class C {
C() { }
int a;
};
C::C() : a(10) { }
We also diagnose when initializers are used on declarations that aren't constructors:
t.cpp:1:10: error: only constructors take base initializers
void f() : a(10) { }
^
Doug and/or Sebastian: I'd appreciate a review, especially the nested-name-spec test results (from the looks of it we now match gcc in that test.)
llvm-svn: 67672
failure to perform a declaration. Instead, explicitly note semantic
failures that occur during template parsing with a DeclResult. Fixes
PR3872.
llvm-svn: 67659
of "object type" rather than the C definition of "object type". The
difference is that C's "object type" excludes incomplete types such as
struct X;
However, C's definition also makes it far too easy to use isObjectType
as a means to detect incomplete types when in fact we should use other
means (e.g., Sema::RequireCompleteType) that cope with C++ semantics,
including template instantiation.
I've already audited every use of isObjectType and isIncompleteType to
ensure that they are doing the right thing for both C and C++, so this
is patch does not change any functionality.
llvm-svn: 67648
- -emit-llvm no longer changes what compilation steps are done.
- -emit-llvm and -emit-llvm -S write output files with .o and .s
suffixes, respectively.
- <rdar://problem/6714125> clang-driver should support -O4 and -flto,
like llvm-gcc
llvm-svn: 67645
- Don't default to using clang for C++ (use -ccc-clang-cxx to
override).
- Default to only using clang on i386 and x86_64 (use
-ccc-clang-archs "" to override).
- <rdar://problem/6712350> [driver] clang should not be used on
powerpc by default
- <rdar://problem/6705767> driver should default to -ccc-no-clang-cxx
I plan to add a warning that we are not using the clang compiler for
the given compilation so that users do not think clang is being used
in situations it isn't.
This change is motivated by the desire to be able to drop clang into a
build and have things "just work", even if it happens to get used to
compile C++ code or code for an architecture we don't support yet.
llvm-svn: 67640
class C {
void g(C c);
virtual void f() = 0;
};
In this case, C is not known to be abstract when doing semantic analysis on g. This is done by recursively traversing the abstract class and checking the types of member functions.
llvm-svn: 67594
a class template. At present, we can only instantiation normal
methods, but not constructors, destructors, or conversion operators.
As ever, this contains a bit of refactoring in Sema's type-checking. In
particular:
- Split ActOnFunctionDeclarator into ActOnFunctionDeclarator
(handling the declarator itself) and CheckFunctionDeclaration
(checking for the the function declaration), the latter of which
is also used by template instantiation.
- We were performing the adjustment of function parameter types in
three places; collect those into a single new routine.
- When the type of a parameter is adjusted, allocate an
OriginalParmVarDecl to keep track of the type as it was written.
- Eliminate a redundant check for out-of-line declarations of member
functions; hide more C++-specific checks on function declarations
behind if(getLangOptions().CPlusPlus).
llvm-svn: 67575
On a synthetic command line consisting of almost all defined options,
this drops wall time from .00494 to .00336 and user time from .00258
to .00105.
On the same benchmark, clang-driver is about 15% faster than the
primary gcc driver and almost twice as fast as the gcc driver driver.
llvm-svn: 67564
clang doesn't support, and don't want to warn are unused. Eventually
these should disappear.
Here is a more readable list than is in the diff:
W options: -Wall, -Wcast-align, -Wchar-align, -Wchar-subscripts,
-Werror, -Wextra, -Winline, -Wint-to-pointer-cast, -Wmissing-braces,
-Wmost, -Wnested-externs, -Wno-format-y2k, -Wno-four-char-constants,
-Wno-missing-field-initializers, -Wno-trigraphs, -Wno-unknown-pragmas,
-Wno-unused-parameter, -Wparentheses, -Wpointer-arith,
-Wpointer-to-int-cast, -Wreturn-type, -Wshorten-64-to-32, -Wswitch,
-Wunused-function, -Wunused-label, -Wunused-value, -Wunused-variable,
-Wwrite-strings.
f options: -fasm-blocks, -fmessage-length=.
llvm-svn: 67549
library function, accept this declaration and pretend that we do not
know that this is a library function. autoconf depends on this
(broken) behavior.
llvm-svn: 67541
Daniel Dunbar