Commit Graph

1170 Commits

Author SHA1 Message Date
Eric Christopher b672ab9b53 Don't emit the linkage for initializer label for mach-o tls.
llvm-svn: 106073
2010-06-16 00:27:30 +00:00
Stuart Hastings 9b5005cd4b Added a comment.
llvm-svn: 106063
2010-06-15 23:06:30 +00:00
Stuart Hastings afe54f1625 Support for nested functions/classes in debug output. (Again.) Radar 7424645.
llvm-svn: 105828
2010-06-11 20:08:44 +00:00
Stuart Hastings 3ca391027f Revert 105492 & 105493 due to a testcase regression. Radar 7424645.
llvm-svn: 105511
2010-06-05 00:39:29 +00:00
Stuart Hastings 7c015988fe Support for nested functions/classes in debug output. Radar 7424645.
llvm-svn: 105492
2010-06-04 22:36:03 +00:00
Eric Christopher f67fe3b1e8 One underscore, not two.
llvm-svn: 105379
2010-06-03 04:02:59 +00:00
Devang Patel c2254f6b98 Skip identical instruction while calculating DBG_VALUE range.
llvm-svn: 105340
2010-06-02 19:05:13 +00:00
Devang Patel 21ccf05b4c Use local small vector.
llvm-svn: 105332
2010-06-02 16:42:51 +00:00
Devang Patel d43e0ca916 Ignore line number of debug value in undefined register.
llvm-svn: 105292
2010-06-01 21:43:09 +00:00
Stuart Hastings c1e216583f Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645.
llvm-svn: 104953
2010-05-28 16:41:07 +00:00
Devang Patel 7a9dedf0ab Do not drop location info for inlined function args.
llvm-svn: 104884
2010-05-27 20:25:04 +00:00
Devang Patel 5e6b71ce34 inlined function's arguments need a label to mark the start point because they are not directly attached to current function.
llvm-svn: 104848
2010-05-27 16:47:30 +00:00
Stuart Hastings 8e99e50d08 Support for nested functions/classes in debug output. Radar 7424645.
llvm-svn: 104841
2010-05-27 16:16:54 +00:00
Devang Patel 6b9a9fe207 Simplify. Eliminate unneeded debug_loc entry.
llvm-svn: 104785
2010-05-26 23:55:23 +00:00
Devang Patel acc32a5c19 There is no need to force an line number entry (using previous location) for a temp label at unknown location.
llvm-svn: 104740
2010-05-26 21:23:46 +00:00
Devang Patel 002d54ddc9 Identify instructions, that needs a label to mark debug info entity, in advance. This simplifies beginScope().
llvm-svn: 104720
2010-05-26 19:37:24 +00:00
Devang Patel 95fcc96752 Remove dead code.
llvm-svn: 104706
2010-05-26 17:42:50 +00:00
Devang Patel 5a5e0bc3b5 Do not construct location list backword!
llvm-svn: 104705
2010-05-26 17:29:32 +00:00
Devang Patel 9fc11706e3 First cut at supporting .debug_loc section.
This is used to track variable information.

llvm-svn: 104649
2010-05-25 23:40:22 +00:00
Eric Christopher f3925438e5 Move the verbose asm output up a bit so it can be used in the special cases
as well.

llvm-svn: 104642
2010-05-25 21:49:43 +00:00
Eric Christopher 19a4b843cc Add support for initialized global data for darwin tls. Update comments
and testcases accordingly.

llvm-svn: 104635
2010-05-25 21:28:50 +00:00
Devang Patel 51b37e0bd8 Do not emit line number entries for unknown debug values.
This fixes recent regression in store.exp from gdb testsuite.

llvm-svn: 104524
2010-05-24 18:26:49 +00:00
Nicolas Geoffray c5327226e4 Encode the Caml frametable by following what the comment says: the number of descriptors
is first emitted, and StackOffsets are emitted in 16 bits.

