llvm-svn: 161492

Committing it first as it makes the "real" patch a lot easier to read.

llvm-svn: 161491

llvm-svn: 161489

Patch by kai@redstar.de !

llvm-svn: 161487

llvm-svn: 161485

llvm-svn: 161483

Contributed by Brad Smith <brad@comstyle.com>

llvm-svn: 161481

llvm-svn: 161479

llvm-svn: 161478

There are situations where inline ASM may want to change the section -- for
instance, to create a variable in the .data section. However, it cannot do this
without (potentially) restoring to the wrong section. E.g.:

  asm volatile (".section __DATA, __data\n\t"
                ".globl _fnord\n\t"
                "_fnord: .quad 1f\n\t"
                ".text\n\t"
                "1:" :::);

This may be wrong if this is inlined into a function that has a "section"
attribute. The user should use `.pushsection' and `.popsection' here instead.

The addition of `.previous' is added for completeness.
<rdar://problem/12048387>

llvm-svn: 161477

A conditional operator between glvalues of types cv1 T and cv2 T produces a
glvalue if the expressions are of the same value kind and one of cv1 and cv2
is a subset of the other.

A conditional operator between two null pointer constants is permitted if one
of them is of type std::nullptr_t.

llvm-svn: 161476

clarify that the advantages of the BSD license apply to when you incorporate clang into proprietary code bases,
patch by Jonathan Sauer.

llvm-svn: 161475

Fixes a crash (<rdar://problem/11067144>), and generally seems to improve
recovery in other cases.

llvm-svn: 161474

member of reference type in an anonymous struct.  PR13154.

llvm-svn: 161473

llvm-svn: 161472

This replaces an existing subtarget hook on ARM and allows standard
CodeGen passes to potentially use the property.

llvm-svn: 161471

llvm-svn: 161470

llvm-svn: 161469

sure we account for that correctly in DeadStoreElimination.  Fixes a regression
from r158919.  PR13547.

llvm-svn: 161468

<rdar://problem/11975483> Removing user-visible references to 'dict' as a parameter name for Python summary-generating functions since it is a Python keyword.

llvm-svn: 161467

for people used to the GDB command.

<rdar://problem/12052072>

llvm-svn: 161466

Added the ability to set the architecture from two numbers that represent the mach-o CPU type and subtype in the format "%u-%u" or "%u.%u". This can of course be followed by vendor and OS.

llvm-svn: 161465

llvm-svn: 161464

It caused an assertion failure when compiling consumer-typeset.

llvm-svn: 161463

We perform the following:
1> Use SUB instead of CMP for i8,i16,i32 and i64 in ISel lowering.
2> Modify MachineCSE to correctly handle implicit defs.
3> Convert SUB back to CMP if possible at peephole.

Removed pattern matching of (a>b) ? (a-b):0 and like, since they are handled
by peephole now.

rdar://11873276

llvm-svn: 161462

We can't rematerialize a PIC base after register allocation anyway, and
scanning physreg use-def chains is very expensive in a function with
many calls.

<rdar://problem/12047515>

llvm-svn: 161461

The getSumForBlock function was quadratic in the number of successors
because getSuccWeight would perform a linear search for an already known
iterator.

llvm-svn: 161460

multiple scalar promotions on a single loop. This also has the effect of
preserving the order of stores sunk out of loops, which is aesthetically
pleasing, and it happens to fix the testcase in PR13542, though it doesn't
fix the underlying problem.

llvm-svn: 161459

memory models, except when arc is accessing a weak
ivar (which is an error). // rdar://6505197

llvm-svn: 161458

llvm-svn: 161455

llvm-svn: 161454

This adds support for TargetIndex operands during isel. The meaning of
these (index, offset, flags) operands is entirely defined by the target.

llvm-svn: 161453

An unsigned value converted to floating-point will always be greater than
a negative constant.  Unfortunately InstCombine reversed the check so that
unsigned values were being optimized to always be greater than all positive
floating-point constants.  <rdar://problem/12029145>

llvm-svn: 161452

do so when the high bits are known zero. This caused a subtle miscompilation.

rdar://12027825 

llvm-svn: 161451

and the other is a glvalue of class type, don't forget to copy-initialize a
temporary when performing the lvalue-to-rvalue conversion on the glvalue.
Strangely, DefaultLvalueConversions misses this part of the lvalue-to-rvalue
conversions.

llvm-svn: 161450

for side-effects. Instead, check for side-effects after performing
initialization. Doing so also removes some strange corner cases and differences
between in-class initialization and constructor initialization.

llvm-svn: 161449

objc_release for performance for these most often
called APIs. // rdar://12040837

llvm-svn: 161448

implementation was changed to a union of bitfields.

llvm-svn: 161447

character arrays. This is in line with what GCC does.
<rdar://problem/10529227>

llvm-svn: 161446

llvm-svn: 161445