isn't guaranteed to exist. This fixes a crash with conflicting typedefs
coming from stdin.
This also fixes the crash in PR2406, but doesn't completely fix the
issue; it appears there's something strange about the physical location
for the definition of int64_t in stdlib.h.
llvm-svn: 52209
pointer cast hack currently in isIntegerConstantExpr
(in lib/AST/Expr.cpp). Also removes an odd test that even gcc doesn't accept.
The reason the pointer cast hack is relevant here is that it makes Sema
end up misinterpreting the relevant expression as a null pointer constant.
The reason for this patch is that I plan to remove the pointer cast hack
sometime soon because it causes strange issues, especially in its
current form; see my recent email to cfe-dev
"[PATCH] add constant expression evaluation to the AST and fix PR2413".
llvm-svn: 52120
moves the check for the invalid construct to a point where it doesn't
affect other uses of isIntegerConstantExpr, and we can warn properly
when the extension is used. This makes it a bit more complicated, but
it's a lot cleaner.
Steve, please tell me if this check is sufficient to handle the
relevant system header. I know it's enough to handle the testcase, but
I don't know what exactly the original looks like.
llvm-svn: 51918
required by the standard (the standard doesn't know anything about
implicit casts).
Disallow pointers cast to non-integral arithmetic types as constant
expressions. This was previously allowed by accident.
llvm-svn: 51779
encountered. Mixing up the decls is unintuitive, and confuses the AST
destruction code. Fixes PR2360.
Note that there is a need to look up the characteristics and
declarations of a function associated with a particular name or decl,
but the original swapping code doesn't solve it properly.
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-May/001644.html is one
suggestion for how to fix that.
llvm-svn: 51584
it fixes PR2204. Not too much to say about the implementation; it works
in a similar way to the vector size attribute.
At some point, we need to modify the targets to provide information
about the appropriate types.
llvm-svn: 51577
Turns out that there are multiple places where a redefinition diagnostic can be emitted. A cleaner solution (without touching Sema) is to have
the Driver turn off these diagnostics. (will submit this patch soon)
llvm-svn: 51502
lib/CodeGen/CGExpr.cpp and to change include/clang/AST/Attr.h to
use its own enum for visibility types instead of using
llvm::GlobalValue::VisibilityTypes. These changes eliminate
dependencies in the AST library on LLVM's VMCore library.
llvm-svn: 51398
in Sema, per discussion on mailing list. This doesn't cause any changes
in the test results. I'll probably add some more tests at some point,
but it's an open question what we need to accept to be compatible with
real code.
This doesn't touch the existing isConstantExpr method on Expr; that
should be addressed somehow eventually (either removed or refined to
whatever is appropriate).
llvm-svn: 51318
-identifierResolver exposes an iterator interface to get all decls through the scope chain.
-The semantic staff (checking IdentifierNamespace and Doug's checking for shadowed tags were moved out of IdentifierResolver and back into Sema. IdentifierResolver just gives an iterator for all reachable decls of an identifier.
llvm-svn: 50923
NOTE: This work is incomplete and still fails many tests (as a result, it isn't enabled yet). Nevertheless, I wanted to check it in so I can work on it from home.
llvm-svn: 50544
-NamespaceDecl for the AST
-Checks for name clashes between namespaces and tag/normal declarations.
This commit doesn't implement proper name lookup for namespaces.
llvm-svn: 50321
DeclContext *CtxDecl -> DeclContext *DeclCtx
DeclContext *CD -> DeclContext *DC
It makes the code more consistent."
Patch by Zhongxing Xu!
llvm-svn: 50105
-Added TranslationUnitDecl class to serve as top declaration context
-ASTContext gets a TUDecl member and a getTranslationUnitDecl() function
-All ScopedDecls get the TUDecl as DeclContext when declared at global scope
llvm-svn: 49855
This is a fairly mechanical/large change. As a result, I avoided making any changes/simplifications that weren't directly related. I did break two Analysis tests. I also have a couple FIXME's in UninitializedValues.cpp. Ted, can you take a look? If the bug isn't obvious, I am happy to dig in and fix it (since I broke it).
llvm-svn: 49748
allows the parsing of "class" in addition to "struct" and "union" to
declare a record. So this patch allows:
class C { };
class C c1;
But it does not contain the lookup bits, so this won't work yet:
C c2;
Patch by Doug Gregor!
llvm-svn: 49613
1) objc ivar processing is split out of ActOnField into its own ActOnIvar method.
2) the new objc ivar action takes visibility info directly, eliminating
AllVisibilities in ParseObjCClassInstanceVariables.
llvm-svn: 49506
