e1c874aa70
Add new files to cmake.
...
llvm-svn: 143924
2011-11-07 09:37:06 +00:00
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
6e47204b0c
Add a new dwarf accelerator table prototype with the goal of replacing
...
the pubnames and pubtypes tables. LLDB can currently use this format
and a full spec is forthcoming and submission for standardization is planned.
A basic summary:
The dwarf accelerator tables are an indirect hash table optimized
for null lookup rather than access to known data. They are output into
an on-disk format that looks like this:
.-------------.
| HEADER |
|-------------|
| BUCKETS |
|-------------|
| HASHES |
|-------------|
| OFFSETS |
|-------------|
| DATA |
`-------------'
where the header contains a magic number, version, type of hash function,
the number of buckets, total number of hashes, and room for a special
struct of data and the length of that struct.
The buckets contain an index (e.g. 6) into the hashes array. The hashes
section contains all of the 32-bit hash values in contiguous memory, and
the offsets contain the offset into the data area for the particular
hash.
For a lookup example, we could hash a function name and take it modulo the
number of buckets giving us our bucket. From there we take the bucket value
as an index into the hashes table and look at each successive hash as long
as the hash value is still the same modulo result (bucket value) as earlier.
If we have a match we look at that same entry in the offsets table and
grab the offset in the data for our final match.
llvm-svn: 143921
2011-11-07 09:18:42 +00:00
a7b6189071
Expose a way to get the beginning of the dwarf string section.
...
llvm-svn: 143920
2011-11-07 09:18:38 +00:00
6abc9c5aaa
Fix up comment.
...
llvm-svn: 143919
2011-11-07 09:18:35 +00:00
2b4f77350d
Typo.
...
llvm-svn: 143918
2011-11-07 09:18:32 +00:00
c74798d5cf
Add an option to pad an uleb128 to MCObjectWriter and remove the uleb128 encoding from the DWARF asm printer.
...
As a side effect we now print dwarf ulebs with .ascii directives.
llvm-svn: 143809
2011-11-05 11:52:44 +00:00
f3da529028
Add more PRI.64 macros for MSVC and use them throughout the codebase.
...
llvm-svn: 143799
2011-11-05 08:57:40 +00:00
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
bf9bba47a1
build: Add initial cut at LLVMBuild.txt files.
...
llvm-svn: 143634
2011-11-03 18:53:17 +00:00
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
29ccdd8207
Dwarf: [PR11022] Fix emitting DW_AT_const_value(>i64), to be host-endian-neutral.
...
Don't assume APInt::getRawData() would hold target-aware endianness nor host-compliant endianness. rawdata[0] holds most lower i64, even on big endian host.
FIXME: Add a testcase for big endian target.
FIXME: Ditto on CompileUnit::addConstantFPValue() ?
llvm-svn: 143194
2011-10-28 14:12:22 +00:00
cc64ae140d
Always use the string pool, even when it makes the .o larger. This may help
...
tools that read the debug info in the .o files by making the DIE sizes more
consistent.
llvm-svn: 143186
2011-10-28 05:29:47 +00:00
d59c0cac6c
Teach our Dwarf emission to use the string pool.
...
llvm-svn: 143097
2011-10-27 06:44:11 +00:00
654f5ce812
Reflow lines, fix comments for doxygen style, fix whitespace. No functionality
...
change.
llvm-svn: 143074
2011-10-26 22:55:33 +00:00
d75675ab3b
Remove dead enum value. There is no DIESectionOffset.
...
llvm-svn: 142912
2011-10-25 07:05:26 +00:00
fe15841044
Remove unused forward decl.
...
llvm-svn: 142892
2011-10-25 00:55:35 +00:00
ac4c1860a3
Missed a spot!
...
llvm-svn: 142436
2011-10-18 22:40:18 +00:00
5ca33ac926
Fix some typo/formatting issues. No functionality change.