llvm-svn: 104488
2010-05-24 12:24:11 +00:00
Eric Christopher 6fdea1bda8 Add full bss data support for darwin tls variables.
llvm-svn: 104414
2010-05-22 00:10:22 +00:00
Devang Patel 4a8e6e83dc Collect variable information during endFunction() instead of beginFunction().
llvm-svn: 104412
2010-05-22 00:04:14 +00:00
Devang Patel 1782aae355 Simplify
llvm-svn: 104338
2010-05-21 18:49:09 +00:00
Devang Patel fbd6c45e06 Simplify.
llvm-svn: 104302
2010-05-21 00:10:20 +00:00
Devang Patel 490c8ab76d Refactor.
llvm-svn: 104265
2010-05-20 19:57:06 +00:00
Devang Patel e1c53f29d3 Split DbgVariable. Eventually, variable info will be communicated through frame index, or DBG_VALUE instruction, or collection of DBG_VALUE instructions. Plus each DbgVariable may not need a label.
llvm-svn: 104233
2010-05-20 16:36:41 +00:00
Eric Christopher 27e7ffc7d4 Partial code for emitting thread local bss data.
llvm-svn: 104197
2010-05-20 00:49:07 +00:00
Devang Patel a08130864e Revert r104165.
llvm-svn: 104172
2010-05-19 21:58:28 +00:00
Devang Patel 0fe341e2e2 There is no need to maintain InsnsBeginScopeSet separately.
llvm-svn: 104165
2010-05-19 21:26:53 +00:00
Devang Patel 36debf8046 Do not forget to mark prcessed arguments.
llvm-svn: 103822
2010-05-14 21:55:50 +00:00
Bill Wendling 95f6ebcb37 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.

llvm-svn: 103802
2010-05-14 21:14:32 +00:00
Devang Patel e0a94bfe9f Add support to preserve type info for the variables that are removed by the optimizer.
llvm-svn: 103798
2010-05-14 21:01:35 +00:00
Daniel Dunbar 3439ed6324 Inline Asm: Ensure buffer is newline terminated to match how the text is printed.
- This is a hack, but I can't decide the best place to handle this. Chris?

llvm-svn: 103765
2010-05-14 04:31:50 +00:00
Duncan Sands 2576db727b Remove unused variable. Tweak a comment while there.
llvm-svn: 103586
2010-05-12 07:11:33 +00:00
Nathan Jeffords 76a07580ad 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.

llvm-svn: 103568
2010-05-12 04:26:09 +00:00
Devang Patel 1a0df9a80e Enable multiple Compile Units in one module.
This means now 'llvm-ld a.bc b.bc' will preserve debug info appropriately.

llvm-svn: 103439
2010-05-10 22:49:55 +00:00
Devang Patel 0625af2a88 Instead of just verifying compile unit, verify entire type, variable, namespace etc..
llvm-svn: 103327
2010-05-07 23:33:41 +00:00
Devang Patel cbe7a8508a Remove DIGlobal.
llvm-svn: 103325
2010-05-07 23:19:07 +00:00
Devang Patel 8d6a2b7428 Verify entire type descriptor not just tag.
llvm-svn: 103303
2010-05-07 21:45:47 +00:00
Devang Patel 32cc43c242 Wrap const MDNode * inside DIDescriptor.
llvm-svn: 103295
2010-05-07 20:54:48 +00:00
Devang Patel cfa8e9d45f Avoid DIDescriptor::getNode(). Use overloaded operators instead.
llvm-svn: 103272
2010-05-07 18:11:54 +00:00
Dan Gohman 7421ae48bf Disable the new unknown-location code for now. It causes a major
increase in the debug line info section, and it's causing
regressions in a gdb testsuite.

llvm-svn: 103226
2010-05-07 01:08:53 +00:00
Dan Gohman 47d04e3e41 Update LabelsBeforeInsn also, when creating unknown-position labels.
llvm-svn: 103145
2010-05-06 00:29:41 +00:00
Chris Lattner 35096e82c5 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.

llvm-svn: 103140
2010-05-06 00:05:37 +00:00
Dan Gohman 50849c63e4 Emit debug info for MachineInstrs with unknown debug locations, instead
of just letting them inherit the debug locations of adjacent instructions.

