Commit Graph

292 Commits

Author SHA1 Message Date
Douglas Gregor 79a91418bd Switch LangOptions over to a .def file that describes header of the
language options. Use that .def file to declare the LangOptions class
and initialize all of its members, eliminating a source of annoying
initialization bugs.

AST serialization changes are next up.

llvm-svn: 139605
2011-09-13 17:21:33 +00:00
Julien Lerouge 5a6b6987dc Bring llvm.annotation* intrinsics support back to where it was in llvm-gcc: can
annotate global, local variables, struct fields, or arbitrary statements (using
the __builtin_annotation), rdar://8037476.

llvm-svn: 139423
2011-09-09 22:41:49 +00:00
John McCall a5efa7386a Track whether an AggValueSlot is potentially aliased, and do not
emit call results into potentially aliased slots.  This allows us
to properly mark indirect return slots as noalias, at the cost
of requiring an extra memcpy when assigning an aggregate call
result into a l-value.  It also brings us into compliance with
the x86-64 ABI.

llvm-svn: 138599
2011-08-25 23:04:34 +00:00
John McCall 8d6fc9583d Use stronger typing for the flags on AggValueSlot and require
creators to tell us whether something needs GC barriers.
No functionality change.

llvm-svn: 138581
2011-08-25 20:40:09 +00:00
Fariborz Jahanian 5c4b2ca699 blocks - capturing logic of byref block variable's expression
statement initializer makes safe assumption when a substatement 
is encounterred (with a fix me).

llvm-svn: 138528
2011-08-25 00:06:26 +00:00
Eric Christopher b58b3e879d Make constant aggregate constant initializers private linkage.
After talking with John making this the case for all of these is
the right way to go.

Fixes rdar://9804564 and PR10414

llvm-svn: 138418
2011-08-24 00:33:55 +00:00
Eric Christopher d28d107099 Whitespace and 80-col cleanup.
llvm-svn: 138413
2011-08-23 23:44:09 +00:00
Eric Christopher 31ab13047d Whitespace.
llvm-svn: 138404
2011-08-23 22:38:00 +00:00
Fariborz Jahanian 797f1e23f6 checking for __block variable captured by given
stmt expression, recursively walk down all substatements 
of the stmt expression. // rdar://10001085

llvm-svn: 138334
2011-08-23 16:47:15 +00:00
Fariborz Jahanian b50801f049 block IRgen - Fixes a crash when determining if given block variable
is captured by a given statement expression. // rdar://10001085

llvm-svn: 138314
2011-08-23 00:27:49 +00:00
Francois Pichet 00c7e6ceb1 Implement function template specialization at class scope extension in Microsoft mode. A new AST node is introduced: ClassScopeFunctionSpecialization. This node holds a FunctionDecl that is not yet specialized; then during the class template instantiation the ClassScopeFunctionSpecialization will spawn the actual function specialization.
Example:
template <class T>
class A {
public:
  template <class U> void f(U p) {  }
  template <> void f(int p) {  } // <== class scope specialization
};

This extension is necessary to parse MSVC standard C++ headers, MFC and ATL code.
BTW, with this feature in, clang can parse (-fsyntax-only) all the MSVC 2010 standard header files without any error.

llvm-svn: 137573
2011-08-14 03:52:19 +00:00
John McCall b726a55729 Fix a couple of problems with initialization and assignment to
__block variables where the act of initialization/assignment
itself causes the __block variable to be copied to the heap
because the variable is of block type and is being assigned
a block literal which captures the variable.

rdar://problem/9814099

llvm-svn: 136337
2011-07-28 07:23:35 +00:00
Chandler Carruth d48db2115a Rename getInstantiationLineNumber to getExpansionLineNumber in both
SourceManager and FullSourceLoc.

llvm-svn: 135969
2011-07-25 21:09:52 +00:00
Chris Lattner 0e62c1cc0b remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.

llvm-svn: 135852
2011-07-23 10:55:15 +00:00
Jay Foad 040dd82f44 Convert IRBuilder::CreateGEP and IRBuilder::CreateInBoundsGEP to use
ArrayRef.

