--- a/hotspot/src/share/vm/opto/type.cpp Mon Mar 09 13:34:00 2009 -0700
+++ b/hotspot/src/share/vm/opto/type.cpp Thu Mar 12 18:16:36 2009 -0700
@@ -226,6 +226,7 @@
TypeInt::CC_LE = TypeInt::make(-1, 0, WidenMin);
TypeInt::CC_GE = TypeInt::make( 0, 1, WidenMin); // == TypeInt::BOOL
TypeInt::BYTE = TypeInt::make(-128,127, WidenMin); // Bytes
+ TypeInt::UBYTE = TypeInt::make(0, 255, WidenMin); // Unsigned Bytes
TypeInt::CHAR = TypeInt::make(0,65535, WidenMin); // Java chars
TypeInt::SHORT = TypeInt::make(-32768,32767, WidenMin); // Java shorts
TypeInt::POS = TypeInt::make(0,max_jint, WidenMin); // Non-neg values
@@ -1022,6 +1023,7 @@
const TypeInt *TypeInt::CC_LE; // [-1,0]
const TypeInt *TypeInt::CC_GE; // [0,1] == BOOL (!)
const TypeInt *TypeInt::BYTE; // Bytes, -128 to 127
+const TypeInt *TypeInt::UBYTE; // Unsigned Bytes, 0 to 255
const TypeInt *TypeInt::CHAR; // Java chars, 0-65535
const TypeInt *TypeInt::SHORT; // Java shorts, -32768-32767
const TypeInt *TypeInt::POS; // Positive 32-bit integers or zero
@@ -2455,7 +2457,7 @@
// code and dereferenced at the time the nmethod is made. Until that time,
// it is not reasonable to do arithmetic with the addresses of oops (we don't
// have access to the addresses!). This does not seem to currently happen,
- // but this assertion here is to help prevent its occurrance.
+ // but this assertion here is to help prevent its occurence.
tty->print_cr("Found oop constant with non-zero offset");
ShouldNotReachHere();
}
@@ -2761,7 +2763,7 @@
// LCA is object_klass, but if we subclass from the top we can do better
if( above_centerline(_ptr) ) { // if( _ptr == TopPTR || _ptr == AnyNull )
// If 'this' (InstPtr) is above the centerline and it is Object class
- // then we can subclass in the Java class heirarchy.
+ // then we can subclass in the Java class hierarchy.
if (klass()->equals(ciEnv::current()->Object_klass())) {
// that is, tp's array type is a subtype of my klass
return TypeAryPtr::make(ptr, tp->ary(), tp->klass(), tp->klass_is_exact(), offset, instance_id);
@@ -3022,7 +3024,7 @@
//------------------------------xdual------------------------------------------
// Dual: do NOT dual on klasses. This means I do NOT understand the Java
-// inheritence mechanism.
+// inheritance mechanism.
const Type *TypeInstPtr::xdual() const {
return new TypeInstPtr( dual_ptr(), klass(), klass_is_exact(), const_oop(), dual_offset(), dual_instance_id() );
}
@@ -3176,7 +3178,7 @@
bool chg = false;
if (lo < min_lo) { lo = min_lo; chg = true; }
if (hi > max_hi) { hi = max_hi; chg = true; }
- // Negative length arrays will produce weird intermediate dead fath-path code
+ // Negative length arrays will produce weird intermediate dead fast-path code
if (lo > hi)
return TypeInt::ZERO;
if (!chg)
@@ -3358,7 +3360,7 @@
// LCA is object_klass, but if we subclass from the top we can do better
if (above_centerline(tp->ptr())) {
// If 'tp' is above the centerline and it is Object class
- // then we can subclass in the Java class heirarchy.
+ // then we can subclass in the Java class hierarchy.
if( tp->klass()->equals(ciEnv::current()->Object_klass()) ) {
// that is, my array type is a subtype of 'tp' klass
return make( ptr, _ary, _klass, _klass_is_exact, offset, instance_id );