Commit Graph

106 Commits

Author SHA1 Message Date
Tilmann Scheller 454464b491 Add CC_Win64ThisCall and set it in the necessary places.
llvm-svn: 126863
2011-03-02 19:36:23 +00:00
Anders Carlsson 6dc07d4e56 Get rid of the areExceptionsEnabled() getter from LangOptions.
llvm-svn: 126598
2011-02-28 00:33:03 +00:00
Anders Carlsson 08ce5ed1b1 Add a LangOptions::areExceptionsEnabled and start using it.
llvm-svn: 126062
2011-02-20 00:20:27 +00:00
Fariborz Jahanian 09948f1af6 In -fapple-kext mode, global object construction code
ends up in the text segment. // rdar://8825235.

llvm-svn: 125585
2011-02-15 18:54:46 +00:00
John McCall ad7c5c1657 Reorganize CodeGen{Function,Module} to eliminate the unfortunate
Block{Function,Module} base class.  Minor other refactorings.

Fixed a few address-space bugs while I was there.

llvm-svn: 125085
2011-02-08 08:22:06 +00:00
Fariborz Jahanian f59e80e0ed Save getObjCGCAttrKind and use it in two places
for efficiancy (still part of //rdar://8761767).
Per John's comment.

llvm-svn: 123401
2011-01-13 21:35:27 +00:00
Fariborz Jahanian d133979628 Generate write-barriers for global objc
assigns. // rdar://8761767 

llvm-svn: 123391
2011-01-13 20:00:54 +00:00
John McCall cdf7ef5437 Simplify the logic for emitting guard variables for template static
data members by delaying the emission of the initializer until after
linkage and visibility have been set on the global.  Also, don't
emit a guard unless the variable actually ends up with vague linkage,
and don't use thread-safe statics in any case.

llvm-svn: 118336
2010-11-06 09:44:32 +00:00
Fariborz Jahanian 1518a5eca7 Do the guarding of instantiated static data members
on if its linkage is weak. Currently this is the
case but may change in the future. (part of radar 
8562966).

llvm-svn: 117452
2010-10-27 16:21:54 +00:00
Fariborz Jahanian 67ca8c4c7b Patch to provide guard when initializing instances
of static data member of a class template.
Fixes //rdar :// 8562966 and pr8409.

llvm-svn: 117410
2010-10-26 22:47:47 +00:00
John McCall 7a626f63f7 one piece of code is responsible for the lifetime of every aggregate
slot.  The easiest way to do that was to bundle up the information
we care about for aggregate slots into a new structure which demands
that its creators at least consider the question.

I could probably be convinced that the ObjC 'needs GC' bit should
be rolled into this structure.
Implement generalized copy elision.  The main obstacle here is that
IR-generation must be much more careful about making sure that exactly

llvm-svn: 113962
2010-09-15 10:14:12 +00:00
John McCall 68ff03728a Implement ARM static local initialization guards, which are more compact than
Itanium guards and use a slightly different compiled-in API.

llvm-svn: 113330
2010-09-08 01:44:27 +00:00
John McCall 5d865c3292 Teach IR generation to return 'this' from constructors and destructors
under the ARM ABI.

llvm-svn: 112588
2010-08-31 07:33:07 +00:00
Daniel Dunbar 0381634a61 IRgen: Change Emit{Load,Store}OfScalar to take a required Alignment argument and
update callers as best I can.
 - This is a work in progress, our alignment handling is very horrible / sketchy -- I am just aiming for monotonic improvement.
 - Serious review appreciated.

llvm-svn: 111707
2010-08-21 02:24:36 +00:00
John McCall 62eb9a8e84 When initializing a static local, pop the guard-abort EH cleanup after
the variable is fully initialized.

llvm-svn: 110704
2010-08-10 18:51:44 +00:00
John McCall 45d494785d Emit global destructors even if the destroyed object has no initializers or has
an initializer requiring temporary object disposal.

Fixes rdar:://problem/8246444.

llvm-svn: 109849
2010-07-30 04:56:58 +00:00
John McCall cda666ccd8 Rename LazyCleanup -> Cleanup. No functionality change for these last three
commits.

llvm-svn: 109000
2010-07-21 07:22:38 +00:00
John McCall da650e091f Switch the __cxa_guard_abort cleanup to being a lazy cleanup.
llvm-svn: 108993
2010-07-21 06:20:50 +00:00
John McCall 70013b640f When deferring the emission of declarations with initializers in C++, remember
the order they appeared in the translation unit.  If they get emitted, put them
in their proper order.  Fixes rdar://problem/7458115

llvm-svn: 108477
2010-07-15 23:40:35 +00:00
John McCall 466e221037 When creating functions to run global initializers and destructors, mark them
as nounwind in -fno-exceptions.  Fixes rdar://problem/8090834.

llvm-svn: 107639
2010-07-06 04:38:10 +00:00
John McCall bd30929e4d Validated by nightly-test runs on x86 and x86-64 darwin, including after
self-host.  Hopefully these results hold up on different platforms.  

