llvm-svn: 164021

[Sanitizer] Hoist functions to get/set stack size and re-exec from memory-sanitizer branch to sanitizer_common

llvm-svn: 164020

[ASan] increase sleep time if ASan finds two bugs simultaneously to make sure full error report is printed

llvm-svn: 164018

llvm-svn: 164017

llvm-svn: 164016

llvm-svn: 164015

llvm-svn: 164014

Remove a couple unused fields. Not detected by Wunused-private-field because of unimplemented copy constructor and copy assignment operator that make the class look incomplete. Upcoming patch will mark them deleted.

llvm-svn: 164013

llvm-svn: 164012

llvm-svn: 164011

llvm-svn: 164010

llvm-svn: 164009

llvm-svn: 164008

Use LLVM_DELETED_FUNCTION for copy constructors and copy assignment operators that aren't implemented.

llvm-svn: 164007

Use LLVM_DELETED_FUNCTION for copy constructors and copy assignment operators that aren't implemented.

llvm-svn: 164006

llvm-svn: 164005

llvm-svn: 164004

partition use lists a bit. No functionality changed.

These visitors are actually visiting a tuple of a Use and an offset into
the alloca. However, we use the InstVisitor to handle the dispatch over
the users, and so the Use and Offset are stored in class member
variables and set just before each call to visit(). This is fairly
awkward and makes the functions a bit harder to read, but its the only
real option we have until InstVisitor can be rewritten to use variadic
templates.

However, this pattern shouldn't be followed on the helper member
functions where there is no interface constraint from the visitor. We
already were passing the instruction as a normal parameter rather than
use the Use to get at it, start passing the offset as well. This will
become more important in subsequent patches as the offset will in some
cases change while visiting a single instruction.

llvm-svn: 164003

llvm-svn: 164002

llvm-svn: 164001

llvm-svn: 164000

llvm-svn: 163999

llvm-svn: 163997

llvm-svn: 163996

It had patterns for zext-loading and extending. This commit adds patterns for loading a wide type, performing a bitcast,
and extending. This is an odd pattern, but it is commonly used when writing code with intrinsics.

rdar://11897677

llvm-svn: 163995

llvm-svn: 163994

llvm-svn: 163993

llvm-svn: 163992

The live range of an SSA value forms a sub-tree of the dominator tree.
That means the live ranges of two values overlap if and only if the def
of one value lies within the live range of the other.

This can be used to simplify the interference checking a bit: Visit each
def in the two registers about to be joined. Check for interference
against the value that is live in the other register at the def point
only. It is not necessary to scan the set of overlapping live ranges,
this interference check can be done while computing the value mapping
required for the final live range join.

The new algorithm is prepared to handle more complicated conflict
resolution - We can allow overlapping live ranges with different values
as long as the differing lanes are undef or unused in the other
register.

The implementation in this patch doesn't do that yet, it creates code
that is nearly identical to the old algorithm's, except:

- The new stripCopies() function sees through multiple copies while
  the old RegistersDefinedFromSameValue() only can handle one.

- There are a few rare cases where the new algorithm can erase an
  IMPLICIT_DEF instuction that RegistersDefinedFromSameValue() couldn't
  handle.

llvm-svn: 163991

A value that is live in to a basic block should be returned by valueIn()
in LiveRangeQuery(getMBBStartIdx(MBB)), unless it is a PHI-def which
should be returned by valueDefined() instead.

Current code isn't using this functionality. Future code will.

llvm-svn: 163990

headers and modules in more detail. I'd still like to expand on some
of the modules-related issues further, but this is a decent start.

llvm-svn: 163989

llvm-svn: 163988

llvm-svn: 163987

declaration for the entity being documented.

llvm-svn: 163986

'function-like' type that can be annotated with \param.

Thanks to Eli Friedman for noticing!

llvm-svn: 163985

parameters.

llvm-svn: 163984

llvm-svn: 163983

llvm-svn: 163982

UnqualifiedId() properly noncopyable.

llvm-svn: 163981

llvm-svn: 163980