...
llvm-svn: 142435
2011-10-18 22:39:43 +00:00
479a8fe75e
Minor style cleanup, no functionality change.
...
llvm-svn: 142307
2011-10-17 23:27:36 +00:00
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
cb6b02a086
Twinify better.
...
llvm-svn: 142139
2011-10-16 15:46:29 +00:00
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
0ca562ec4c
Teach the MC to output code/data region marker labels in MachO and ELF modes. These are used by disassemblers to provide better disassembly, particularly on targets like ARM Thumb that like to intermingle data in the TEXT segment.
...
llvm-svn: 141135
2011-10-04 23:26:17 +00:00
cead033ced
Whitespace.
...
llvm-svn: 141005
2011-10-03 15:49:20 +00:00
f84354bfb1
Typo.
...
llvm-svn: 141004
2011-10-03 15:49:16 +00:00
cac86805bf
Place this bracket according to the LLVM style.
...
llvm-svn: 140784
2011-09-29 16:01:46 +00:00
2e67937f76
A typeid of zero means a cleanup, not a catch. This case occurs
...
when there is both a catch and a cleanup. Correct the comment.
llvm-svn: 140686
2011-09-28 09:13:02 +00:00
0ceb8cadd2
Fix emission of debug data for global variables. getContext() on DIGlobalVariables is not valid any more.
...
llvm-svn: 140539
2011-09-26 17:40:42 +00:00
5e6b65cf0d
Do not unnecessarily use AT_specification DIE because it does not add any value.
...
Few weeks ago, llvm completely inverted the debug info graph. Earlier each debug info node used to keep track of its compile unit, now compile unit keeps track of important nodes. One impact of this change is that the global variable's do not have any context, which should be checked before deciding to use AT_specification DIE.
llvm-svn: 140282
2011-09-21 23:41:11 +00:00
098f5a2911
Tidy up. Whitepsace.
...
llvm-svn: 140275
2011-09-21 21:36:53 +00:00
04d6d47865
Add support to emit debug info for C++0x nullptr type.
...
llvm-svn: 139751
2011-09-14 23:13:28 +00:00
5c04c62765
Darwin wants ctors/dtors to be ordered the other way round to linux.
...
llvm-svn: 139015
2011-09-02 18:07:19 +00:00
6397051ece
Don't drop alignment info on local common symbols.
...
- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm
Based on a patch by NAKAMURA Takumi.
Fixes PR9337, PR9483 and PR10128.
llvm-svn: 138976
2011-09-01 23:04:27 +00:00
7df940d660
Fix Size Typing
...
Stores sizes as uint64_t to avoid possible truncation.
llvm-svn: 138901
2011-08-31 21:34:20 +00:00
cdef71f4f3
Compress Repeated Byte Output
...
Emit a repeated sequence of bytes using .zero. This saves an enormous
amount of asm file space for certain programs.
llvm-svn: 138864
2011-08-31 17:30:56 +00:00
4d63542b82
Fix PR5329: pay attention to constructor/destructor priority
...
when outputting them. With this, the entire LLVM testsuite
passes when built with dragonegg.
llvm-svn: 138724
2011-08-28 13:17:22 +00:00
2bb4035707
Move TargetRegistry and TargetSelect from Target to Support where they belong.
...
These are strictly utilities for registering targets and components.
llvm-svn: 138450
2011-08-24 18:08:43 +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.
...
llvm-svn: 138145
2011-08-19 23:28:12 +00:00
c8d4065781
add the comments of each declaration follow it, making it easier to read and compare to GCC's result.
...
llvm-svn: 138009
2011-08-18 23:43:14 +00:00
0ecbcbd12c
Eliminate unnecessary forwarding function.
...
llvm-svn: 138006
2011-08-18 23:17:55 +00:00
a6576a146d
Add new DIE into the map asap.
...
llvm-svn: 137998
2011-08-18 22:21:50 +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.
...
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
345768c9ff
Remove unused Target argument from AsmParser construction methods.
...