I tried to keep the GNU ObjC runtime happy, but it's hard for me to test.
Reimplement how clang generates IR for exceptions.  Instead of creating new
invoke destinations which sequentially chain to the previous destination,
push a more semantic representation of *why* we need the cleanup/catch/filter
behavior, then collect that information into a single landing pad upon request.

Also reorganizes how normal cleanups (i.e. cleanups triggered by non-exceptional
control flow) are generated, since it's actually fairly closely tied in with
the former.  Remove the need to track which cleanup scope a block is associated
with.

Document a lot of previously poorly-understood (by me, at least) behavior.

The new framework implements the Horrible Hack (tm), which requires every
landing pad to have a catch-all so that inlining will work.  Clang no longer
requires the Horrible Hack just to make exceptions flow correctly within
a function, however.  The HH is an unfortunate requirement of LLVM's EH IR.

llvm-svn: 107631
2010-07-06 01:34:17 +00:00
Douglas Gregor bac7490ffc Remove unnecessary ASTContext parameter from
CXXRecordDecl::getDestructor(); no functionality change.

llvm-svn: 107394
2010-07-01 14:13:13 +00:00
Anders Carlsson 3f48c603fb Correctly destroy reference temporaries with global storage. Remove ErrorUnsupported call when binding a global reference to a non-lvalue. Fixes PR7326.
llvm-svn: 106983
2010-06-27 17:52:15 +00:00
Chris Lattner 5e016ae983 finally get around to doing a significant cleanup to irgen:
have CGF create and make accessible standard int32,int64 and 
intptr types.  This fixes a ton of 80 column violations 
introduced by LLVMContextification and cleans up stuff a lot.

llvm-svn: 106977
2010-06-27 07:15:29 +00:00
Chris Lattner e000907e13 tidy up OrderGlobalInits
llvm-svn: 106976
2010-06-27 06:32:58 +00:00
Anders Carlsson 04775f8413 Change EmitReferenceBindingToExpr to take a decl instead of a boolean.
llvm-svn: 106949
2010-06-26 16:35:32 +00:00
Fariborz Jahanian 469b200321 Per Chris's comment, remove another static (this one
is a static comparator operator).

llvm-svn: 106511
2010-06-22 00:23:08 +00:00
Fariborz Jahanian c9fec975e6 Avoid using a local static for providing lexical
order of priorotized global object initializations.

llvm-svn: 106503
2010-06-21 23:31:29 +00:00
Fariborz Jahanian 89bdd14f2f In supporting init-priority, globals with the same init_priority must be
emitted in the order in which they are seen (still radar 8076356).

llvm-svn: 106485
2010-06-21 21:27:42 +00:00
Fariborz Jahanian 090e4e5773 Use more efficient API of SmallVector/array_pod_sort
for sorting (radar 8076356).

llvm-svn: 106453
2010-06-21 19:49:38 +00:00
Fariborz Jahanian 9f2a4eed0d IRGen for implementation of init-priority attribute.
Test case will be checked in llvm test suite.
(finishes off radar 8076356).

llvm-svn: 106441
2010-06-21 18:45:05 +00:00
Chris Lattner 87233f785b Fix PR7097, a bad interaction between -fno-use-cxa-atexit and
-mconstructor-aliases by using a WeakVH instead of a raw pointer.

llvm-svn: 106384
2010-06-19 05:52:45 +00:00
Chandler Carruth 8509824cdb Move CodeGenOptions.h *back* into Frontend. This should have been done when the
dependency edge was reversed such that CodeGen depends on Frontend.

llvm-svn: 106065
2010-06-15 23:19:56 +00:00
Anders Carlsson 851318a93a On Darwin, initialization and destruction functions should go into the __StaticInit section.
llvm-svn: 105650
2010-06-08 22:47:50 +00:00
Anders Carlsson b2839e4aa1 Add a global CreateGlobalInitOrDestructFunction and use it for creating global init or destruction functions.
llvm-svn: 105649
2010-06-08 22:40:05 +00:00
Anders Carlsson 9eb101c5d3 Rename __tcf_ to __cxx_global_array_dtor. Remove the UniqueAggreDestructorCount from CodeGenFunction and let LLVM handle uniquing the internal functions instead.
llvm-svn: 105648
2010-06-08 22:30:17 +00:00
Anders Carlsson 282bc10eaa Move GenerateCXXAggrDestructorHelper to CGDeclCXX.cpp where it belongs.
llvm-svn: 105647
2010-06-08 22:17:27 +00:00
Anders Carlsson 165ec0a04f Simplify GenerateCXXAggrDestructorHelper.
llvm-svn: 105646
2010-06-08 22:14:59 +00:00
Douglas Gregor 51150ab1f1 When initializing thread-safe statics, put the call to
__cxa_guard_abort along the exceptional edge into (in effect) a nested
"try" that rethrows after aborting. Fixes PR7144 and the remaining
Boost.ProgramOptions failures, along with the regressions that r103880
caused.

