llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-14 16:33:28 +00:00

History

Owen Anderson 26c5663283 Invert and-of-or into or-of-and when doing so would allow us to clear bits of the and's mask.

This can result in increased opportunities for store narrowing in code generation.  Update a number of
tests for this change.  This fixes <rdar://problem/8285027>.

Additionally, because this inverts the order of ors and ands, some patterns for optimizing or-of-and-of-or
no longer fire in instances where they did originally.  Add a simple transform which recaptures most of these
opportunities: if we have an or-of-constant-or and have failed to fold away the inner or, commute the order 
of the two ors, to give the non-constant or a chance for simplification instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113679 91177308-0d34-0410-b5e6-96231b3b80d8

2010-09-11 05:48:06 +00:00

Analysis

Teach InstructionSimplify to fold (A & B) & A -> A & B and (A | B) | A -> A | B.

2010-09-10 22:39:55 +00:00

Archive

CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.

2010-09-10 21:14:25 +00:00

AsmParser

CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.

2010-09-10 21:14:25 +00:00

Bitcode

CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.