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267 Commits

Author SHA1 Message Date
Eric Christopher
c44e973a36 Revert "Add some support for dealing with an object pointer on arguments." 
This should be done on the subprogram, not the variable itself.

llvm-svn: 163734
 2012-09-12 18:42:31 +00:00
Eric Christopher
97c0fdd116 Add some support for dealing with an object pointer on arguments. 
Part of rdar://9797999

llvm-svn: 163667
 2012-09-12 00:26:55 +00:00
Eric Christopher
e8a7b1b741 80-col fixup. 
llvm-svn: 163569
 2012-09-10 23:34:03 +00:00
Eric Christopher
20b76a77c3 Turn these two options in to trinary state so that they can be 
turned on and off separate from the platform if you're on darwin.

llvm-svn: 162487
 2012-08-23 22:36:40 +00:00
Eric Christopher
4977f214d7 Add a flag to DwarfDebug to allow it to communicate whether or not 
we're using the darwin old gdb compat mode for emitting dwarf.

llvm-svn: 162486
 2012-08-23 22:36:36 +00:00
Eric Christopher
b1b9451337 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
86ca9f9e11 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
Alexey Samsonov
6e7e6b646b Cleanup in DwarfDebug - fix a typo and remove two unused functions 
llvm-svn: 159433
 2012-06-29 16:04:14 +00:00
Bill Wendling
e38859dc8e 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
Benjamin Kramer
0748008df5 Allocate the contents of DwarfDebug's StringMaps in a single big BumpPtrAllocator. 
llvm-svn: 158265
 2012-06-09 10:34:15 +00:00
Benjamin Kramer
71b197306e 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
Eric Christopher
e19f4cd066 Grammar. 
llvm-svn: 151874
 2012-03-02 01:57:55 +00:00
Chris Lattner
88fce10928 tidy up forward declarations. 
llvm-svn: 149078
 2012-01-26 20:44:57 +00:00
Eric Christopher
5223a57533 Remove the pubnames section, no one consumes it. 
llvm-svn: 144169
 2011-11-09 05:24:07 +00:00
Eric Christopher
8c7505f258 Remove unnecessary addition to API. Replace with something much simpler. 
llvm-svn: 143925
 2011-11-07 09:38:42 +00:00
Eric Christopher
4996c70034 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
a7b6189071 Expose a way to get the beginning of the dwarf string section. 
llvm-svn: 143920
 2011-11-07 09:18:38 +00:00
Nick Lewycky
d1ee7f8cf1 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
d59c0cac6c Teach our Dwarf emission to use the string pool. 
llvm-svn: 143097
 2011-10-27 06:44:11 +00:00
Eric Christopher
fe15841044 Remove unused forward decl. 
llvm-svn: 142892
 2011-10-25 00:55:35 +00:00
Nick Lewycky
ac4c1860a3 Missed a spot! 
llvm-svn: 142436
 2011-10-18 22:40:18 +00:00
Nick Lewycky
5ca33ac926 Fix some typo/formatting issues. No functionality change. 
llvm-svn: 142435
 2011-10-18 22:39:43 +00:00
Nick Lewycky
40f8f2ff24 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
Devang Patel
0ecbcbd12c Eliminate unnecessary forwarding function. 
llvm-svn: 138006
 2011-08-18 23:17:55 +00:00
Devang Patel
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. 
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
07bb9eea33 Refactor. 
llvm-svn: 137689
 2011-08-15 23:47:24 +00:00
Devang Patel
1f4f98d664 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
d2dfc5ec02 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
3acc70e536 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
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. 
llvm-svn: 137659
 2011-08-15 21:43:21 +00:00
Devang Patel
900d97719b Fix warning. 
llvm-svn: 137658
 2011-08-15 21:35:16 +00:00
Devang Patel
3e4a965519 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
99819b527d 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
d7d80aadd1 Refactor. 
llvm-svn: 137632
 2011-08-15 18:40:16 +00:00
Devang Patel
6e4d2c9fb7 Refactor. 
llvm-svn: 137631
 2011-08-15 18:35:42 +00:00
Devang Patel
895437142a 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
7e62302fae Start using LexicalScopes utility. No intetional functionality change. 
llvm-svn: 137246
 2011-08-10 20:55:27 +00:00
Devang Patel
ddfe66e948 Refactor. 
llvm-svn: 135633
 2011-07-20 23:00:27 +00:00
Evan Cheng
67c033e6b8 Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for 
better location welcome).

