Commit Graph

72 Commits

Author SHA1 Message Date
Steve Naroff 4750051ebb Bug #:
Submitted by:
Reviewed by:
Continue working on type checking for unary operators. Added:

- Two 3 private functions to Sema: CheckAddressOfOperand(), CheckIndirectionOperand(),
and getDecl().
- Added Expr::isLvalue() - it was needed for CheckAddressOfOperand(). It will
also be needed for ++/-- and the assignment operators.
- Added a couple diagnostics for invalid lvalues (for & of).

llvm-svn: 39408
2007-04-19 23:00:49 +00:00
Chris Lattner 86054a9634 Diagnostics relating to computation of values should only be produced if an
expression is live.  For example:
#if 0 ? 124/0 : 42

should cause no error.

This implements test/Preprocessor/expr_liveness.c

llvm-svn: 39397
2007-04-10 05:26:38 +00:00
Steve Naroff d50c88e489 Bug #:
Submitted by:
Reviewed by:
Fix "FIXME: does this lose qualifiers from the typedef??" in ASTContext::getTypedefType().

This change was fairly pervasive...nevertheless, here are the highlights:
- Change the type of Type::CanonicalType to TypeRef (was "Type *").
- Change the implementation of TypeRef::getCanonicalType() to work for typedefs.
- Make the implementation of Type::getCanonicalType private (only TypeRef should access). This
will force clients to use TypeRef::getCanonicalType (the correct version of the function). Since
TypeRef overloads "->", it was very easy to fall into this bug...
- Changed many references of "Type *" to "TypeRef"...when the raw type pointer is required, use t.getTypePtr().
- Changed all the *Type classes to take a TypeRef.
- Made the Type constructor protected (cleanup).
- Removed function Expr::getType().
- Convert functions in SemaExpr to use the above support. This fixed the "const" bug I was originally investigating.

I will follow this check-in up with a rename of TypeRef->QualType. I will also make sure the constructor does not default to 0 (which can lead to broken code...).

llvm-svn: 39394
2007-04-05 21:15:20 +00:00
Chris Lattner ef8743b4f6 Move LiteralSupport files to their alphabetic position.
llvm-svn: 39384
2007-04-04 06:45:50 +00:00
Steve Naroff ef2ab6a572 Bug #:
Submitted by:
Reviewed by:
Add three new classes to Decl.h: BlockVarDecl, FileVarDecl, and ParmVarDecl.

Made the constructor to VarDecl protected, to indicate it is "abstract".

Reorganized the Decl::Kind enum to allow us to add ObjectDecls/TypeDecls with
minimal breakage.  In the process, realized the isa support for ObjectDecl was already broken (so
the reorg paid for itself already:-) The range check should also be more efficient...

llvm-svn: 39373
2007-04-02 20:50:54 +00:00
Steve Naroff fc49d67add Bug #:
Submitted by:
Reviewed by:
- Finished up incomplete type analysis for varibles (in Sema::ParseDeclarator()).
- Added many spec refs, since this area is confusing (for top level decls
in particular).
- Added a FIXME to MergeVarDecl()...it needs to be taught about tentative
definitions. As a result, we currently issue some bogus diagnostics.

llvm-svn: 39372
2007-04-01 21:27:45 +00:00
Steve Naroff 09ef474197 Bug #:
Submitted by:
Reviewed by:
Moved numeric literal support from SemaExpr.cpp to LiteralSupport.[h,cpp]
in Lex. This will allow it to be used by both Sema and Preprocessor (and
should be the last major refactoring of this sub-system).. Over
time, it will be reused by anyone implementing an actions module (i.e.
any subclass of llvm::clang::Action. Minor changes to IntegerLiteral in Expr.h.
More to come...

llvm-svn: 39351
2007-03-09 23:16:33 +00:00
Steve Naroff 8160ea2072 Bug #:
Submitted by:
Reviewed by:
More code to parse numeric constants. This checkin includes:
- Feedback from Chris.
- Support for parsing floating point constants.
- Moved the code to "Sema". Changed API in Action.
- More/better error diagnostics.

