JDK14/Java14源码在线阅读

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#ifndef CPU_SPARC_MACROASSEMBLER_SPARC_INLINE_HPP
#define CPU_SPARC_MACROASSEMBLER_SPARC_INLINE_HPP

#include "asm/assembler.inline.hpp"
#include "asm/macroAssembler.hpp"
#include "asm/codeBuffer.hpp"
#include "code/codeCache.hpp"

inline bool Address::is_simm13(int offset) { return Assembler::is_simm13(disp() + offset); }


inline int AddressLiteral::low10() const {
  return Assembler::low10(value());
}


inline void MacroAssembler::pd_patch_instruction(address branch, address target, const char* file, int line) {
  jint& stub_inst = *(jint*) branch;
  stub_inst = patched_branch(target - branch, stub_inst, 0);
}

// Use the right loads/stores for the platform
inline void MacroAssembler::ld_ptr( Register s1, Register s2, Register d ) {
  Assembler::ldx(s1, s2, d);
}

inline void MacroAssembler::ld_ptr( Register s1, int simm13a, Register d ) {
  Assembler::ldx(s1, simm13a, d);
}

#ifdef ASSERT
// ByteSize is only a class when ASSERT is defined, otherwise it's an int.
inline void MacroAssembler::ld_ptr( Register s1, ByteSize simm13a, Register d ) {
  ld_ptr(s1, in_bytes(simm13a), d);
}
#endif

inline void MacroAssembler::ld_ptr( Register s1, RegisterOrConstant s2, Register d ) {
  ldx(s1, s2, d);
}

inline void MacroAssembler::ld_ptr(const Address& a, Register d, int offset) {
  ldx(a, d, offset);
}

inline void MacroAssembler::st_ptr( Register d, Register s1, Register s2 ) {
  Assembler::stx(d, s1, s2);
}

inline void MacroAssembler::st_ptr( Register d, Register s1, int simm13a ) {
  Assembler::stx(d, s1, simm13a);
}

#ifdef ASSERT
// ByteSize is only a class when ASSERT is defined, otherwise it's an int.
inline void MacroAssembler::st_ptr( Register d, Register s1, ByteSize simm13a ) {
  st_ptr(d, s1, in_bytes(simm13a));
}
#endif

inline void MacroAssembler::st_ptr( Register d, Register s1, RegisterOrConstant s2 ) {
  stx(d, s1, s2);
}

inline void MacroAssembler::st_ptr(Register d, const Address& a, int offset) {
  stx(d, a, offset);
}

// Use the right loads/stores for the platform
inline void MacroAssembler::ld_long( Register s1, Register s2, Register d ) {
  Assembler::ldx(s1, s2, d);
}

inline void MacroAssembler::ld_long( Register s1, int simm13a, Register d ) {
  Assembler::ldx(s1, simm13a, d);
}

inline void MacroAssembler::ld_long( Register s1, RegisterOrConstant s2, Register d ) {
  ldx(s1, s2, d);
}

inline void MacroAssembler::ld_long(const Address& a, Register d, int offset) {
  ldx(a, d, offset);
}

inline void MacroAssembler::st_long( Register d, Register s1, Register s2 ) {
  Assembler::stx(d, s1, s2);
}

inline void MacroAssembler::st_long( Register d, Register s1, int simm13a ) {
  Assembler::stx(d, s1, simm13a);
}

inline void MacroAssembler::st_long( Register d, Register s1, RegisterOrConstant s2 ) {
  stx(d, s1, s2);
}

inline void MacroAssembler::st_long( Register d, const Address& a, int offset ) {
  stx(d, a, offset);
}

inline void MacroAssembler::stbool(Register d, const Address& a) { stb(d, a); }
inline void MacroAssembler::ldbool(const Address& a, Register d) { ldub(a, d); }
inline void MacroAssembler::movbool( bool boolconst, Register d) { mov( (int) boolconst, d); }


inline void MacroAssembler::signx( Register s, Register d ) { sra( s, G0, d); }
inline void MacroAssembler::signx( Register d )             { sra( d, G0, d); }

inline void MacroAssembler::not1( Register s, Register d ) { xnor( s, G0, d ); }
inline void MacroAssembler::not1( Register d )             { xnor( d, G0, d ); }

inline void MacroAssembler::neg( Register s, Register d ) { sub( G0, s, d ); }
inline void MacroAssembler::neg( Register d )             { sub( G0, d, d ); }

inline void MacroAssembler::cas(  Register s1, Register s2, Register d) { casa( s1, s2, d, ASI_PRIMARY); }
inline void MacroAssembler::casx( Register s1, Register s2, Register d) { casxa(s1, s2, d, ASI_PRIMARY); }

