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6893268: additional dynamic language related optimizations in C2

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C2 needs some additional optimizations to be able to handle MethodHandle invokes and invokedynamic instructions at the best performance.

Reviewed-by: kvn, never
This commit is contained in:
Christian Thalinger 2010-01-05 15:21:25 +01:00
parent 375527d84e
commit 47f2433a58
52 changed files with 1781 additions and 342 deletions
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14
hotspot/src/share/vm/classfile/vmSymbols.cpp
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@ -299,6 +299,20 @@ vmIntrinsics::ID vmIntrinsics::for_unboxing(BasicType type) {
return wrapper_intrinsic(type, true);
}
vmIntrinsics::ID vmIntrinsics::for_raw_conversion(BasicType src, BasicType dest) {
#define SRC_DEST(s,d) (((int)(s) << 4) + (int)(d))
switch (SRC_DEST(src, dest)) {
case SRC_DEST(T_INT, T_FLOAT): return vmIntrinsics::_intBitsToFloat;
case SRC_DEST(T_FLOAT, T_INT): return vmIntrinsics::_floatToRawIntBits;
case SRC_DEST(T_LONG, T_DOUBLE): return vmIntrinsics::_longBitsToDouble;
case SRC_DEST(T_DOUBLE, T_LONG): return vmIntrinsics::_doubleToRawLongBits;
}
#undef SRC_DEST
return vmIntrinsics::_none;
}
methodOop vmIntrinsics::method_for(vmIntrinsics::ID id) {
if (id == _none) return NULL;
symbolOop cname = vmSymbols::symbol_at(class_for(id));