llvm-svn: 135438
 2011-07-18 22:29:13 +00:00
Devang Patel
b7cc06366d 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
f5f352dda5 Eliminate redundant map. 
llvm-svn: 135278
 2011-07-15 16:38:42 +00:00
Devang Patel
4771159f9f Refactor. 
llvm-svn: 135212
 2011-07-14 23:17:49 +00:00
Devang Patel
1f9913fdb2 Eliminate redundant LLVMContext argument. 
Improve DbgScope->dump() output.

llvm-svn: 135207
 2011-07-14 22:30:56 +00:00
Devang Patel
07d61edc30 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
ed9fd45740 Make provision to have floating point constants in .debug_loc expressions. 
llvm-svn: 134702
 2011-07-08 16:49:43 +00:00
Devang Patel
324f843107 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
34a6620748 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
a716096677 Dead code elimination. 
llvm-svn: 130984
 2011-05-06 14:56:22 +00:00
Devang Patel
3e021533cd 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
f20c4f715f 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
4547a9e658 Remove dead typedef. 
llvm-svn: 129368
 2011-04-12 17:43:12 +00:00
Devang Patel
d4e20eacf0 Refactor. 
llvm-svn: 128929
 2011-04-05 21:08:24 +00:00
Devang Patel
e0cbe31ebb Remove dead code. 
llvm-svn: 128639
 2011-03-31 16:53:49 +00:00
Jakob Stoklund Olesen
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
Jakob Stoklund Olesen
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
Devang Patel
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
Jakob Stoklund Olesen
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
Andrew Trick
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
Jakob Stoklund Olesen
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
Devang Patel
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
Cameron Zwarich
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
Devang Patel
b037383a35 Enable DebugInfo support for COFF object files. 
Patch by Nathan Jeffords!

llvm-svn: 126425
 2011-02-24 21:04:00 +00:00
Devang Patel
116a9d7c38 Merge .debug_loc entries whenever possible to reduce debug_loc size. 
llvm-svn: 124904
 2011-02-04 22:57:18 +00:00
Devang Patel
be933b470a Add support to describe template value parameter in debug info. 
llvm-svn: 124755
 2011-02-02 22:35:53 +00:00
Devang Patel
3a9e65efb6 Add support to describe template parameter type in debug info. 
llvm-svn: 124752
 2011-02-02 21:38:25 +00:00
Devang Patel
70eb982843 Emit 128 bit constant. 
This fixes PR 8913 crash.

llvm-svn: 122971
 2011-01-06 21:39:25 +00:00
Rafael Espindola
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
Devang Patel
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
Devang Patel
b5694e702c s/beginScope/beginInstruction/g 
s/endScope/endInstruction/g

llvm-svn: 117376
 2010-10-26 17:49:02 +00:00
Devang Patel
185051cb8e Remove dead argument. 
llvm-svn: 114920
 2010-09-27 23:15:27 +00:00
Benjamin Kramer
65550d7cea Fix linux/msvc build, move include. 
llvm-svn: 113776
 2010-09-13 20:04:49 +00:00
Devang Patel
2cfc3af181 Simplify. 
llvm-svn: 112583
 2010-08-31 06:11:28 +00:00
Devang Patel
4a213870db Revert r107202. It is not adding any value. 
llvm-svn: 111870
 2010-08-24 00:06:12 +00:00
Devang Patel
18ba0b4ac3 Simplify. 
llvm-svn: 110653
 2010-08-10 04:12:17 +00:00
Devang Patel
b1e07b3f2a Drop "const". It does not add value here. 
llvm-svn: 110652
 2010-08-10 04:09:06 +00:00
Devang Patel
469c12d254 Do not include file static variable in pubnames list. 
Refactor and simplify code to avoid redundant checks.

