llvm-svn: 135118
 2011-07-14 00:20:24 +00:00
Devang Patel
8d1207dc18 Fix typo in DEBUG message. 
llvm-svn: 135111
 2011-07-14 00:04:53 +00:00
Devang Patel
b9fe59ad12 Add DEBUG messages. 
llvm-svn: 135110
 2011-07-14 00:03:58 +00:00
Devang Patel
31505d2d78 Refactor. 
llvm-svn: 134703
 2011-07-08 17:09:57 +00:00
Devang Patel
756482ca98 Make provision to have floating point constants in .debug_loc expressions. 
llvm-svn: 134702
 2011-07-08 16:49:43 +00:00
Devang Patel
f97af90b4a Add DEBUG message. 
llvm-svn: 134643
 2011-07-07 21:44:42 +00:00
Devang Patel
a30ca05040 Add DEBUG messages. 
llvm-svn: 134572
 2011-07-07 00:14:27 +00:00
Devang Patel
94f4eec7e4 Remove dead code. 
llvm-svn: 134561
 2011-07-06 23:26:18 +00:00
Devang Patel
91fee59b74 Handle debug info for i128 constants. 
llvm-svn: 133821
 2011-06-24 20:46:11 +00:00
Benjamin Kramer
3bd28deb10 Use path API for path concatenation. 
llvm-svn: 132668
 2011-06-05 14:36:47 +00:00
Devang Patel
03708bbb55 A DBG_VALUE that truncates a range does not start another dbg value range. 
llvm-svn: 132433
 2011-06-01 23:00:17 +00:00
Devang Patel
1a3058d727 Do not drop constant values when a variable's content is described using .debug_loc entries. 
llvm-svn: 132427
 2011-06-01 22:03:25 +00:00
Devang Patel
a9f6a46390 Include global types, that are referenced through local variables, in debug_pubtypes list. 
llvm-svn: 132371
 2011-05-31 22:56:51 +00:00
Rafael Espindola
2230168a0f Make size computation less brittle. 
llvm-svn: 132222
 2011-05-27 22:05:41 +00:00
Devang Patel
62a7038a9f Select DW_AT_const_value size based on variable size. 
llvm-svn: 132193
 2011-05-27 16:45:18 +00:00
Devang Patel
5bce258c3d Fix debug info for blocks' variable. 
llvm-svn: 131940
 2011-05-24 00:22:25 +00:00
Devang Patel
8a90970a54 Remove unnecessary comment. 
llvm-svn: 131936
 2011-05-23 23:16:14 +00:00
Devang Patel
344808fbe5 Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode. 
llvm-svn: 131194
 2011-05-11 19:22:19 +00:00
Rafael Espindola
9b3e6a9cb4 Rename DwarfRequiresRelocationForStmtList to 
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

llvm-svn: 131148
 2011-05-10 20:35:05 +00:00
Devang Patel
38193e7550 Do not ignore InlinedAt while walking up scope chain to find subprogram node. 
llvm-svn: 131106
 2011-05-09 22:14:49 +00:00
Devang Patel
188fd17fe4 Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp 
llvm-svn: 130991
 2011-05-06 16:57:54 +00:00
Rafael Espindola
59462d8ae3 Dead code elimination. 
llvm-svn: 130984
 2011-05-06 14:56:22 +00:00
Devang Patel
99147805e4 Remove little used statistical counter. 
llvm-svn: 130955
 2011-05-05 22:00:08 +00:00
Devang Patel
3d0c5dc9fd If debug info for inlined function is missing then handle it gracefully. 
llvm-svn: 130933
 2011-05-05 17:54:26 +00:00
Rafael Espindola
8346c59e6a Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but 
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.

While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.

llvm-svn: 130846
 2011-05-04 17:44:06 +00:00
Devang Patel
a6e69a5541 Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite. 
llvm-svn: 130842
 2011-05-04 16:34:02 +00:00
Devang Patel
3506ad5c7f Even if the subprogram is going to use AT_specification, emit DW_AT_MIPS_linkage_name. This helps gdb and fixes var-path-expr.exp regression reported by gdb testsuite. 
llvm-svn: 130794
 2011-05-03 21:50:34 +00:00
Devang Patel
2d8861a690 If the front end has emitted llvm.dbg.cu and other debug info anchors (clang does it now) then use them directly. This saves one scan of entire module, to collect debug info, which in turns saves few machine cycles at compile time. 
llvm-svn: 130759
 2011-05-03 16:45:22 +00:00
Devang Patel
7d7ac5512a Emit debug info for global variables first. 
This works around a limitation in gdb which is reported by following inherit.exp test failures from gdb testsuite.

