llvm-svn: 100703

llvm-svn: 100702

llvm-svn: 100700

explicitly split into stride-and-offset pairs. Also, add the
ability to track multiple post-increment loops on the same expression.

This refines the concept of "normalizing" SCEV expressions used for
to post-increment uses, and introduces a dedicated utility routine for
normalizing and denormalizing expressions.

This fixes the expansion of expressions which are post-increment users
of more than one loop at a time. More broadly, this takes LSR another
step closer to being able to reason about more than one loop at a time.

llvm-svn: 100699

llvm-svn: 100697

llvm-svn: 100696

Next to work on is ARMDisassemblerCore.cpp.

llvm-svn: 100695

argument that had to be between 0 and 7 to have any value,
firing an assert later in the AsmPrinter.  Now, the
disassembler rejects instructions with out-of-range values
for that immediate.

llvm-svn: 100694

llvm-svn: 100693

llvm-svn: 100692

llvm-svn: 100691

ARMDecoderEmitter.cpp, with FIXME comment.

llvm-svn: 100690

emitting diagnostics after it has produced that many errors.  Give this a
default value of 20 which produces plenty of errors for people to fix before
recompiling but not so many that their entire console scrolls away when the
compiler gets confused.  The experience looks like this:

$ clang foo.c
<tons of crap>
foo.c:102:3: error: unknown type name 'somethingbad'
  somethingbad x;
  ^
fatal error: too many errors emitted, stopping now
36 warnings and 20 errors generated.

llvm-svn: 100689

those who don't build all targets.

llvm-svn: 100688

llvm-svn: 100687

isn't any extra work to perform. Also, don't check for unused
parameters when the warnings will be suppressed anyway. Improves
performance of -fsyntax-only on 403.gcc's combine.c by ~2.5%. 
<rdar://problem/7836787>

llvm-svn: 100686

a simple mapping of register names to IDs to
identify register tokens.

llvm-svn: 100685

Right now the limit is 0 (aka disabled)

llvm-svn: 100684

llvm-svn: 100682

DBG_VALUE does not generate code.

llvm-svn: 100681

llvm-svn: 100677

or similar side-effects.

llvm-svn: 100676

of errors and warnings.  This allows us to emit something like this:

2 warnings and 1 error generated.

instead of:

3 diagnostics generated.

This also stops counting 'notes' because they are just follow-on information
about the previous diag, not a diagnostic in themselves.

llvm-svn: 100675

llvm-svn: 100674

It is not ready for public yet.

llvm-svn: 100673

llvm-svn: 100672

llvm-svn: 100671

llvm-svn: 100670

llvm-svn: 100669

llvm-svn: 100668

llvm-svn: 100667

llvm-svn: 100666

llvm-svn: 100665

llvm-svn: 100664

llvm-svn: 100663

llvm-svn: 100662

llvm-svn: 100661

llvm-svn: 100660

llvm-svn: 100659

llvm-svn: 100658