in other types.  fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.

This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.

llvm-svn: 101879

responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844

llvm-svn: 101805

llvm-svn: 101640

llvm-svn: 101639

llvm-svn: 101575

llvm-svn: 101376

llvm-svn: 101334

llvm-svn: 101317

llvm-svn: 101315

llvm-svn: 101314

llvm-svn: 101202

llvm-svn: 101171

llvm-svn: 100867

llvm-svn: 100852

merge XCore's section into MCSectionELF

llvm-svn: 100812

llvm-svn: 100797

implicit defs get added to the end of machine instrs sometimes.  Scan the whole instruction for the metadata operand instead of assuming it will be at the end of the instruction.

llvm-svn: 100792

There is no need to remember labels identifying regions marked by such instructions in each scope.

llvm-svn: 100781

llvm-svn: 100771

llvm-svn: 100769

llvm-svn: 100768

llvm-svn: 100756

and use it in one place in inline asm handling stuff.  Before
we'd generate this for an invalid modifier letter:

$ clang asm.c -c -o t.o
fatal error: error in backend: Invalid operand found in inline asm: 'abc incl    ${0:Z}'
INLINEASM <es:abc incl    ${0:Z}>, 10, %EAX<def>, 2147483657, %EAX, 14, %EFLAGS<earlyclobber,def,dead>, <!-1>


Now we generate this:

$ clang asm.c -c -o t.o
error: invalid operand in inline asm: 'incl    ${0:Z}'
asm.c:3:12: note: generated from here
  __asm__ ("incl    %Z0" : "+r" (X));
           ^
1 error generated.

This is much better but still admittedly not great ("why" is the operand 
invalid??), codegen should try harder with its diagnostics :)

llvm-svn: 100723

llvm-svn: 100709

llvm-svn: 100700

llvm-svn: 100638

llvm-svn: 100620

TimePassesIsEnabled. This should allow make check to pass.

llvm-svn: 100618

llvm-svn: 100616

llvm-svn: 100615

Have the asmprinter use the mdnode to scavenge a source location if
present.  Document this nonsense in langref.

llvm-svn: 100607

llvm-svn: 100606

into AsmPrinter.  Target-dependent form is still generated
by FastISel and still handled in X86 code.

llvm-svn: 100596

Do not emit specification DIE with DW_AT_specification attribute for member functions of a funcation local class. This trips gdb's partial scan of DIEs at load time. Fixes Radar 7833483.

llvm-svn: 100586

solution.  The only reason these don't fire with gcc-4.2 is that gcc turns off
part of -Wsign-compare in C++ on accident.

llvm-svn: 100581

llvm-svn: 100578

There is probably a more elegant way to do this.

llvm-svn: 100573

llvm-svn: 100563

A certain GDB testsuite case (local.cc) has a function nested inside a
class nested inside another function.  GCC presents the innermost
function to llvm-convert first.  Heretofore, the debug info mistakenly
placed the inner function at module scope.  This patch walks the GCC
context links and instantiates the outer class and function so the
debug info is properly nested.  Radar 7426545.

llvm-svn: 100530