Fix Sema::ParseCallExpr()...it wasn't doing the default array/function promotions on it's argument types.

This resulted in the following errors when compiling promote_types_in_proto.c test...

[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang test/Parser/promote_types_in_proto.c 
test/Parser/promote_types_in_proto.c:7:24: error: incompatible types passing 'char *[]' to function expecting 'char *const []'
        arrayPromotion(argv);
        ~~~~~~~~~~~~~~ ^~~~
test/Parser/promote_types_in_proto.c:8:27: error: incompatible types passing 'void (char *const [])' to function expecting 'void (char *const [])'
        functionPromotion(arrayPromotion);
        ~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~
2 diagnostics generated.

When fixing this, noticed that both ParseCallExpr() and ParseReturnStmt() were prematurely comparing types for
equivalence. This is incorrect (since the expr. promotions haven't been done yet). To fix this, I moved the
check "down" to Sema::CheckAssignmentConstraints().

I also converted Type::isArrayType() to the modern API (since I needed it). Still more Type predicates to 
convert.

llvm-svn: 40475

llvm-svn: 40474

Pretty hackish, but code itself is dirty mess, so we won't make anything worse. :)

llvm-svn: 40472

llvm-svn: 40471

llvm-svn: 40470

load elimination code from RedundantLoadElimination.

llvm-svn: 40469

llvm-svn: 40466

This implements test/Sema/stmt_exprs.c

llvm-svn: 40465

llvm-svn: 40464

llvm-svn: 40462

This speeds up -E on xalancbmk by 2.4%

llvm-svn: 40461

llvm-svn: 40460

bottleneck for -E computation, because every token that starts a line needs
to determine *which* line it is on (so -E mode can insert the appropriate 
vertical whitespace).  This optimization improves this common case where
it is striding through the line # table.

This speeds up -E on xalancbmk by 3.2%

llvm-svn: 40459

llvm-svn: 40458

llvm-svn: 40457

llvm-svn: 40456

2. Fold an if statement into the Assert1 macro call.

llvm-svn: 40455

by Neil Booth.  This fixes Preprocessor/output_paste_avoid.c

llvm-svn: 40454

to use sret or inreg on the function. It is equally illegal to use noreturn
or nounwind on a parameter; they only go with the function. This patch
enforces these rules.

llvm-svn: 40453

Patch by Neil Booth!

llvm-svn: 40452

llvm-svn: 40451

llvm-svn: 40450

llvm-svn: 40449

llvm-svn: 40448

llvm-svn: 40447

llvm-svn: 40446

llvm-svn: 40445

llvm-svn: 40444

llvm-svn: 40443

llvm-svn: 40441

llvm-svn: 40440

undefs.

llvm-svn: 40439

this fixes test/Sema/switch.c.

llvm-svn: 40438

that cannot be suppressed and cannot be redirected:
they are dumped in the current working directory.
When running the testsuite this means that these
files do not end up in the Output directory.  The
best solution I could find is to change directory
into Output before running tests.

llvm-svn: 40437

RUN line in Support.  Give up on sending output
to /dev/null - this cannot always be arranged.

llvm-svn: 40436

Fix -include line so it doesn't reference /dev/null

llvm-svn: 40429

produces warning from make about bad timestamp on /dev/null

Patch by Holger Schurig.

llvm-svn: 40426

llvm-svn: 40424

This speeds up -E on 447.dealII by 5.8%

llvm-svn: 40423

trivial to handle and very very common.  This speeds up -E on 
447.dealII by 2.5%

llvm-svn: 40422