Partial fix for <rdar://problem/6645157> [clang on Xcode; regression]: error: instance variable 'someField' is private.

A recent regression caused by http://llvm.org/viewvc/llvm-project?rev=65912&view=rev.

This commit isn't fully baked. Nevertheless, it should cause Xcode to compile again. Will speak with Fariborz offline.

llvm-svn: 66045

llvm-svn: 66044

Refactor code. 

llvm-svn: 66043

BlockModule.  No functionality change.  This should help people that
don't want to know anything about blocks not be confused by the
overloaded use of the term block or nor want to see all the blocks
goop.

llvm-svn: 66042

llvm-svn: 66041

If all else failed, find the message in class's root's
list of instacne methods!

llvm-svn: 66040

It is an error to call APInt::zext with a size that is equal to the value's
current size, so use zextOrTrunc instead.

llvm-svn: 66039

 - PR3698.

llvm-svn: 66038

llvm-svn: 66037

llvm-svn: 66036

people.  De-duplicates BLOCK_NEEDS_FREE and friends.

llvm-svn: 66035

people.  De-duplicates BLOCK_NEEDS_FREE and friends.

llvm-svn: 66034

Finish up some fixes related to <rdar://problem/6497631> Message lookup is sometimes different than gcc's.

- Disallow casting 'super'. GCC allows this, however it doesn't make sense (super isn't an expression and the cast won't alter lookup/dispatch).
- Tighten up lookup when messaging 'self'.

llvm-svn: 66033

llvm-svn: 66032

codegen, until such time as codegen is complete enough to turn on with
-fblocks.

llvm-svn: 66031

Add a restore folder, which shaves a dozen or so machineinstrs off oggenc.  Update a testcase to check this.

llvm-svn: 66029

 - Add Options.def file, collects option information.

 - Actual option instantiation is handled lazily by OptTable to allow
   the driver to not need to instantiate all options.

 - cast<> support for Option, other minor tweaks.

llvm-svn: 66028

llvm-svn: 66027

because less bytes are allocated and subobject construction is gone.
For reference how it works, see BasicBlock.h.
Btw. it is very assuring to see that somebody has invented
this ilist-embedded sentinel technique before me :-)

llvm-svn: 66026

preexpanded macro arguments from the preprocessor's bump pointer.
This reduces # mallocs from 12444 to 11792.

llvm-svn: 66025

llvm-svn: 66024

decls.  This reduces the number of calls to malloc on cocoa.h with pth and
-disable-free from 15958 to 12444 times (down ~3500).

llvm-svn: 66023

llvm-svn: 66022

llvm-svn: 66021

this, make DeclBase::Destroy destroy attributes instead of the DeclBase dtor.

llvm-svn: 66020

Linux.

llvm-svn: 66019

chosen sub-expression, rather than just evaluating the condition.

llvm-svn: 66018

This has two advantages 1) no more leaking them, 2) fewer calls to malloc.

This changes us from calling malloc 3685/1390/883/2974/1185 times respectively on
16/20/24/28/32 byte objects when parsing cocoa.h with pth and -disable-free to
calling it 2816/1020/702/2903/1168 times each respectively.

llvm-svn: 66017

llvm-svn: 66016

multiple sequential cases to a) not create tons of fall-through basic blocks
and b) not recurse deeply.  This fixes codegen on 100K deep cases, and improves
codegen on moderate cases from this:

        switch i32 %tmp, label %sw.epilog [
                i32 1000, label %sw.bb
                i32 1001, label %sw.bb1
                i32 1002, label %sw.bb2
                i32 1003, label %sw.bb3
                i32 1004, label %sw.bb4
...
sw.bb:          ; preds = %entry
        br label %sw.bb1

sw.bb1:         ; preds = %entry, %sw.bb
        br label %sw.bb2

sw.bb2:         ; preds = %entry, %sw.bb1
        br label %sw.bb3

sw.bb3:         ; preds = %entry, %sw.bb2
        br label %sw.bb4

to:

        switch i32 %tmp, label %sw.epilog [
                i32 1000, label %sw.bb
                i32 1001, label %sw.bb
                i32 1002, label %sw.bb
                i32 1003, label %sw.bb
                i32 1004, label %sw.bb
sw.bb:  ;; many preds

llvm-svn: 66015

llvm-svn: 66014

nested cases instead of recursive.

llvm-svn: 66013

booleans.

llvm-svn: 66012

multiple sequential case statements instead of doing it with recursion.  This
fixes a problem where we run out of stack space parsing 100K directly nested
cases.

There are a couple other problems that prevent this from being useful in 
practice (right now the example only parses correctly with -disable-free and
doesn't work with -emit-llvm), but this is a start.

I'm not including a testcase because it is large and uninteresting for 
regtesting.

Sebastian, I would appreciate it if you could scrutinize the smart pointer 
gymnastics I do.

llvm-svn: 66011

llvm-svn: 66010

first extend the integer to the correct width.

llvm-svn: 66009

llvm-svn: 66008

still give an unsupported error for them due to the fact this is a
work in progress.

llvm-svn: 66007

llvm-svn: 66006

Added the notion of a "boundable region", which is a region that can have a direct binding in the StoreManager.

llvm-svn: 66005