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4809552: Optimize Arrays.fill(...)

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2010-08-27 17:33:49 -07:00
parent 519c627fe5
commit 08d9e03b81
17 changed files with 940 additions and 11 deletions
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17
hotspot/src/share/vm/runtime/stubRoutines.hpp
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@ -148,6 +148,13 @@ class StubRoutines: AllStatic {
static address _unsafe_arraycopy;
static address _generic_arraycopy;
static address _jbyte_fill;
static address _jshort_fill;
static address _jint_fill;
static address _arrayof_jbyte_fill;
static address _arrayof_jshort_fill;
static address _arrayof_jint_fill;
// These are versions of the java.lang.Math methods which perform
// the same operations as the intrinsic version. They are used for
// constant folding in the compiler to ensure equivalence. If the
@ -259,6 +266,16 @@ class StubRoutines: AllStatic {
static address unsafe_arraycopy() { return _unsafe_arraycopy; }
static address generic_arraycopy() { return _generic_arraycopy; }
static address jbyte_fill() { return _jbyte_fill; }
static address jshort_fill() { return _jshort_fill; }
static address jint_fill() { return _jint_fill; }
static address arrayof_jbyte_fill() { return _arrayof_jbyte_fill; }
static address arrayof_jshort_fill() { return _arrayof_jshort_fill; }
static address arrayof_jint_fill() { return _arrayof_jint_fill; }
static address select_fill_function(BasicType t, bool aligned, const char* &name);
static double intrinsic_log(double d) {
assert(_intrinsic_log != NULL, "must be defined");
return _intrinsic_log(d);