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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)

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Code in vtableStubs and templateTable moved into MacroAssembler.

Reviewed-by: kvn
This commit is contained in:
John R Rose 2009-03-06 21:36:50 -08:00
parent 07321dec65
commit 26d192003f
10 changed files with 408 additions and 291 deletions
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28
hotspot/src/cpu/sparc/vm/assembler_sparc.hpp
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@ -1859,6 +1859,7 @@ class MacroAssembler: public Assembler {
// Functions for isolating 64 bit shifts for LP64
inline void sll_ptr( Register s1, Register s2, Register d );
inline void sll_ptr( Register s1, int imm6a, Register d );
inline void sll_ptr( Register s1, RegisterConstant s2, Register d );
inline void srl_ptr( Register s1, Register s2, Register d );
inline void srl_ptr( Register s1, int imm6a, Register d );
@ -1986,6 +1987,25 @@ class MacroAssembler: public Assembler {
void load_sized_value(Register s1, RegisterConstant s2, Register d,
int size_in_bytes, bool is_signed);
// Helpers for address formation.
// They update the dest in place, whether it is a register or constant.
// They emit no code at all if src is a constant zero.
// If dest is a constant and src is a register, the temp argument
// is required, and becomes the result.
// If dest is a register and src is a non-simm13 constant,
// the temp argument is required, and is used to materialize the constant.
void regcon_inc_ptr( RegisterConstant& dest, RegisterConstant src,
Register temp = noreg );
void regcon_sll_ptr( RegisterConstant& dest, RegisterConstant src,
Register temp = noreg );
RegisterConstant ensure_rs2(RegisterConstant rs2, Register sethi_temp) {
guarantee(sethi_temp != noreg, "constant offset overflow");
if (is_simm13(rs2.constant_or_zero()))
return rs2; // register or short constant
set(rs2.as_constant(), sethi_temp);
return sethi_temp;
}
// --------------------------------------------------
public:
@ -2299,6 +2319,14 @@ class MacroAssembler: public Assembler {
);
void tlab_refill(Label& retry_tlab, Label& try_eden, Label& slow_case);
// interface method calling
void lookup_interface_method(Register recv_klass,
Register intf_klass,
RegisterConstant itable_index,
Register method_result,
Register temp_reg, Register temp2_reg,
Label& no_such_interface);
// Stack overflow checking
// Note: this clobbers G3_scratch