Debug info should aim to be either accurate or absent.

llvm-svn: 103135
2010-05-05 23:41:32 +00:00
Devang Patel 075e9b5d66 Set DW_AT_APPLE_omit_frame_ptr in endFunction() where MachineFunction is available all the time.
llvm-svn: 103001
2010-05-04 06:15:30 +00:00
Dale Johannesen 1ebb395cee 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.

llvm-svn: 102843
2010-05-01 16:41:11 +00:00
Devang Patel b4e3b9025c Attach AT_APPLE_optimized attribute to optimized function's debug info.
llvm-svn: 102743
2010-04-30 19:38:23 +00:00
Devang Patel 080e4fb2f0 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

llvm-svn: 102655
2010-04-29 18:52:10 +00:00
Chris Lattner 08e9e72fa9 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).

llvm-svn: 102515
2010-04-28 19:58:07 +00:00
Devang Patel 50c9431203 Emit debug info for byval parameters.
llvm-svn: 102486
2010-04-28 01:39:28 +00:00
Chris Lattner a3facc5cb5 further simplify EmitAlignment by eliminating the
ForcedAlignBits argument, tweaking the single client of it.

llvm-svn: 102484
2010-04-28 01:08:40 +00:00
Chris Lattner 72bdee4c10 remove a dead argument to EmitAlignment.
llvm-svn: 102483
2010-04-28 01:06:02 +00:00
Chris Lattner 9e06e53fc6 remove some default arguments to EmitAlignment.
llvm-svn: 102482
2010-04-28 01:05:45 +00:00
Devang Patel 173b2b9d05 Refactor.
llvm-svn: 102481
2010-04-28 01:03:09 +00:00
Devang Patel cfc76fdaf1 Use isReg(), isImm() and isFPImm().
llvm-svn: 102470
2010-04-27 22:04:41 +00:00
Devang Patel 1f34c2727d Check operand type first.
llvm-svn: 102468
2010-04-27 21:49:04 +00:00
Devang Patel 1a0bbe25e3 Ignore DBG_VALUE instructions that points to undef values.
llvm-svn: 102463
2010-04-27 20:54:45 +00:00
Devang Patel 6c74a872a8 Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
This patch fixes bug (PR6894) introduced by previous version of this patch.

llvm-svn: 102454
2010-04-27 19:46:33 +00:00
Evan Cheng eb828b6391 Do not count kill, implicit_def instructions as printed instructions.
llvm-svn: 102453
2010-04-27 19:38:45 +00:00
Chris Lattner 64d43d80be round zero-byte .zerofill directives up to 1 byte. This
should fix some "g++.dg-struct-layout-1" failures, 
rdar://7886017

llvm-svn: 102421
2010-04-27 07:41:44 +00:00
Chris Lattner 3af635a296 add a comment in verbose-asm mode indicating why a noop is being generated.
llvm-svn: 102401
2010-04-26 23:41:43 +00:00
Chris Lattner 6a5e706e3c 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

llvm-svn: 102400
2010-04-26 23:37:21 +00:00
Devang Patel bd798ce8dd Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.
llvm-svn: 102394
2010-04-26 22:54:28 +00:00
Chris Lattner f740a8ceeb 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.

llvm-svn: 102365
2010-04-26 18:46:46 +00:00
Chris Lattner e80442aa6d Revert r102300/102301, which serious broke objc apps.
llvm-svn: 102359
2010-04-26 18:30:45 +00:00
Chris Lattner 386a220f70 Fix PR6921: globals were not getting correctly rounded up to their
preferred alignment unless they were common or some other special
case.

llvm-svn: 102300
2010-04-25 05:30:43 +00:00
Dan Gohman e9135cb3fb Revert 102135, 102129, 102127, 102106, 102104, 102102, 102012, 102004,
because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.

llvm-svn: 102155
2010-04-23 01:18:53 +00:00
Devang Patel 6adc5620ab Add comment.
llvm-svn: 102129
2010-04-22 20:56:35 +00:00
Devang Patel ea2744f4dc Adjust debug range offsets for isWeakForLinker() functions.
llvm-svn: 102127
2010-04-22 20:52:00 +00:00
Devang Patel 0fde4aeedd Rename InsnAfterLabelMap and InsnBeforeLabelMap.
llvm-svn: 102106
2010-04-22 18:43:35 +00:00
Devang Patel 53f530d44c Keep track of MCSymbol used to mark beginning of a function.
llvm-svn: 102104
2010-04-22 18:39:21 +00:00
Devang Patel bae14a1cab At this point Start and End are not null.
llvm-svn: 102102
2010-04-22 18:28:58 +00:00
Devang Patel 1a6e399874 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
2010-04-21 19:08:53 +00:00
Devang Patel 0940a8085e Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
llvm-svn: 102004
2010-04-21 16:32:19 +00:00
Evan Cheng 4158a0ff6b Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
2010-04-21 03:18:23 +00:00
Chris Lattner 5100367ff3 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.

