On Sat, Apr 21, 2012 at 4:26 AM, Andrew Pinski <pins...@gmail.com> wrote: > Hi, > I noticed a missed simple optimization on the tree level where the > and expression could be commoned out. > This patch implements the optimization in tree-ssa-forwprop.c. I > thought it would be good to get it in even before my tree combiner > work gets in (which I am still working on but recently ran into a git > merging issue which I am still trying to resolve). > > OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
Ok. Thanks, Richard. > ChangeLog: > * tree-ssa-forwprop.c (simplify_bitwise_binary): Simplify (A & B) OP0 > (C & B) to (A OP0) & B. > > testsuite/ChangeLog: > * gcc.dg/tree-ssa/forwprop-17.c: New testcase.
