124 Commits

Author SHA1 Message Date
Daniel Dunbar
b6adc43f6e Avoid generation of dead code in a few more situations.
- Emit variable declarations as "simple", we want to avoid forcing the creation
   of a dummy basic block, but still need to make the variable available for
   later use.

 - With that, we can now skip IRgen for other unreachable statements (which
   don't define a label).

 - Anders, I added two fixmes on calls to EmitVLASize, can you check them?

llvm-svn: 76361
2009-07-19 06:58:07 +00:00
Ted Kremenek
8a286fbdb9 Per offline discussion with Steve Naroff, add back Type::getAsXXXType() methods
until Doug Gregor's Type smart pointer code lands (or more discussion occurs).
These methods just call the new Type::getAs<XXX> methods, so we still have
reduced implementation redundancy. Having explicit getAsXXXType() methods makes
it easier to set breakpoints in the debugger.

llvm-svn: 76193
2009-07-17 17:50:17 +00:00
Ted Kremenek
b825c0ddc5 Replaced Type::getAsLValueReferenceType(), Type::getAsRValueReferenceType(), Type::getAsMemberPointerType(), Type::getAsTagType(), and Type::getAsRecordType() with their Type::getAs<XXX> equivalents.
llvm-svn: 76139
2009-07-17 01:20:38 +00:00
Ted Kremenek
e3fb4b6524 Add member template 'Type::getAs<T>', which converts a Type* to a respective T*.
This method is intended to eventually replace the individual
Type::getAsXXXType<> methods.

The motivation behind this change is twofold:

1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of
them are basically copy-and-paste.

2) By centralizing the implementation of the getAs<Type> logic we can more
smoothly move over to Doug Gregor's proposed canonical type smart pointer
scheme.

Along with this patch:

a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>.
b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>.

llvm-svn: 76098
2009-07-16 19:58:26 +00:00
Owen Anderson
170229f68d Update for LLVM API change, and contextify a bunch of related stuff.
llvm-svn: 75705
2009-07-14 23:10:40 +00:00
Owen Anderson
ae86c19e68 Update for LLVM API change.
llvm-svn: 75446
2009-07-13 04:10:07 +00:00
Owen Anderson
c9673d5bae Update for IRBuilder API change.
llvm-svn: 75041
2009-07-08 20:52:20 +00:00
Argyrios Kyrtzidis
ddcd132a5b Remove the ASTContext parameter from the getBody() methods of Decl and subclasses.
Timings showed no significant difference before and after the commit.

llvm-svn: 74504
2009-06-30 02:35:26 +00:00
Argyrios Kyrtzidis
b4b64ca752 Remove the ASTContext parameter from the attribute-related methods of Decl.
The implementations of these methods can Use Decl::getASTContext() to get the ASTContext.

This commit touches a lot of files since call sites for these methods are everywhere.
I used pre-tokenized "carbon.h" and "cocoa.h" headers to do some timings, and there was no real time difference between before the commit and after it.

llvm-svn: 74501
2009-06-30 02:34:44 +00:00
Douglas Gregor
78bd61f661 Move the static DeclAttrs map into ASTContext. Fixes <rdar://problem/6983177>.
llvm-svn: 73702
2009-06-18 16:11:24 +00:00
Anders Carlsson
f3f91cee43 When possible, don't emit the cleanup block. Instead, just move the instructions to the current block.
llvm-svn: 72654
2009-05-31 00:33:20 +00:00
Eli Friedman
9444638e4e Re-add a slightly more general version of the check from r72578; it is
actually necessary in some obscure cases.

llvm-svn: 72585
2009-05-29 19:23:46 +00:00
Mike Stump
a678874975 Oops, the testcase I was thinking of is supposed to error out. I
tried other things that might trip, but they all worked.

llvm-svn: 72584
2009-05-29 19:14:13 +00:00
Mike Stump
7f12d51a48 Fixup codegen for composition of vla types using a normal array type.
llvm-svn: 72578
2009-05-29 17:06:45 +00:00
Mike Stump
18bb9284ff Reflow some comments.
llvm-svn: 71937
2009-05-16 07:57:57 +00:00
Sebastian Redl
a7b98a772c Implement function-try-blocks. However, there's a very subtle bug that I can't track down.
llvm-svn: 70155
2009-04-26 20:35:05 +00:00
Chris Lattner
28ec0cf86c the logic for computing __func__ and friends is really broken:
the type assigned by sema (and is visible with sizeof(__func__) for
example) has nothing to do with what codegen ends up producing.
We should eventually add a method on PredefinedExpr to handle this.
In the meantime, just set up some framework and add some fixme's.

