We now emit a line table for each compile unit. To reduce the prologue size
of each line table, the files and directories used by each compile unit are
stored in std::map<unsigned, std::vector< > > instead of std::vector< >.

The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each
compile unit causes a huge increase of debug info. With this patch, each
prologue will only emit the files required by the compile unit.

rdar://problem/13342023

llvm-svn: 176605

a few lines above.

llvm-svn: 176224

llvm-svn: 176223

definition DIE (TAG_variable), and put AT_MIPS_linkage_name to TAG_member when
DarwinGDBCompat is true.

Darwin GDB needs AT_MIPS_linkage_name at both places to work.

Follow-up patch to r176143.
rdar://problem/13291234

llvm-svn: 176220

definition DIE, to make old GDB happy.

We have a regression for old GDB when Clang uses DW_TAG_member to declare
static members inside a class, instead of DW_TAG_variable. This patch will fix
this regression.

rdar://problem/13291234

llvm-svn: 176143

llvm-svn: 176129

TAG_member inside a class to the specification DIE.

Having AT_MIPS_linkage_name on TAG_member caused old gdb (GNU 6.3.50) to
error out. Also gcc 4.7 has AT_MIPS_linkage_name on the specification DIE.

rdar://problem/13291234

llvm-svn: 176120

update testcase accordingly to give the correct name to the cu.

llvm-svn: 175934

llvm-svn: 175264

option "generate-dwarf-pubnames" to control it, set to "false" by default.

llvm-svn: 174981

This reverts my commit 171047. Now that I've removed my misguided attempt to
support backend warnings, these diagnostics are only about inline assembly.
It would take quite a bit more work to generalize them properly, so I'm
just reverting this.

llvm-svn: 174860

llvm-svn: 174817

line table entries in assembly.

llvm-svn: 174785

syms before constructing the compile units so we're not emitting
section references to sections not there already.

llvm-svn: 174663

units coming in.

llvm-svn: 174548

llvm-svn: 174547

Failure: undefined symbol 'Lline_table_start0'.
Root-cause: we use a symbol subtraction to calculate at_stmt_list, but
the line table entries are not dumped in the assembly.
Fix: use zero instead of a symbol subtraction for Compile Unit 0.

llvm-svn: 174479

We generate one line table for each compilation unit in the object file.
Reviewed by Eric and Kevin.

rdar://problem/13067005

llvm-svn: 174445

for the first compile unit.

llvm-svn: 174352

DWARF5 split dwarf proposal.

llvm-svn: 174350

Testing case is reduced from MultiSource/BenchMarks/Prolangs-C++/deriv1.

rdar://problem/13071590

llvm-svn: 174235

We used to create children DIEs for a scope, then check whether ScopeDIE is
null. If ScopeDIE is null, the children DIEs will be dangling. Other DIEs can
link to those dangling DIEs, which are not emitted at all, causing dwarf error.

The current testing case is 4k lines, from MultiSource/BenchMark/McCat/09-vor.

rdar://problem/13071959

llvm-svn: 174084

Provides the functionality for Clang change r172911 - I just had this still
lying around.

llvm-svn: 173820

llvm-svn: 173698

llvm-svn: 172941

llvm-svn: 172857

changing both the string of the dwo_name to be correct and the type of
the statement list.

Testcases all around.

llvm-svn: 172699

emitting the dwarf32 version of DW_FORM_sec_offset and correct
disassembler support.

llvm-svn: 172698

of a class. Emit static data member declarations and definitions
through correctly.

Part of PR14471.

Patch by Paul Robinson!

llvm-svn: 172590

using the DW_FORM_GNU_addr_index and a separate .debug_addr section which
stays in the executable and is fully linked.

Sneak in two other small changes:

a) Print out the debug_str_offsets.dwo section.
b) Change form we're expecting the entries in the debug_str_offsets.dwo
   section to take from ULEB128 to U32.

Add tests for all of this in the fission-cu.ll test.

llvm-svn: 172578

This removes previous special cases for each floating-point type in favour of a
shared codepath.

llvm-svn: 172189

address space. Reordered the EmitULEB128IntValue arguments to
make this easier.

llvm-svn: 171949

them.

llvm-svn: 171933

them and add one where it seemed obvious that we wanted one.

llvm-svn: 171932

llvm-svn: 171905

llvm-svn: 171866

make sure that vector types do work.

llvm-svn: 171833

llvm-svn: 171803

llvm-svn: 171780

proposal. This leaves the strings in the skeleton die as strp,
but in all dwo files they're accessed now via DW_FORM_GNU_str_index.

Add support for dumping these sections and modify the fission-cu.ll
testcase to have the correct strings and form. Fix a small bug
in the fixed form sizes routine that involved out of array accesses
for the table and add a FIXME in the extractFast routine to fix
this up.

llvm-svn: 171779