// Functions for isolating 64 bit atomic swaps for LP64
// cas_ptr will perform cas for 32 bit VM's and casx for 64 bit VM's
inline void MacroAssembler::cas_ptr(  Register s1, Register s2, Register d) {
  casx( s1, s2, d );
}

// Functions for isolating 64 bit shifts for LP64

inline void MacroAssembler::sll_ptr( Register s1, Register s2, Register d ) {
  Assembler::sllx(s1, s2, d);
}

inline void MacroAssembler::sll_ptr( Register s1, int imm6a,   Register d ) {
  Assembler::sllx(s1, imm6a, d);
}

inline void MacroAssembler::srl_ptr( Register s1, Register s2, Register d ) {
  Assembler::srlx(s1, s2, d);
}

inline void MacroAssembler::srl_ptr( Register s1, int imm6a,   Register d ) {
  Assembler::srlx(s1, imm6a, d);
}

inline void MacroAssembler::sll_ptr( Register s1, RegisterOrConstant s2, Register d ) {
  if (s2.is_register())  sll_ptr(s1, s2.as_register(), d);
  else                   sll_ptr(s1, s2.as_constant(), d);
}

inline void MacroAssembler::casl(  Register s1, Register s2, Register d) { casa( s1, s2, d, ASI_PRIMARY_LITTLE); }
inline void MacroAssembler::casxl( Register s1, Register s2, Register d) { casxa(s1, s2, d, ASI_PRIMARY_LITTLE); }

inline void MacroAssembler::inc(   Register d,  int const13 ) { add(   d, const13, d); }
inline void MacroAssembler::inccc( Register d,  int const13 ) { addcc( d, const13, d); }

inline void MacroAssembler::dec(   Register d,  int const13 ) { sub(   d, const13, d); }
inline void MacroAssembler::deccc( Register d,  int const13 ) { subcc( d, const13, d); }

// Use the right branch for the platform

inline void MacroAssembler::br( Condition c, bool a, Predict p, address d, relocInfo::relocType rt ) {
  Assembler::bp(c, a, icc, p, d, rt);
}

inline void MacroAssembler::br( Condition c, bool a, Predict p, Label& L ) {
  // See note[+] on 'avoid_pipeline_stall()', in "assembler_sparc.inline.hpp".
  avoid_pipeline_stall();
  br(c, a, p, target(L));
}


// Branch that tests either xcc or icc depending on the
// architecture compiled (LP64 or not)
inline void MacroAssembler::brx( Condition c, bool a, Predict p, address d, relocInfo::relocType rt ) {
    Assembler::bp(c, a, xcc, p, d, rt);
}

inline void MacroAssembler::brx( Condition c, bool a, Predict p, Label& L ) {
  avoid_pipeline_stall();
  brx(c, a, p, target(L));
}

inline void MacroAssembler::ba( Label& L ) {
  br(always, false, pt, L);
}

// Warning: V9 only functions
inline void MacroAssembler::bp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt ) {
  Assembler::bp(c, a, cc, p, d, rt);
}

inline void MacroAssembler::bp( Condition c, bool a, CC cc, Predict p, Label& L ) {
  Assembler::bp(c, a, cc, p, L);
}

inline void MacroAssembler::fb( Condition c, bool a, Predict p, address d, relocInfo::relocType rt ) {
  fbp(c, a, fcc0, p, d, rt);
}

inline void MacroAssembler::fb( Condition c, bool a, Predict p, Label& L ) {
  avoid_pipeline_stall();
  fb(c, a, p, target(L));
}

inline void MacroAssembler::fbp( Condition c, bool a, CC cc, Predict p, address d, relocInfo::relocType rt ) {
  Assembler::fbp(c, a, cc, p, d, rt);
}