llvm-svn: 69872
2009-04-23 05:30:27 +00:00
Chris Lattner
b534f6a601 don't bother emitting a zero byte memset at all. We used to get them
in cases like this:

typedef struct {
  short instance;
  char name[0];
} ATTR_LIST_ENTRY2;

void test() {
  ATTR_LIST_ENTRY2 X = (ATTR_LIST_ENTRY2) { .instance = 7, };
}  

While it is safe to emit them, it is pretty silly.

llvm-svn: 69687
2009-04-21 17:59:23 +00:00
Douglas Gregor
e3dcb2ddd1 FunctionDecl::getBody() is getting an ASTContext argument for use in
lazy PCH deserialization. Propagate that argument wherever it needs to
be. No functionality change, except that I've tightened up a few PCH
tests in preparation.

llvm-svn: 69406
2009-04-18 00:02:19 +00:00
Anders Carlsson
c483bd0724 Simplify CodeGenFunction::GenerateCode.
llvm-svn: 69134
2009-04-15 04:10:19 +00:00
Daniel Dunbar
4184ac847f Update to use hasAttr() instead of getAttr().
- No functionality change.

llvm-svn: 68987
2009-04-13 21:08:27 +00:00
Chris Lattner
5286e774ee reject codegen of __thread variables as unimplemented, rdar://6775265
llvm-svn: 68755
2009-04-10 00:35:59 +00:00
Anders Carlsson
468fa6366b Add some basic support for generating C++ member functions.
llvm-svn: 68425
2009-04-04 20:47:02 +00:00
Chris Lattner
2739d2bbe6 remove some obsolete comments, use an AssertingVH.
llvm-svn: 68151
2009-03-31 22:17:44 +00:00
Eli Friedman
09a9b6e335 Move where block-related variables are initialized so that block
types don't get generated when blocks aren't used.

llvm-svn: 67898
2009-03-28 03:24:54 +00:00
Chris Lattner
47640221da fix CreateTempAlloca to not set a name on the alloca for temporaries
in release-assert builds.  For automatic variables, explicitly set
a name with setName that does not make a temporary std::string.

This speeds up -emit-llvm-only -disable-free on PR3810 by 4.6%

llvm-svn: 67459
2009-03-22 00:24:14 +00:00
Anders Carlsson
e73e3ecc04 Initialize the cleanup.dst variable if necessary. Fixes PR3789.
llvm-svn: 67075
2009-03-17 05:53:35 +00:00
Mike Stump
aeb0ffd56c Codegen support for copy helpers for block literals.
llvm-svn: 66319
2009-03-07 02:35:30 +00:00
Mike Stump
0c74327715 Framework for codegen for copy/dispose helpers.
llvm-svn: 66231
2009-03-06 01:33:24 +00:00
Mike Stump
626aecc4be Add codegen support for __block variables to call _Block_object_dispose as necessary.
llvm-svn: 66117
2009-03-05 01:23:13 +00:00
Mike Stump
06acea8a69 Move some of the CodeGenFunction blocks code up and out. No
functionality change.

llvm-svn: 66048
2009-03-04 18:57:26 +00:00
Douglas Gregor
deaad8cc34 Create a new TypeNodes.def file that enumerates all of the types,
giving them rough classifications (normal types, never-canonical
types, always-dependent types, abstract type representations) and
making it far easier to make sure that we've hit all of the cases when
decoding types. 

Switched some switch() statements on the type class over to using this
mechanism, and filtering out those things we don't care about. For
example, CodeGen should never see always-dependent or non-canonical
types, while debug info generation should never see always-dependent
types. More switch() statements on the type class need to be moved 
over to using this approach, so that we'll get warnings when we add a
new type then fail to account for it somewhere in the compiler.

