hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.

llvm-svn: 73793

llvm-svn: 73792

llvm-svn: 73791

gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.

llvm-svn: 73790

which it isn't prepared to handle.

llvm-svn: 73787

llvm-svn: 73786

llvm-svn: 73784

llvm-svn: 73783

work in progress.

llvm-svn: 73782

llvm-svn: 73781

Patch by Иван Сорокин.

llvm-svn: 73779

llvm-svn: 73778

llvm-svn: 73777

expressions, when interesting.

llvm-svn: 73776

llvm-svn: 73775

expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.

llvm-svn: 73774

llvm-svn: 73773

Patch by Benjamin Kramer.

llvm-svn: 73772

preferring to use their replacements in GRState. This further unifies the code
paths for such logic and leads to some code reduction.

llvm-svn: 73771

Nicolas, this is probably the cause of the failures you were seeing.

llvm-svn: 73770

as if they were multiple uses of the same instruction.  This interacts
well with the existing loadpre that j-t does to open up many new jump
threads earlier.

llvm-svn: 73768

llvm-svn: 73767

llvm-svn: 73766

place it with -pedantic.  Remove -Wunused since it
is implied by -Wall.  Group -Wno-unused-parameter
with -Wall -W since it is the combination of these
two that turns on -Wunused-parameter.

llvm-svn: 73765

llvm-svn: 73762

llvm-svn: 73761

handle with an SSE2 instruction.

llvm-svn: 73760

llvm-svn: 73759

llvm-svn: 73758

taking so long to get to this!

llvm-svn: 73757

because the type of the symbol is used to create the default range. We need the
sign to be consistent.

llvm-svn: 73756

llvm-svn: 73755

ElementRegion.

llvm-svn: 73754

Patch by Benedict Gaster.

llvm-svn: 73753

when it allows forming a tail call.  Patch by Frits van
Bommel.  This implements PR4323.

llvm-svn: 73752

strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!

llvm-svn: 73751

llvm-svn: 73750

llvm-svn: 73749

llvm-svn: 73748

Latency information for ARM v6. It's rough and not yet hooked up. Right now  we are only using branch latency to determine if-conversion limits.

llvm-svn: 73747