The argument is unused, and is a layering violation in any case.
llvm-svn: 137735
2011-08-16 18:33:49 +00:00
927840458e
Remove unnecessary version check.
...
llvm-svn: 137728
2011-08-16 17:41:41 +00:00
07bb9eea33
Refactor.
...
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().
...
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.
...
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.
...
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.
...
llvm-svn: 137659
2011-08-15 21:43:21 +00:00
900d97719b
Fix warning.
...
llvm-svn: 137658
2011-08-15 21:35:16 +00:00
3e4a965519
Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction.
...
llvm-svn: 137656
2011-08-15 21:24:36 +00:00
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
d7d80aadd1
Refactor.
...
llvm-svn: 137632
2011-08-15 18:40:16 +00:00
6e4d2c9fb7
Refactor.
...
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.
...
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.
...
llvm-svn: 137618
2011-08-15 17:24:54 +00:00
444034783e
Use ArrayRef.
...
llvm-svn: 137485
2011-08-12 18:10:19 +00:00
fa7e6a54b1
Plug a memory leak.
...
llvm-svn: 137321
2011-08-11 18:39:28 +00:00
784077eb57
Stay within 80 columns.
...
llvm-svn: 137283
2011-08-10 23:58:09 +00:00
bb23a4a9a5
Distinguish between two copies of one inlined variable. Take 2.
...
llvm-svn: 137253
2011-08-10 21:50:54 +00:00
e30746c844
Revert unintentional parts of previous check-in.
...
llvm-svn: 137249
2011-08-10 21:16:49 +00:00
7e62302fae
Start using LexicalScopes utility. No intetional functionality change.
...
llvm-svn: 137246
2011-08-10 20:55:27 +00:00
fee7cedbc9
Simplify by creating parent first.
...
llvm-svn: 137056
2011-08-08 18:22:10 +00:00
81b7e11c89
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
0a8d5c6047
Some revisions to Devang's change r136759 for merged global debug info.
...
llvm-svn: 136802
2011-08-03 19:42:51 +00:00
dc9cbaaf23
Use byte offset, instead of element number, to access merged global.
...
llvm-svn: 136759
2011-08-03 01:25:46 +00:00
8dfee5f6bf
Remove an unnecessary cast.
...
llvm-svn: 136609
2011-08-01 12:27:15 +00:00
019d255d3e
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
9d7feab3e0
Rewrite the CMake build to use explicit dependencies between libraries,
...
specified in the same file that the library itself is created. This is
more idiomatic for CMake builds, and also allows us to correctly specify
dependencies that are missed due to bugs in the GenLibDeps perl script,
or change from compiler to compiler. On Linux, this returns CMake to
a place where it can relably rebuild several targets of LLVM.
I have tried not to change the dependencies from the ones in the current
auto-generated file. The only places I've really diverged are in places
where I was seeing link failures, and added a dependency. The goal of
this patch is not to start changing the dependencies, merely to move
them into the correct location, and an explicit form that we can control
and change when necessary.
This also removes a serialization point in the build because we don't
have to scan all the libraries before we begin building various tools.
We no longer have a step of the build that regenerates a file inside the
source tree. A few other associated cleanups fall out of this.
This isn't really finished yet though. After talking to dgregor he urged
switching to a single CMake macro to construct libraries with both
sources and dependencies in the arguments. Migrating from the two macros
to that style will be a follow-up patch.
Also, llvm-config is still generated with GenLibDeps.pl, which means it
still has slightly buggy dependencies. The internal CMake
'llvm-config-like' macro uses the correct explicitly specified
dependencies however. A future patch will switch llvm-config generation
(when using CMake) to be based on these deps as well.
This may well break Windows. I'm getting a machine set up now to dig
into any failures there. If anyone can chime in with problems they see
or ideas of how to solve them for Windows, much appreciated.
llvm-svn: 136433
2011-07-29 00:14:25 +00:00
53dc616170
Remove outdated FIXME comment.
