19c1a56287
Produce a __debug_frame section on darwin ARM when appropriate.
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llvm-svn: 131151
2011-05-10 21:04:45 +00:00
fdc3e6fab6
Use .cfi_sections to put the unwind info in .debug_frame when possible. With
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this clang will use .debug_frame in, for example,
clang -g -c -m32 test.c
This matches gcc's behaviour. It looks like .debug_frame is a bit bigger
than .eh_frame, but has the big advantage of not being allocated.
llvm-svn: 131140
2011-05-10 18:39:09 +00:00
705d25a1f4
Nothing else uses this label.
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llvm-svn: 130989
2011-05-06 15:44:29 +00:00
a716096677
Dead code elimination.
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llvm-svn: 130984
2011-05-06 14:56:22 +00:00
ec0a3a0bbf
Remove the DwarfTable enum.
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llvm-svn: 130959
2011-05-05 22:14:31 +00:00
59b6bfdbc6
Implement a really simple DwarfSjLjException.
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llvm-svn: 130947
2011-05-05 20:48:31 +00:00
240c96e2ca
List all exception types in a switch.
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llvm-svn: 130944
2011-05-05 19:48:34 +00:00
124ae13421
Hoist MCLineEntry construction AsmPrinter so that anyone who derives from AsmPrinter can have line number entries.
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PR 9810
llvm-svn: 130518
2011-04-29 18:00:54 +00:00
b7a012a282
Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.
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llvm-svn: 130501
2011-04-29 14:14:06 +00:00
3e021533cd
Teach dwarf writer to handle complex address expression for .debug_loc entries.
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This fixes clang generated blocks' variables' debug info.
Radar 9279956.
llvm-svn: 130373
2011-04-28 02:22:40 +00:00
e3745fdcf3
Revert r130178. It turned out to be not the optimal path to emit complex location expressions.
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llvm-svn: 130326
2011-04-27 20:29:27 +00:00
a4fa5ce911
Print the label if we will use it in debug_frame.
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llvm-svn: 130232
2011-04-26 19:26:53 +00:00
189ca1498f
don't emit the symbol name twice for local bss and common
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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
80cb3cb1d6
Print all the moves at a given label instead of just the first one.
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Remove previous DwarfCFI hack.
llvm-svn: 130187
2011-04-26 03:58:56 +00:00
cae2fbd6fc
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.
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llvm-svn: 130178
2011-04-26 00:12:46 +00:00
2266aa84a1
Refactor.
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llvm-svn: 129938
2011-04-21 21:07:35 +00:00
17740e70d5
Reduce clutter in asm output. Do not emit source location as comment for each instruction.
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llvm-svn: 129715
2011-04-18 20:26:49 +00:00
beb74c3f00
Some refactoring suggested by Anton Korobeynikov.
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llvm-svn: 129600
2011-04-15 20:32:03 +00:00
a01cdb0e37
Add 129518 back with a fix for when we are producing eh just because of debug info.
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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
b5e3e9dd27
Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the"
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It broke several builds.
llvm-svn: 129557
2011-04-15 03:35:57 +00:00
aa2a7cd828
Change ELF systems to use CFI for producing the EH tables. This reduces the
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size of the clang binary in Debug builds from 690MB to 679MB.
llvm-svn: 129518
2011-04-14 15:18:53 +00:00
7dd4d6e2e8
Print visibility info for external variables.
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llvm-svn: 128887
2011-04-05 15:51:32 +00:00
1900c73a97
Tidy up. 80 columns and trailing whitespace.
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llvm-svn: 128504
2011-03-29 23:20:22 +00:00
a7ec2dcefd
Some first rudimentary support for ARM EHABI: print exception table in "text mode".
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llvm-svn: 127099
2011-03-05 18:43:15 +00:00
bf83659d11
Omit private_extern declarations of extern symbols; followup to
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r124468. Patch by Rafael Avila de Espindola!
llvm-svn: 126297
2011-02-23 02:27:05 +00:00
75b5d27b84
Spelling fix: consequtive -> consecutive.
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llvm-svn: 125563
2011-02-15 09:23:02 +00:00
6d4d8581bc
Assert on bad jump tables.
