10 Commits

Author SHA1 Message Date
Adrian Prantl
cd975018fe Module Debugging: Make sure that anonymous tag decls that define global
variables are visited.

This shouldn't encourage anyone to put global variables into clang modules.
rdar://problem/24199640

llvm-svn: 258250
2016-01-19 23:42:44 +00:00
Adrian Prantl
e5238d2a82 Module Debugging: Defer the emission of anonymous tag decls
until we are visiting their declcontext.

This fixes a regression introduced in r256962:
When building debug info for a typdef'd anonymous tag type, we would be
visiting the inner anonymous type first thus creating a "typedef changes
linkage of anonymous type, but linkage was already computed" error.

rdar://problem/24199640

llvm-svn: 258152
2016-01-19 18:02:47 +00:00
Adrian Prantl
35e765baff Module debugging: Add a testcase for standalone forward declarations.
llvm-svn: 257241
2016-01-09 01:11:35 +00:00
Adrian Prantl
b3b821f1df Module debugging: Defer emitting tag types until their definition
was visited and all decls have been merged.

We only get a single chance to emit the types for virtual classes because
CGDebugInfo::completeRequiredType() categorically doesn't complete them.

llvm-svn: 256962
2016-01-06 19:22:19 +00:00
Adrian Prantl
aac97c93ac Fix a typo in testcase and increase its coverage!
llvm-svn: 256874
2016-01-05 23:54:01 +00:00
Douglas Katzman
3459ce2e5e Stop messing with the 'g' group of options in CompilerInvocation.
With this change, most 'g' options are rejected by CompilerInvocation.
They remain only as Driver options. The new way to request debug info
from cc1 is with "-debug-info-kind={line-tables-only|limited|standalone}"
and "-dwarf-version={2|3|4}". In the absence of a command-line option
to specify Dwarf version, the Toolchain decides it, rather than placing
Toolchain-specific logic in CompilerInvocation.

Also fix a bug in the Windows compatibility argument parsing
in which the "rightmost argument wins" principle failed.

Differential Revision: http://reviews.llvm.org/D13221

llvm-svn: 249655
2015-10-08 04:24:12 +00:00
Adrian Prantl
a5206ce72a Module Debugging: Use the clang module signature as the module's dwo_id
when building a module. Clang already records the module signature when
building a skeleton CU to reference a clang module.

Matching the id in the skeleton with the one in the module allows a DWARF
consumer to verify that they found the correct version of the module
without them needing to know about the clang module format.

llvm-svn: 248345
2015-09-22 23:26:43 +00:00
Adrian Prantl
54a3457fe1 Debug Info: Remove an unnecessary debug type visitor.
Thanks to dblaikie for spotting this.

llvm-svn: 247303
2015-09-10 17:13:31 +00:00
NAKAMURA Takumi
0981f73473 clang/test/Modules/ModuleDebugInfo.cpp: Add -triple %itanium to appease ms-targeted builds.
I think DebugInfo tests may avoid MS stuff for now.

llvm-svn: 247093
2015-09-08 22:47:32 +00:00
Adrian Prantl
4aa2b3a311 Module Debugging: Emit debug type information into clang modules.
When -fmodule-format is set to "obj", emit debug info for all types
declared in a module or referenced by a declaration into the module's
object file container.

This patch adds support for C and C++ types.

llvm-svn: 247049
2015-09-08 19:20:27 +00:00