the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!

llvm-svn: 132234

mode (only the "mov.w" variant). Now, when parsing "mov" in thumb mode,
default to the Thumb 1 versions/encodings.

llvm-svn: 132233

llvm-svn: 132232

Remove an unnecessary __import__() function call.

llvm-svn: 132231

llvm-svn: 132230

llvm-svn: 132229

llvm-svn: 132228

and enhancements in sub-project status updates.

llvm-svn: 132227

Add unnamed_addr to internal globals which are only used as an operand to memcpy. (Spotted by looking at IR.)

llvm-svn: 132226

was saying that the matching superregister class of GR32_NOREX in GR64_NOREX_NOSP
is GR64_NOREX, which drops the NOSP constraint. This fixes PR10032.

llvm-svn: 132225

subregisters:

When a value is in a subregister, at least report the location as being
the superregister. We should extend the .td files to encode the bit
range so that we can produce a DW_OP_bit_piece.

llvm-svn: 132224

Match llvm-gcc's string literals alignment by forcing alignment on string literals to 1.  This can significantly impact the size of the string data, and as far as I know, the alignment doesn't help performance.  rdar://9078969 .

llvm-svn: 132223

llvm-svn: 132222

llvm-svn: 132221

this. XFAIL'd, because the COFF AsmParser can't handle .section yet.

llvm-svn: 132220

llvm-svn: 132219

class type (or array thereof), eliminating some redundant checks
(thanks Eli!) and adding some tests where the behavior differs in
C++98/03 vs. C++0x.

llvm-svn: 132218

code in one place. Re-apply 131534 and fix the multi-step promotion of integers.

llvm-svn: 132217

llvm-svn: 132216

Attempt to preserve debug line info in LICM; as the comment in the code says, it's hard to pick good line numbers for this transformation, but something is better than nothing.

rdar://9143729

llvm-svn: 132215

llvm-svn: 132214

llvm-svn: 132213

llvm-svn: 132212

Don't use movw / movt for iOS static codegen for now to workaround some tools issues. rdar://9514789

llvm-svn: 132211

According to PR2536, the old spiller had trouble with the IMPLICIT_DEF in this
code:

  %reg1028<def> = MOV16rm %reg0, 1, %reg0, <ga:g_5>, Mem:LD(2,2) [g_5 + 0]
  %reg1039<def> = IMPLICIT_DEF
  %reg1038<def> = INSERT_SUBREG %reg1039, %reg1028, 2
  %reg1025<def> = AND32ri %reg1038, 65534, %%EFLAGS<imp-def>

However, today we emit a zero-extending load instead:

  %vreg10<def> = MOVZX32rm16 %noreg, 1, %noreg, <ga:@g_5>, %noreg; %mem:LD2[@g_5] GR32:%vreg10
  %vreg0<def> = AND32ri %vreg10, 65534, %%EFLAGS<imp-def,dead>; %GR32:%vreg0,%vreg10

This makes the test pointless since it no longer creates the spiller hazard.

llvm-svn: 132210

to be careful to emit landing pads that are always prepared to handle a
cleanup path.  This is correct mostly because of the fix to the LLVM
inliner, r132200.

llvm-svn: 132209

nontemplate in Sema::InstantiateTemplateDecl.

This should make the issue in PR10026 more visible, although it's not
going to fix it because something is violating this precondition.

llvm-svn: 132208

fixes aliasing issues with the old and new names as well as adds test
cases for the auto-upgrader.
Fixes rdar 9472944.

llvm-svn: 132207

Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form.

llvm-svn: 132206

suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.

llvm-svn: 132205

noexcept for <tuple>.  And in the process learned that I had done it wrong for pair's swap.  I needed to create an __is_nothrow_swappable<T>::value trait that was smart enought to answer false when __is_swappable<T>::value is false.  Otherwise one gets compile-time errors when using pair or tuple of non-swappable types, even if you never try to swap the pair or tuple.

llvm-svn: 132204

llvm-svn: 132203

llvm-svn: 132202

Don't sink or hoist debug info instrinsics; it isn't useful.  This also prevents LICM sinking from erasing debug intrinsics which don't dominate any exit block of the loop.

rdar://9143943 .

llvm-svn: 132201

  - the selector for the landing pad must provide all available information
    about the handlers, filters, and cleanups within that landing pad
  - calls to _Unwind_Resume must be converted to branches to the enclosing
    lpad so as to avoid re-entering the unwinder when the lpad claimed it
    was going to handle the exception in some way
This is quite specific to libUnwind-based unwinding.  In an effort to not
interfere too badly with other unwinders, and with existing hacks in frontends,
this only triggers on _Unwind_Resume (not _Unwind_Resume_or_Rethrow) and does
nothing with selectors if it cannot find a selector call for either lpad.

llvm-svn: 132200

The register allocators know to filter reserved registers from the allocation
orders, so we don't need all of this boilerplate.

llvm-svn: 132199

This fixes regressions reported by buildbots as a fallout of r132193.

llvm-svn: 132197

llvm-svn: 132196

llvm-svn: 132195

llvm-svn: 132194