etc. No functionality changed.

llvm-svn: 150867

Fix a rather nasty regression from r150690: LHS != RHS does not imply LHS->stripPointerCasts() != RHS->stripPointerCasts().

llvm-svn: 150863

llvm-svn: 150860

llvm-svn: 150852

llvm-svn: 150851

llvm-svn: 150848

llvm-svn: 150842

llvm-svn: 150841

llvm-svn: 150840

llvm-svn: 150836

llvm-svn: 150833

to why this is needed.  This broke the darwin's otool(1) program.  This change
was made in r144385.

llvm-svn: 150832

Calls always clobber CPSR.

llvm-svn: 150831

MRI keeps track of which physregs have been used. Make sure it gets
updated with all the regmask-clobbered registers.

Delete the closePhysRegsUsed() function which isn't necessary.

llvm-svn: 150830

metadata may still unwind, but only in ways that the ARC
optimizer doesn't need to consider. This permits more
aggressive optimization.

llvm-svn: 150829

any changes.

Internally this adds a private inner class HMEditor, to LiveIntervals. HMEditor provides
an API for updating live intervals when code is moved or bundled.

llvm-svn: 150826

actually work, at least as described. LLVM Metadata is not
intended to suppress LLVM IR rules, as it can be stripped at
any time.

llvm-svn: 150821

llvm-svn: 150820

Generate the correct EH frame section types on Solaris, this time without breaking other platforms...

llvm-svn: 150819

llvm-svn: 150818

This caused miscompilations on out-of-tree targets, and possibly i386 as
well.

I'll find some other way of hoisting %rip-relative loads from loops
containing calls.

llvm-svn: 150816

llvm-svn: 150815

Don't lazily allocate eh_frame.  We're not lazily allocating things like the LSDA, which are only used when the eh frame is used, so this lazy allocation doesn't really make sense.

Fix the type of eh_frame on Solaris so that Sun ld doesn't fail to combine them (thus making it impossible for the unwind library to find them and breaking exceptions).

llvm-svn: 150814

... and it's probably best to use the correct alignment, rather than just guessing that it's the same as the size.

llvm-svn: 150813

It turns out that putting an 8-byte symbol in a 4-byte section makes Solaris ld sulk.  GNU ld is perfectly happy with it, which is worrying for a whole other set of reasons...

Thanks to Anton, Duncan and Rafael for helping me track this down.
Pointy hat to Rafael for introducing the bug in the first place.

llvm-svn: 150811

llvm-svn: 150809

llvm-svn: 150805

llvm-svn: 150796

llvm-svn: 150795

useful to represent a variable that is const in the source but can't be constant
in the IR because of a non-trivial constructor. If globalopt evaluates the
constructor, and there was an invariant.start with no matching invariant.end
possible, it will mark the global constant afterwards.

llvm-svn: 150794

instructions to be emitted.

llvm-svn: 150782

llvm-svn: 150780

llvm-svn: 150779

llvm-svn: 150778

llvm-svn: 150775

entend flag.

llvm-svn: 150774

llvm-svn: 150773

llvm-svn: 150771

Re-enable 150652 and 150654 - Make FPSCR non-reserved, and make MachineCSE bail on reserved registers. This *should* be safe as of r150786.

llvm-svn: 150769

llvm-svn: 150768