...
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.
...
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.
...
llvm-svn: 136106
2011-07-26 18:09:53 +00:00
1142444565
Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer; rename createAsmLexer to createMCAsmLexer and createAsmParser to createMCAsmParser.
...
llvm-svn: 136027
2011-07-26 00:24:13 +00:00
f2596bc62a
Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
...
llvm-svn: 135833
2011-07-23 00:45:41 +00:00
ddfe66e948
Refactor.
...
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.
...
llvm-svn: 135629
2011-07-20 22:18:50 +00:00
bcd50a10d5
While emitting constant value, look through derived type and use underlying basic type to determine size and signness of the constant value.
...
llvm-svn: 135627
2011-07-20 21:57:04 +00:00
bbf3b0de8b
Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.
...
There is still a bit more refactoring left to do in Targets. But we are now very
close to fixing all the layering issues in MC.
llvm-svn: 135611
2011-07-20 19:50:42 +00:00
76792992d6
Add MCObjectFileInfo and sink the MCSections initialization code from
...
TargetLoweringObjectFileImpl down to MCObjectFileInfo.
TargetAsmInfo is done to one last method. It's *almost* gone!
llvm-svn: 135569
2011-07-20 05:58:47 +00:00
a59b24b090
Distinguish between two copies of one inlined variable.
...
llvm-svn: 135528
2011-07-19 22:31:15 +00:00
bf904773bb
Convert TargetData::getIndexedOffset to use ArrayRef.
...
llvm-svn: 135478
2011-07-19 14:01:37 +00:00
b20453faae
Add a frame with the compact unwind encoding if it exists.
...
llvm-svn: 135450
2011-07-19 00:02:51 +00:00
67c033e6b8
Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for
...
better location welcome).
llvm-svn: 135438
2011-07-18 22:29:13 +00:00
229907cd11
land David Blaikie's patch to de-constify Type, with a few tweaks.
...
llvm-svn: 135375
2011-07-18 04:54:35 +00:00
b7cc06366d
Use DebugLoc directly to map inlined functions' instructions to respective lexical scope.
...
llvm-svn: 135302
2011-07-15 21:25:44 +00:00
f5f352dda5
Eliminate redundant map.
...
llvm-svn: 135278
2011-07-15 16:38:42 +00:00
b46f3e24ba
Reverting r135232. It's causing infinite looping in DbgScope::openInsnRange.
...
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.
...
llvm-svn: 135232
2011-07-15 00:30:39 +00:00
4771159f9f
Refactor.
...
llvm-svn: 135212
2011-07-14 23:17:49 +00:00
1f9913fdb2
Eliminate redundant LLVMContext argument.
...
Improve DbgScope->dump() output.
llvm-svn: 135207
2011-07-14 22:30:56 +00:00
d5234bbced
Simplify.
...
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.
...
llvm-svn: 135124
2011-07-14 01:14:57 +00:00
e07ebe32bf
Simplify. Compile unit check inside hasValidLocation() did not add any value.
...
llvm-svn: 135118
2011-07-14 00:20:24 +00:00
a9195bcff0
Fix typo in DEBUG message.
...
llvm-svn: 135111
2011-07-14 00:04:53 +00:00
2cce0d103d
Add DEBUG messages.
...
llvm-svn: 135110
2011-07-14 00:03:58 +00:00
91111d2706
Change createAsmParser to take a MCSubtargetInfo instead of triple,
...
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.
llvm-svn: 134795
2011-07-09 05:47:46 +00:00
2442a89eb9
Refactor.
...
llvm-svn: 134703
2011-07-08 17:09:57 +00:00
ed9fd45740
Make provision to have floating point constants in .debug_loc expressions.
...
llvm-svn: 134702
2011-07-08 16:49:43 +00:00
4d1ca96bfc
Eliminate asm parser's dependency on TargetMachine:
...
- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
to generate asm matcher subtarget feature queries. e.g.
