ddec6838a9
Add verbose EH table printing to SjLj exception tables.
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llvm-svn: 133561
2011-06-21 22:40:24 +00:00
a8339eb0d0
Improve the comment printing for the EH table. This gives a much more detailed
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explanation of what the EH table describes.
llvm-svn: 133559
2011-06-21 22:30:20 +00:00
6002068c13
Fix a FIXME by making GlobalVariable::getInitializer() return a
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const Constant *.
llvm-svn: 133400
2011-06-19 18:37:11 +00:00
ab20567227
Handle jump tables. Test to follow soon.
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llvm-svn: 133083
2011-06-15 21:00:28 +00:00
8a3264ad48
Revert r133004 ; it's breaking nightly tests.
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llvm-svn: 133007
2011-06-14 19:30:33 +00:00
5e85158321
Partial revert of 132882.
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Dan noted that this would work on the case shown on the commit message. I think
the case that was failing was a bb ending with a redundant conditional jump:
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jne foo
foo:
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I was unable to find any such case in the tests or in a debug build of clang,
so I will revert this part of the patch and watch the bots.
llvm-svn: 133004
2011-06-14 18:12:31 +00:00
844485af13
Implement Jakob's suggestion on how to detect fall thought without calling
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AnalyzeBranch.
llvm-svn: 132981
2011-06-14 06:08:32 +00:00
2f3c2fe7c5
Really fix the fall-through logic.
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Add a triple to the tests.
llvm-svn: 132885
2011-06-12 05:57:01 +00:00
653a07206d
Fix silly bug I introduce in the previous commit. Fixes debug builds.
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llvm-svn: 132883
2011-06-12 05:26:32 +00:00
defd4b0875
AnalyzeBranch doesn't change which successors a bb has, just the order
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we try to branch to them.
Before we were creating successor lists with duplicated entries. Fixing that
found a bug in isBlockOnlyReachableByFallthrough that would causes it to
return the wrong answer for
-----------
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jne foo
jmp bar
foo:
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llvm-svn: 132882
2011-06-12 03:20:32 +00:00
b90a43d266
Ensure that EmitGlobalVariable is correctly differentiating between declarations
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and definitions when emitting global variables. This was causing global
declarations to be emitted as if they were definitions.
Fixes <rdar://problem/9429892>.
llvm-svn: 132825
2011-06-10 00:53:15 +00:00
440c3b7306
Use path API for path concatenation.
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llvm-svn: 132668
2011-06-05 14:36:47 +00:00
e7181b5fdb
A DBG_VALUE that truncates a range does not start another dbg value range.
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llvm-svn: 132433
2011-06-01 23:00:17 +00:00
324f843107
Do not drop constant values when a variable's content is described using .debug_loc entries.
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llvm-svn: 132427
2011-06-01 22:03:25 +00:00
562c74284f
Incomplete type may not have corresponding DIE, so do not check DIEEntry eagerly.
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llvm-svn: 132377
2011-06-01 00:23:24 +00:00
1cb8ab456c
Refactor.
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llvm-svn: 132373
2011-05-31 23:30:30 +00:00
e9853f25ad
Include global types, that are referenced through local variables, in debug_pubtypes list.
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llvm-svn: 132371
2011-05-31 22:56:51 +00:00
a575226fd8
Emit the handler's data area. For GCC-style exceptions under Win64, the
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handler's data area starts with a 4-byte reference to the personality
function, followed by the DWARF LSDA.
llvm-svn: 132302
2011-05-30 00:13:34 +00:00
b025724b46
When generating against the Win64 EH scheme, set the handler to the GCC-specific
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handler.
At this moment, only GCC-style exceptions are supported. Other kinds
of exceptions, including "traditional" SEH and Microsoft Visual C++ exceptions,
need more work--and an compiler exception model that isn't specific to
GCC-style exceptions!
In particular, I imagine that it would be possible to mix "traditional" SEH
with GCC-style EH or Microsoft C++ EH. Currently LLVM has no way (beyond some
target-specific defaults and whole-module compiler switches) of knowing which
scheme to use when.
llvm-svn: 132283
2011-05-29 04:28:35 +00:00
5638b9f01e
When generating code for Win64 EH, emit StartProc and EndProc directives.
