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Commit Graph

23 Commits

Author SHA1 Message Date
Adrian Prantl
d7f77dd966 Debug info: Remove ARMAsmPrinter::EmitDwarfRegOp(). AsmPrinter can now
scan the register file for sub- and super-registers.
No functionality change intended.

(Tests are updated because the comments in the assembler output are
different.)

llvm-svn: 202416
2014-02-27 17:56:08 +00:00
Adrian Prantl
5b1e439b75 Debug info: Bugfix for r201190: DW_OP_piece takes bytes, not bits.
rdar://problem/16015314

llvm-svn: 201253
2014-02-12 19:34:44 +00:00
Adrian Prantl
42b57f6dee Reapply r201180 with an additional error path.
Debug info: Emit values in subregisters that do not have a separate
DWARF register number by emitting a super-register + DW_OP_bit_piece.
This is necessary because on x86_64, there are no DWARF register numbers
for i386-style subregisters.
Fixes a bunch of FIXMEs.

rdar://problem/16015314

llvm-svn: 201190
2014-02-11 22:22:15 +00:00
Adrian Prantl
dbf8ec2eec Revert "Debug info: Emit values in subregisters that do not have a separate"
This reverts commit r201179 for buildbot breakage.

llvm-svn: 201188
2014-02-11 22:03:30 +00:00
Adrian Prantl
a3d563a0d0 Debug info: Emit values in subregisters that do not have a separate
DWARF register number by emitting a super-register + DW_OP_bit_piece.
This is necessary because on x86_64, there are no DWARF register numbers
for i386-style subregisters.
Fixes a bunch of FIXMEs.

rdar://problem/16015314

llvm-svn: 201180
2014-02-11 21:22:59 +00:00
Manman Ren
f0d5143ea6 Debug Info: update testing cases to specify the debug info version number.
We are going to drop debug info without a version number or with a different
version number, to make sure we don't crash when we see bitcode files with
different debug info metadata format.

llvm-svn: 195504
2013-11-22 21:49:45 +00:00
Manman Ren
450526b5a9 Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields.
Field 2 of DIType (Context), field 9 of DIDerivedType (TypeDerivedFrom),
field 12 of DICompositeType (ContainingType), fields 2, 7, 12 of DISubprogram
(Context, Type, ContainingType).

llvm-svn: 190205
2013-09-06 21:03:58 +00:00
Manman Ren
20ae2817fa Debug Info: add an identifier field to DICompositeType.
DICompositeType will have an identifier field at position 14. For now, the
field is set to null in DIBuilder.
For DICompositeTypes where the template argument field (the 13th field)
was optional, modify DIBuilder to make sure the template argument field is set.
Now DICompositeType has 15 fields.

Update DIBuilder to use NULL instead of "i32 0" for null value of a MDNode.
Update verifier to check that DICompositeType has 15 fields and the last
field is null or a MDString.

Update testing cases to include an extra field for DICompositeType.
The identifier field will be used by type uniquing so a front end can
genearte a DICompositeType with a unique identifer.

llvm-svn: 189282
2013-08-26 22:39:55 +00:00
Manman Ren
2bd542e9c6 Debug Info Verifier: enable verification of DICompileUnit.
We used to call Verify before adding DICompileUnit to the list, and now we
remove the check and always add DICompileUnit to the list in DebugInfoFinder,
so we can verify them later on.

llvm-svn: 187237
2013-07-26 20:04:30 +00:00
Manman Ren
c48140740e Debug Info: improve the verifier to check field types.
Make sure the context and type fields are MDNodes. We will generate
verification errors if those fields are non-empty strings.
Fix testing cases to make them pass the verifier.

llvm-svn: 187106
2013-07-25 06:43:01 +00:00
David Blaikie
9bfe15c313 Revert "Revert "PR14606: debug info imported_module support""
This reverts commit r179840 with a fix to test/DebugInfo/two-cus-from-same-file.ll

