llvm-svn: 122073

Reapply r121905 (automatic synthesis of @llvm.sadd.with.overflow) with a fix for a bug that manifested itself
on the DragonEgg self-host bot.  Unfortunately, the testcase is pretty messy and doesn't reduce well due to
interactions with other parts of InstCombine.

llvm-svn: 122072

in order to sort the output by address.

llvm-svn: 122071

llvm-svn: 122070

llvm-svn: 122067

llvm-svn: 122066

llvm-svn: 122065

llvm-svn: 122064

the AST, so that we visit them in source order. Fixes <rdar://problem/8779113>.

llvm-svn: 122062

llvm-svn: 122061

Removed darwin specific CPU type defines to make UnwindAssemblyProfiler_x86 able to compile on linux (patch from Stephen Wilson).

llvm-svn: 122060

llvm-svn: 122059

llvm-svn: 122058

llvm-svn: 122057

llvm-svn: 122056

llvm-svn: 122054

llvm-svn: 122053

Patch (slightly modified) by Visa Putkinen.

llvm-svn: 122052

llvm-svn: 122051

llvm-svn: 122050

checker that are automatically handled now
by the Cocoa conventions logic.

llvm-svn: 122047

when the selector is the string 'mutable'.

llvm-svn: 122046

comparisons formed by comparisons.  For example,
this:

void foo(unsigned x) {
  if (x == 0 || x == 1 || x == 3 || x == 4 || x == 6) 
    bar();
}

compiles into:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$6, %edi
	ja	LBB0_2
## BB#1:                                ## %entry
	movl	%edi, %eax
	movl	$91, %ecx
	btq	%rax, %rcx
	jb	LBB0_3

instead of:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$2, %edi
	jb	LBB0_4
## BB#1:                                ## %switch.early.test
	cmpl	$6, %edi
	ja	LBB0_3
## BB#2:                                ## %switch.early.test
	movl	%edi, %eax
	movl	$88, %ecx
	btq	%rax, %rcx
	jb	LBB0_4

This catches a bunch of cases in GCC, which look like this:

 %804 = load i32* @which_alternative, align 4, !tbaa !0
 %805 = icmp ult i32 %804, 2
 %806 = icmp eq i32 %804, 3
 %or.cond121 = or i1 %805, %806
 %807 = icmp eq i32 %804, 4
 %or.cond124 = or i1 %or.cond121, %807
 br i1 %or.cond124, label %.thread, label %808

turning this into a range comparison.

llvm-svn: 122045

llvm-svn: 122044

IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--

llvm-svn: 122043

IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

llvm-svn: 122042

llvm-svn: 122041

to libAnalysis.  Similar to Format (format string checking), 
CocoaConventions has the
potential to serve clients other than the
static analyzer.

llvm-svn: 122040

 - Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
 - Since Darwin 'as' would typically reject things that using this will allow,
   we don't need to worry about compatibility.

llvm-svn: 122038

 - Currently just has stub implementations for Mach-O, ELF, and COFF.

llvm-svn: 122037

only indicates the create rule if it starts
at the beginning of the method name, not
within the method name.

llvm-svn: 122036

to start with lowercase characters.  No
functionality change.

llvm-svn: 122035

This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.

llvm-svn: 122034

way to do this, but it fixes rdar://problem/8778973

llvm-svn: 122033

-- and remove FIXME asking for the same!

llvm-svn: 122032

assembler.

llvm-svn: 122031

llvm-svn: 122030

line commands can use the current thread/frame.

Fixed an issue with expressions that get sandboxed in an objective C method
where unichar wasn't being passed down.

Added a "static size_t Scalar::GetMaxByteSize();" function in case we need
to know the max supported by size of something within a Scalar object.

llvm-svn: 122027

llvm-svn: 122026

superceded and was effectively dead.

llvm-svn: 122024