"ModeThumb,FeatureThumb2" is translated to
"(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".
llvm-svn: 134678
2011-07-08 01:53:10 +00:00
53b050aec6
Add DEBUG message.
...
llvm-svn: 134643
2011-07-07 21:44:42 +00:00
b7a328ed27
Add DEBUG messages.
...
llvm-svn: 134572
2011-07-07 00:14:27 +00:00
92ca8fc927
Remove dead code.
...
llvm-svn: 134561
2011-07-06 23:26:18 +00:00
f071d72c44
Handle debug info for i128 constants.
...
llvm-svn: 133821
2011-06-24 20:46:11 +00:00
6208a2fd66
Emit trailing padding on constant vectors when TargetData says that the vector
...
is larger than the sum of the elements (including per-element padding).
llvm-svn: 133631
2011-06-22 18:55:03 +00:00
ddec6838a9
Add verbose EH table printing to SjLj exception tables.
...
llvm-svn: 133561
2011-06-21 22:40:24 +00:00
a8339eb0d0
Improve the comment printing for the EH table. This gives a much more detailed
...
explanation of what the EH table describes.
llvm-svn: 133559
2011-06-21 22:30:20 +00:00
6002068c13
Fix a FIXME by making GlobalVariable::getInitializer() return a
...
const Constant *.
llvm-svn: 133400
2011-06-19 18:37:11 +00:00
ab20567227
Handle jump tables. Test to follow soon.
...
llvm-svn: 133083
2011-06-15 21:00:28 +00:00
8a3264ad48
Revert r133004 ; it's breaking nightly tests.
...
llvm-svn: 133007
2011-06-14 19:30:33 +00:00
5e85158321
Partial revert of 132882.
...
Dan noted that this would work on the case shown on the commit message. I think
the case that was failing was a bb ending with a redundant conditional jump:
...
jne foo
foo:
...
I was unable to find any such case in the tests or in a debug build of clang,
so I will revert this part of the patch and watch the bots.
llvm-svn: 133004
2011-06-14 18:12:31 +00:00
844485af13
Implement Jakob's suggestion on how to detect fall thought without calling
...
AnalyzeBranch.
llvm-svn: 132981
2011-06-14 06:08:32 +00:00
2f3c2fe7c5
Really fix the fall-through logic.
...
Add a triple to the tests.
llvm-svn: 132885
2011-06-12 05:57:01 +00:00
653a07206d
Fix silly bug I introduce in the previous commit. Fixes debug builds.
...
llvm-svn: 132883
2011-06-12 05:26:32 +00:00
defd4b0875
AnalyzeBranch doesn't change which successors a bb has, just the order
...
we try to branch to them.
Before we were creating successor lists with duplicated entries. Fixing that
found a bug in isBlockOnlyReachableByFallthrough that would causes it to
return the wrong answer for
-----------
...
jne foo
jmp bar
foo:
----------
llvm-svn: 132882
2011-06-12 03:20:32 +00:00
b90a43d266
Ensure that EmitGlobalVariable is correctly differentiating between declarations
...
and definitions when emitting global variables. This was causing global
declarations to be emitted as if they were definitions.
Fixes <rdar://problem/9429892>.
llvm-svn: 132825
2011-06-10 00:53:15 +00:00
440c3b7306
Use path API for path concatenation.
...
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.
...
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.
...
llvm-svn: 132427
2011-06-01 22:03:25 +00:00
562c74284f
Incomplete type may not have corresponding DIE, so do not check DIEEntry eagerly.
...
llvm-svn: 132377
2011-06-01 00:23:24 +00:00
1cb8ab456c
Refactor.
...
llvm-svn: 132373
2011-05-31 23:30:30 +00:00
e9853f25ad
Include global types, that are referenced through local variables, in debug_pubtypes list.