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llvm-svn: 132250
2011-05-28 04:21:04 +00:00
8816bbc02d
Select DW_AT_const_value size based on global variable size.
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llvm-svn: 132239
2011-05-28 00:39:18 +00:00
836f7db2cc
Fix the root cause of the bootstrap failure:
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There was no way to check if a given register/mode pair was valid. We now return
an error code (-2) instead of asserting. If anyone thinks that an assert
at this point is really needed, we can autogen a hasValidDwarfRegNum instead.
llvm-svn: 132236
2011-05-28 00:13:01 +00:00
91ed799eb4
Stub out support for Win64-style exceptions. Note that this is merely using
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the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!
llvm-svn: 132234
2011-05-27 23:47:32 +00:00
b8e08be77d
Fix a regression I recently introduced by removing DwarfRegNum of
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subregisters:
When a value is in a subregister, at least report the location as being
the superregister. We should extend the .td files to encode the bit
range so that we can produce a DW_OP_bit_piece.
llvm-svn: 132224
2011-05-27 22:15:01 +00:00
d23bfb8a7a
Make size computation less brittle.
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llvm-svn: 132222
2011-05-27 22:05:41 +00:00
39e22eae49
Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form.
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llvm-svn: 132206
2011-05-27 19:13:26 +00:00
f1d04706fb
Handle signed types gracefully.
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This fixes regressions reported by buildbots as a fallout of r132193.
llvm-svn: 132197
2011-05-27 18:15:52 +00:00
3c6aed2d98
Select DW_AT_const_value size based on variable size.
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llvm-svn: 132193
2011-05-27 16:45:18 +00:00
fc9bae6f8b
Replace the -unwind-tables option with a per function flag. This is more
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LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.
llvm-svn: 132033
2011-05-25 03:44:17 +00:00
354fa0798f
Fix debug info for blocks' variable.
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llvm-svn: 131940
2011-05-24 00:22:25 +00:00
faaa16ea2c
Remove unnecessary comment.
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llvm-svn: 131936
2011-05-23 23:16:14 +00:00
8aded86edb
No reason not to allow defining the CFA as a reg w/ offset zero.
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llvm-svn: 131760
2011-05-20 21:50:09 +00:00
17c1d13ee4
Fix typo.
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llvm-svn: 131757
2011-05-20 21:35:39 +00:00
83c4bb157a
Add support for frame info use of the .cfi_def_cfa directive.
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llvm-svn: 131756
2011-05-20 21:23:17 +00:00
12419aee7a
Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.
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s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g
llvm-svn: 131244
2011-05-12 21:29:42 +00:00
2409e7843b
Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
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llvm-svn: 131238
2011-05-12 19:06:16 +00:00
34a6620748
Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
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llvm-svn: 131194
2011-05-11 19:22:19 +00:00
a678098f24
Initialize moveTypeModule.
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llvm-svn: 131157
2011-05-10 21:54:59 +00:00
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
2fe0ee1ce2
Rename DwarfRequiresRelocationForStmtList to
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DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.
llvm-svn: 131148
2011-05-10 20:35:05 +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
589845d887
Do not ignore InlinedAt while walking up scope chain to find subprogram node.
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llvm-svn: 131106
2011-05-09 22:14:49 +00:00
17b532728b
Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
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llvm-svn: 130991
2011-05-06 16:57:54 +00:00
705d25a1f4
Nothing else uses this label.
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llvm-svn: 130989
2011-05-06 15:44:29 +00:00
6e4fa20efb
Yet more dead code.
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llvm-svn: 130988
2011-05-06 15:31:55 +00:00
d06c2c1b81
Update comments.
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llvm-svn: 130987
2011-05-06 15:28:56 +00:00
4bfa978ca5
More dead code elimination.
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llvm-svn: 130985
2011-05-06 15:22:26 +00:00
a716096677
Dead code elimination.
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llvm-svn: 130984
2011-05-06 14:56:22 +00:00
bb237c72a6
Remove DwarfTableException.
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llvm-svn: 130964
2011-05-05 23:19:54 +00:00
ec0a3a0bbf
Remove the DwarfTable enum.
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llvm-svn: 130959
2011-05-05 22:14:31 +00:00
Bill Wendling