llvm-svn: 110642
 2010-08-10 01:37:23 +00:00
Devang Patel
394a69ed52 Undo accidental commit. 
llvm-svn: 110623
 2010-08-09 23:28:52 +00:00
Devang Patel
4eda9abddb Simplify. Avoid redundant checks. 
llvm-svn: 110621
 2010-08-09 23:26:06 +00:00
Devang Patel
6d9f9feb2b Refactoring. Update DbgVarible to handle queries itself. 
llvm-svn: 110600
 2010-08-09 21:01:39 +00:00
Devang Patel
b6511a36b4 It is ok, and convenient, to pass descriptors by value. 
llvm-svn: 110590
 2010-08-09 20:20:05 +00:00
Devang Patel
9c160e1213 Reuse DIEInteger for 1. This is frequently used while emitting an attribute using dwarf::DW_FORM_flag form. 
llvm-svn: 107903
 2010-07-08 20:10:35 +00:00
Devang Patel
a37a95ea2f One MDNode may be used to create regular DIE as well as abstract DIE. 
Keep track of abstract subprogram DIEs. 

llvm-svn: 107822
 2010-07-07 22:20:57 +00:00
Devang Patel
24bc1b5b2f Do not hardcode DW_AT_stmt_list value. 
Inspired by Artur Pietrek.

llvm-svn: 107202
 2010-06-29 20:17:53 +00:00
Devang Patel
f3b2db68c6 Preserve deleted function's local variables' debug info. 
Radar 8122864.

llvm-svn: 107027
 2010-06-28 18:25:03 +00:00
Devang Patel
fb6f22f010 Remove dead code. 
llvm-svn: 106990
 2010-06-28 05:59:13 +00:00
Devang Patel
5c0f85c7dd Collect debug info for optimized variables of inlined functions. 
llvm-svn: 106895
 2010-06-25 22:07:34 +00:00
Devang Patel
21ccf05b4c Use local small vector. 
llvm-svn: 105332
 2010-06-02 16:42:51 +00:00
Devang Patel
002d54ddc9 Identify instructions, that needs a label to mark debug info entity, in advance. This simplifies beginScope(). 
llvm-svn: 104720
 2010-05-26 19:37:24 +00:00
Devang Patel
95fcc96752 Remove dead code. 
llvm-svn: 104706
 2010-05-26 17:42:50 +00:00
Devang Patel
9fc11706e3 First cut at supporting .debug_loc section. 
This is used to track variable information.

llvm-svn: 104649
 2010-05-25 23:40:22 +00:00
Devang Patel
490c8ab76d Refactor. 
llvm-svn: 104265
 2010-05-20 19:57:06 +00:00
Devang Patel
e1c53f29d3 Split DbgVariable. Eventually, variable info will be communicated through frame index, or DBG_VALUE instruction, or collection of DBG_VALUE instructions. Plus each DbgVariable may not need a label. 
llvm-svn: 104233
 2010-05-20 16:36:41 +00:00
Devang Patel
a08130864e Revert r104165. 
llvm-svn: 104172
 2010-05-19 21:58:28 +00:00
Devang Patel
0fe341e2e2 There is no need to maintain InsnsBeginScopeSet separately. 
llvm-svn: 104165
 2010-05-19 21:26:53 +00:00
Devang Patel
e0a94bfe9f Add support to preserve type info for the variables that are removed by the optimizer. 
llvm-svn: 103798
 2010-05-14 21:01:35 +00:00
Devang Patel
1a0df9a80e Enable multiple Compile Units in one module. 
This means now 'llvm-ld a.bc b.bc' will preserve debug info appropriately.

llvm-svn: 103439
 2010-05-10 22:49:55 +00:00
Devang Patel
cbe7a8508a Remove DIGlobal. 
llvm-svn: 103325
 2010-05-07 23:19:07 +00:00
Devang Patel
32cc43c242 Wrap const MDNode * inside DIDescriptor. 
llvm-svn: 103295
 2010-05-07 20:54:48 +00:00
Devang Patel
173b2b9d05 Refactor. 
llvm-svn: 102481
 2010-04-28 01:03:09 +00:00
Devang Patel
6c74a872a8 Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges. 
This patch fixes bug (PR6894) introduced by previous version of this patch.

llvm-svn: 102454
 2010-04-27 19:46:33 +00:00