llvm-svn: 135761
2011-07-22 08:16:57 +00:00
Chris Lattner 2192fe50da de-constify llvm::Type, patch by David Blaikie!
llvm-svn: 135370
2011-07-18 04:24:23 +00:00
John McCall 97eab0a271 Okay, that rule about zero-length arrays applies to destroying
them, too.

llvm-svn: 135038
2011-07-13 08:09:46 +00:00
John McCall 30317fda63 Generalize Cleanup::Emit's "isForEH" parameter into a set
of flags.  No functionality change.

llvm-svn: 134997
2011-07-12 20:27:29 +00:00
John McCall 4bd0fb1f09 Switch field destruction over to use the new destroyer-based API
and kill a lot of redundant code.

llvm-svn: 134988
2011-07-12 16:41:08 +00:00
John McCall 178360e1cd Fix a lot of problems with the partial destruction of arrays:
- an off-by-one error in emission of irregular array limits for
   InitListExprs
 - use an EH partial-destruction cleanup within the normal
   array-destruction cleanup
 - get the branch destinations right for the empty check
Also some refactoring which unfortunately obscures these changes.

llvm-svn: 134890
2011-07-11 08:38:19 +00:00
John McCall c2f0001c80 More compiler workarounds. I have to admit that I was not
expecting so much concentrated oddity on what seemed like a
trivial feature.  Thanks to François Pichet for doing the
MSVC legwork here.

llvm-svn: 134813
2011-07-09 09:09:00 +00:00
John McCall 7c4df104ce GCC 4.2 compatibility hack.
llvm-svn: 134785
2011-07-09 02:30:03 +00:00
John McCall 82fe67bb82 A number of array-related IR-gen cleanups.
- Emit default-initialization of arrays that were partially initialized
    with initializer lists with a loop, rather than emitting the default
    initializer N times;
  - support destroying VLAs of non-trivial type, although this is not
    yet exposed to users; and
  - support the partial destruction of arrays initialized with
    initializer lists when an initializer throws an exception.

llvm-svn: 134784
2011-07-09 01:37:26 +00:00
Douglas Gregor 82e1af20cb Don't zero-initialize default-initialized local variables that have
trivial default constructors. This generated-code regression was
caused by r131796, which had simplified the handling of default
initialization in Sema. Fixes <rdar://problem/9694300>.

llvm-svn: 134260
2011-07-01 21:08:19 +00:00
Fariborz Jahanian 326701e2c7 objc-arc: fix a IRGen crash when checking for
accessibility of an initializer which is a compound 
statement. // rdar://9694706

llvm-svn: 134091
2011-06-29 20:00:16 +00:00
John McCall 55e1fbc848 LValue carries a type now, so simplify the main EmitLoad/Store APIs
by removing the redundant type parameter.

llvm-svn: 133860
2011-06-25 02:11:03 +00:00
John McCall 1bd2556ccc Honor objc_precise_lifetime in GC mode by feeding the value
in the variable to an inline asm which gets run when the variable
goes out of scope.

llvm-svn: 133840
2011-06-24 23:21:27 +00:00
John McCall 23c29fea92 Change the IR-generation of VLAs so that we capture bounds,
not sizes;  so that we use well-typed allocas;  and so that we
properly recurse through the full set of variably-modified types.

llvm-svn: 133827
2011-06-24 21:55:10 +00:00
Benjamin Kramer 8a9cc4fe28 Remove dead variables.
llvm-svn: 133346
2011-06-18 10:34:07 +00:00
John McCall d463132f27 Objective-C fast enumeration loop variables are not retained in ARC, but
they should still be officially __strong for the purposes of errors, 
block capture, etc.  Make a new bit on variables, isARCPseudoStrong(),
and set this for 'self' and these enumeration-loop variables.  Change
the code that was looking for the old patterns to look for this bit,
and change IR generation to find this bit and treat the resulting         
variable as __unsafe_unretained for the purposes of init/destroy in
the two places it can come up.

