Commit Graph

1349 Commits

Author SHA1 Message Date
Jay Foad
7d715dfe6d Fix a FIXME by making GlobalVariable::getInitializer() return a
const Constant *.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19 18:37:11 +00:00
Rafael Espindola
aeb6da46ce Handle jump tables. Test to follow soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133083 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 21:00:28 +00:00
Eli Friedman
0fc3015ae8 Revert r133004 ; it's breaking nightly tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14 19:30:33 +00:00
Rafael Espindola
b8018d8f88 Partial revert of 132882.
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:

...
jne foo

foo:
...

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14 18:12:31 +00:00
Rafael Espindola
f5b5c5156c Implement Jakob's suggestion on how to detect fall thought without calling
AnalyzeBranch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132981 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14 06:08:32 +00:00
Rafael Espindola
1edc08b09f Really fix the fall-through logic.
Add a triple to the tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12 05:57:01 +00:00
Rafael Espindola
571e20fc50 Fix silly bug I introduce in the previous commit. Fixes debug builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12 05:26:32 +00:00
Rafael Espindola
4509ec42b8 AnalyzeBranch doesn't change which successors a bb has, just the order
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

-----------
...
jne foo
jmp bar

foo:
----------

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132882 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12 03:20:32 +00:00
Chad Rosier
348d542199 Ensure that EmitGlobalVariable is correctly differentiating between declarations
and definitions when emitting global variables.  This was causing global 
declarations to be emitted as if they were definitions.
Fixes <rdar://problem/9429892>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 00:53:15 +00:00
Benjamin Kramer
ab5f788f67 Use path API for path concatenation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-05 14:36:47 +00:00
Devang Patel
4ada1d7910 A DBG_VALUE that truncates a range does not start another dbg value range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132433 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 23:00:17 +00:00
Devang Patel
c432907eca Do not drop constant values when a variable's content is described using .debug_loc entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132427 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 22:03:25 +00:00
Devang Patel
c20bdf194a Incomplete type may not have corresponding DIE, so do not check DIEEntry eagerly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 00:23:24 +00:00
Devang Patel
66658e4dff Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 23:30:30 +00:00
Devang Patel
e9ae06ca98 Include global types, that are referenced through local variables, in debug_pubtypes list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 22:56:51 +00:00
Charles Davis
59ed4151d8 Emit the handler's data area. For GCC-style exceptions under Win64, the
handler's data area starts with a 4-byte reference to the personality
function, followed by the DWARF LSDA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132302 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-30 00:13:34 +00:00
Charles Davis
12e3349de9 When generating against the Win64 EH scheme, set the handler to the GCC-specific
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132283 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29 04:28:35 +00:00
Charles Davis
f46337004a When generating code for Win64 EH, emit StartProc and EndProc directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132250 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 04:21:04 +00:00
Devang Patel
d6a8136e66 Select DW_AT_const_value size based on global variable size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132239 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 00:39:18 +00:00
Rafael Espindola
7bf114c1bd Fix the root cause of the bootstrap failure:
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 00:13:01 +00:00
Charles Davis
d652b1368b Stub out support for Win64-style exceptions. Note that this is merely using
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 23:47:32 +00:00
Rafael Espindola
37afca128d Fix a regression I recently introduced by removing DwarfRegNum of
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132224 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 22:15:01 +00:00
Rafael Espindola
5b23b7fe31 Make size computation less brittle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 22:05:41 +00:00
Devang Patel
045c1d4e48 Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132206 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 19:13:26 +00:00
Devang Patel
72f0d9cdef Handle signed types gracefully.
This fixes regressions reported by buildbots as a fallout of r132193.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 18:15:52 +00:00
Devang Patel
b58128e2b2 Select DW_AT_const_value size based on variable size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132193 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 16:45:18 +00:00
Rafael Espindola
fc2bb8c444 Replace the -unwind-tables option with a per function flag. This is more
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25 03:44:17 +00:00
Devang Patel
a9b324be9c Fix debug info for blocks' variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131940 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 00:22:25 +00:00
Devang Patel
c481b70a6a Remove unnecessary comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131936 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-23 23:16:14 +00:00
Jim Grosbach
958b68140e No reason not to allow defining the CFA as a reg w/ offset zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20 21:50:09 +00:00
Jim Grosbach
1585ce7e8c Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131757 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20 21:35:39 +00:00
Jim Grosbach
2b6f7117f5 Add support for frame info use of the .cfi_def_cfa directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20 21:23:17 +00:00
Devang Patel
201e6cdc39 Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12 21:29:42 +00:00
Devang Patel
b11f80e94b Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12 19:06:16 +00:00
Devang Patel
4243e67bd5 Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131194 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11 19:22:19 +00:00
Rafael Espindola
354c82bdf5 Initialize moveTypeModule.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10 21:54:59 +00:00
Rafael Espindola
6253c7ca60 Produce a __debug_frame section on darwin ARM when appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131151 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10 21:04:45 +00:00
Rafael Espindola
dc52ecf6fd Rename DwarfRequiresRelocationForStmtList to
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10 20:35:05 +00:00
Rafael Espindola
e29887b4ee Use .cfi_sections to put the unwind info in .debug_frame when possible. With
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10 18:39:09 +00:00
Devang Patel
a3f486762f Do not ignore InlinedAt while walking up scope chain to find subprogram node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-09 22:14:49 +00:00
Devang Patel
31c5d05a26 Move CompileUnit::getOrCreateNameSpace() and CompileUnit::addPubType() from DwarfDebug.cpp to DwarfCompileUnit.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130991 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 16:57:54 +00:00
Rafael Espindola
af25768415 Nothing else uses this label.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 15:44:29 +00:00
Rafael Espindola
0125d50569 Yet more dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 15:31:55 +00:00
Rafael Espindola
ffa6408f9c Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130987 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 15:28:56 +00:00
Rafael Espindola
ba39f88d0e More dead code elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 15:22:26 +00:00
Rafael Espindola
f2b0423200 Dead code elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06 14:56:22 +00:00
Rafael Espindola
97a1216581 Remove DwarfTableException.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 23:19:54 +00:00
Rafael Espindola
254784f9e0 Remove the DwarfTable enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 22:14:31 +00:00
Devang Patel
51a04adc5e Remove little used statistical counter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130955 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 22:00:08 +00:00
Rafael Espindola
ecf58b9e3c Implement a really simple DwarfSjLjException.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130947 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 20:48:31 +00:00