llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-07 14:33:15 +00:00

History

Duncan Sands 88c3df7afb Have GVN simplify instructions as it goes. For example, consider

"%z = %x and %y".  If GVN can prove that %y equals %x, then it turns
this into "%z = %x and %x".  With the new code, %z will be replaced
with %x everywhere (and then deleted).  Previously %z would be value
numbered too, which is a waste of time.  Also, while a clever value
numbering algorithm would give %z the same value number as %x, our
current one doesn't do so (at least I don't think it does).  The new
logic has an essentially equivalent effect to what you would get if
%z was given the same value number as %x, i.e. it should make value
numbering smarter.  While there, get hold of target data once at the
start rather than a gazillion times all over the place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118923 91177308-0d34-0410-b5e6-96231b3b80d8

2010-11-12 21:10:24 +00:00

Hello

Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.

2010-10-07 00:31:16 +00:00

InstCombine

When checking that the necessary bits are zero in

2010-11-10 01:30:56 +00:00

Instrumentation

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

IPO

Add helper functions for computing the Location of load, store,