Commit Graph

600 Commits

Author SHA1 Message Date
Eric Christopher 7772531567 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 7524fe4551 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 66b0721014 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 35145f830a Minimal changes for LLVM to compile under VS11.
llvm-svn: 151849
2012-03-01 22:42:52 +00:00
Eric Christopher 3a2656b394 Add the source language into the compile unit.
llvm-svn: 151143
2012-02-22 08:46:13 +00:00
Craig Topper ee4dab5f1f Convert assert(0) to llvm_unreachable
llvm-svn: 149816
2012-02-05 08:31:47 +00:00
Eric Christopher 3e8ccc2000 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 090fcc1a10 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 21bde87bf3 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 365d083585 Extraneous whitespace and 80-col.
llvm-svn: 146780
2011-12-16 23:42:31 +00:00
Eric Christopher 8dda5d0f06 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 50f02cb21b 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 e7cc8bff82 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 79278365d3 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 66b37db641 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 d9843b34e6 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 966ed1b698 Add comments.
llvm-svn: 144194
2011-11-09 18:16:11 +00:00
Benjamin Kramer 148db36263 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 5223a57533 Remove the pubnames section, no one consumes it.
llvm-svn: 144169
2011-11-09 05:24:07 +00:00
Eric Christopher 08a558eeef 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 970771c0e8 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 5139dadd50 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 988ac00abd Use StringRef::startswith to do some string comparisons.
llvm-svn: 143982
2011-11-07 18:53:23 +00:00
Eric Christopher cc979f9ae6 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 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
Eric Christopher 6abc9c5aaa Fix up comment.
llvm-svn: 143919
2011-11-07 09:18:35 +00:00
Rafael Espindola 6cf4e830ce 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 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
Nick Lewycky 654f5ce812 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 479a8fe75e Minor style cleanup, no functionality change.
llvm-svn: 142307
2011-10-17 23:27:36 +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
Eric Christopher 6647b83087 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 f84354bfb1 Typo.
llvm-svn: 141004
2011-10-03 15:49:16 +00:00
Devang Patel 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.
llvm-svn: 138145
2011-08-19 23:28:12 +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 927840458e Remove unnecessary version check.
llvm-svn: 137728
2011-08-16 17:41:41 +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