llvm-svn: 133243
2011-06-17 06:42:21 +00:00
John McCall 1553b19067 Restore correct use of GC barriers.
llvm-svn: 133144
2011-06-16 04:16:24 +00:00
John McCall 101236969f Suppress a warning in -Asserts builds.
llvm-svn: 133110
2011-06-15 23:40:09 +00:00
John McCall 31168b077c Automatic Reference Counting.
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
2011-06-15 23:02:42 +00:00
Devang Patel 7bf741ac36 Do not emit stoppoint before emitting debug info for parameters.
- llvm.dbg.declare already receives line number information from ParmDecl
- Additional extra stoppoint messes up gdb's understanding of where function body starts.

llvm-svn: 133065
2011-06-15 17:57:08 +00:00
Devang Patel 1b291b22d0 Rework r132576.
Emit debug info only if there is an insertion point. The debug info should not force an insertion point. Codegen may later on decide to not emit code for some reason, see extensive comment in CodeGenFunction::EmitStmt(), and debug info should not get in the way.

llvm-svn: 132610
2011-06-04 00:38:02 +00:00
Devang Patel 887e215e64 Emit debug info only if there is an insertion point. The debug info should not force an insertion point. Codegen may later on decide to not emit code for some reason, see extensive comment in CodeGenFunction::EmitStmt(), and debug info should not get in the way.
llvm-svn: 132576
2011-06-03 19:21:47 +00:00
Eli Friedman b857842c48 Add unnamed_addr to internal globals which are only used as an operand to memcpy. (Spotted by looking at IR.)
llvm-svn: 132226
2011-05-27 22:32:55 +00:00
Richard Smith 3f1b5d077b Implement support for C++0x alias templates.
llvm-svn: 130953
2011-05-05 21:57:07 +00:00
Eli Friedman 43dca6a8d2 Simplify code a bit by using CallArgList::add. No intended functionality change.
llvm-svn: 130699
2011-05-02 17:57:46 +00:00
Richard Smith dda56e4b4a Support for C++11 (non-template) alias declarations.
llvm-svn: 129567
2011-04-15 14:24:37 +00:00
Devang Patel 095421b4a8 Fix typo.
llvm-svn: 128921
2011-04-05 20:28:21 +00:00
John McCall 7306487077 Move all the significant __block code into CGBlocks.cpp. No functionality
change.

llvm-svn: 128608
2011-03-31 01:59:53 +00:00
Peter Collingbourne 599cb8e430 Add support for language-specific address spaces. On top of that,
add support for the OpenCL __private, __local, __constant and
__global address spaces, as well as the __read_only, _read_write and
__write_only image access specifiers.  Patch originally by ARM;
language-specific address space support by myself.

llvm-svn: 127915
2011-03-18 22:38:29 +00:00
John McCall 91ca10fe64 Extract a function to emit an arbitrary expression as if it were the initializer
for a local variable.

llvm-svn: 127227
2011-03-08 09:11:50 +00:00
Douglas Gregor 19da4e4397 Revert r126422 "Use private linkage to avoid symbol conflicts in
corner cases like the one in PR9301." which caused PR9416. 

llvm-svn: 127136
2011-03-06 23:28:21 +00:00
Devang Patel 68a1525290 Encode argument numbering in debug info so that code generator can emit them in order.
This fixes few blocks.exp regressions.

llvm-svn: 126960
2011-03-03 20:13:15 +00:00
Devang Patel bd6f7f9770 revert r126858.
llvm-svn: 126874
2011-03-02 20:31:22 +00:00
Devang Patel 31e5fb52d1 Encode argument numbering in debug info so that code generator can emit them in order.
This fixes few blocks.exp regressions.

Reapply r126795 with a fix (one character change) for gdb testsuite regressions.

llvm-svn: 126858
2011-03-02 19:11:22 +00:00
Devang Patel a54696de8a Revert r126794.
llvm-svn: 126848
2011-03-02 17:54:58 +00:00
Devang Patel 3bc2dedb40 Encode argument numbering in debug info so that code generator can emit them in order.
This fixes few blocks.exp regressions.

llvm-svn: 126795
2011-03-01 22:59:40 +00:00