...
llvm-svn: 132371
2011-05-31 22:56:51 +00:00
a575226fd8
Emit the handler's data area. For GCC-style exceptions under Win64, the
...
handler's data area starts with a 4-byte reference to the personality
function, followed by the DWARF LSDA.
llvm-svn: 132302
2011-05-30 00:13:34 +00:00
b025724b46
When generating against the Win64 EH scheme, set the handler to the GCC-specific
...
handler.
At this moment, only GCC-style exceptions are supported. Other kinds
of exceptions, including "traditional" SEH and Microsoft Visual C++ exceptions,
need more work--and an compiler exception model that isn't specific to
GCC-style exceptions!
In particular, I imagine that it would be possible to mix "traditional" SEH
with GCC-style EH or Microsoft C++ EH. Currently LLVM has no way (beyond some
target-specific defaults and whole-module compiler switches) of knowing which
scheme to use when.
llvm-svn: 132283
2011-05-29 04:28:35 +00:00
5638b9f01e
When generating code for Win64 EH, emit StartProc and EndProc directives.
...
llvm-svn: 132250
2011-05-28 04:21:04 +00:00
8816bbc02d
Select DW_AT_const_value size based on global variable size.
...
llvm-svn: 132239
2011-05-28 00:39:18 +00:00
836f7db2cc
Fix the root cause of the bootstrap failure:
...
There was no way to check if a given register/mode pair was valid. We now return
an error code (-2) instead of asserting. If anyone thinks that an assert
at this point is really needed, we can autogen a hasValidDwarfRegNum instead.
llvm-svn: 132236
2011-05-28 00:13:01 +00:00
91ed799eb4
Stub out support for Win64-style exceptions. Note that this is merely using
...
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!
llvm-svn: 132234
2011-05-27 23:47:32 +00:00
b8e08be77d
Fix a regression I recently introduced by removing DwarfRegNum of
...
subregisters:
When a value is in a subregister, at least report the location as being
the superregister. We should extend the .td files to encode the bit
range so that we can produce a DW_OP_bit_piece.
llvm-svn: 132224
2011-05-27 22:15:01 +00:00
d23bfb8a7a
Make size computation less brittle.
...
llvm-svn: 132222
2011-05-27 22:05:41 +00:00
39e22eae49
Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form.
...
llvm-svn: 132206
2011-05-27 19:13:26 +00:00
f1d04706fb
Handle signed types gracefully.
...
This fixes regressions reported by buildbots as a fallout of r132193.
llvm-svn: 132197
2011-05-27 18:15:52 +00:00
3c6aed2d98
Select DW_AT_const_value size based on variable size.
...
llvm-svn: 132193
2011-05-27 16:45:18 +00:00
fc9bae6f8b
Replace the -unwind-tables option with a per function flag. This is more
...
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.
llvm-svn: 132033
2011-05-25 03:44:17 +00:00
354fa0798f
Fix debug info for blocks' variable.
...
llvm-svn: 131940
2011-05-24 00:22:25 +00:00
faaa16ea2c
Remove unnecessary comment.
...
llvm-svn: 131936
2011-05-23 23:16:14 +00:00
8aded86edb
No reason not to allow defining the CFA as a reg w/ offset zero.
...
llvm-svn: 131760
2011-05-20 21:50:09 +00:00
17c1d13ee4
Fix typo.
...
llvm-svn: 131757
2011-05-20 21:35:39 +00:00
83c4bb157a
Add support for frame info use of the .cfi_def_cfa directive.
...
llvm-svn: 131756
2011-05-20 21:23:17 +00:00
12419aee7a
Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.
...
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g
llvm-svn: 131244
2011-05-12 21:29:42 +00:00
2409e7843b
Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
...
llvm-svn: 131238
2011-05-12 19:06:16 +00:00
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
a678098f24
Initialize moveTypeModule.
...
llvm-svn: 131157
2011-05-10 21:54:59 +00:00
19c1a56287
Produce a __debug_frame section on darwin ARM when appropriate.
...
llvm-svn: 131151
2011-05-10 21:04:45 +00:00
2fe0ee1ce2
Rename DwarfRequiresRelocationForStmtList to
...