At this point, the parsing support should be largely complete. Next step
is to work on filling in sensible values (in IntegerLiteral/FloatLiteral).

llvm-svn: 39349
2007-03-06 01:09:46 +00:00
Steve Naroff 1fb30c5e99 Bug #:
Submitted by:
Reviewed by:
First phase of parsing IntegerConstants. At the moment, all processing
is done in the Parser, not Sema. If necessary, this is easy to move.
Next steps:
- Convert well for strings to actual values (need to look @ APInt.h)
- Design the API between the Parser and Sema. Sema shouldn't have to be
concerned with any parsing issues...

llvm-svn: 39348
2007-03-03 00:02:57 +00:00
Steve Naroff 7f890eb790 More changes to complete the dynamic type support for Stmt/Expr.
This set of changes includes:
- convert ExprCXX.h and add to the Xcode project file.
-- required adding CXXBoolLiteralExpr to StmtNodes.def.
-- required adding visitor support (decl/defn).
- make the class codes in StmtNodes.def explicit (to enable range checking).
-- this required changing all clients of the STMT macro.
- declare the instance data const.

llvm-svn: 39344
2007-02-27 02:53:10 +00:00
Steve Naroff ab62488ae3 rename IntegerConstant->IntegerLiteral
rename FloatingConstant->FloatingLiteral
rename StringExpr->StringLiteral

llvm-svn: 39341
2007-02-21 22:05:47 +00:00
Chris Lattner 10a5b387cc Add support for target-specific builtins, including detecting nonportability
of source code.  For example:

$ clang INPUTS/carbon_h.c -arch i386 -arch ppc
prints:
...
/usr/lib/gcc/i686-apple-darwin8/4.0.1/include/mmintrin.h:51:3: note: use of a target-specific builtin function, source is not 'portable'
  __builtin_ia32_emms ();
  ^

because carbon.h pulls in xmmintrin.h, and __builtin_ia32_emms isn't a builtin on ppc.

Though clang now supports target-specific builtins, the full table isn't implemented yet.

llvm-svn: 39328
2007-01-29 05:24:35 +00:00
Chris Lattner 9561a0b3e7 Add support for target-independent builtin functions (like __builtin_abs),
whose decl objects are lazily created the first time they are referenced.
Builtin functions are described by the clang/AST/Builtins.def file, which
makes it easy to add new ones.

This is missing two important pieces:
1. Support for the rest of the gcc builtins.
2. Support for target-specific builtins (e.g. __builtin_ia32_emms).

Just adding this builtins reduces the number of implicit function definitions
by 6, reducing the # diagnostics from 550 to 544 when parsing carbon.h.

I need to add all the i386-specific ones to eliminate several hundred more.
ugh.

llvm-svn: 39327
2007-01-28 08:20:04 +00:00
Chris Lattner 4194315681 Save the member list of a struct/union in the RecordDecl for the struct.
llvm-svn: 39297
2007-01-25 04:52:46 +00:00
Chris Lattner 7b9ace672b simplify structure body parsing code. Reorganize how tags are processed.
Diagnose redefintion of tag types, e.g.:

t.c:7:8: error: redefinition of 'blah'
struct blah {};
       ^
t.c:1:8: error: previous definition is here
struct blah {
       ^
2 diagnostics generated.

llvm-svn: 39286
2007-01-23 20:11:08 +00:00
Chris Lattner b8d6d5a81d Formalize preprocessor callbacks together into a PPCallbacks structure, instead
of having a loose collection of function pointers.  This also allows clients to
maintain state, and reduces the size of the Preprocessor.h interface.

llvm-svn: 39203
2006-11-21 04:09:30 +00:00
Chris Lattner 229ce60fc9 split the ParseFunctionDefinition action into two actions, one which is
called before and one which is called after function definition parsing.

llvm-svn: 39196
2006-11-21 01:21:07 +00:00
Chris Lattner 302b4be4c2 build TypedefDecl objects when parsing typedefs.
Add a parsing fastpath for when we see typedef at the top-level.

llvm-svn: 39182
2006-11-19 02:31:38 +00:00
Chris Lattner 9dfdb3c70d rearrange the type printing code so that we can do the horrible C "inside out"
thing properly.  This allows us to print types like:
int (*A)[restrict static 4][6];

properly, in addition to representing them properly. :)

llvm-svn: 39178
2006-11-13 07:38:09 +00:00
Chris Lattner 288e86ff15 Rename SemaDeclSpec.{h|cpp} back to DeclSpec.{h|cpp} now that the distinction
between sema and parse is clear.

llvm-svn: 39167
2006-11-11 23:03:42 +00:00
Chris Lattner f84a79c4e9 restructure code to build the framework for creating types from declarators.
llvm-svn: 39166
2006-11-11 22:59:23 +00:00
Chris Lattner cb6a382b67 introduce a new ASTContext class to hold long-lived ast nodes.
llvm-svn: 39161
2006-11-10 06:20:45 +00:00
Chris Lattner 88724336e9 with xcode bugs worked around, I can actually add files to the project, woo
llvm-svn: 39160
2006-11-10 05:33:04 +00:00
Chris Lattner af8d581230 move semantic analysis of statements to it's own file.
llvm-svn: 39156
2006-11-10 05:07:45 +00:00
Chris Lattner ddd6fc84cf move ASTBuilder.h/cpp to be a private Sema.h/cpp files, not part of the
interface exported by libast.