inline void MacroAssembler::fbp( Condition c, bool a, CC cc, Predict p, Label& L ) {
  Assembler::fbp(c, a, cc, p, L);
}

inline void MacroAssembler::jmp( Register s1, Register s2 ) { jmpl( s1, s2, G0 ); }
inline void MacroAssembler::jmp( Register s1, int simm13a, RelocationHolder const& rspec ) { jmpl( s1, simm13a, G0, rspec); }

inline bool MacroAssembler::is_far_target(address d) {
  if (ForceUnreachable) {
    // References outside the code cache should be treated as far
    return d < CodeCache::low_bound() || d > CodeCache::high_bound();
  }
  return !is_in_wdisp30_range(d, CodeCache::low_bound()) || !is_in_wdisp30_range(d, CodeCache::high_bound());
}

// Call with a check to see if we need to deal with the added
// expense of relocation and if we overflow the displacement
// of the quick call instruction.
inline void MacroAssembler::call( address d, relocInfo::relocType rt ) {
  MacroAssembler::call(d, Relocation::spec_simple(rt));
}

inline void MacroAssembler::call( address d, RelocationHolder const& rspec ) {
  intptr_t disp;
  // NULL is ok because it will be relocated later.
  // Must change NULL to a reachable address in order to
  // pass asserts here and in wdisp.
  if ( d == NULL )
    d = pc();

  // Is this address within range of the call instruction?
  // If not, use the expensive instruction sequence
  if (is_far_target(d)) {
    relocate(rspec);
    AddressLiteral dest(d);
    jumpl_to(dest, O7, O7);
  } else {
    Assembler::call(d, rspec);
  }
}

inline void MacroAssembler::call( Label& L, relocInfo::relocType rt ) {
  avoid_pipeline_stall();
  MacroAssembler::call(target(L), rt);
}


inline void MacroAssembler::callr( Register s1, Register s2 ) { jmpl( s1, s2, O7 ); }
inline void MacroAssembler::callr( Register s1, int simm13a, RelocationHolder const& rspec ) { jmpl( s1, simm13a, O7, rspec); }

inline void MacroAssembler::tst( Register s ) { orcc( G0, s, G0 ); }

inline void MacroAssembler::ret( bool trace ) {
  if (trace) {
    mov(I7, O7); // traceable register
    JMP(O7, 2 * BytesPerInstWord);
  } else {
    jmpl( I7, 2 * BytesPerInstWord, G0 );
  }
}

inline void MacroAssembler::retl( bool trace ) {
  if (trace) {
    JMP(O7, 2 * BytesPerInstWord);
  } else {
    jmpl( O7, 2 * BytesPerInstWord, G0 );
  }
}


inline void MacroAssembler::cmp(  Register s1, Register s2 ) { subcc( s1, s2, G0 ); }
inline void MacroAssembler::cmp(  Register s1, int simm13a ) { subcc( s1, simm13a, G0 ); }

// Note:  All MacroAssembler::set_foo functions are defined out-of-line.


// Loads the current PC of the following instruction as an immediate value in
// 2 instructions.  All PCs in the CodeCache are within 2 Gig of each other.
inline intptr_t MacroAssembler::load_pc_address( Register reg, int bytes_to_skip ) {
  intptr_t thepc = (intptr_t)pc() + 2*BytesPerInstWord + bytes_to_skip;
  Unimplemented();
  return thepc;
}


inline void MacroAssembler::load_contents(const AddressLiteral& addrlit, Register d, int offset) {
  assert_not_delayed();
  if (ForceUnreachable) {
    patchable_sethi(addrlit, d);
  } else {
    sethi(addrlit, d);
  }
  ld(d, addrlit.low10() + offset, d);
}


inline void MacroAssembler::load_bool_contents(const AddressLiteral& addrlit, Register d, int offset) {
  assert_not_delayed();
  if (ForceUnreachable) {
    patchable_sethi(addrlit, d);
  } else {
    sethi(addrlit, d);
  }
  ldub(d, addrlit.low10() + offset, d);
}


inline void MacroAssembler::load_ptr_contents(const AddressLiteral& addrlit, Register d, int offset) {
  assert_not_delayed();
  if (ForceUnreachable) {
    patchable_sethi(addrlit, d);
  } else {
    sethi(addrlit, d);
  }
  ld_ptr(d, addrlit.low10() + offset, d);
}


