Submitted by:
Reviewed by:
Implement some FIXME's that stand in the way of fully typechecking "for"
statements. This involved:

- Adding a DeclStmt AST node (with statement visitor). The DeclStmt
printer is preliminary.
- Added a ParseDeclStmt action, called from Parser::ParseForStatement()
and Parser::ParseStatementOrDeclaration(). DID NOT add to
Parser::ParseIdentifierStatement()...probably could have, however didn't
really understand the context of this rule (will speak with Chris).
- Removed ParseExprStmt (and it's clients)...it was vestigial.

llvm-svn: 39518

Submitted by:
Reviewed by:
- Finished Sema::ParseReturnStmt(). Still need to tweak ranges.
- Tweaked location for function arguments (they now point at the expression directly, no parens or commas).
- Added InvalidOperands helper...was sick of looking at the same 3 lines in ~9 Check functions.
- Added a few diags and moved a group of statement diags to the proper comment/category.

llvm-svn: 39517

extern int pintFunc(int *, int *);

int test() {
  pintFunc(0,
           3);
}

We now print:

t3.c:4:13: warning: passing argument 2 makes pointer from integer without a cast
  pintFunc(0,
  ~~~~~~~~  ^

instead of:

t3.c:4:13: warning: passing argument 2 makes pointer from integer without a cast
  pintFunc(0,
  ~~~~~~~~

llvm-svn: 39516

Submitted by:
Reviewed by:
Implement type checking for ParseDoStmt, ParseWhileStmt, ParseIfStmt, and
ParseForStmt. ParseForStmt still under construction (contains a FIXME).

llvm-svn: 39515

Submitted by:
Reviewed by:
Add range support to Sema::CheckConditionalOperands().

llvm-svn: 39514

Submitted by:
Reviewed by:
Refine Sema::ParseCallExpr() diags (range support, add types).

Before:

func-assign.c:27:11: warning: passing argument 1 from incompatible pointer type
  pintFunc(&FOO);
          ^
func-assign.c:28:12: error: incompatible type for argument 1
  floatFunc(&FOO);
           ^
func-assign.c:29:12: error: too many arguments to function
  floatFunc(1,2,3);
           ^
After:

func-assign.c:27:11: warning: passing incompatible pointer 'struct foo *' to function expecting 'int *'
  pintFunc(&FOO);
  ~~~~~~~~^~~~~
func-assign.c:28:12: error: passing incompatible type 'struct foo *' to function expecting 'float'
  floatFunc(&FOO);
  ~~~~~~~~~^~~~~
func-assign.c:29:12: error: too many arguments to function
  floatFunc(1,2,3);
  ~~~~~~~~~^  ~

llvm-svn: 39513

Submitted by:
Reviewed by:
- Implement FIXME in Sema::CheckIndirectionOperand().
- Added "const" to FunctionDecl::getResultType().

llvm-svn: 39512

llvm-svn: 39511

llvm-svn: 39510

the label identifier.  Handle fwd references etc.  This allows us to detect
uses of undefined labels and label redefinitions, such as:

t.c:2:12: error: redefinition of label 'abc'
  abc: ;   abc:
           ^
t.c:2:3: error: previous definition is here
  abc: ;   abc:
  ^
t.c:12:12: error: use of undeclared label 'hijl'
      goto hijl;
           ^

llvm-svn: 39509

void foo() {
  if (0) break;
  abc:
  def:
  hij:
    break;

into:

void foo() {
  if ((0)')
    ;
abc:
def:
hij:
  ;

instead of dropping the if and labels (due to break not being in a loop).

llvm-svn: 39508

llvm-svn: 39507

llvm-svn: 39506

llvm-svn: 39505

llvm-svn: 39504

llvm-svn: 39503

llvm-svn: 39502

Submitted by:
Reviewed by:
- Added type checking to Sema::ParseReturnStmt (still under construction).
- Improved Expr::isLvalue() and Expr::isModifiableLvalue() to return more
info. Used the info in Sema::CheckAssignmentOperands() to produce more
descriptive diagnostics. Added FIXME to other clients of isLvalue()/etc.
- Added a SourceLocation slot to MemberExpr...changed the implementation
of getSourceRange().
- Added getResultType() helper to FunctionDecl.
- Changed many Diag calls to use the SourceRange support (now that it's
a big hit...we better milk it:-).

llvm-svn: 39501

Submitted by: Bill Wendling
Reviewed by:

- Can do just a 'cast<>()' because we're checking that it's Tagged.

llvm-svn: 39500

Submitted by: Bill Wendling
Reviewed by: Steve Naroff

- Steve suggested avoiding the dyn_cast by using the "Tagged" type class
  and having the "default" just return false.

llvm-svn: 39499

Submitted by: Bill Wendling
Reviewed by: Chris Lattner

- Rework the isDerivedType method so that if a language doesn't support
  references, it won't have to pay the price for them. This inlines the
  checks for derived types and turns it into a switch statement instead.

llvm-svn: 39498

Submitted by: Bill Wendling
Reviewed by:

C++ references testcase.

llvm-svn: 39497

Submitted by: Bill Wendling
Reviewed by: Chris Lattner

- Initial support for C++ references. Adding to the AST and Parser.
  Skeletal support added in the semantic analysis portion. Full semantic
  analysis is to be done soon.

llvm-svn: 39496

library to be built for the driver to link.

llvm-svn: 39495

llvm-svn: 39494

constants.

llvm-svn: 39493

llvm-svn: 39492

llvm-svn: 39491

llvm-svn: 39490

llvm-svn: 39489

llvm-svn: 39488

llvm-svn: 39487

llvm-svn: 39486

Submitted by:
Reviewed by:
Added "global" statistics gathering for Decls/Stmts/Exprs.
Very useful for working with a single file. When we start compiling
multiple files, will need to enhance this to collect stats on a per-module
basis.

llvm-svn: 39485

Submitted by: Bill Wendling
Reviewed by: Chris Lattner

- Removed unneeded <iostream> header.

llvm-svn: 39484

Submitted by: Bill Wendling
Reviewed by: Chris Lattner

- Changed "std::cerr" to "OS" stream to be consistent with the other
  outputs in the method.

llvm-svn: 39483

Submitted by: Bill Wendling
Reviewed by: Chris Lattner

- Comment fix.

llvm-svn: 39482

Submitted by:
Reviewed by:
One bug compiling "Carbon.h" on Leopard, one diagnostic tweak.
- CheckIndirectionOperand wasn't operating on the canonical type (so it
was complaining about typedef names).
- The diagnostic was less than great. Here's what is was:

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang t.c
t.c:4:3: error: invalid argument type to unary expression 'int'
 *p;
 ^~

And here's what I changed it to...

snaroff:clang naroff$ ../../Debug/bin/clang bug.c
bug.c:5:3: error: indirection requires a pointer ('int' operand invalid)
  *p;
  ^~

llvm-svn: 39481

Submitted by:
Reviewed by:
Add Makefile

llvm-svn: 39480

llvm-svn: 39479