The crucial difference between this and r103880 is that we now follow
LLVM's little dance with the llvm.eh.exception and llvm.eh.selector
calls, then use _Unwind_Resume_or_Rethrow to rethrow.

llvm-svn: 103892
2010-05-16 01:24:12 +00:00
Douglas Gregor c278d1b3b9 Revert r103880 (thread-safe static initialization w/ exceptions),
because it's causing strange linker errors. Unfixes PR7144.

llvm-svn: 103890
2010-05-16 00:44:00 +00:00
Douglas Gregor 58142dd8a1 When initializing thread-safe statics, put the call to
__cxa_guard_abort along the exceptional edge into (in effect) a nested
"try" that rethrows after aborting. Fixes PR7144 and the remaining
Boost.ProgramOptions failures.

llvm-svn: 103880
2010-05-15 17:55:51 +00:00
Douglas Gregor 370eadf38d For thread-safe static initialization of local statics with
destructors, place the __cxa_atexit call after the __cxa_guard_release
call, mimicking GCC/LLVM-GCC behavior. Noticed while debugging
something related.

llvm-svn: 103088
2010-05-05 15:38:32 +00:00
John McCall 4a39ab8078 Emit the globals, metadata, etc. associated with static variables even when
they're unreachable.  This matters because (if they're POD, or if this is C)
the scope containing the variable might be reachable even if the variable
isn't.  Fixes PR7044.

llvm-svn: 103052
2010-05-04 20:45:42 +00:00
Chris Lattner 5e8416a77f emit dtors with the right calling convention in -fno-use-cxa-atexit
mode.

llvm-svn: 102377
2010-04-26 20:35:54 +00:00
Daniel Dunbar fe06df4bf3 C++: Add support for -fno-use-cxa-atexit.
- So much typing, so little gain...

Also, rename the __cxx_global_initialization function just to match llvm-gcc.

llvm-svn: 99039
2010-03-20 04:15:41 +00:00
Daniel Dunbar 7572284f4f IRgen: Inline GenerateCXXGlobal[VarDecl]InitFunc into sole caller.
llvm-svn: 99038
2010-03-20 04:15:29 +00:00
Anders Carlsson fcd764a168 Add support for threadsafe statics, and make them the default (matching gcc).
Daniel, I'd appreciate a review of the driver/cc1 parts.

llvm-svn: 95508
2010-02-06 23:23:06 +00:00
Anders Carlsson 3b227bd629 Revert the new reference binding code; I came up with a way simpler solution for the reference binding bug that is preventing self-hosting.
llvm-svn: 95223
2010-02-03 16:38:03 +00:00
Fariborz Jahanian 5cda92820f global variable that binds reference to a non-lvalue reproted
as NYI now.

llvm-svn: 94453
2010-01-25 21:40:39 +00:00
Fariborz Jahanian 210031b79c Fix a code gen. bug involving compiling global references.
(fixes radar 7574896).

llvm-svn: 94434
2010-01-25 18:30:26 +00:00
Eli Friedman 5866fe306d Fix for PR5967: Make const-marking for LLVM globals correct for cases requiring
run-time initialization, and emit run-time initializers aggresively to avoid
ordering issues with deferred globals.

llvm-svn: 92976
2010-01-08 00:50:11 +00:00
Anders Carlsson fefc7b8e7b Actually store the pointer into the global variable, spotted by Eli.
llvm-svn: 91036
2009-12-10 01:58:33 +00:00
Anders Carlsson a72ddd4609 Handle emitting static variables that have reference type.
llvm-svn: 91027
2009-12-10 01:05:11 +00:00
Anders Carlsson 364051c6a6 Separate generating code for static variables and global variables.
llvm-svn: 91026
2009-12-10 00:57:45 +00:00
Anders Carlsson 633c6f6f36 Move more decl related functions to CGDeclCXX.cpp
llvm-svn: 91012
2009-12-10 00:30:05 +00:00
Anders Carlsson bc49cfed84 Add CGDeclCXX.cpp and move EmitCXXGlobalVarDeclInit there.
llvm-svn: 91006
2009-12-10 00:16:00 +00:00