llvm-svn: 68098

llvm-svn: 68095

llvm-svn: 68094

Remove the "fast" cases for spill and restore point determination, as these were subtlely wrong in obscure cases.  Patch the testcase
to account for this change.

llvm-svn: 68093

llvm-svn: 68092

llvm-svn: 68091

disable this feature for now, to err on the side of rejecting instead
of sometimes crashing.  rdar://6326239

llvm-svn: 68088

llvm-svn: 68087

llvm-svn: 68086

llvm-svn: 68085

llvm-svn: 68084

instructions. This fixes lua.

llvm-svn: 68083

X86 address mode isel tweak. If the base of the address is also used by a CopyToReg (i.e. it's likely live-out), do not fold the sub-expressions into the addressing mode to avoid computing the address twice. The CopyToReg use will be isel'ed to a LEA, re-use it for address instead.

This is not yet enabled.

llvm-svn: 68082

within nested-name-specifiers, e.g., for the "apply" in

  typename MetaFun::template apply<T1, T2>::type

At present, we can't instantiate these nested-name-specifiers, so our
testing is sketchy.

llvm-svn: 68081

llvm-svn: 68079

llvm-svn: 68077

Implement UCN support for C string literals (C99 6.4.3) and add some very basic tests. Chris Goller has graciously offered to write some test to help validate UCN support.

From a front-end perspective, I believe this code should work for ObjC @-strings. At the moment, I believe we need to tweak the code generation for @-strings (which doesn't appear to handle them). Will be investigating.

llvm-svn: 68076

llvm-svn: 68075

representation handles the various ways in which one can name a
template, including unqualified references ("vector"), qualified
references ("std::vector"), and dependent template names
("MetaFun::template apply").

One immediate effect of this change is that the representation of
nested-name-specifiers in type names for class template
specializations (e.g., std::vector<int>) is more accurate. Rather than
representing std::vector<int> as

  std::(vector<int>)

we represent it as

  (std::vector)<int>

which more closely follows the C++ grammar. 

Additionally, templates are no longer represented as declarations
(DeclPtrTy) in Parse-Sema interactions. Instead, I've introduced a new
OpaquePtr type (TemplateTy) that holds the representation of a
TemplateName. This will simplify the handling of dependent
template-names, once we get there.

llvm-svn: 68074

only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.

llvm-svn: 68073

assume that @catch blocks are never executed.

llvm-svn: 68072

Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.

llvm-svn: 68071

it.  Will discuss offline whether symbolic regions should by typed or typeless.

llvm-svn: 68070

llvm-svn: 68069

llvm-svn: 68068

llvm-svn: 68067

When optimzing a mul by immediate into two, the resulting mul's should get a x86 specific node to avoid dag combiner from hacking on them further.

llvm-svn: 68066

Turn a 2-address instruction into a 3-address one when it's profitable even if the two-address operand is killed.
e.g.
%reg1024<def> = MOV r1
%reg1025<def> = ADD %reg1024, %reg1026
r0            = MOV %reg1025

If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy.

llvm-svn: 68065

objc2's ivar synthesis.

llvm-svn: 68064

llvm-svn: 68063

llvm-svn: 68062

 - Patch by Ed Schouten!

llvm-svn: 68061

llvm-svn: 68060

llvm-svn: 68059

declaration. Reject it.

llvm-svn: 68058

llvm-svn: 68057

anything pointer-like, which may or may not actually be a pointer.

llvm-svn: 68056

allow the traits to be specified as well.

llvm-svn: 68055

llvm-svn: 68054

valid argument attributes (zeroext and signext are).

llvm-svn: 68053