llvm-svn: 101879
2010-04-20 06:20:21 +00:00
Dan Gohman 3df671a81c Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp
responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844
2010-04-20 00:37:27 +00:00
Devang Patel 6188093cca Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag.
llvm-svn: 101805
2010-04-19 19:14:02 +00:00
Dan Gohman 53d4a08d2b Add const qualifiers to TargetLoweringObjectFile usage.
llvm-svn: 101640
2010-04-17 16:44:48 +00:00
Dan Gohman 88f7f6aeda Use const_cast instead of a C-style cast to cast away const.
llvm-svn: 101639
2010-04-17 16:43:55 +00:00
Devang Patel 12563b3495 Add support to emit dwarf ranges.
llvm-svn: 101575
2010-04-16 23:33:45 +00:00
Dan Gohman b29cda9b3c Fix a bunch of namespace polution.
llvm-svn: 101376
2010-04-15 17:08:50 +00:00
Dan Gohman bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs.
llvm-svn: 101334
2010-04-15 01:51:59 +00:00
Devang Patel 3d6c40c616 Add comment.
llvm-svn: 101317
2010-04-15 00:02:49 +00:00
Devang Patel 97bdf94da3 There is no need to track compile unit offsets if there is only one compile unit.
llvm-svn: 101315
2010-04-14 23:56:24 +00:00
Devang Patel b08ccb62d5 Remove dead code.
llvm-svn: 101314
2010-04-14 23:54:13 +00:00
Devang Patel b7eadda495 Clear MachineInstr->MCSymbol maps at the end of a function.
llvm-svn: 101202
2010-04-14 01:18:28 +00:00
Devang Patel 12d150ea43 Do not include types without any definition in pubtypes list.
llvm-svn: 101171
2010-04-13 20:35:04 +00:00
Devang Patel 541019ddec Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function.
llvm-svn: 100867
2010-04-09 16:04:20 +00:00
Chandler Carruth 825989ab63 Add a missing dependency to this library when building with CMake.
llvm-svn: 100852
2010-04-09 05:55:25 +00:00
Chris Lattner 5418dd5fda move elf section uniquing to MCContext. Along the way
merge XCore's section into MCSectionELF

llvm-svn: 100812
2010-04-08 21:26:26 +00:00
Devang Patel 359b013129 Rename a function.
llvm-svn: 100797
2010-04-08 18:43:56 +00:00
Chris Lattner 294a90d87a 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
2010-04-08 18:20:52 +00:00
Devang Patel 3ebd8931fb One instruction may start (or end) multiple lexical scopes.
There is no need to remember labels identifying regions marked by such instructions in each scope.

llvm-svn: 100781
2010-04-08 16:50:29 +00:00
Devang Patel 2abed283e5 Remove dead code.
llvm-svn: 100771
2010-04-08 15:48:02 +00:00
Devang Patel adfd4df12c Delete out of date comment.
llvm-svn: 100769
2010-04-08 15:41:13 +00:00
Devang Patel f1d5a1e994 Refactor.
llvm-svn: 100768
2010-04-08 15:37:09 +00:00
Benjamin Kramer a6769269f3 Use twines to simplify calls to report_fatal_error. For code size and readability.
llvm-svn: 100756
2010-04-08 10:44:28 +00:00
Chris Lattner 1e45789ee0 introduce a new recoverable error handling API to LLVMContext
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
2010-04-07 23:40:44 +00:00
Chris Lattner 2104b8d36e rename llvm::llvm_report_error -> llvm::report_fatal_error
llvm-svn: 100709
2010-04-07 22:58:41 +00:00
Chris Lattner b50e795369 tidy up
llvm-svn: 100700
2010-04-07 22:29:10 +00:00
Chris Lattner 29233c0458 add a comment line that got dropped
llvm-svn: 100638
2010-04-07 18:10:38 +00:00
Benjamin Kramer f2351a7a6e Remove unused method.
llvm-svn: 100620
2010-04-07 11:23:46 +00:00
Torok Edwin f8dba24a9b Workaround the breakage in r100616 by guarding all timers with
TimePassesIsEnabled. This should allow make check to pass.

