6c74a872a8
Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
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This patch fixes bug (PR6894) introduced by previous version of this patch.
llvm-svn: 102454
2010-04-27 19:46:33 +00:00
eb828b6391
Do not count kill, implicit_def instructions as printed instructions.
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llvm-svn: 102453
2010-04-27 19:38:45 +00:00
64d43d80be
round zero-byte .zerofill directives up to 1 byte. This
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should fix some "g++.dg-struct-layout-1" failures,
rdar://7886017
llvm-svn: 102421
2010-04-27 07:41:44 +00:00
3af635a296
add a comment in verbose-asm mode indicating why a noop is being generated.
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llvm-svn: 102401
2010-04-26 23:41:43 +00:00
6a5e706e3c
on darwin empty functions need to codegen into something of non-zero length,
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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
bd798ce8dd
Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.
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llvm-svn: 102394
2010-04-26 22:54:28 +00:00
f740a8ceeb
fix PR6921 a different way. Intead of increasing the
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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
e80442aa6d
Revert r102300/102301, which serious broke objc apps.
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llvm-svn: 102359
2010-04-26 18:30:45 +00:00
386a220f70
Fix PR6921: globals were not getting correctly rounded up to their
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preferred alignment unless they were common or some other special
case.
llvm-svn: 102300
2010-04-25 05:30:43 +00:00
e9135cb3fb
Revert 102135, 102129, 102127, 102106, 102104, 102102, 102012, 102004,
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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
6adc5620ab
Add comment.
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llvm-svn: 102129
2010-04-22 20:56:35 +00:00
ea2744f4dc
Adjust debug range offsets for isWeakForLinker() functions.
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llvm-svn: 102127
2010-04-22 20:52:00 +00:00
0fde4aeedd
Rename InsnAfterLabelMap and InsnBeforeLabelMap.
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llvm-svn: 102106
2010-04-22 18:43:35 +00:00
53f530d44c
Keep track of MCSymbol used to mark beginning of a function.
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llvm-svn: 102104
2010-04-22 18:39:21 +00:00
bae14a1cab
At this point Start and End are not null.
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llvm-svn: 102102
2010-04-22 18:28:58 +00:00
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.
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llvm-svn: 102012
2010-04-21 19:08:53 +00:00
0940a8085e
Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
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llvm-svn: 102004
2010-04-21 16:32:19 +00:00
4158a0ff6b
Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
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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
5100367ff3
Bill's change in r95336 broke empty aggregates embedded
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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
3df671a81c
Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp
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responsible for figuring out what that's supposed to be on its own.
llvm-svn: 101844
2010-04-20 00:37:27 +00:00
6188093cca
Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag.
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llvm-svn: 101805
2010-04-19 19:14:02 +00:00
53d4a08d2b
Add const qualifiers to TargetLoweringObjectFile usage.
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llvm-svn: 101640
2010-04-17 16:44:48 +00:00
88f7f6aeda
Use const_cast instead of a C-style cast to cast away const.
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llvm-svn: 101639
2010-04-17 16:43:55 +00:00
12563b3495
Add support to emit dwarf ranges.
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llvm-svn: 101575
2010-04-16 23:33:45 +00:00
b29cda9b3c
Fix a bunch of namespace polution.
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llvm-svn: 101376
2010-04-15 17:08:50 +00:00
bcaf681cde
Add const qualifiers to CodeGen's use of LLVM IR constructs.
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llvm-svn: 101334
2010-04-15 01:51:59 +00:00
3d6c40c616
Add comment.
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llvm-svn: 101317
2010-04-15 00:02:49 +00:00
97bdf94da3
There is no need to track compile unit offsets if there is only one compile unit.
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llvm-svn: 101315
2010-04-14 23:56:24 +00:00
b08ccb62d5
Remove dead code.
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llvm-svn: 101314
2010-04-14 23:54:13 +00:00
b7eadda495
Clear MachineInstr->MCSymbol maps at the end of a function.
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llvm-svn: 101202
2010-04-14 01:18:28 +00:00
12d150ea43
Do not include types without any definition in pubtypes list.
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llvm-svn: 101171
2010-04-13 20:35:04 +00:00
541019ddec
Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function.
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llvm-svn: 100867
2010-04-09 16:04:20 +00:00
825989ab63
Add a missing dependency to this library when building with CMake.
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llvm-svn: 100852
2010-04-09 05:55:25 +00:00
5418dd5fda
move elf section uniquing to MCContext. Along the way
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merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
359b013129
Rename a function.
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llvm-svn: 100797
2010-04-08 18:43:56 +00:00
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.
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llvm-svn: 100792
2010-04-08 18:20:52 +00:00
3ebd8931fb
One instruction may start (or end) multiple lexical scopes.
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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
2abed283e5
Remove dead code.
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llvm-svn: 100771
2010-04-08 15:48:02 +00:00
adfd4df12c
Delete out of date comment.
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llvm-svn: 100769
2010-04-08 15:41:13 +00:00
f1d5a1e994
Refactor.
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llvm-svn: 100768
2010-04-08 15:37:09 +00:00
a6769269f3
Use twines to simplify calls to report_fatal_error. For code size and readability.
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llvm-svn: 100756
2010-04-08 10:44:28 +00:00
1e45789ee0
introduce a new recoverable error handling API to LLVMContext
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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
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
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llvm-svn: 100709
2010-04-07 22:58:41 +00:00
b50e795369
tidy up
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llvm-svn: 100700
2010-04-07 22:29:10 +00:00
29233c0458
add a comment line that got dropped
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llvm-svn: 100638
2010-04-07 18:10:38 +00:00
f2351a7a6e
Remove unused method.
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llvm-svn: 100620
2010-04-07 11:23:46 +00:00
f8dba24a9b
Workaround the breakage in r100616 by guarding all timers with
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TimePassesIsEnabled. This should allow make check to pass.
llvm-svn: 100618
2010-04-07 10:44:46 +00:00
fcc14141c7
Use the "NamedGroupTimer" class to categorize DWARF emission better.
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llvm-svn: 100616
2010-04-07 09:28:04 +00:00
43c275fa56
Use raw_ostream.
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llvm-svn: 100615
2010-04-07 09:26:51 +00:00
51065568cd
Have the inst emitter add the !srcloc mdnode to the machine instr.
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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
Devang Patel