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1103 Commits

Author SHA1 Message Date
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
Devang Patel
5098da0a7e Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-26 22:54:28 +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
Dan Gohman
314bf7cbbf 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-23 01:18:53 +00:00
Devang Patel
c04d54527e Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 20:56:35 +00:00
Devang Patel
18ee3bb0b7 Adjust debug range offsets for isWeakForLinker() functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 20:52:00 +00:00
Devang Patel
f1dabde404 Rename InsnAfterLabelMap and InsnBeforeLabelMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 18:43:35 +00:00
Devang Patel
3547a88b50 Keep track of MCSymbol used to mark beginning of a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 18:39:21 +00:00
Devang Patel
bc655eaee0 At this point Start and End are not null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 18:28:58 +00:00
Devang Patel
708e474c2f 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 19:08:53 +00:00
Devang Patel
9cdb4109d5 Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 16:32:19 +00:00
Evan Cheng
e566763b19 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 03:18:23 +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
084751cd16 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:37:27 +00:00
Devang Patel
2a4a3b7c61 Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 19:14:02 +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
Dan Gohman
82d5eaf23e Use const_cast instead of a C-style cast to cast away const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 16:43:55 +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
Dan Gohman
b35798347e Fix a bunch of namespace polution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 17:08:50 +00:00
Dan Gohman
46510a73e9 Add const qualifiers to CodeGen's use of LLVM IR constructs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 01:51:59 +00:00
Devang Patel
f8a2e01fc7 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 00:02:49 +00:00
Devang Patel
d33402629e There is no need to track compile unit offsets if there is only one compile unit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101315 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 23:56:24 +00:00
Devang Patel
7a996b2b05 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 23:54:13 +00:00
Devang Patel
1d526c38e2 Clear MachineInstr->MCSymbol maps at the end of a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 01:18:28 +00:00
Devang Patel
50d80e394d Do not include types without any definition in pubtypes list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 20:35:04 +00:00
Devang Patel
5142471fcd Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100867 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-09 16:04:20 +00:00
Chandler Carruth
7b0138ffab Add a missing dependency to this library when building with CMake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-09 05:55:25 +00:00
Chris Lattner
74aae4726a move elf section uniquing to MCContext. Along the way 
merge XCore's section into MCSectionELF


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 21:26:26 +00:00
Devang Patel
e37b0c6c25 Rename a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 18:43:56 +00:00
Chris Lattner
d0024fec25 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 18:20:52 +00:00
Devang Patel
1c246358a0 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 16:50:29 +00:00
Devang Patel
6a5975f49f Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 15:48:02 +00:00
Devang Patel
6669b81203 Delete out of date comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 15:41:13 +00:00
Devang Patel
6122a4d1c0 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 15:37:09 +00:00
Benjamin Kramer
1bd7335a17 Use twines to simplify calls to report_fatal_error. For code size and readability. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 10:44:28 +00:00
Chris Lattner
38686bdffd 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 :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 23:40:44 +00:00
Chris Lattner
75361b69f3 rename llvm::llvm_report_error -> llvm::report_fatal_error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 22:58:41 +00:00
Chris Lattner
00d139064e tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100700 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 22:29:10 +00:00
Chris Lattner
c0561f29a8 add a comment line that got dropped 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100638 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 18:10:38 +00:00
Benjamin Kramer
96fbb3eea6 Remove unused method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 11:23:46 +00:00
Torok Edwin
9c4210794e Workaround the breakage in r100616 by guarding all timers with 
TimePassesIsEnabled. This should allow make check to pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100618 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 10:44:46 +00:00
Bill Wendling
5f017e8086 Use the "NamedGroupTimer" class to categorize DWARF emission better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 09:28:04 +00:00
Benjamin Kramer
a592e671ee Use raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 09:26:51 +00:00
Chris Lattner
cf9a415182 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100607 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 05:38:05 +00:00
Chris Lattner
fee455ea6a remove another magic number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 05:27:36 +00:00
Dale Johannesen
343b42e428 Move printing of target-indepedent DEBUG_VALUE comments 
into AsmPrinter.  Target-dependent form is still generated
by FastISel and still handled in X86 code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100596 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 01:15:14 +00:00
Devang Patel
5f0940002a 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-06 23:53:48 +00:00
John McCall
795ee9dd1e 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-06 23:35:53 +00:00