llvm-svn: 102394

alignment of globals with a specified alignment, we fix
common variables to obey their alignment.  Add a comment
explaining why this behavior is important.

llvm-svn: 102365

llvm-svn: 102359

preferred alignment unless they were common or some other special
case.

llvm-svn: 102300

because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.

llvm-svn: 102155

llvm-svn: 102129

llvm-svn: 102127

llvm-svn: 102106

llvm-svn: 102104

llvm-svn: 102102

Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.

llvm-svn: 102012

Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.

llvm-svn: 102004

optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984

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