Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.

llvm-svn: 102012

property synthesis is using a super class ivar.

llvm-svn: 102011

Pass the InitializedEntity to Sema::CheckConstructorAccess and use it to report different diagnostics depending on which entity is being initialized.

llvm-svn: 102010

GCCAS time for MultiSource/Benchmarks/ASCI_Purple/SMG2000.

llvm-svn: 102009

llvm-svn: 102008

llvm-svn: 102007

So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.

The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.

llvm-svn: 102006

llvm-svn: 102005

Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.

llvm-svn: 102004

with ScalarEvolution's overall approach to pointer types.

llvm-svn: 102003

llvm-svn: 102001

llvm-svn: 101999

because EmitBranch actually clears the insert point.  This version
actually accomplishes what I initially wanted.

llvm-svn: 101998

(if there's a current block).  The chief advantage of doing this is that it
lets us pick blocks (e.g. EH blocks) to push to the end of the function so
that fallthrough happens consistently --- i.e. it gives us the flexibility
of ordering blocks as we please without having to change the order in which
we generate code.  There are standard (?) optimization passes which can do some
of that for us, but better to generate reasonable code to begin with.

llvm-svn: 101997

just to save the current insertion state!  This change significantly
simplifies the IR CFG in exceptions code.

llvm-svn: 101996

llvm-svn: 101995

llvm-svn: 101994

llvm-svn: 101992

and only define it where we know we need it---Linux and Cygwin. Thanks
to Chris for the prodding.

llvm-svn: 101989

llvm-svn: 101988

editing to do.

llvm-svn: 101987

llvm-svn: 101986

don't have updates for 2.7.

llvm-svn: 101985

optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984

llvm-svn: 101983

llvm-svn: 101982

llvm-svn: 101981

llvm-svn: 101980

llvm-svn: 101979

llvm-svn: 101978

llvm-svn: 101977

llvm-svn: 101976

SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975

before reglist were not properly handled with respect to IT Block.  Fix that by
creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those
instructions for disassembly.  Add a test case.

llvm-svn: 101974

we have RefreshCallGraph detect when a function pass devirtualizes
a call, and have CGSCCPassMgr iterate (up to a count) when this 
happens.  This allows (in the example) GVN to devirtualize the 
call in foo, then the inliner to inline it away.

This is not currently enabled because I haven't done any analysis
on the (potentially substantial) code size or performance impact of
doing this, and guess what, it exposes callgraph updating bugs in
various passes.  This is progress though, and you can play with it
by passing -max-cg-scc-iterations=5 to opt.

llvm-svn: 101973

expressions, to improve source-location information, clarify the
actual receiver of the message, and pave the way for proper C++
support. The ObjCMessageExpr node represents four different kinds of
message sends in a single AST node:

  1) Send to a object instance described by an expression (e.g., [x method:5])
  2) Send to a class described by the class name (e.g., [NSString method:5])
  3) Send to a superclass class (e.g, [super method:5] in class method)
  4) Send to a superclass instance (e.g., [super method:5] in instance method)

Previously these four cases where tangled together. Now, they have
more distinct representations. Specific changes:

  1) Unchanged; the object instance is represented by an Expr*.

  2) Previously stored the ObjCInterfaceDecl* referring to the class
  receiving the message. Now stores a TypeSourceInfo* so that we know
  how the class was spelled. This both maintains typedef information
  and opens the door for more complicated C++ types (e.g., dependent
  types). There was an alternative, unused representation of these
  sends by naming the class via an IdentifierInfo *. In practice, we
  either had an ObjCInterfaceDecl *, from which we would get the
  IdentifierInfo *, or we fell into the case below...

  3) Previously represented by a class message whose IdentifierInfo *
  referred to "super". Sema and CodeGen would use isStr("super") to
  determine if they had a send to super. Now represented as a
  "class super" send, where we have both the location of the "super"
  keyword and the ObjCInterfaceDecl* of the superclass we're
  targetting (statically).

  4) Previously represented by an instance message whose receiver is a
  an ObjCSuperExpr, which Sema and CodeGen would check for via
  isa<ObjCSuperExpr>(). Now represented as an "instance super" send,
  where we have both the location of the "super" keyword and the
  ObjCInterfaceDecl* of the superclass we're targetting
  (statically). Note that ObjCSuperExpr only has one remaining use in
  the AST, which is for "super.prop" references.

The new representation of ObjCMessageExpr is 2 pointers smaller than
the old one, since it combines more storage. It also eliminates a leak
when we loaded message-send expressions from a precompiled header. The
representation also feels much cleaner to me; comments welcome!

This patch attempts to maintain the same semantics we previously had
with Objective-C message sends. In several places, there are massive
changes that boil down to simply replacing a nested-if structure such
as:

  if (message has a receiver expression) {
    // instance message
    if (isa<ObjCSuperExpr>(...)) {
     // send to super
    } else {
     // send to an object
   }
  } else {
    // class message
    if (name->isStr("super")) {
      // class send to super
    } else {
      // send to class
    }
  }

with a switch

  switch (E->getReceiverKind()) {
  case ObjCMessageExpr::SuperInstance: ...
  case ObjCMessageExpr::Instance: ...
  case ObjCMessageExpr::SuperClass: ...
  case ObjCMessageExpr::Class:...
  }

There are quite a few places (particularly in the checkers) where
send-to-super is effectively ignored. I've placed FIXMEs in most of
them, and attempted to address send-to-super in a reasonable way. This
could use some review.

llvm-svn: 101972

  extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.

llvm-svn: 101971

recursive callsites, inlining can reduce the number of calls by
exponential factors, as it does in
MultiSource/Benchmarks/Olden/treeadd. More involved heuristics
will be needed.

llvm-svn: 101969

fixes a bug (<rdar://problem/7880900>) in the JIT. This code wouldn't work:

target triple = "x86_64-apple-darwin"

define double @func(double %a) {
  %tmp1 = fmul double %a, 5.000000e-01            ; <double> [#uses=1]
  ret double %tmp1
}

define i32 @main() nounwind {
  %1 = call double @func(double 4.770000e-04) ; <i64> [#uses=0]
  ret i32 0
}

llvm-svn: 101965

llvm-svn: 101964