2011/6/20 Richard Guenther <richard.guent...@gmail.com>: > On Mon, Jun 20, 2011 at 12:23 PM, Kai Tietz <ktiet...@googlemail.com> wrote: >> Hello, >> >> this patch adds to fold_binary_loc some missing optimization for binary >> and operations on truth-not expressions. >> Added cases are: >> (!X & X) is always zero. >> (X & !X) is always zero. >> (X == 0) & X is always zero. >> X & (X == 0) is always zero. >> !X & 1 is X == 0 >> >> ChangeLog >> >> 2011-06-20 Kai Tietz <kti...@redhat.com> >> >> * fold-const.c (fold_binary_loc): Add missing >> folding for truth-not operations in combination >> with binary and. >> >> ChangeLog >> >> 2011-06-20 Kai Tietz <kti...@redhat.com> >> >> * gcc.dg/binop-notand1.c: New test. >> * gcc.dg/binop-notand2.c: New test. >> * gcc.dg/binop-notand3.c: New test. >> * gcc.dg/binop-notand4.c: New test. >> * gcc.dg/binop-notand5.c: New test. >> * gcc.dg/binop-notand6.c: New test. >> >> Boostrapped and tested for x86_64-pc-linux-gnu. Ok for apply? > > Ok. > > Thanks, > Richard. > >> Regards, >> Kai
Applied at revision 175206 to trunk. Thanks, Kai
