UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.

llvm-svn: 56024

floating-point numbers.

llvm-svn: 56023

llvm-svn: 56022

-fast-isel-no-abort to get a dump of all unhandled instructions,
without an abort.

llvm-svn: 56021

Make IdentifierResolver::isDeclInScope regard declarations of a parent 'control' scope as part of the current scope.
The 'control' scope is the 'condition' scope of if/switch/while statements and the scope that contains the for-init-statement and 'condition' of a for statement.

e.g:
if (int x = 0 /*'control' scope*/) {
  // x will be regarded as part of this substatement scope.
} else {
  // and as part of this substatement scope too.
}

llvm-svn: 56020

llvm-svn: 56019

llvm-svn: 56018

extend the type of induction variable.

llvm-svn: 56017

llvm-svn: 56016

Make Sema pass the LangOptions to IdentifierResolver's constructor.

llvm-svn: 56015

No functionality change.

llvm-svn: 56014

 - For the time being this means our emitted code is somewhat worse,
   especially for aggregates. This will be fixed.

llvm-svn: 56013

llvm-svn: 56012

llvm-svn: 56011

 - No functionality change.

llvm-svn: 56010

llvm-svn: 56009

  values.
- Refactored some of the code.

llvm-svn: 56008

Implement parser support for the 'condition' part of C++ selection-statements and iteration-statements (if/switch/while/for).
Add new 'ActOnCXXConditionDeclarationExpr' action, called when the 'condition' is a declaration instead of an expression.

llvm-svn: 56007

Fix PR2757. Ignore liveinterval register allocation preference if the preference register is not in the right register class. This can happen due to sub-register coalescing.

llvm-svn: 56006

llvm-svn: 56005

llvm-svn: 56004

llvm-svn: 56003

llvm-svn: 56002

llvm-svn: 56001

precisions.

llvm-svn: 56000

It's already special-cased and treated as rematerializable within
LiveIntervals; this allows it to be handled by other passes
such as TwoAddressInstrctionPass.

llvm-svn: 55999

llvm-svn: 55998

llvm-svn: 55997

No functionality change.

llvm-svn: 55996

users, and teach it about shufflevector instructions.

Also, fix a subtle bug in SimplifyDemandedVectorElts'
insertelement code.

This is a patch that was originally written by Eli Friedman,
with some fixes and cleanup by me.

llvm-svn: 55995

llvm-svn: 55994

Fix outdated comment.

llvm-svn: 55993

llvm-svn: 55992

llvm-svn: 55991

- Replace string comparisons with pre-defined idents.
- Avoid calling isBuiltinObjCType() to avoid two checks. 
- Remove isBuiltinObjCType(), since it was only used in Sema::MergeTypeDefDecl().
- Have Sema::MergeTypeDefDecl() set the new type.

This is a moidified version of an patch by David Chisnall.

llvm-svn: 55990

llvm-svn: 55989

llvm-svn: 55988

(1) code left over from the days of ConstantPointerRef:
if a use of a function is a GlobalValue then that is
not considered a reason to add an edge from the external
node, even though the use may be as an initializer for
an externally visible global!  There might be some point
to this behaviour when the use is by an alias (though the
code predated aliases by some centuries), but I think
PR2782 is a better way of handling that.  (2) If function
F calls function G, and also G is a parameter to the
call, then an F->G edge is not added to the callgraph.
While this doesn't seem to matter much, adding such an
edge makes the callgraph more regular.
In addition, the new code should be faster as well as
simpler.

llvm-svn: 55987

llvm-svn: 55986

llvm-svn: 55985