It can happen that a live debug variable is the last use of a sub-register, and
the register allocator will pick a larger register class for the virtual
register.  If the allocated register doesn't support the sub-register index,
just use %noreg for the debug variables instead of asserting.

In PR9872, a debug variable ends up in the sub_8bit_hi part of a GR32_ABCD
register. The register is split and one part is inflated to GR32 and assigned
%ESI because there are no more normal uses of sub_8bit_hi.

Since %ESI doesn't have that sub-register, substPhysReg asserted. Now it will
simply insert a %noreg instead, and the debug variable will be marked
unavailable in that range.

We don't currently have a way of saying: !"value" is in bits 8-15 of %ESI, I
don't know if DWARF even supports that.

llvm-svn: 131073

llvm-svn: 131072

"b + ((a < b) ? 1 : 0)" compiles into
	cmpl	%esi, %edi
	adcl	$0, %esi
instead of
	cmpl	%esi, %edi
	sbbl	%eax, %eax
	andl	$1, %eax
	addl	%esi, %eax

This saves a register, a false dependency on %eax
(Intel's CPUs still don't ignore it) and it's shorter.

llvm-svn: 131070

of a universal binary and 'rax' register is available when launching the x86_64 slice.

rdar://problem/9403437

llvm-svn: 131069

complete destructors for abstract classes unless the destructor is virtual
and thus needs to be in the vtable.

llvm-svn: 131068

the smaller encoding and this cuts 270336 bytes from a release version of
clang and 1246272 bytes from a debug build.

llvm-svn: 131067

llvm-svn: 131066

bit by allowing __weak and __strong to be added/dropped as part of
implicit conversions (qualification conversions in C++). A little
history: GCC lets one add/remove/change GC qualifiers just about
anywhere, implicitly. Clang did roughly the same before, but we
recently normalized the semantics of qualifiers across the board to
get a semantics that we could reason about (yay). Unfortunately, this
tightened the screws a bit too much for GC qualifiers, where it's
common to add/remove these qualifiers at will.

Overall, we're still in better shape than we were before: we don't
permit directly changing the GC qualifier (e.g., __weak -> __strong),
so type safety is improved. More importantly, we're internally
consistent in our handling of qualifiers, and the logic that allows
adding/removing GC qualifiers (but not adding/removing address
spaces!) only touches two obvious places.

Fixes <rdar://problem/9402499>.

llvm-svn: 131065

a new "QLaunchArch:<arch-name>" where <arch-name> is the architecture name.
This allows us to remotely launch a debugserver and then set the architecture
for the binary we will launch.

llvm-svn: 131064

they are treated as pointers of type (void*).  This
allows reading of environ, for instance.

llvm-svn: 131063

compiling Operator.h with gcc 4.6 in C++0x mode.

llvm-svn: 131062

function and if not return an error.

llvm-svn: 131061

type, so long as it is known to have a constant initializer and the
class type is a POD class. Fixes <rdar://problem/9306265>.

llvm-svn: 131060

Tablegen will invent its own names for these indexes, and the register file is a
bit simpler.

llvm-svn: 131059

The RegisterInfo.td file should only specify the indexes that sources need to
refer to. The rest is inferred.

llvm-svn: 131058

llvm-svn: 131057

llvm-svn: 131055

llvm-svn: 131054

Don't fail at parsing __declspec(property(get=get_func_name)). Just skip everything inside property() for now while we wait for the BoostPro people to provide a complete patch.

llvm-svn: 131053

bad assumptions about the alignment of the double* argument.

llvm-svn: 131052

http://msdn.microsoft.com/en-us/library/hzc8ytsz(v=VS.100).aspx

Microsoft doc claims this is a C++/CLI feature but it is really always enabled.
This removes 2 error when parsing MFC code with clang.

llvm-svn: 131051

llvm-svn: 131050

often expressed as "x >= y ? x : y", there is a good chance we can extract
the existing "x >= y" from it and use that as a replacement for "max(x,y)==x".

llvm-svn: 131049

Patch by Stephen Hines.

llvm-svn: 131045

Please ensure the build is clean and tests are passing when recommitting.

llvm-svn: 131044

Patch for PR 7409 - only error on definition of invalid typedefs.  Suppress errors for additional uses of this invalid typedef.

llvm-svn: 131043

variables be evaluated statically.

Also fixed a bug that caused the results of
statically-evaluated expressions to be materialized
improperly.

This bug also removes some duplicate code.

llvm-svn: 131042

llvm-svn: 131041

llvm-svn: 131039

llvm-svn: 131038

DeclContext's lookup table when they aren't in any identifier namespace.

llvm-svn: 131037

any names that aren't in the appropriate identifier namespaces. Fixes
an embarrassing bug where we give a redefinition error due to an
Objective-C category (<rdar://problem/9388207>).

llvm-svn: 131036

llvm-svn: 131035

implementation.

llvm-svn: 131034

llvm-svn: 131033

non-bitfield following a bitfield if size of their types differ.

llvm-svn: 131032

llvm-svn: 131031

Forgot to `svn rm` these in revisions 131025 / 131029.

llvm-svn: 131030

From revision 131025.

llvm-svn: 131029

2. Remove unused function.
3. Correct indentation.

llvm-svn: 131028