7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
Summary: add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test
Reviewed-by: kvn, twisti
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef CPU_X86_VM_STUBROUTINES_X86_64_HPP
#define CPU_X86_VM_STUBROUTINES_X86_64_HPP
// This file holds the platform specific parts of the StubRoutines
// definition. See stubRoutines.hpp for a description on how to
// extend it.
static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
enum platform_dependent_constants {
code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
};
class x86 {
friend class StubGenerator;
private:
static address _get_previous_fp_entry;
static address _get_previous_sp_entry;
static address _f2i_fixup;
static address _f2l_fixup;
static address _d2i_fixup;
static address _d2l_fixup;
static address _float_sign_mask;
static address _float_sign_flip;
static address _double_sign_mask;
static address _double_sign_flip;
static address _mxcsr_std;
public:
static address get_previous_fp_entry()
{
return _get_previous_fp_entry;
}
static address get_previous_sp_entry()
{
return _get_previous_sp_entry;
}
static address f2i_fixup()
{
return _f2i_fixup;
}
static address f2l_fixup()
{
return _f2l_fixup;
}
static address d2i_fixup()
{
return _d2i_fixup;
}
static address d2l_fixup()
{
return _d2l_fixup;
}
static address float_sign_mask()
{
return _float_sign_mask;
}
static address float_sign_flip()
{
return _float_sign_flip;
}
static address double_sign_mask()
{
return _double_sign_mask;
}
static address double_sign_flip()
{
return _double_sign_flip;
}
static address mxcsr_std()
{
return _mxcsr_std;
}
# include "stubRoutines_x86.hpp"
};
#endif // CPU_X86_VM_STUBROUTINES_X86_64_HPP