Commit Graph

464 Commits

Author SHA1 Message Date
Chris Lattner
a38941d458 refactor the interface to EmitInlineAsm a bit, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17 07:53:40 +00:00
Devang Patel
cbbe287f8a s/beginScope/beginInstruction/g
s/endScope/endInstruction/g



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26 17:49:02 +00:00
Chris Lattner
8048ebe91d the latest assembler that runs on powerpc 10.4 machines doesn't
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-27 06:44:54 +00:00
Chris Lattner
dfe254b86e add a comment about where this should eventually move.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05 20:33:40 +00:00
Devang Patel
a660be7587 There is no need to use .set here.
Thanks Chris!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:01:10 +00:00
Devang Patel
b1fcfbe89b Fix .debug_range for linux. Patch by Krister Wombell.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 16:43:44 +00:00
Chris Lattner
61c70e98ac remove unions from LLVM IR. They are severely buggy and not
being actively maintained, improved, or extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 04:09:24 +00:00
Bill Wendling
55ae515f9d Create the new linker type "linker_private_weak_def_auto".
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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20 22:05:50 +00:00
Bill Wendling
3d7ff08c82 Improve whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18 18:41:13 +00:00
Owen Anderson
90c579de5a Reapply r110396, with fixes to appease the Linux buildbot gods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 18:33:48 +00:00
Owen Anderson
1f74590e9d Revert r110396 to fix buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 00:23:35 +00:00
Owen Anderson
9ccaf53ada Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
ID member as the sole unique type identifier.  Clean up APIs related to this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 23:42:04 +00:00
Dan Gohman
9f6a6862be Change this llvm_unreachable to report_fatal_error, since it can
be triggered by valid, if dubious, IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 18:51:09 +00:00
Bill Wendling
7490896f9d Use isPrologLabel() instead of checking the opcode directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17 19:18:44 +00:00
Bill Wendling
dc86704114 Consider this function:
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 22:51:10 +00:00
Bill Wendling
7431beaba2 Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and
thus is a much more meaningful name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 22:20:36 +00:00
Jakob Stoklund Olesen
04c528a0c8 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 04:45:42 +00:00
Chris Lattner
b5b73c4c86 a more graceful fix for test/Other/inline-asm-newline-terminator.ll,
follow on to r103765


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 00:37:34 +00:00
Bill Wendling
eabd735c9a Make the "linker_private" linkage type emit a non-weak symbol to the file. It
will still be stripped by the linker when it generates the final image.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 22:38:24 +00:00
Bill Wendling
5e721d7682 Implement the "linker_private_weak" linkage type. This will be used for
Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.

For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:

      .globl l_objc_msgSend_fixup_alloc
      .weak_definition l_objc_msgSend_fixup_alloc
      .section __DATA, __objc_msgrefs, coalesced
      .align 3
l_objc_msgSend_fixup_alloc:
       .quad   _objc_msgSend_fixup
       .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

Currently only supported on Darwin platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 21:55:59 +00:00
Bill Wendling
07d3177117 Revert r107205 and r107207.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 22:34:52 +00:00
Devang Patel
e025e966a8 Print InlinedAt location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107214 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 22:29:15 +00:00
Bill Wendling
207855cff9 Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