As part of this, some types have been renamed:

  TypeOfExpr -> TypeOfExprType
  FunctionTypeProto -> FunctionProtoType
  FunctionTypeNoProto -> FunctionNoProtoType

There shouldn't be any functionality change...

llvm-svn: 65591
2009-02-26 23:50:07 +00:00
Daniel Dunbar
76ba41ce4f Add Type::hasPointerRepresentation predicate.
- For types whose native representation is a pointer.

 - Use to replace ExprConstant.cpp:HasPointerEvalType,
   CodeGenFunction::isObjCPointerType.

llvm-svn: 65569
2009-02-26 20:52:22 +00:00
Daniel Dunbar
e2617d97a5 Drop uses of isPointerLikeType.
- No functionality change.

llvm-svn: 65560
2009-02-26 19:03:24 +00:00
Mike Stump
b750d928ce CodeGen support for copied BlockDeclRefExprs.
llvm-svn: 65487
2009-02-25 23:33:13 +00:00
Daniel Dunbar
22a87f94a9 Pull COdeGenFunction::CreateStaticBlockVarDecl (just for creating the
global variable) out of GenerateStaticBlockVarDecl. 
 - No intended functionality change.
 - Prep for some mild cleanups and PR3662.

llvm-svn: 65466
2009-02-25 19:24:29 +00:00
Daniel Dunbar
1234749853 Add low level support for generating invoke instead of calls.
- No functionality change.

llvm-svn: 65325
2009-02-23 17:26:39 +00:00
Mike Stump
cb2fbcb0c9 Add CodeGen support for the helper for BlockDeclRefExprs. The easier
stuff is mostly done.  Move BlockHasCopyDispose up.

llvm-svn: 65242
2009-02-21 20:00:35 +00:00
Douglas Gregor
5f361c9f1e Address Chris's comments regarding C++ name mangling.
llvm-svn: 64984
2009-02-18 23:53:56 +00:00
Anders Carlsson
63784f4e5e Add CodeGen support for the nodebug attribute.
llvm-svn: 64445
2009-02-13 08:11:52 +00:00
Douglas Gregor
5fec5b0495 Add basic support for C++ name mangling according to the Itanium C++
ABI to the CodeGen library. Since C++ code-generation is so
incomplete, we can't exercise much of this mangling code. However, a
few smoke tests show that it's doing the same thing as GCC. When C++
codegen matures, we'll extend the ABI tester to verify name-mangling
as well, and complete the implementation here.

At this point, the major client of name mangling is in the uses of the
new "overloadable" attribute in C, which allows overloading. Any
"overloadable" function in C (or in an extern "C" block in C++) will
be mangled the same way that the corresponding C++ function would be
mangled.

llvm-svn: 64413
2009-02-13 00:10:09 +00:00
Daniel Dunbar
2d0746fb97 Pull CodeGenFunction::EmitVAArg into target specific ABIInfo classes.
llvm-svn: 64235
2009-02-10 20:44:09 +00:00
Anders Carlsson
33c1b6528f Remove the last remnants of the Obj-C EH stack code.
llvm-svn: 64205
2009-02-10 06:07:49 +00:00
Anders Carlsson
f4478e94b8 Add DidCallStackSave variable to CodeGenFunction.
llvm-svn: 64156
2009-02-09 20:20:56 +00:00
Anders Carlsson
9c964ac272 Reuse case destinations.
llvm-svn: 64100
2009-02-08 22:46:50 +00:00
Anders Carlsson
f57b9eef62 Always check if we can remove branch fixups, even if the cleanup stack is empty.
llvm-svn: 64099
2009-02-08 22:45:15 +00:00
Anders Carlsson
76180ea456 Misc fixes to the cleanup stack code.
llvm-svn: 64096
2009-02-08 22:13:37 +00:00
Anders Carlsson
66c384ac2e More cleanup stack work, PopCleanupBlock now returns a struct with the switch block and end block.
llvm-svn: 64072
2009-02-08 07:46:24 +00:00
Anders Carlsson
ae91d9b140 Split some functions up
llvm-svn: 64069
2009-02-08 03:55:35 +00:00
Anders Carlsson
a586ad7f85 CleanupScope needs to push the cleanup block in its destructor
llvm-svn: 64068
2009-02-08 03:22:36 +00:00