llvm-svn: 100618
2010-04-07 10:44:46 +00:00
Bill Wendling fcc14141c7 Use the "NamedGroupTimer" class to categorize DWARF emission better.
llvm-svn: 100616
2010-04-07 09:28:04 +00:00
Benjamin Kramer 43c275fa56 Use raw_ostream.
llvm-svn: 100615
2010-04-07 09:26:51 +00:00
Chris Lattner 51065568cd Have the inst emitter add the !srcloc mdnode to the machine instr.
Have the asmprinter use the mdnode to scavenge a source location if
present.  Document this nonsense in langref.

llvm-svn: 100607
2010-04-07 05:38:05 +00:00
Chris Lattner d62adaa54d remove another magic number.
llvm-svn: 100606
2010-04-07 05:27:36 +00:00
Dale Johannesen 5d7f0a0fdd Move printing of target-indepedent DEBUG_VALUE comments
into AsmPrinter.  Target-dependent form is still generated
by FastISel and still handled in X86 code.

llvm-svn: 100596
2010-04-07 01:15:14 +00:00
Devang Patel 019922d1b0 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
2010-04-06 23:53:48 +00:00
John McCall 796583eec0 Fix a number of clang -Wsign-compare warnings that didn't have an obvious
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
2010-04-06 23:35:53 +00:00
Dale Johannesen b36c70913b Revert 100573, it's causing some testsuite problems.
llvm-svn: 100578
2010-04-06 22:45:26 +00:00
Dale Johannesen 85b35b6214 Move printing of DEBUG_VALUE comments to target-independent place.
There is probably a more elegant way to do this.

llvm-svn: 100573
2010-04-06 22:21:07 +00:00
Stuart Hastings 4bd3dd956f Reverting 100530 & 100531 due to regressions in the GDB test suite.
llvm-svn: 100563
2010-04-06 21:38:29 +00:00
Stuart Hastings c067196984 Revise debug info machinery to digest nested functions and classes.
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
2010-04-06 17:19:32 +00:00
Chris Lattner 92aba5a817 propagate cookie management out one layer of function calls.
llvm-svn: 100510
2010-04-06 00:58:50 +00:00
Chris Lattner 59126b2500 report errors through LLVMContext's inline asm handler if available.
llvm-svn: 100509
2010-04-06 00:55:39 +00:00
Devang Patel fc4a1db23b Remove unnecessary include.
llvm-svn: 100505
2010-04-06 00:38:32 +00:00
Chris Lattner 3b21e4d404 Give AsmParser an option to control whether it finalizes
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret

llvm-svn: 100492
2010-04-05 23:15:42 +00:00
Chris Lattner 8900ef1931 add .o file writing for inline asm in llc. Here's a silly
demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
	abc incl    %eax
	^
LLVM ERROR: Error parsing inline asm

Only problem seems to be that the parser finalizes OutStreamer 
at the end of the first inline asm, which isn't what we want.
For example:

$ cat asm.c
int foo(int X) {
 __asm__ ("incl    %0" : "+r" (X));
 return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
	subq	$8, %rsp
	movl	%edi, (%rsp)
	movl	%edi, %eax
	## InlineAsm Start
	incl    %eax
	## InlineAsm End
	movl	%eax, (%rsp)
	movl	%eax, 4(%rsp)
	addq	$8, %rsp
	ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
$ 

don't stop at inc!

llvm-svn: 100491
2010-04-05 23:11:24 +00:00
Bill Wendling 30346347b3 Output floating point representations in DWARF format. This is done by outputing
the FP encoding directly as a hex representation.

llvm-svn: 100487
2010-04-05 22:59:21 +00:00
Chris Lattner 0e45d24a4e stringref-ize the MemoryBuffer::get apis. This requires
a co-committed clang patch.

llvm-svn: 100485
2010-04-05 22:42:30 +00:00
Chris Lattner 28f2fdafcd hopefully sate the clang self host build, which is apparently
instantiating some folding set stuff that GCC isn't, requiring 
some types to not be incomplete.

