llvm-svn: 120048

llvm-svn: 120047

llvm-svn: 120046

llvm-svn: 120045

in two places that are really interested in simplified instructions, not
constants.

llvm-svn: 120044

llvm-svn: 120043

(which does constant folding and more) is called a few lines
later.

llvm-svn: 120042

llvm-svn: 120041

llvm-svn: 120040

llvm-svn: 120039

llvm-svn: 120038

method in FileSystemStatCache.

llvm-svn: 120037

llvm-svn: 120036

llvm-svn: 120035

We need to check if the individual vector elements are sign/zero-extended
values.  For now this only handles constants values.  Radar 8687140.

llvm-svn: 120034

llvm-svn: 120033

MemoryBuffer::getFile, causing us to pick up a fstat for
every file.  Restore the optimization.

llvm-svn: 120032

the result code of the stat to/from the PCH file since it is always 0.

llvm-svn: 120031

its own header and giving it some more structure.  No 
functionality change.

llvm-svn: 120030

llvm-svn: 120029

This allows to transform the rem in "1 << ((int)x % 8);" to an and.

llvm-svn: 120028

llvm-svn: 120027

Stylistic improvement suggested by Frits van Bommel.

llvm-svn: 120026

llvm-svn: 120025

fairly systematic way in instcombine.  Some of these cases were already dealt
with, in which case I removed the existing code.  The case of Add has a bunch of
funky logic which covers some of this plus a few variants (considers shifts to be
a form of multiplication), which I didn't touch.  The simplification performed is:
A*B+A*C -> A*(B+C).  The improvement is to do this in cases that were not already
handled [such as A*B-A*C -> A*(B-C), which was reported on the mailing list], and
also to do it more often by not checking for "only one use" if "B+C" simplifies.

llvm-svn: 120024

shifts.

llvm-svn: 120022

llvm-svn: 120017

llvm-svn: 120016

are constant.  There was in fact one exception to this (phi nodes) - so
remove that exception (InstructionSimplify handles this so there should
be no loss).

llvm-svn: 120015

on 64-bit systems.

llvm-svn: 120014

two copies, since they are fundamentally different
operations and the StringRef one should go away
(it shouldn't be part of FileManager at least).

Remove some dead arguments.

llvm-svn: 120013

client should just pass in absolute paths.

llvm-svn: 120012

this code. no functionality change.

llvm-svn: 120011

FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on FileManager without creating one in some code paths
in cindextext.

llvm-svn: 120010

While here, remove unused argument and rename UpdateForSlide to Invalidate.

llvm-svn: 120009

llvm-svn: 120008

to simplify a bunch of code in it.  It should ultimately get inlined
into FileManager.

llvm-svn: 120007

llvm-svn: 120006

llvm-svn: 120005

llvm-svn: 120004