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130 Commits

Author SHA1 Message Date
Chris Lattner
802ebf9561 Fix the case when a reference to an address taken BB is emitted in one 
function, then the BB is RAUW'd before the definition is emitted.  There
are still two cases not being handled, but this should improve us back to
the situation before I touched anything.

llvm-svn: 98566
 2010-03-15 19:09:43 +00:00
Chris Lattner
2bdb0765f8 fix AsmPrinter::GetBlockAddressSymbol to always return a unique 
label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608

llvm-svn: 98495
 2010-03-14 17:53:23 +00:00
Chris Lattner
9331acc6d7 get MMI out of the label uniquing business, just go to MCContext 
to get unique assembler temporary labels.

llvm-svn: 98489
 2010-03-14 08:36:50 +00:00
Chris Lattner
5fef80c5aa change the LabelSDNode to be EHLabelSDNode and make it hold 
an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".

llvm-svn: 98463
 2010-03-14 02:33:54 +00:00
Chris Lattner
de49dbc188 eliminate InvalidateLabel and LabelIDList from MMI and replace 
them with a counter.

llvm-svn: 98462
 2010-03-14 02:24:55 +00:00
Chris Lattner
f856c407af use Label->isDefined() instead of isLabelDeleted() now that we 
consistently use MCSymbol and only call this predicate after
they should have been emitted.

llvm-svn: 98461
 2010-03-14 02:20:58 +00:00
Chris Lattner
149cf816bb change EH related stuff (other than EH_LABEL) to use MCSymbol 
instead of label ID's.  This cleans up and regularizes a bunch 
of code and makes way for future progress.

Unfortunately, this pointed out to me that JITDwarfEmitter.cpp
is largely copy and paste from DwarfException/MachineModuleInfo
and other places.  This is very sad and disturbing. :(

One major change here is that TidyLandingPads moved from being
called in DwarfException::BeginFunction to being called in
DwarfException::EndFunction.  There should not be any 
functionality change from doing this, but I'm not an EH expert.

llvm-svn: 98459
 2010-03-14 01:41:15 +00:00
Chris Lattner
e7538fa303 rearrange MCContext ownership. Before LLVMTargetMachine created it 
and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.

llvm-svn: 98450
 2010-03-13 20:55:24 +00:00
Bill Wendling
df325dee9d Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that 
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.

llvm-svn: 98199
 2010-03-10 22:34:10 +00:00
Chris Lattner
d4ce7a73e8 strength reduce MMI::MappedLabel to MMI::isLabelDeleted, 
and add a FIXME about how we are eventually going to zap this
lookup table once mc world domination is complete.

llvm-svn: 98031
 2010-03-09 01:51:43 +00:00
Chris Lattner
73de790f59 inline RemapLabel into its only caller and simplify. 
llvm-svn: 98029
 2010-03-09 01:29:59 +00:00
Anton Korobeynikov
dccd240998 Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there 
llvm-svn: 96285
 2010-02-15 22:35:59 +00:00
Jim Grosbach
7474937004 Update of 94055 to track the IR level call site information via an intrinsic. 
This allows code gen and the exception table writer to cooperate to make sure
landing pads are associated with the correct invoke locations.

llvm-svn: 94726
 2010-01-28 01:45:32 +00:00
Chris Lattner
8fe5535cec remove a noop function. 
llvm-svn: 94616
 2010-01-26 23:26:29 +00:00
Jim Grosbach
57ca094a52 back this out for now. Growing Function is not good. 
llvm-svn: 94097
 2010-01-21 20:10:22 +00:00
Chris Lattner
0ce1aa4aa6 remove a couple of asserts that use RTTI. 
llvm-svn: 94068
 2010-01-21 06:11:03 +00:00
Jim Grosbach
cf6e6e1c79 Make sure that landing pad entries in the EH call site table are in the proper 
order for SjLj style exception handling.

llvm-svn: 94055
 2010-01-21 00:43:30 +00:00
Chris Lattner
6dd4686b48 Metadata.h doesn't need to include ValueHandle.h anymore. 
llvm-svn: 92211
 2009-12-28 08:20:46 +00:00
Devang Patel
9cd7c1ab8e Remove DebugLabelFolder pass. It is not used by dwarf writer anymore. 
llvm-svn: 89790
 2009-11-24 19:37:07 +00:00
Devang Patel
c024e96ca3 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes. 
llvm-svn: 87014
 2009-11-12 19:02:56 +00:00
Devang Patel
5c983cb2ab Implement support to debug inlined functions. 
llvm-svn: 86748
 2009-11-10 23:06:00 +00:00
Chandler Carruth
766362c707 Move DataTypes.h to include/llvm/System, update all users. This breaks the last 
direct inclusion edge from System to Support.

llvm-svn: 85086
 2009-10-26 01:35:46 +00:00
Devang Patel
1fa3e26912 Using TrackingVH instead of WeakVH or WeakMetadataVH. 
llvm-svn: 84884
 2009-10-22 18:25:28 +00:00
Devang Patel
21a7babc56 Enable "debug info attached to an instruction" mode. 
llvm-svn: 83925
 2009-10-12 23:22:09 +00:00
Devang Patel
c97c44b584 Extract scope information from the variable itself, instead of relying on alloca or llvm.dbg.declare location. 
While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself.

