llvm-svn: 92863

llvm-svn: 92862

llvm-svn: 92858

linkage of vtables. Before this, we were emitting RTTI names for
template instantiations with strong external linkage rather than with
weak ODR linkage.

llvm-svn: 92857

continuation classes and its original declaration
is imported from a protocol. This fixes radar 7509234.

llvm-svn: 92856

Fix marking of virtual members for nested classes whose first non-pure virtual function has a body inlined in the class

llvm-svn: 92855

it work for any integer size return type.

llvm-svn: 92853

llvm-svn: 92850

(OP (trunc x), (trunc y)) -> (trunc (OP x, y))

Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.

This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.

llvm-svn: 92849

llvm-svn: 92846

llvm-svn: 92841

result for a nested class whose first non-pure virtual member function
has an inline body. Previously, we were checking for the key function
before we had seen the (delayed) inline body. 

llvm-svn: 92839

llvm-svn: 92838

llvm-svn: 92837

phi nodes when deciding which pointers point to local memory.
I actually checked long ago how useful this is, and it isn't
very: it hardly ever fires in the testsuite, but since Chris
wants it here it is!

llvm-svn: 92836

as parts of overload sets.  Also, refer to constructors as 'constructors'
rather than functions.

Adjust a lot of tests.

llvm-svn: 92832

llvm-svn: 92831

llvm-svn: 92830

memcpy, memset and other intrinsics that only access their arguments
to be readnone if the intrinsic's arguments all point to local memory.
This improves the testcase in the README to readonly, but it could in
theory be made readnone, however this would involve more sophisticated
analysis that looks through the memcpy.

llvm-svn: 92829

llvm-svn: 92828

llvm-svn: 92827

it on for darwin (it fails on linux).

llvm-svn: 92826

llvm-svn: 92825

llvm-svn: 92824

for -Wsign-compare and -Wconversion, and use that coordinated logic to drive
both diagnostics.  The new logic works more transparently with implicit
conversions, conditional operators, etc., as well as bringing -Wconversion's
ability to deal with pseudo-closed operations (e.g. arithmetic on shorts) to
-Wsign-compare.

Fixes PRs 5887, 5937, 5938, and 5939.

llvm-svn: 92823

Revert my available_externally vtables experiment. It's breaking the LLVM-with-Clang build with linker errors that I have yet to investigate.

llvm-svn: 92822

deterministic and work properly with templates. Once a class that
needs a vtable has been defined, we now do one if two things:

  - If the class has no key function, we place the class on a list of
    classes whose virtual functions will need to be "marked" at the
    end of the translation unit. The delay until the end of the
    translation unit is needed because we might see template
    specializations of these virtual functions.
  - If the class has a key function, we do nothing; when the key
    function is defined, the class will be placed on the
    aforementioned list.

At the end of the translation unit, we "mark" all of the virtual
functions of the classes on the list as used, possibly causing
template instantiation and other classes to be added to the
list. This gets LLVM's lib/Support/CommandLine.cpp compiling again.

llvm-svn: 92821

llvm-svn: 92820

llvm-svn: 92819

bootstrap.

llvm-svn: 92818

synonyms for PPC.

llvm-svn: 92817

llvm-svn: 92816

Previously, instcombine would only promote an expression tree to
the larger type if doing so eliminated two casts.  This is because
a need to manually do the sign extend after the promoted expression
tree with two shifts.  Now, we keep track of whether the result of
the computation is going to be properly sign extended already.  If
so, we can unconditionally promote the expression, which allows us
to zap more sext's.

This implements rdar://6598839 (aka gcc pr38751)

llvm-svn: 92815

An instruction like this:

  %reg1097:1<def> = VMOVSR %R3<kill>, 14, %reg0

Must be replaced with this when substituting physical registers:

  %S0<def> = VMOVSR %R3<kill>, 14, %reg0, %D0<imp-def>

llvm-svn: 92812

llvm-svn: 92810

Per offline discussion with Doug, don't perform typo correction when we have encountered a fatal error.  On some files that are woefully wrong (missing headers) this can cause a 3x slowdown in some cases when parsing the file.  It makes sense not to perform typo correction in this case because after a fatal error diagnostics will either be suppressed or not really make any sense.

llvm-svn: 92809

for a 'readonly' property. Fixes radar 7427072.

llvm-svn: 92808

llvm-svn: 92807

bottom-up scheduler. We prefer the lower order number.

llvm-svn: 92806

try to evaluate an expression as a constant boolean condition.  This has
the same intended semantics as used in folding conditional operators.

llvm-svn: 92805