Phase 2 of making the Decl class more lightweight...

Move Identifier/Loc instance variables (and associated getters/setters) down from Decl to ScopedDecl/FieldDecl.

Objc AST's can now inherit from Decl without getting instance variables and types that are C specific. For now, I am keeping NextDeclarator, since I believe it may be useful to ObjC. If not, it can be moved later.

llvm-svn: 41934

a limited form of PHI nodes.  This finally fixes PR1639, speeding 179.art up
from 7.84s to 3.13s on PPC.

llvm-svn: 41933

llvm-svn: 41932

Add "ScopedDecl" AST, used by ValueDecl and TypeDecl. 

This allows us to sink the "Next" field, which isn't used by FieldDecl and ObjcIvarDecl.

llvm-svn: 41931

along the way of PR1639

llvm-svn: 41930

llvm-svn: 41929

bitcasts and phis.  This is a step to fixing PR1639.

llvm-svn: 41928

nodes.  This is the first step of the fix for PR1639.

llvm-svn: 41927

llvm-svn: 41926

llvm-svn: 41925

llvm-svn: 41924

llvm-svn: 41923

the front-end adopts APFloat though.  This fixes test/CodeGen/mandel.c

llvm-svn: 41908

llvm-svn: 41907

llvm-svn: 41906

llvm-svn: 41901

llvm-svn: 41900

llvm-svn: 41899

llvm-svn: 41898

1.
[(set GR32:$dst, (add GR32:$src1, GR32:$src2)),
 (modify EFLAGS)]
This indicates the source pattern expects the instruction would produce 2 values. The first is the result of the addition. The second is an implicit definition in register EFLAGS.
2.
def : Pat<(parallel (addc GR32:$src1, GR32:$src2), (modify EFLAGS)), ()>
Similar to #1 except this is used for def : Pat patterns.

llvm-svn: 41897

Add ASTContext::StringMap<char> to unique selector names.

llvm-svn: 41894

llvm-svn: 41893

Removed extraneous call to Observer->ObserveStmt when handling DeclRefExprs.

llvm-svn: 41890

diagnostic for illegal initializers.

llvm-svn: 41889

llvm-svn: 41888

llvm-svn: 41887

llvm-svn: 41886

is much simpler now.

llvm-svn: 41885

are useful for dataflow analysis: CFGStmtVisitor and DataflowStmtVisitor.

CFGStmtVisitor is the same as StmtVisitor is that it has separate visitors
for "root" statements in a CFGBlock (statements that have a designated
slot int the list of statements in a CFGBlock).  It also recognizes statements
that have implicit control-flow, and calls special visitor methods for those.

DataflowStmtVisitor extends CFGStmtVisitor to serve as a template for
implementing transfer functions.  It does a pre-/post-order traversal of
substatements depending on whether we are doing a forward/backward analysis.
It also has special handling for implicit-control-flow statements so that
they are visited only once.

llvm-svn: 41884

llvm-svn: 41881

to use of @property.

llvm-svn: 41880

using it for live-in values etc.

llvm-svn: 41879

Removed clang solution file for VC++, which didn't work properly because of hard coded paths in the llvm project files.
Changed windows detection to use LLVM pp constant.

llvm-svn: 41878

Fix the following bug submitted by Ted Kremenek:

void func() {
int xx = xx; // incorrectly diagnosed 'xx' as an undeclared identifier.
}

This smallish bug resulted in a largish fix. Here are some highlights:

- Needed to make sure ParseDeclarator is called *before* parsing any
initializer. Removed the "Init" argument to ParseDeclarator.
- Added AddInitializerToDecl() to the Action & Sema classes.
In Sema, this hook is responsible for validating the initializer and
installing it into the respective decl.
- Moved several semantic checks from ParseDeclarator() to 
FinalizeDeclaratorGroup(). Previously, this hook was only responsible for 
reversing a list. Now it plays a much larger semantic role. 

All of the above changes ended up simplifying ParseDeclarator(), which
is goodness...

llvm-svn: 41877

llvm-svn: 41876

Next round of x87 long double stuff.
Getting close now, basically works.

llvm-svn: 41875

(could break hash table in ConstantFP)

llvm-svn: 41874

llvm-svn: 41873

llvm-svn: 41872

same time. Do not mark the "smaller" def as dead.

llvm-svn: 41871