gdb.cp/inherit.exp: print g_vB.vB::vb
gdb.cp/inherit.exp: print g_vB.vB::vx
gdb.cp/inherit.exp: print g_vC.vC::vc
gdb.cp/inherit.exp: print g_vC.vC::vx
gdb.cp/inherit.exp: print g_vD.vB::vb
...

llvm-svn: 130702
 2011-05-02 18:19:17 +00:00
Devang Patel
900ceb725b Teach dwarf writer to handle complex address expression for .debug_loc entries. 
This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373
 2011-04-28 02:22:40 +00:00
Devang Patel
42736cb058 Simplify handling of variables with complex address (i.e. blocks variables) 
llvm-svn: 130339
 2011-04-27 22:45:24 +00:00
Devang Patel
3da97b7d34 Rename a local variable. 
llvm-svn: 130171
 2011-04-25 23:05:21 +00:00
Devang Patel
e28211b031 Rename a method to match what it really does. 
s/addVariableAddress/addFrameVariableAddress/g

llvm-svn: 130170
 2011-04-25 23:02:17 +00:00
Devang Patel
b1b33d6569 Do not drop a variable's complex address if it is not based on frame base. 
Observed this while reading code, so I do not have a test case handy here.

llvm-svn: 130167
 2011-04-25 22:52:55 +00:00
Devang Patel
929bbb6bf9 Let front-end tie subprogram declaration with subprogram definition directly. 
llvm-svn: 130028
 2011-04-22 23:10:17 +00:00
Devang Patel
6aac901f77 Do not leak argument's DbgVariables. 
llvm-svn: 130004
 2011-04-22 18:09:57 +00:00
Devang Patel
4f25432e4e Refactor. 
llvm-svn: 129938
 2011-04-21 21:07:35 +00:00
Devang Patel
a31b73427e Add comment in output stream. 
llvm-svn: 129921
 2011-04-21 17:50:24 +00:00
Devang Patel
7220c1a021 Reduce clutter in asm output. Do not emit source location as comment for each instruction. 
llvm-svn: 129715
 2011-04-18 20:26:49 +00:00
Chris Lattner
0304b82f80 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
Devang Patel
43cbfe2ba7 Remove extra bytes that were added for gdb. We do not have good poiner to understand actual reason behind this fixme. Spot checking suggest that newer gdb does not need this. 
llvm-svn: 129461
 2011-04-13 19:41:17 +00:00
Devang Patel
5f8111e1ca Simplify. There is no need to use static variable. 
llvm-svn: 129406
 2011-04-12 23:10:47 +00:00
Devang Patel
f288e23b3f This mechanical patch moves type handling into CompileUnit from DwarfDebug. In case of multiple compile unit in one object file, each compile unit is responsible for its own set of type entries anyway. This refactoring makes this obvious. 
llvm-svn: 129402
 2011-04-12 22:53:02 +00:00
Devang Patel
6c1785d527 Refactor CompileUnit into a separate header. 
llvm-svn: 129367
 2011-04-12 17:40:32 +00:00
Devang Patel
21b6ef4320 Simplify array bound checks and clarify comments. One element array can have same non-zero number as lower bound as well as upper bound. 
llvm-svn: 129170
 2011-04-08 23:39:38 +00:00
Devang Patel
39ac307002 Do not emit DW_AT_upper_bound and DW_AT_lower_bound for unbouded array. 
If lower bound is more then upper bound then consider it is an unbounded array.
An array is unbounded if non-zero lower bound is same as upper bound.
If lower bound and upper bound are zero than array has one element.

llvm-svn: 129156
 2011-04-08 21:55:10 +00:00
Devang Patel
03d0891c10 Add support to encode function's template parameters. 
llvm-svn: 128947
 2011-04-05 22:52:06 +00:00
Devang Patel
af7f5f4ada Refactor. 
llvm-svn: 128929
 2011-04-05 21:08:24 +00:00
Devang Patel
2be08abc94 Do not emit empty name. 
llvm-svn: 128914
 2011-04-05 20:14:13 +00:00
Jakob Stoklund Olesen
446412de55 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
Jakob Stoklund Olesen
ab0501221b 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