llvm-svn: 83684
 2009-10-09 22:42:28 +00:00
Devang Patel
d24ba7a101 If location info is attached with an instruction then keep track of alloca slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables. 
llvm-svn: 83189
 2009-10-01 01:03:26 +00:00
Devang Patel
5d5d1f31b7 Silence unused variable warning. 
llvm-svn: 83151
 2009-09-30 17:13:41 +00:00
Devang Patel
0136a7ebec Simplify. 
llvm-svn: 83123
 2009-09-30 00:14:40 +00:00
Chris Lattner
f91260f6cf move FnStubs/GVSTubs/HiddenGVStub handling out of the X86 asmprinter 
and use MachineModuleInfoMachO instead.

llvm-svn: 82022
 2009-09-16 06:25:03 +00:00
Chris Lattner
4452afa6d8 add a new MachineModuleInfoMachO class, which is the per-module 
stuff common across all macho targets.

llvm-svn: 82018
 2009-09-16 06:03:48 +00:00
Chris Lattner
d6143d7aff the pointer MMI keeps will start out with object-file format specific stuff 
llvm-svn: 82012
 2009-09-16 05:26:00 +00:00
Chris Lattner
8457d8c557 add hooks to hang target-specific goop off MachineModuleInfo, 
move MachineFunctionInfo virtual method out of line to give it
a home.

llvm-svn: 81940
 2009-09-15 22:44:26 +00:00
Chris Lattner
eac40b1473 implement a new magic global "llvm.compiler.used" which is like llvm.used, but 
doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399
 2009-07-20 06:14:25 +00:00
Argyrios Kyrtzidis
9e888740d2 Remove an, apparently, leftover MachineModuleInfo::RecordSourceLine declaration. 
llvm-svn: 70804
 2009-05-03 22:11:08 +00:00
Devang Patel
92ff43635b DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used. 
llvm-svn: 68813
 2009-04-10 18:58:59 +00:00
Devang Patel
8c076d8328 Remove dead code. 
llvm-svn: 63653
 2009-02-03 19:46:28 +00:00
Devang Patel
ccc3162f69 Need only one set of debug info versions enum. 
llvm-svn: 62602
 2009-01-20 19:22:03 +00:00
Devang Patel
1da8253b35 Removoe MachineModuleInfo methods (and related DebugInfoDesc class hierarchy) that were used to handle debug info. 
llvm-svn: 62199
 2009-01-13 23:54:55 +00:00
Devang Patel
ba388f3905 Keep "has debug info" big in MachineModuleInfo to avoid circular dependency between AsmPrinter and CodeGen. 
llvm-svn: 62191
 2009-01-13 23:02:17 +00:00
Devang Patel
ceeecba890 Today the front-ends (llvm-gcc and clang) generate multiple llvm.dbg.compile_units to identify source file for various debug entities. Each llvm.dbg.compile_unit matches one file on the disk. However, the backend only supports one DW_TAG_compile_unit per .o file. The backend selects first compile_unit from the vector to construct DW_TAG_compile_unit entry, which is not correct in all cases. 
First step to resolve this is, record file name and directory directly in debug info for various debug entities. 

llvm-svn: 61164
 2008-12-17 22:39:29 +00:00
Evan Cheng
9419dfe08a Fix a couple of Dwarf bugs. 
- Emit DW_AT_byte_size for struct and union of size zero.
- Emit DW_AT_declaration for forward type declaration.

llvm-svn: 60812
 2008-12-10 00:15:44 +00:00
Dan Gohman
46dafc2fb9 Move the include of MachineLocation.h into MachineModuleInfo.h 
because it declares a std::vector<MachineMove>, and strict
concept checking requires the definition of MachineMove to be
available.

llvm-svn: 57617
 2008-10-16 00:20:14 +00:00
Bill Wendling
d7da49634d Use StringMap for greater justice! 
llvm-svn: 53202
 2008-07-07 20:59:31 +00:00
Bill Wendling
e3ad6f2249 Don't return std::vector by value, but pass it in by reference to be filled. 
llvm-svn: 53123
 2008-07-03 23:13:02 +00:00
Bill Wendling
2c9a84d788 Revert my previous check-in that split up MachineModuleInfo. It turns out to 
slow the compiler down at -O0 some 30% or more. Ooops.

llvm-svn: 53120
 2008-07-03 22:53:42 +00:00
Bill Wendling
d19faaca94 More cruft from revert... 
llvm-svn: 52809
 2008-06-27 01:37:37 +00:00
Bill Wendling
e9909a1c2a Reverting broken patch r52803. 
llvm-svn: 52806
 2008-06-27 01:27:56 +00:00
Bill Wendling
d0c2026584 - Remove a use of std::vector. 
- Make sure that we're not recalculating the size of a vector
  that never changes.

llvm-svn: 52803
 2008-06-27 00:56:36 +00:00
Bill Wendling
2ab62b9a92 Refactor the DebugInfoDesc stuff out of the MachineModuleInfo file. Clean up 
some uses of std::vector, where it's return std::vector by value. Yuck!

llvm-svn: 52800
 2008-06-27 00:09:40 +00:00
Evan Cheng
d9353009b7 Fix more -Wshorten-64-to-32 warnings. 
llvm-svn: 50659
 2008-05-05 18:30:58 +00:00