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605 Commits

Author SHA1 Message Date
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