llvm-svn: 39154
2006-11-10 04:58:55 +00:00
Chris Lattner ce76529a56 move Type.h to libAST
llvm-svn: 39152
2006-11-09 06:37:20 +00:00
Chris Lattner 697e5d692b Change courses on how we do semantic analysis. Semantic analysis
fundamentally requires having an AST around, so move all sema to the
AST library.  This is the first step, later steps will be needed to
clean up libast.

llvm-svn: 39150
2006-11-09 06:32:27 +00:00
Chris Lattner 289ab7bb1d rename SemaDecl.cpp/h to SemaDeclSpec.cpp/h
llvm-svn: 39149
2006-11-08 06:54:53 +00:00
Chris Lattner 87ca807e15 add Type.h to the project
llvm-svn: 39146
2006-11-08 06:03:37 +00:00
Chris Lattner b6a0e1781f implement trivial scope caching. This reduces malloc traffic in the common
case, speeding up parsing of this contrived example:

#define A {{}}
#define B A A A A A A A A A A
#define C B B B B B B B B B B
#define D C C C C C C C C C C
#define E D D D D D D D D D D
#define F E E E E E E E E E E
#define G F F F F F F F F F F
#define H G G G G G G G G G G

void foo() {
  H
}

from 7.478s to 4.321s.  GCC requires 8.2s.

llvm-svn: 39138
2006-11-06 00:22:42 +00:00
Chris Lattner 33ad2cacc9 Make Scope keep track of the kind of scope it is. Properly scope loop and
switch statements.  Make break/continue check that they are inside of an
appropriate control-flow construct.  This implements Parser/bad-control.c.

llvm-svn: 39136
2006-11-05 23:47:55 +00:00
Chris Lattner c19ddcd6dd rename EmptyAction.cpp -> MinimalAction.cpp
llvm-svn: 39135
2006-11-05 18:46:16 +00:00
Chris Lattner 7ad0fbe1f2 rename a bunch of files for better consistency
llvm-svn: 39126
2006-11-05 07:46:30 +00:00
Chris Lattner 76af84462c use the StmtNodes.def database to eliminate redundant code.
llvm-svn: 39118
2006-11-04 20:54:18 +00:00
Chris Lattner 6fef2fb277 Add a new StmtNodes.def file as a catalog of all the Stmt's. This helps
eliminate repetitive code.

llvm-svn: 39117
2006-11-04 20:49:30 +00:00
Chris Lattner 72b7d39d78 remove full locinfo AST nodes for now. They just clutter the implementation
and should be implemented with an ASTBuilder subclass anyway.

llvm-svn: 39107
2006-11-04 06:37:16 +00:00
Chris Lattner 469d357425 implement visitor chaining.
llvm-svn: 39105
2006-11-04 06:32:52 +00:00
Chris Lattner 5e9a878126 add a new StmtVisitor class for traversing Stmt/Expr nodes.
llvm-svn: 39104
2006-11-04 06:21:51 +00:00
Chris Lattner 569ce145d8 rename Builder.cpp -> ASTBuilder.cpp
llvm-svn: 39096
2006-11-03 06:45:47 +00:00
Chris Lattner e5cca06829 Make AST nodes for ReturnStmt's and CompoundStmts
llvm-svn: 39046
2006-10-25 04:29:46 +00:00
Chris Lattner f42cce7a8e Add new Stmt class
llvm-svn: 39045
2006-10-25 04:09:21 +00:00
Chris Lattner 0ba3dc4ec3 Start removing LexerToken from the actions interface.
llvm-svn: 39043
2006-10-25 03:38:23 +00:00
Chris Lattner 8120bc7e4a add new DirectoryLookup.h file
llvm-svn: 39032
2006-10-22 07:26:43 +00:00
Chris Lattner 6cd618c3e8 update
llvm-svn: 39030
2006-10-22 06:34:13 +00:00
Chris Lattner 63dd32b656 Implement subframework lookup
llvm-svn: 39015
2006-10-20 04:42:40 +00:00
Chris Lattner 59a9ebdb17 refactor header searching stuff out of the main Preprocessor object into
it's own HeaderSearch object.  This makes Preprocessor simpler and easier
to understand.

llvm-svn: 39012
2006-10-18 05:34:33 +00:00
Chris Lattner 1ff0ed1d24 update
llvm-svn: 39010
2006-10-18 04:02:58 +00:00
Chris Lattner a11999d83a start creating proper ast nodes for variables and functions
llvm-svn: 38991
2006-10-15 22:34:45 +00:00
Chris Lattner 2cbe715b79 Add Targets.cpp.
llvm-svn: 38973
2006-10-14 07:39:38 +00:00
Chris Lattner 1e27fe165c Add new TargetInfo class to clang.
llvm-svn: 38971
2006-10-14 07:06:20 +00:00