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1311 Commits

Author SHA1 Message Date
Devang Patel
188fd17fe4 Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp 
llvm-svn: 130991
 2011-05-06 16:57:54 +00:00
Rafael Espindola
a4de174c00 Nothing else uses this label. 
llvm-svn: 130989
 2011-05-06 15:44:29 +00:00
Rafael Espindola
ef239d2fdc Yet more dead code. 
llvm-svn: 130988
 2011-05-06 15:31:55 +00:00
Rafael Espindola
4228ece8fd Update comments. 
llvm-svn: 130987
 2011-05-06 15:28:56 +00:00
Rafael Espindola
9b57a8739e More dead code elimination. 
llvm-svn: 130985
 2011-05-06 15:22:26 +00:00
Rafael Espindola
59462d8ae3 Dead code elimination. 
llvm-svn: 130984
 2011-05-06 14:56:22 +00:00
Rafael Espindola
37aa9169a8 Remove DwarfTableException. 
llvm-svn: 130964
 2011-05-05 23:19:54 +00:00
Rafael Espindola
f109f01ec2 Remove the DwarfTable enum. 
llvm-svn: 130959
 2011-05-05 22:14:31 +00:00
Devang Patel
99147805e4 Remove little used statistical counter. 
llvm-svn: 130955
 2011-05-05 22:00:08 +00:00
Rafael Espindola
a84abb2226 Implement a really simple DwarfSjLjException. 
llvm-svn: 130947
 2011-05-05 20:48:31 +00:00
Rafael Espindola
a99111bae9 List all exception types in a switch. 
llvm-svn: 130944
 2011-05-05 19:48:34 +00:00
Devang Patel
3d0c5dc9fd If debug info for inlined function is missing then handle it gracefully. 
llvm-svn: 130933
 2011-05-05 17:54:26 +00:00
Bill Wendling
7a13f3bde3 Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one 
who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>

llvm-svn: 130918
 2011-05-05 06:49:15 +00:00
Rafael Espindola
8346c59e6a Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but 
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.

While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.

llvm-svn: 130846
 2011-05-04 17:44:06 +00:00
Devang Patel
a6e69a5541 Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite. 
llvm-svn: 130842
 2011-05-04 16:34:02 +00:00
Devang Patel
3506ad5c7f Even if the subprogram is going to use AT_specification, emit DW_AT_MIPS_linkage_name. This helps gdb and fixes var-path-expr.exp regression reported by gdb testsuite. 
llvm-svn: 130794
 2011-05-03 21:50:34 +00:00
Devang Patel
2d8861a690 If the front end has emitted llvm.dbg.cu and other debug info anchors (clang does it now) then use them directly. This saves one scan of entire module, to collect debug info, which in turns saves few machine cycles at compile time. 
llvm-svn: 130759
 2011-05-03 16:45:22 +00:00
Devang Patel
7d7ac5512a Emit debug info for global variables first. 
This works around a limitation in gdb which is reported by following inherit.exp test failures from gdb testsuite.

gdb.cp/inherit.exp: print g_vB.vB::vb
gdb.cp/inherit.exp: print g_vB.vB::vx
gdb.cp/inherit.exp: print g_vC.vC::vc
gdb.cp/inherit.exp: print g_vC.vC::vx
gdb.cp/inherit.exp: print g_vD.vB::vb
...

llvm-svn: 130702
 2011-05-02 18:19:17 +00:00
Rafael Espindola
8ef7012675 Only produce the eh_frame section if we have at least one personality function. 
llvm-svn: 130692
 2011-05-02 15:49:52 +00:00
Rafael Espindola
eb5d0cb4f4 GCC uses a different encoding of pointers in the FDE when using 
-fno-dwarf2-cfi-asm. Implement the same behavior.

llvm-svn: 130637
 2011-05-01 04:49:54 +00:00
Devang Patel
acce3eb6b2 Hoist MCLineEntry construction AsmPrinter so that anyone who derives from AsmPrinter can have line number entries. 
PR 9810

llvm-svn: 130518
 2011-04-29 18:00:54 +00:00
Rafael Espindola
7c632e0001 The last hack for producing bit identical output with cfi on OS X. 
llvm-svn: 130504
 2011-04-29 15:09:53 +00:00
Rafael Espindola
16455286cb Change DwarfCFIException's member variables to track what it actually 
emmits: .cfi_personality, .cfi_lsda and the moves.

llvm-svn: 130503
 2011-04-29 14:48:51 +00:00
Rafael Espindola
16b23d9ff7 Factor some code to needsCFIMoves. Avoid printing moves when we don't have to. 
llvm-svn: 130501
 2011-04-29 14:14:06 +00:00
Devang Patel
900ceb725b Teach dwarf writer to handle complex address expression for .debug_loc entries. 
This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373
 2011-04-28 02:22:40 +00:00
Rafael Espindola
36e419b524 Remove unnecessary argument. 
llvm-svn: 130343
 2011-04-27 23:17:57 +00:00
Rafael Espindola
0525497a16 Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and 
give it a bit more responsibility. Also implement it for MachO.