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llvm-svn: 125225
2011-02-09 21:52:06 +00:00
6c17d54891
Print the visibility of declarations.
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llvm-svn: 124468
2011-01-28 03:20:10 +00:00
9be547cfd3
Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.
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llvm-svn: 123476
2011-01-14 21:58:08 +00:00
61d167e92b
Split stuff as a preparation for CFI directives-based frame information emission
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llvm-svn: 123473
2011-01-14 21:57:45 +00:00
bf0aa927cc
split dom frontier handling stuff out to its own DominanceFrontier header,
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so that Dominators.h is *just* domtree. Also prune #includes a bit.
llvm-svn: 122714
2011-01-02 22:09:33 +00:00
f8d180b808
remove the verbose-asm "constant pool double" comments that we were printing
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for each constant pool entry. Using WriteTypeSymbolic here takes time
proportional to the size of the module, for each constant pool entry.
This speeds up -verbose-asm llc on 252.eon (a random testcase at my disposal)
from 4.4s to 2.137s. llc takes 2.11s with asm-verbose off, so this is now a
pretty reasonable cost for verbose comments.
llvm-svn: 121691
2010-12-13 07:35:47 +00:00
2a7f6fd9d4
refactor the interface to EmitInlineAsm a bit, no functionality change.
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llvm-svn: 119482
2010-11-17 07:53:40 +00:00
b5694e702c
s/beginScope/beginInstruction/g
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s/endScope/endInstruction/g
llvm-svn: 117376
2010-10-26 17:49:02 +00:00
9f06f911d1
the latest assembler that runs on powerpc 10.4 machines doesn't
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support aligned comm. Detect when compiling for 10.4 and don't
emit an alignment for comm. THis will hopefully fix PR8198.
llvm-svn: 114817
2010-09-27 06:44:54 +00:00
419d0aa0ed
add a comment about where this should eventually move.
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llvm-svn: 113117
2010-09-05 20:33:40 +00:00
854ad26ae2
There is no need to use .set here.
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Thanks Chris!
llvm-svn: 112900
2010-09-02 23:01:10 +00:00
da3ef85460
Fix .debug_range for linux. Patch by Krister Wombell.
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llvm-svn: 112830
2010-09-02 16:43:44 +00:00
13ee795c42
remove unions from LLVM IR. They are severely buggy and not
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being actively maintained, improved, or extended.
llvm-svn: 112356
2010-08-28 04:09:24 +00:00
578ee4070c
Create the new linker type "linker_private_weak_def_auto".
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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).
llvm-svn: 111684
2010-08-20 22:05:50 +00:00
0d323aef46
Improve whitespace.
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llvm-svn: 111384
2010-08-18 18:41:13 +00:00
a7aed18624
Reapply r110396, with fixes to appease the Linux buildbot gods.
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llvm-svn: 110460
2010-08-06 18:33:48 +00:00
bda59bd247
Revert r110396 to fix buildbots.
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llvm-svn: 110410
2010-08-06 00:23:35 +00:00
755aceb5d0
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
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ID member as the sole unique type identifier. Clean up APIs related to this change.
llvm-svn: 110396
2010-08-05 23:42:04 +00:00
2392287306
Change this llvm_unreachable to report_fatal_error, since it can
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be triggered by valid, if dubious, IR.
llvm-svn: 110240
2010-08-04 18:51:09 +00:00
ac67e99d53
Use isPrologLabel() instead of checking the opcode directly.
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llvm-svn: 108628
2010-07-17 19:18:44 +00:00
bf8370ff36
Consider this function:
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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.
llvm-svn: 108568
2010-07-16 22:51:10 +00:00
499f797cdd
Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and
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thus is a much more meaningful name.
llvm-svn: 108563
2010-07-16 22:20:36 +00:00
37c42a3d02
Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
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TII::isMoveInstr is going tobe completely removed.
llvm-svn: 108507
2010-07-16 04:45:42 +00:00
28fd6785bc
a more graceful fix for test/Other/inline-asm-newline-terminator.ll,
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follow on to r103765
llvm-svn: 108390
2010-07-15 00:37:34 +00:00
Rafael Espindola