I'm not sure why that test only failed on ARM & MIPS and not X86 Linux, even
though the debug info was clearly invalid on all of them, but this ought to fix
it.

llvm-svn: 179996
2013-04-22 06:12:31 +00:00
Eric Christopher
88bdd26cc9 Revert "PR14606: debug info imported_module support"
This reverts commit r179836 as it seems to have caused test failures.

llvm-svn: 179840
2013-04-19 07:47:16 +00:00
David Blaikie
46f35f8e56 PR14606: debug info imported_module support
Adding another CU-wide list, in this case of imported_modules (since they
should be relatively rare, it seemed better to add a list where each element
had a "context" value, rather than add a (usually empty) list to every scope).
This takes care of DW_TAG_imported_module, but to fully address PR14606 we'll
need to expand this to cover DW_TAG_imported_declaration too.

llvm-svn: 179836
2013-04-19 06:57:04 +00:00
David Blaikie
377434ec76 Revert "Adding DIImportedModules to DIScopes."
This reverts commit 342d92c7a0adeabc9ab00f3f0d88d739fe7da4c7.

Turns out we're going with a different schema design to represent
DW_TAG_imported_modules so we won't need this extra field.

llvm-svn: 178215
2013-03-28 02:44:59 +00:00
David Blaikie
75da1f2b54 Adding DIImportedModules to DIScopes.
This is just the basic groundwork for supporting DW_TAG_imported_module but I
wanted to commit this before pushing support further into Clang or LLVM so that
this rather churny change is isolated from the rest of the work. The major
churn here is obviously adding another field (within the common DIScope prefix)
to all DIScopes (files, classes, namespaces, lexical scopes, etc). This should
be the last big churny change needed for DW_TAG_imported_module/using directive
support/PR14606.

llvm-svn: 178099
2013-03-27 00:07:26 +00:00
David Blaikie
620d0ae359 Reorder the DIFile field in DILexicalBlock to become a prefix common with other DIScopes
llvm-svn: 177703
2013-03-22 05:47:44 +00:00
David Blaikie
67c9dc82dc Remove unused field in DISubprogram
llvm-svn: 177661
2013-03-21 20:28:52 +00:00
David Blaikie
30abbc718f Remove unused field in DICompileUnit
llvm-svn: 177590
2013-03-20 22:34:33 +00:00
David Blaikie
3c701e7671 Refactor filename/directory in DICompileUnit into a DIFile
This is the next step towards making the metadata for DIScopes have a common
prefix rather than having to delegate based on their tag type.

llvm-svn: 176913
2013-03-13 00:01:35 +00:00
David Blaikie
98d9ccffb8 Remove unused "isMain" field from DICompileUnit
llvm-svn: 176910
2013-03-12 22:43:04 +00:00
David Blaikie
c37a0a822a Update debug info test cases with empty SplitDebugFilename field.
This could be 'null' or the empty string, DIDescriptor::getStringField
coalesces the two cases anyway so it's just a matter of legible/efficient
representation.

The change in behavior of the DICompileUnit::get* functions could be
subsumed by the full verification check - but ideally that should just be an
assertion if we could front-load the actual debug info metadata failure paths.

llvm-svn: 176907
2013-03-12 22:25:36 +00:00
David Blaikie
41f29ff448 Upgrade tests to the latest debug info format.
Mostly this is just changing the named metadata (llvm.dbg.sp, llvm.dbg.gv,
llvm.dbg.<func>.lv, etc -> llvm.dbg.cu), adding a few fields to older records
(DIVariable: flags/inlined-at, DICompileUnit: sp/gv/types,
DISubprogram: local variables list)

The tests to update were discovered by a change I'm working on to remove debug
info version support - so any tests using old debug info versions I haven't
updated probably are bad tests or just not actually designed to test debug
info.

llvm-svn: 176671
2013-03-08 00:23:31 +00:00
Rafael Espindola
9ce5cebde6 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