If hacked to use cfi, 32 bit MachO will produce

.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr

and 64 bit will produce

.cfi_presonality ___gxx_personality_v0

The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.

llvm-svn: 130341
 2011-04-27 23:08:15 +00:00
Devang Patel
42736cb058 Simplify handling of variables with complex address (i.e. blocks variables) 
llvm-svn: 130339
 2011-04-27 22:45:24 +00:00
Devang Patel
42f4a7ff92 Revert r130178. It turned out to be not the optimal path to emit complex location expressions. 
llvm-svn: 130326
 2011-04-27 20:29:27 +00:00
Rafael Espindola
e238ffe4ba Print the label if we will use it in debug_frame. 
llvm-svn: 130232
 2011-04-26 19:26:53 +00:00
Devang Patel
09b1585aac Refactor code. Keep dwarf register operation selection logic at one place. 
llvm-svn: 130231
 2011-04-26 19:06:18 +00:00
Chris Lattner
37fec9f729 don't emit the symbol name twice for local bss and common 
symbols.  For example, don't emit:
        .comm   _i,4,2                  ## @i
                                        ## @i

instead emit:
        .comm   _i,4,2                  ## @i

llvm-svn: 130192
 2011-04-26 06:14:13 +00:00
Rafael Espindola
59c3a084c6 Print all the moves at a given label instead of just the first one. 
Remove previous DwarfCFI hack.

llvm-svn: 130187
 2011-04-26 03:58:56 +00:00
Devang Patel
4969322bc4 Let dwarf writer allocate extra space in the debug location expression. This space, if requested, will be used for complex addresses of the Blocks' variables. 
llvm-svn: 130178
 2011-04-26 00:12:46 +00:00
Devang Patel
3da97b7d34 Rename a local variable. 
llvm-svn: 130171
 2011-04-25 23:05:21 +00:00
Devang Patel
e28211b031 Rename a method to match what it really does. 
s/addVariableAddress/addFrameVariableAddress/g

llvm-svn: 130170
 2011-04-25 23:02:17 +00:00
Devang Patel
b1b33d6569 Do not drop a variable's complex address if it is not based on frame base. 
Observed this while reading code, so I do not have a test case handy here.

llvm-svn: 130167
 2011-04-25 22:52:55 +00:00
Rafael Espindola
a14f5303dd Simplify the logic. Noticed by aKor. 
llvm-svn: 130116
 2011-04-24 19:55:34 +00:00
Rafael Espindola
8c824c73b6 Synchronize the conditions for producing a .cfi_startproc and a .cfi_endproc. 
Fixes PR9787.

llvm-svn: 130115
 2011-04-24 19:00:34 +00:00
Devang Patel
929bbb6bf9 Let front-end tie subprogram declaration with subprogram definition directly. 
llvm-svn: 130028
 2011-04-22 23:10:17 +00:00
Devang Patel
6aac901f77 Do not leak argument's DbgVariables. 
llvm-svn: 130004
 2011-04-22 18:09:57 +00:00
Devang Patel
4f25432e4e Refactor. 
llvm-svn: 129938
 2011-04-21 21:07:35 +00:00
Devang Patel
a31b73427e Add comment in output stream. 
llvm-svn: 129921
 2011-04-21 17:50:24 +00:00
Rafael Espindola
09e9797728 Remove unused arguments. 
llvm-svn: 129844
 2011-04-20 03:08:09 +00:00
Devang Patel
7220c1a021 Reduce clutter in asm output. Do not emit source location as comment for each instruction. 
llvm-svn: 129715
 2011-04-18 20:26:49 +00:00
Benjamin Kramer
0b3416e2f5 Remove unused variable. 
llvm-svn: 129639
 2011-04-16 10:30:47 +00:00
Rafael Espindola
9e5aaa3b78 Put each personality function in a section. This fixes the gnu ld warning: 
error in foo.o; no .eh_frame_hdr table will be created.

llvm-svn: 129635
 2011-04-16 03:51:21 +00:00
Devang Patel
eddab1d186 Introduce support to encode Objective-C property information in debugging information generated for an interface. 
llvm-svn: 129624
 2011-04-16 00:11:51 +00:00
Rafael Espindola
694ad2f25c Some refactoring suggested by Anton Korobeynikov. 
llvm-svn: 129600
 2011-04-15 20:32:03 +00:00
Rafael Espindola
99831068c8 Add 129518 back with a fix for when we are producing eh just because of debug info. 
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129571
 2011-04-15 15:11:06 +00:00