Change WarnUnsupported to ErrorUnsupported (in name and in practice).
- We are beyond the point where this shows up often and when it does
generating miscompiled files is bad.

llvm-svn: 54836

More #include cleaning
- Remove internal uses of AST.h

llvm-svn: 54628

update to make IRBuilder API change.

llvm-svn: 54548

remove uses of QualType::getCanonicalType() from codegen for PR2189

llvm-svn: 54107

This patch is motivated by numerous strict-aliasing warnings when compiling
clang as a Release build.

The big change is that all AST nodes (subclasses of Stmt) whose children are
Expr* store their c

This patch is motivated by numerous strict-aliasing warnings when compiling
clang as a Release build.

The big change is that all AST nodes (subclasses of Stmt) whose children are
Expr* store their children as Stmt* or arrays of Stmt*. This is to remove
strict-aliasing warnings when using StmtIterator. None of the interfaces of any
of the classes have changed (except those with arg_iterators, see below), as the
accessor methods introduce the needed casts (via cast<>). While this extra
casting may seem cumbersome, it actually adds some important sanity checks
throughout the codebase, as clients using StmtIterator can potentially overwrite
children that are expected to be Expr* with Stmt* (that aren't Expr*). The casts
provide extra sanity checks that are operational in debug builds to catch
invariant violations such as these.

For classes that have arg_iterators (e.g., CallExpr), the definition of
arg_iterator has been replaced. Instead of it being Expr**, it is an actual
class (called ExprIterator) that wraps a Stmt**, and provides the necessary
operators for iteration. The nice thing about this class is that it also uses
cast<> to type-checking, which introduces extra sanity checks throughout the
codebase that are useful for debugging.

A few of the CodeGen functions that use arg_iterator (especially from
OverloadExpr) have been modified to take begin and end iterators instead of a
base Expr** and the number of arguments. This matches more with the abstraction
of iteration. This still needs to be cleaned up a little bit, as clients expect
that ExprIterator is a RandomAccessIterator (which we may or may not wish to
allow for efficiency of representation).

This is a fairly large patch. It passes the tests (except CodeGen/bitfield.c,
which was already broken) on both a Debug and Release build, but it should
obviously be reviewed.

llvm-svn: 52378

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Add support for init lists for complex variables.

llvm-svn: 51080

use simplified API for making fp constants.

llvm-svn: 50623

update to follow mainline llvm API change.

llvm-svn: 49607

Add support for C++ default arguments, and rework Parse-Sema
interaction for function parameters, fixing PR2046.

Patch by Doug Gregor!

llvm-svn: 49369

tracking API changes arising from r49277

llvm-svn: 49279

Since isComplexType() no longer returns true for _Complex integers, the code
generator needs to call isAnyComplexType(). This fixes PR1960.

llvm-svn: 49220

simplify the clang codegen by using the new Builder.CreateStructGEP method.

llvm-svn: 48534

Make a major restructuring of the clang tree: introduce a top-level
lib dir and move all the libraries into it. This follows the main
llvm tree, and allows the libraries to be built in parallel. Th

Make a major restructuring of the clang tree: introduce a top-level
lib dir and move all the libraries into it. This follows the main
llvm tree, and allows the libraries to be built in parallel. The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in. This speeds
up parallel builds, particularly incremental ones.

llvm-svn: 48402

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