Calling RemoveOperand is very expensive on huge PHI instructions. This makes
early tail duplication run twice as fast on the Firefox JavaScript
interpreter.

llvm-svn: 95832

This makes early tail duplication run 60 times faster when compiling the Firefox
JavaScript interpreter, see PR6186.

llvm-svn: 95831

llvm-svn: 95828

llvm-svn: 95827

with some of the recent changes that have gone into llvm-mc.

llvm-svn: 95826

multiple global variables at a time.

llvm-svn: 95825

lowering and requires that certain types exist in ValueTypes.h.  Modified widening to
check if an op can trap and if so, the widening algorithm will apply only the op on
the defined elements.  It is safer to do this in widening because the optimizer can't
guarantee removing unused ops in some cases.

llvm-svn: 95823

llvm-svn: 95819

llvm-svn: 95818

legalization even when the IR-level optimizer has removed dead phis, such
as when the high half of an i64 value is unused on a 32-bit target.
I had to adjust a few test cases that had dead phis.
This is a partial fix for Radar 7627077.

llvm-svn: 95816

llvm-svn: 95814

the pointer values could be invalid.

llvm-svn: 95813

changed its behavior.  Oops.

llvm-svn: 95811

llvm-svn: 95810

code with lots of bitfields.

llvm-svn: 95809

llvm-svn: 95808

llvm-svn: 95807

x86_32-encoding.s in on expectation of it passing.

llvm-svn: 95806

llvm-svn: 95804

etc.)

llvm-svn: 95803

llvm-svn: 95802

llvm-svn: 95801

The "uses=" comments are just clutter in this context.

llvm-svn: 95799

to be printed, in place of the familiar "uses=" comments.

llvm-svn: 95798

llvm-svn: 95797

different word was intended.

llvm-svn: 95795

containing the subset of the full auto generated test case that currently
encodes correctly.  Again it is useful as we bring up the the new encoder
to make sure currently working stuff stays working.

llvm-svn: 95791

llvm-svn: 95784

llvm-svn: 95781

llvm-svn: 95780

llvm-svn: 95779

 - Pretty messy, but we need to rework how we handle tied operands in MCInst
   anyway.

llvm-svn: 95774

displacement values.

llvm-svn: 95773

throughout the X86 encoder.

llvm-svn: 95771

even for the immediate case.  No functionality change.

llvm-svn: 95770

pointer type.

llvm-svn: 95769

restriction in BitVector for |= and ^= that the operand must be the
same length.

llvm-svn: 95768

MCInst it came from.

llvm-svn: 95767

llvm-svn: 95766

llvm-svn: 95765