llvm-svn: 39884

llvm-svn: 39868

virtual->physical mapping explicitly.

llvm-svn: 39867

This is the final step/commit for implementing exlicit implicit casts. Unlike the 
previous two checkins, which involved lot's of tedious refactoring, this checkin is nice and clean:-)

- Hacked UsualUnaryConversions, UsualArithmeticConversions, and DefaultFunctionArrayConversion
to create the AST node (using a helper function promoteExprToType).
- Added a setType method to Expr.
- Changed Expr::isIntegerConstantExpr to allow for the new node.

llvm-svn: 39866

llvm-svn: 39865

This doesn't significantly improve carbon.h, but it does speed up
INPUTS/macro_pounder_obj.c by 48%

llvm-svn: 39864

which makes it multithread clean.

llvm-svn: 39863

explicitly new'd array.  The array never mutates once created, so a vector
is overkill.

llvm-svn: 39862

This speeds up parsing carbon.h by 3.3% by avoiding some malloc traffic for 
small macros.

llvm-svn: 39861

llvm-svn: 39860

code more obvious.

llvm-svn: 39859

llvm-svn: 39858

llvm-svn: 39853

compute type alignment.  This info is needed for struct layout.

llvm-svn: 39850

vars.  Approach suggested by Keith.

llvm-svn: 39849

llvm-svn: 39848

llvm-svn: 39847

llvm-svn: 39846

llvm-svn: 39842

llvm-svn: 39841

More changes related to implementing ImplicitCastExpr.

- Fixed a recent regression discovered by Keith Bauer (thanks!). 
The fix involved adding (back) two arguments to UsualArithmeticConversions.
Without the reference arguments, no unary conversions were being passed back
to the caller. This had the effect of turning off the UsualUnaryConversions.
- Refactored CheckAssignmentConstraints into 3 functions. CheckAssignmentConstraints,
CheckSingleAssignmentConstraints, and CheckCompoundAssignmentConstraints. 
- Changed the argument type of DefaultFunctionArrayConversion from QualType->Expr*&.
- Removed a bunch of casts in routines I was working on (cleanup).
- Fixed the visitor for ImplicitCastExpr (oops).

llvm-svn: 39840

llvm-svn: 39838

llvm-svn: 39837

llvm-svn: 39836

where ASTContext can manage caches for struct layout, etc.

llvm-svn: 39835

on test/Sema/implicit-int.c

llvm-svn: 39833

llvm-svn: 39832

llvm-svn: 39831

llvm-svn: 39830

llvm-svn: 39829

llvm-svn: 39826

llvm-svn: 39824

assert is now done in UsualUnaryConversions().

llvm-svn: 39818

llvm-svn: 39815

Add (explicit) AST support for implicit casts. This should simplify the 
code generator. Source translation tools can simply ignore this node.

- Added a new Expr node, ImplicitCastExpr.
- Changed UsualUnaryConversions/UsualArithmeticConversions to take references 
to Expr *'s. This will allow these routines to instantiate the new AST node
and pass it back.
- Changed all clients of UsualUnary/UsualArithmetic (lot's of diff's).
- Changed some names in CheckConditionalOperands. Several variables where
only distinguished by their case (e.g. Cond, cond). Yuck (what was I thinking).
- Removed an old/crufty constructor in CastExpr (cleanup).

This check-in does not actually create the new AST node. I wanted to separate
the mechanical changes from the semantic changes. In addition, I need to 
coordinate with Chris, since the semantic change will break the code generator.

llvm-svn: 39814

llvm-svn: 39812

llvm-svn: 39797

Both in one patch, and the test case that Chris didn't commit last
time is in there too...

I'll split the patch up if somebody wants it split."

Patch by Keith Bauer.

llvm-svn: 39796

llvm-svn: 39795

I've added a tests/CodeGen directory, and a test for this case that
used to fail and now passes."

Patch by Keith Bauer

llvm-svn: 39794