       .globl l_objc_msgSend_fixup_alloc
       .weak_definition l_objc_msgSend_fixup_alloc
       .section __DATA, __objc_msgrefs, coalesced
       .align 3
l_objc_msgSend_fixup_alloc:
        .quad   _objc_msgSend_fixup
        .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 21:24:00 +00:00
Dan Gohman
03c3dc7b68 Give NamedRegionTimer an Enabled flag, allowing all its clients to
switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 15:56:31 +00:00
Eric Christopher
7500e06e38 Don't emit the linkage for initializer label for mach-o tls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16 00:27:30 +00:00
Eric Christopher
7310064f4d One underscore, not two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 04:02:59 +00:00
Eric Christopher
04386ca726 Move the verbose asm output up a bit so it can be used in the special cases
as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25 21:49:43 +00:00
Eric Christopher
02b46bc942 Add support for initialized global data for darwin tls. Update comments
and testcases accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25 21:28:50 +00:00
Eric Christopher
8116ca5134 Add full bss data support for darwin tls variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22 00:10:22 +00:00
Eric Christopher
c1a887d76d Partial code for emitting thread local bss data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20 00:49:07 +00:00
Duncan Sands
5b1b3b73f2 Remove unused variable. Tweak a comment while there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103586 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-12 07:11:33 +00:00
Nathan Jeffords
871bb94c43 updated support for the COFF .linkonce
Now, the .linkonce directive is emitted as part of MCSectionCOFF::PrintSwitchToSection instead of AsmPrinter::EmitLinkage since it is an attribute of the section the symbol was placed into not the symbol itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-12 04:26:09 +00:00
Devang Patel
2db49d797b Avoid DIDescriptor::getNode(). Use overloaded operators instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103272 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 18:11:54 +00:00
Chris Lattner
b4202dbb36 Fix PR7054 - Assertion `Symbol->isUndefined() && "Cannot define a symbol twice!"' failed.
Users can write broken code that emits the same label twice with asm renaming,
detect this and emit a fatal backend error instead of aborting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 00:05:37 +00:00
Dale Johannesen
d014761c93 Don't count debug info as instructions. This was
preventing the emission of the NOP on Darwin for a
function with no actual code.  From timberwolfmc
with TEST=optllcdbg.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 16:41:11 +00:00
Devang Patel
67a444ca36 Print variable scope name in DEBUG_VALUE comment. Useful in some cases. e.g.
##DEBUG_VALUE: runOnMachineFunction:this <- RDI+0
	##DEBUG_VALUE: runOnMachineFunction:fn <- RSI+0
	##DEBUG_VALUE: DeadDefs <- undef ## SimpleRegisterCoalescing.cpp:2706
	##DEBUG_VALUE: getRegInfo:this <- [%rsp+$56]+$0
	##DEBUG_VALUE: getTarget:this <- [%rsp+$56]+$0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102655 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 18:52:10 +00:00
Chris Lattner
e87f7bb50e Rework global alignment computation again. Now we do round up
alignment of globals to the preferred alignment, but only when
there is no section specified on the global (by far the common
case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 19:58:07 +00:00
Devang Patel
28ff35d030 Emit debug info for byval parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 01:39:28 +00:00
Chris Lattner
a7b611c10d further simplify EmitAlignment by eliminating the
ForcedAlignBits argument, tweaking the single client of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 01:08:40 +00:00
Chris Lattner
755824756c remove a dead argument to EmitAlignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 01:06:02 +00:00
Evan Cheng
ed33b13a10 Do not count kill, implicit_def instructions as printed instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-27 19:38:45 +00:00
Chris Lattner
4c4d0c0cc5 round zero-byte .zerofill directives up to 1 byte. This
should fix some "g++.dg-struct-layout-1" failures, 
rdar://7886017


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102421 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-27 07:41:44 +00:00
Chris Lattner
d61647d306 add a comment in verbose-asm mode indicating why a noop is being generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 23:41:43 +00:00
Chris Lattner
ee9eb411ff on darwin empty functions need to codegen into something of non-zero length,
otherwise labels get incorrectly merged.  We handled this by emitting a 
".byte 0", but this isn't correct on thumb/arm targets where the text segment
needs to be a multiple of 2/4 bytes.  Handle this by emitting a noop.  This
is more gross than it should be because arm/ppc are not fully mc'ized yet.

This fixes rdar://7908505



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 23:37:21 +00:00
Chris Lattner
567dd1f5d0 fix PR6921 a different way. Intead of increasing the
alignment of globals with a specified alignment, we fix
common variables to obey their alignment.  Add a comment
explaining why this behavior is important.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 18:46:46 +00:00
Chris Lattner
f74e25f60c Revert r102300/102301, which serious broke objc apps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 18:30:45 +00:00
Chris Lattner
044698b39a Fix PR6921: globals were not getting correctly rounded up to their
preferred alignment unless they were common or some other special
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-25 05:30:43 +00:00
Chris Lattner
44e05080f8 Bill's change in r95336 broke empty aggregates embedded
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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101879 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 06:20:21 +00:00
Dan Gohman
0d805c33d1 Add const qualifiers to TargetLoweringObjectFile usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101640 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 16:44:48 +00:00
Devang Patel
f2548caaa8 Add support to emit dwarf ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101575 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 23:33:45 +00:00