Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/opto/divnode.cpp	Fri Jan 08 09:42:31 2010 -0800
     1.2 +++ b/src/share/vm/opto/divnode.cpp	Fri Jan 08 09:51:24 2010 -0800
     1.3 @@ -114,7 +114,8 @@
     1.4        if( andconi_t && andconi_t->is_con() ) {
     1.5          jint andconi = andconi_t->get_con();
     1.6          if( andconi < 0 && is_power_of_2(-andconi) && (-andconi) >= d ) {
     1.7 -          dividend = dividend->in(1);
     1.8 +          if( (-andconi) == d ) // Remove AND if it clears bits which will be shifted
     1.9 +            dividend = dividend->in(1);
    1.10            needs_rounding = false;
    1.11          }
    1.12        }
    1.13 @@ -356,7 +357,8 @@
    1.14        if( andconl_t && andconl_t->is_con() ) {
    1.15          jlong andconl = andconl_t->get_con();
    1.16          if( andconl < 0 && is_power_of_2_long(-andconl) && (-andconl) >= d ) {
    1.17 -          dividend = dividend->in(1);
    1.18 +          if( (-andconl) == d ) // Remove AND if it clears bits which will be shifted
    1.19 +            dividend = dividend->in(1);
    1.20            needs_rounding = false;
    1.21          }
    1.22        }