Commit Graph

983 Commits

Author SHA1 Message Date
Anton Korobeynikov 9833d8c369 Temporary revert my last commit: it seems it's triggering some subtle bug in backend
and breaks llvm-gcc

llvm-svn: 58926
2008-11-08 23:05:05 +00:00
Anton Korobeynikov 09f51d1fd4 Factor out offset printing code into generic AsmPrinter.
FIXME: it seems, that most of targets don't support
offsets wrt CPI/GlobalAddress', was it intentional?

llvm-svn: 58917
2008-11-08 17:21:38 +00:00
Bill Wendling fe9e2c587d The Dwarf writer was comparing mangled and unmangled names for C++ code when we
have an unreachable block in a function. This was triggering the assert. This is
a horrid hack to cover this up.

Oh! for a good debug info architecture!

llvm-svn: 57714
2008-10-17 18:48:57 +00:00
Dale Johannesen 4f2791617e Remove some overzealous checks that were rejecting
valid comments in inline assembly.
gcc.target/i386/20011009-1.c

llvm-svn: 57365
2008-10-10 21:04:42 +00:00
Dale Johannesen 4f0bd68cfe Add a "loses information" return value to APFloat::convert
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329
2008-10-09 23:00:39 +00:00
Dale Johannesen 54306fe499 Rename APFloat::convertToAPInt to bitcastToAPInt to
make it clearer what the function does.  No functional
change.

llvm-svn: 57325
2008-10-09 18:53:47 +00:00
Dale Johannesen d796164e89 Align EH tables before label is emitted, not after,
thus aligning the label.

llvm-svn: 57310
2008-10-08 21:50:21 +00:00
Dan Gohman 0d1e9a8e04 Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.

llvm-svn: 57006
2008-10-03 15:45:36 +00:00
Bill Wendling 374d7f2b16 If we have a function with an unreachable statement such that the ending debug
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
2008-09-26 00:28:12 +00:00
Anton Korobeynikov fd7faecfc2 Use helper
llvm-svn: 56584
2008-09-24 22:21:04 +00:00
Anton Korobeynikov d19e91e5a8 SmallPtrSet will be better
llvm-svn: 56583
2008-09-24 22:20:46 +00:00
Anton Korobeynikov 123afb88c4 Use generic section-handling stuff to emit constant pool entries
llvm-svn: 56579
2008-09-24 22:17:59 +00:00
Anton Korobeynikov 7497762606 Get rid of duplicate char*/Section* DataSection
llvm-svn: 56575
2008-09-24 22:16:16 +00:00
Anton Korobeynikov f8dc8aac3c Get rid of duplicate char*/Section* TextSection
llvm-svn: 56574
2008-09-24 22:15:21 +00:00
Anton Korobeynikov 076e905b94 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic.
llvm-svn: 56573
2008-09-24 22:14:23 +00:00
Anton Korobeynikov 69ff51baa0 Drop obsolete hook and change all usage to new interface
llvm-svn: 56572
2008-09-24 22:13:07 +00:00
Anton Korobeynikov 7d002fa77b Provide direct function to switch to Section
llvm-svn: 56571
2008-09-24 22:12:10 +00:00
Dale Johannesen c36660d756 Next round of earlyclobber handling. Approach the
RA problem by expanding the live interval of an
earlyclobber def back one slot.  Remove
overlap-earlyclobber throughout.  Remove 
earlyclobber bits and their handling from
live internals.

llvm-svn: 56539
2008-09-24 01:07:17 +00:00
Oscar Fuentes a229b3c9a7 Initial support for the CMake build system.
llvm-svn: 56419
2008-09-22 01:08:49 +00:00
Dale Johannesen f8610ebebc Add a bit to mark operands of asm's that conflict
with an earlyclobber operand elsewhere.  Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way 
that conflicts with an earlyclobber.  See also comments.

llvm-svn: 56290
2008-09-17 21:13:11 +00:00
Dale Johannesen abb1e7770b Move the uglier parts of deciding not to emit a
UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.

llvm-svn: 56024
2008-09-09 22:29:13 +00:00
Dale Johannesen f080225490 Fix logic for not emitting no-dead-strip for some
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
2008-09-09 01:21:22 +00:00
Dale Johannesen ea9285e643 Don't suppress no-dead-strip for used static functions.
llvm-svn: 55962
2008-09-08 21:21:49 +00:00
Dan Gohman f9b2054df1 Add AsmPrinter support for i128 and larger static initializer data.
llvm-svn: 55919
2008-09-08 16:40:13 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Dale Johannesen 5c1ff11fc3 Do not emit a UsedDirective for things in the llvm.used
list that have internal linkage; the linker doesn't need
or want this.  (These objects must still be preserved
at compile time, so just removing them from the llvm.used
list doesn't work.)  Should affect only Darwin.

llvm-svn: 55722
2008-09-03 20:34:58 +00:00
Owen Anderson 893ce348a7 Remove unneeded #include.
llvm-svn: 55134
2008-08-21 19:51:25 +00:00
Owen Anderson 9371964f47 Use raw_ostream throughout the AsmPrinter.
llvm-svn: 55092
2008-08-21 00:14:44 +00:00
Chris Lattner 5d2a9a4ae6 don't use the result of WriteTypeSymbolic or WriteAsOperand.
llvm-svn: 54978
2008-08-19 04:44:30 +00:00
Gordon Henriksen 86e7d0a1df Drop an unnecessary include.
llvm-svn: 54901
2008-08-17 18:54:05 +00:00
Gordon Henriksen d930f913e6 Rename some GC classes so that their roll will hopefully be clearer.
In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:

  Collector               -> GCStrategy
  CollectorMetadata       -> GCFunctionInfo
  CollectorModuleMetadata -> GCModuleInfo
  CollectorRegistry       -> GCRegistry
  Function::getCollector  -> getGC (setGC, hasGC, clearGC)

Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.

llvm-svn: 54899
2008-08-17 18:44:35 +00:00
Anton Korobeynikov afbc02ba50 Fix merge error
llvm-svn: 54891
2008-08-17 13:56:03 +00:00
Anton Korobeynikov 9cb0e94dc7 Move all assembler printing related stuff into new libAsmPrinter
llvm-svn: 54885
2008-08-17 13:53:04 +00:00