llvm-svn: 57240

llvm-svn: 57225

llvm-svn: 57222

llvm-svn: 57220

Simplify handling of direct initializers by letting Sema::AddInitializerToDecl handle conversions, instead of using Sema::ActOnCXXTypeConstructExpr.
Additional benefit is that diagnostics are the same for both direct-initialization and copy-initialization.

In the case of "int x( expression );":
-The Init expression of VarDecl 'x' will be the expression inside the parentheses.
-VarDecl::hasCXXDirectInitializer for VarDecl 'x' will return true to let clients distinguish from "int x = expression ;".

llvm-svn: 57219

Modified DeclGroupRef to always load/store the internal pointer value as Decl*.  This hopefully will obviate any concerns with violating strict type-aliasing issues.

llvm-svn: 57213

Use DeclStmt::getSolitaryDecl() instead of DeclStmt::getDecl() when processing the Decl of an Objective-C foreach statement.

llvm-svn: 57209

Use DeclStmt::getSolitaryDecl() instead of DeclStmt::getDecl() when processing the Decl of a @catch statement.

llvm-svn: 57208

When processing Objective-C foreach statements, first check to see if the statement has a DeclStmt with a single Decl.  Afterwards, use DeclStmt::getSolitaryDecl() to access that Decl (thus avoiding an assertion being triggered).  These changes remove an unneeded use of ScopedDecl::getNextDeclarator() and DeclStmt::getDecl().

llvm-svn: 57207

llvm-svn: 57206

This patch precedes removing getDecl() DeclStmt::entirely.

llvm-svn: 57205

llvm-svn: 57204

Use "unsigned" instead of "int" for i to remove a "comparison between unsigned and signed" warning (potential integer overflow).

llvm-svn: 57201

llvm-svn: 57198

Use the DeclStmt::decl_iterator to get the first decl in a DeclStmt instead of using DeclStmt::getDecl().

llvm-svn: 57196

Don't use DeclStmt::getDecl(); this will eventually disappear.  Just fetch the first decl using the DeclStmt::decl_iterator.

llvm-svn: 57194

llvm-svn: 57192

Added PrintRawDeclStmt; use this method to print out DeclStmt instead of using PrintRawDecl (which falsely assumes DeclStmts have only one Decl).

llvm-svn: 57191

llvm-svn: 57190

Use DeclStmt::decl_iterator instead of using Decl::getDecl().  Soon DeclStmts will wrap group of Decls.
Added FIXME.

llvm-svn: 57189

Add a FIXME until class constructors are supported.

llvm-svn: 57188

This is how this kind of initializers appear in the AST:
-The Init expression of the VarDecl is a functional type construction (of the VarDecl's type).
-The new VarDecl::hasCXXDirectInitializer() returns true.

e.g, for "int x(1);":
-VarDecl 'x' has Init with expression "int(1)" (CXXFunctionalCastExpr).
-hasCXXDirectInitializer() of VarDecl 'x' returns true.

A major benefit is that clients that don't particularly care about which exactly form was the initializer can handle both cases without special case code.
Note that codegening works now for "int x(1);" without any changes to CodeGen.

llvm-svn: 57178

won't expand to the builtin.  This fixes rdar://6248329

llvm-svn: 57164

constant lvalue.  Implement this in codegen by moving the code out of CGBuiltin
into EmitConstantExpr.

llvm-svn: 57163

llvm-svn: 57162

it is possible that a builtin could sometimes be folded (e.g. __builtin_clz)
if it's operand is a constant.

llvm-svn: 57161

which is checking for something that can be inconsistent with
what we can constant fold.

llvm-svn: 57159

interface into the constant folding interface.

llvm-svn: 57158

llvm-svn: 57157

do it instead.  We should still handle __builtin_nan etc, but don't yet.
This fixes incorrect evaluation of __builtin_constant_p, a FIXME.

llvm-svn: 57156

constants for them, just use the constant evaluator to do the job.  This
also fixes crashes on 'unknown constant builtins'.

llvm-svn: 57155

llvm-svn: 57154

condition as a constant even if the unevaluated side is a not a constant.
We don't do this when extensions are off, and we emit a warning when this 
happens:

t.c:22:11: warning: expression is not a constant, but is accepted as one by GNU extensions
short t = __builtin_constant_p(5353) ? 42 : somefunc();
          ^                                 ~~~~~~~~~~

suggestions for improvement are welcome.  This is obviously horrible, but
is required for real-world code.

llvm-svn: 57153

__builtin_constant_p properly, and add some scaffolding for
FloatExprEvaluator to eventually handle huge_val and inf.

llvm-svn: 57152

code.

llvm-svn: 57151

llvm-svn: 57150

llvm-svn: 57149

llvm-svn: 57146

llvm-svn: 57145

llvm-svn: 57144