llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-24 08:33:39 +00:00

History

Evan Cheng 89bb7b5640 Some dag combiner goodness:

Transform br (xor (x, y)) -> br (x != y)
Transform br (xor (xor (x,y), 1)) -> br (x == y)
Also normalize (and (X, 1) == / != 1 -> (and (X, 1)) != / == 0 to match to "test on x86" and "tst on arm"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96556 91177308-0d34-0410-b5e6-96231b3b80d8

2010-02-18 02:13:50 +00:00

Analysis

Fix SCEVExpander's existing PHI reuse checking to recognize the

2010-02-17 02:39:31 +00:00