Needs testcase updates.

llvm-svn: 190000

llvm-svn: 189999

llvm-svn: 189998

llvm-svn: 189997

A quirk of AST representation leads to class template static data member
definitions being visited twice during Clang IRGen resulting in
duplicate (benign) initializers.

Discovered while investigating a possibly-related debug info bug tickled
by the duplicate emission of these members & their associated debug
info.

With thanks to Richard Smith for help investigating, understanding, and
helping with the fix.

llvm-svn: 189996

llvm-svn: 189995

llvm-svn: 189994

llvm-svn: 189993

llvm-svn: 189992

If the instruction window is < NumRegs/2, pressure tracking is not
likely to be effective. The scheduler has to process a very large
number of tiny blocks. We want this to be fast.

llvm-svn: 189991

llvm-svn: 189990

llvm-svn: 189989

llvm-svn: 189988

Register pressure tracking is half the complexity of the
scheduler. It's useful to be able to turn it off for compile time and
performance comparisons.

llvm-svn: 189987

'Force' values in registers using the calling convention. Now, we only depend on
the calling convention and that the allocator performs copy coalescing.

llvm-svn: 189985

llvm-svn: 189984

llvm-svn: 189983

I am about to patch this code, and this makes the diff far more readable.

llvm-svn: 189982

llvm-svn: 189981

llvm-svn: 189980

llvm-svn: 189979

llvm-svn: 189978

llvm-svn: 189977

* It was redundant with -flto.
* It was confusing since -uAnythingElse is a different option.
* GCC uses -fuse-linker-plugin, so it was not even a compatibility option.

llvm-svn: 189976

llvm-svn: 189975

llvm-svn: 189974

llvm-svn: 189973

These instructions, such as vmul.f32, require the second source operand to
be in D0-D15 rather than the full D0-D31. When optimizing, make sure to
account for that by constraining the register class of a replacement virtual
register to be compatible with the virtual register(s) it's replacing.

I've been unsuccessful in creating a non-fragile regression test. This issue
was detected by the LLVM nightly test suite running on an A15 (Bullet).

PR17093: http://llvm.org/bugs/show_bug.cgi?id=17093
llvm-svn: 189972

llvm-svn: 189971

llvm-svn: 189970

No functionality change.

llvm-svn: 189969

llvm-svn: 189968

llvm-svn: 189967

build of the clang-modernize unittest which is for some reason not being
built by default on my system (sorry about that).

llvm-svn: 189966

page size can be null terminated correctly by MemoryBuffer.

llvm-svn: 189965

Thanks to Jared Grubb for writing it and sharing it!

llvm-svn: 189964

;] Update them. Sorry for the breakage.

llvm-svn: 189963

llvm-svn: 189962

Unaligned vldm/vstm need more uops and therefore are slower in general on swift.

radar://14522102

llvm-svn: 189961

There is no reason to expect this tool to be limited to C++11, it seems
very likely to be of on-going interest. It seems likely to be useful for
modernizing even as new libraries come out in TSes and other formats
than a complete standard. Fundamentally, we need something a bit more
general. After some discussion on the list, going with
'clang-modernize'.

I've tried to do a reasonably comprehensive job of fixing up the names,
but I may still have missed some. Feel free to poke me if you spot any
fallout here. Things I've tried reasonably hard to find and fix:

- cpp11-migrate -> clang-modernize
- Migrator -> Modernizer
- Clean up the introductory documentation that was C++11 specific.

I'll also point out that this tool continues to delight me. =] Also,
a huge thanks to those who have so carefully, thoroughly documented the
tool. The docs here are simply phenomenal. Every tool should be this
well documented. I hope I have updated the documentation reasonably
well, but I'm not very good at documentation, so review much
appreciated.

llvm-svn: 189960