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.
llvm-svn: 131148
2011-05-10 20:35:05 +00:00
fdc3e6fab6
Use .cfi_sections to put the unwind info in .debug_frame when possible. With
...
this clang will use .debug_frame in, for example,
clang -g -c -m32 test.c
This matches gcc's behaviour. It looks like .debug_frame is a bit bigger
than .eh_frame, but has the big advantage of not being allocated.
llvm-svn: 131140
2011-05-10 18:39:09 +00:00
589845d887
Do not ignore InlinedAt while walking up scope chain to find subprogram node.
...
llvm-svn: 131106
2011-05-09 22:14:49 +00:00
17b532728b
Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
...
llvm-svn: 130991
2011-05-06 16:57:54 +00:00
705d25a1f4
Nothing else uses this label.
...
llvm-svn: 130989
2011-05-06 15:44:29 +00:00
6e4fa20efb
Yet more dead code.
...
llvm-svn: 130988
2011-05-06 15:31:55 +00:00
d06c2c1b81
Update comments.
...
llvm-svn: 130987
2011-05-06 15:28:56 +00:00
4bfa978ca5
More dead code elimination.
...
llvm-svn: 130985
2011-05-06 15:22:26 +00:00
a716096677
Dead code elimination.
...
llvm-svn: 130984
2011-05-06 14:56:22 +00:00
bb237c72a6
Remove DwarfTableException.
...
llvm-svn: 130964
2011-05-05 23:19:54 +00:00
ec0a3a0bbf
Remove the DwarfTable enum.
...
llvm-svn: 130959
2011-05-05 22:14:31 +00:00
d6141e1db2
Remove little used statistical counter.
...
llvm-svn: 130955
2011-05-05 22:00:08 +00:00
59b6bfdbc6
Implement a really simple DwarfSjLjException.
...
llvm-svn: 130947
2011-05-05 20:48:31 +00:00
240c96e2ca
List all exception types in a switch.
...
llvm-svn: 130944
2011-05-05 19:48:34 +00:00
73bc172493
If debug info for inlined function is missing then handle it gracefully.
...
llvm-svn: 130933
2011-05-05 17:54:26 +00:00
a48b1375df
Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one
...
who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>
llvm-svn: 130918
2011-05-05 06:49:15 +00:00
a75589171a
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
c981f6299e
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
543596d57b
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
e02e58528a
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
420ab5f180
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
e406670954
Only produce the eh_frame section if we have at least one personality function.
...
llvm-svn: 130692
2011-05-02 15:49:52 +00:00
750cb61553
GCC uses a different encoding of pointers in the FDE when using
...
-fno-dwarf2-cfi-asm. Implement the same behavior.
llvm-svn: 130637
2011-05-01 04:49:54 +00:00
124ae13421
Hoist MCLineEntry construction AsmPrinter so that anyone who derives from AsmPrinter can have line number entries.
...
PR 9810
llvm-svn: 130518
2011-04-29 18:00:54 +00:00
1fc5bf9fc5
The last hack for producing bit identical output with cfi on OS X.
...
llvm-svn: 130504
2011-04-29 15:09:53 +00:00
697edc89a5
Change DwarfCFIException's member variables to track what it actually
...
emmits: .cfi_personality, .cfi_lsda and the moves.
llvm-svn: 130503
2011-04-29 14:48:51 +00:00
b7a012a282
Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.
...
llvm-svn: 130501
2011-04-29 14:14:06 +00:00
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
ce83fc3463
Remove unnecessary argument.
...
llvm-svn: 130343
2011-04-27 23:17:57 +00:00
08704349da
Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and
...
give it a bit more responsibility. Also implement it for MachO.