I don't know if clang is right or wrong, but unbreaking the
bot is goodness.  Here's the broken build:
http://google1.osuosl.org:8011/builders/clang-x86_64-darwin10-selfhost/builds/1813/steps/compile.llvm.stage2/logs/stdio

llvm-svn: 100418
2010-04-05 06:12:01 +00:00
Chris Lattner 64a168efb6 privatize more stuff, eliminate vtables.
llvm-svn: 100410
2010-04-05 05:32:45 +00:00
Chris Lattner acda87bdb1 reprivatize now that DwarfWriter is gone.
llvm-svn: 100409
2010-04-05 05:31:04 +00:00
Chris Lattner da790ea006 prune #includes, MMI can never be null
llvm-svn: 100408
2010-04-05 05:28:23 +00:00
Chris Lattner 3f3fb970e4 prune #includes, realize the MMI can never be null.
llvm-svn: 100407
2010-04-05 05:24:55 +00:00
Chris Lattner 10cb0f4338 finally blast DwarfWriter away.
llvm-svn: 100406
2010-04-05 05:12:59 +00:00
Chris Lattner f0d6bd3ef4 change AsmPrinter to use DwarfDebug/DwarfException directly
instead of going through DwarfWriter.

llvm-svn: 100405
2010-04-05 05:11:15 +00:00
Chris Lattner f5d0636850 trim some spurious references to DwarfWriter. SDIsel really doesn't
need it anymore, so don't addRequire it.

llvm-svn: 100400
2010-04-05 04:09:20 +00:00
Chris Lattner 196dbdc160 eliminate DwarfDebug::shouldEmit, which is the same now as MMI::hasDebugInfo
llvm-svn: 100386
2010-04-05 03:52:55 +00:00
Chris Lattner d2f5062c6d fix a regression on 2009-08-17-DebugInfo.m
llvm-svn: 100385
2010-04-05 03:49:26 +00:00
Chris Lattner 7cfa70e9b3 fastisel doesn't need DwarfWriter, remove some tendricles.
llvm-svn: 100381
2010-04-05 02:19:28 +00:00
Chris Lattner 626cb66fdb just have all targets create the DwarfWriter.
llvm-svn: 100377
2010-04-05 00:42:55 +00:00
Chris Lattner eeaa6d67a2 nuke DwarfPrinter
llvm-svn: 100375
2010-04-05 00:27:29 +00:00
Chris Lattner fd79502e08 make DwarfException not inherit from DwarfPrinter.
llvm-svn: 100374
2010-04-05 00:26:50 +00:00
Chris Lattner 5a00dea332 change SizeOf to take AsmPrinter instead of TargetData,
simplifying a bunch of code.

llvm-svn: 100373
2010-04-05 00:18:22 +00:00
Chris Lattner 3a383cb7d9 1) make DIE take AsmPrinter instead of DwarfPrinter.
2) change DwarfDebug to not inherit from DwarfPrinter.

llvm-svn: 100372
2010-04-05 00:13:49 +00:00
Chris Lattner aabc6041de Move EmitFrameMoves into AsmPrinter.
llvm-svn: 100371
2010-04-04 23:41:46 +00:00
Chris Lattner 8423cae590 simplify code and reduce indentation.
llvm-svn: 100369
2010-04-04 23:31:58 +00:00
Chris Lattner 70a4fcea1e now that the magic is dispelled, move EmitSectionOffset to AsmPrinter.
llvm-svn: 100368
2010-04-04 23:25:33 +00:00
Chris Lattner 324c86600d eliminate the magic AbsoluteDebugSectionOffsets MAI hook,
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

llvm-svn: 100367
2010-04-04 23:22:29 +00:00
Chris Lattner d442aa368d only emit section labels if we have debug info, fixing a few
regtest failures.

llvm-svn: 100366
2010-04-04 23:17:54 +00:00
Chris Lattner e58b547460 I was wrong, ocaml isn't referencing 'Ldata_begin', so remove it.
llvm-svn: 100365
2010-04-04 23:10:38 +00:00
Chris Lattner 0d3f3bdd3c add some assertions to EmitSectionOffset.
llvm-svn: 100364
2010-04-04 23:06:31 +00:00
Chris Lattner 1fbf53b970 stop emitting some dead L labels.
llvm-svn: 100363
2010-04-04 23:02:02 +00:00