llvm-svn: 130501

This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373

llvm-svn: 130326

llvm-svn: 130232

symbols.  For example, don't emit:
        .comm   _i,4,2                  ## @i
                                        ## @i

instead emit:
        .comm   _i,4,2                  ## @i

llvm-svn: 130192

Remove previous DwarfCFI hack.

llvm-svn: 130187

Let dwarf writer allocate extra space in the debug location expression. This space, if requested, will be used for complex addresses of the Blocks' variables.

llvm-svn: 130178

llvm-svn: 129938

llvm-svn: 129715

llvm-svn: 129600

Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129571

It broke several builds.

llvm-svn: 129557

size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129518

llvm-svn: 128887

llvm-svn: 128504

llvm-svn: 127099

r124468.  Patch by Rafael Avila de Espindola!

llvm-svn: 126297

llvm-svn: 125563

llvm-svn: 125225

llvm-svn: 124468

Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.

llvm-svn: 123476

llvm-svn: 123473

so that Dominators.h is *just* domtree.  Also prune #includes a bit.

llvm-svn: 122714

for each constant pool entry.  Using WriteTypeSymbolic here takes time
proportional to the size of the module, for each constant pool entry.

This speeds up -verbose-asm llc on 252.eon (a random testcase at my disposal)
from 4.4s to 2.137s.  llc takes 2.11s with asm-verbose off, so this is now a
pretty reasonable cost for verbose comments.

llvm-svn: 121691

llvm-svn: 119482

s/endScope/endInstruction/g

llvm-svn: 117376

support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.

llvm-svn: 114817

llvm-svn: 113117

Thanks Chris!

llvm-svn: 112900

llvm-svn: 112830

being actively maintained, improved, or extended.

llvm-svn: 112356

It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).

llvm-svn: 111684

llvm-svn: 111384

llvm-svn: 110460

llvm-svn: 110410

ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396

be triggered by valid, if dubious, IR.

llvm-svn: 110240

llvm-svn: 108628

  void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568

thus is a much more meaningful name.

llvm-svn: 108563