If hacked to use cfi, 32 bit MachO will produce
.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr
and 64 bit will produce
.cfi_presonality ___gxx_personality_v0
The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.
llvm-svn: 130341
2011-04-27 23:08:15 +00:00
77dc541b00
Simplify handling of variables with complex address (i.e. blocks variables)
...
llvm-svn: 130339
2011-04-27 22:45:24 +00:00
e3745fdcf3
Revert r130178. It turned out to be not the optimal path to emit complex location expressions.
...
llvm-svn: 130326
2011-04-27 20:29:27 +00:00
a4fa5ce911
Print the label if we will use it in debug_frame.
...
llvm-svn: 130232
2011-04-26 19:26:53 +00:00
ba5fbf17df
Refactor code. Keep dwarf register operation selection logic at one place.
...
llvm-svn: 130231
2011-04-26 19:06:18 +00:00
189ca1498f
don't emit the symbol name twice for local bss and common
...
symbols. For example, don't emit:
.comm _i,4,2 ## @i
## @i
instead emit:
.comm _i,4,2 ## @i
llvm-svn: 130192
2011-04-26 06:14:13 +00:00
80cb3cb1d6
Print all the moves at a given label instead of just the first one.
...
Remove previous DwarfCFI hack.
llvm-svn: 130187
2011-04-26 03:58:56 +00:00
cae2fbd6fc
Let dwarf writer allocate extra space in the debug location expression. This space, if requested, will be used for complex addresses of the Blocks' variables.
...
llvm-svn: 130178
2011-04-26 00:12:46 +00:00
2606f4d6d2
Rename a local variable.
...
llvm-svn: 130171
2011-04-25 23:05:21 +00:00
8ce24133fd
Rename a method to match what it really does.
...
s/addVariableAddress/addFrameVariableAddress/g
llvm-svn: 130170
2011-04-25 23:02:17 +00:00
2688e4aba6
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
a076199e71
Simplify the logic. Noticed by aKor.
...
llvm-svn: 130116
2011-04-24 19:55:34 +00:00
5c54ecc9af
Synchronize the conditions for producing a .cfi_startproc and a .cfi_endproc.
...
Fixes PR9787.
llvm-svn: 130115
2011-04-24 19:00:34 +00:00
1d6bbd41aa
Let front-end tie subprogram declaration with subprogram definition directly.
...
llvm-svn: 130028
2011-04-22 23:10:17 +00:00
ad45d911bb
Do not leak argument's DbgVariables.
...
llvm-svn: 130004
2011-04-22 18:09:57 +00:00
2266aa84a1
Refactor.
...
llvm-svn: 129938
2011-04-21 21:07:35 +00:00
28f2719d83
Add comment in output stream.
...
llvm-svn: 129921
2011-04-21 17:50:24 +00:00
e473aaf540
Remove unused arguments.
...
llvm-svn: 129844
2011-04-20 03:08:09 +00:00
17740e70d5
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
659bfb34ff
Remove unused variable.
...
llvm-svn: 129639
2011-04-16 10:30:47 +00:00
a83b177035
Put each personality function in a section. This fixes the gnu ld warning:
...
error in foo.o; no .eh_frame_hdr table will be created.
llvm-svn: 129635
2011-04-16 03:51:21 +00:00
514b4006c2
Introduce support to encode Objective-C property information in debugging information generated for an interface.
...
llvm-svn: 129624
2011-04-16 00:11:51 +00:00
beb74c3f00
Some refactoring suggested by Anton Korobeynikov.
...
llvm-svn: 129600
2011-04-15 20:32:03 +00:00
a01cdb0e37
Add 129518 back with a fix for when we are producing eh just because of debug info.
...
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.
llvm-svn: 129571
2011-04-15 15:11:06 +00:00
0ab5e2cded
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
b5e3e9dd27
Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the"
...
It broke several builds.
llvm-svn: 129557
2011-04-15 03:35:57 +00:00
aa2a7cd828
Change ELF systems to use CFI for producing the EH tables. This reduces the
...
size of the clang binary in Debug builds from 690MB to 679MB.
llvm-svn: 129518
2011-04-14 15:18:53 +00:00
Eric Christopher