inline void MacroAssembler::store_contents(Register s, const AddressLiteral& addrlit, Register temp, int offset) {
  assert_not_delayed();
  if (ForceUnreachable) {
    patchable_sethi(addrlit, temp);
  } else {
    sethi(addrlit, temp);
  }
  st(s, temp, addrlit.low10() + offset);
}


inline void MacroAssembler::store_ptr_contents(Register s, const AddressLiteral& addrlit, Register temp, int offset) {
  assert_not_delayed();
  if (ForceUnreachable) {
    patchable_sethi(addrlit, temp);
  } else {
    sethi(addrlit, temp);
  }
  st_ptr(s, temp, addrlit.low10() + offset);
}


// This code sequence is relocatable to any address, even on LP64.
inline void MacroAssembler::jumpl_to(const AddressLiteral& addrlit, Register temp, Register d, int offset) {
  assert_not_delayed();
  // Force fixed length sethi because NativeJump and NativeFarCall don't handle
  // variable length instruction streams.
  patchable_sethi(addrlit, temp);
  jmpl(temp, addrlit.low10() + offset, d);
}


inline void MacroAssembler::jump_to(const AddressLiteral& addrlit, Register temp, int offset) {
  jumpl_to(addrlit, temp, G0, offset);
}


inline void MacroAssembler::jump_indirect_to(Address& a, Register temp,
                                             int ld_offset, int jmp_offset) {
  assert_not_delayed();
  //sethi(al);                   // sethi is caller responsibility for this one
  ld_ptr(a, temp, ld_offset);
  jmp(temp, jmp_offset);
}


inline void MacroAssembler::set_metadata(Metadata* obj, Register d) {
  set_metadata(allocate_metadata_address(obj), d);
}

inline void MacroAssembler::set_metadata_constant(Metadata* obj, Register d) {
  set_metadata(constant_metadata_address(obj), d);
}

inline void MacroAssembler::set_metadata(const AddressLiteral& obj_addr, Register d) {
  assert(obj_addr.rspec().type() == relocInfo::metadata_type, "must be a metadata reloc");
  set(obj_addr, d);
}

inline void MacroAssembler::set_oop(jobject obj, Register d) {
  set_oop(allocate_oop_address(obj), d);
}


inline void MacroAssembler::set_oop_constant(jobject obj, Register d) {
  set_oop(constant_oop_address(obj), d);
}


inline void MacroAssembler::set_oop(const AddressLiteral& obj_addr, Register d) {
  assert(obj_addr.rspec().type() == relocInfo::oop_type, "must be an oop reloc");
  set(obj_addr, d);
}


inline void MacroAssembler::load_argument( Argument& a, Register  d ) {
  if (a.is_register())
    mov(a.as_register(), d);
  else
    ld (a.as_address(),  d);
}

inline void MacroAssembler::store_argument( Register s, Argument& a ) {
  if (a.is_register())
    mov(s, a.as_register());
  else
    st_ptr (s, a.as_address());         // ABI says everything is right justified.
}

inline void MacroAssembler::store_ptr_argument( Register s, Argument& a ) {
  if (a.is_register())
    mov(s, a.as_register());
  else
    st_ptr (s, a.as_address());
}


inline void MacroAssembler::store_float_argument( FloatRegister s, Argument& a ) {
  if (a.is_float_register())
// V9 ABI has F1, F3, F5 are used to pass instead of O0, O1, O2
    fmov(FloatRegisterImpl::S, s, a.as_float_register() );
  else
    // Floats are stored in the high half of the stack entry
    // The low half is undefined per the ABI.
    stf(FloatRegisterImpl::S, s, a.as_address(), sizeof(jfloat));
}

inline void MacroAssembler::store_double_argument( FloatRegister s, Argument& a ) {
  if (a.is_float_register())
// V9 ABI has D0, D2, D4 are used to pass instead of O0, O1, O2
    fmov(FloatRegisterImpl::D, s, a.as_double_register() );
  else
    stf(FloatRegisterImpl::D, s, a.as_address());
}

inline void MacroAssembler::store_long_argument( Register s, Argument& a ) {
  if (a.is_register())
    mov(s, a.as_register());
  else
    stx(s, a.as_address());
}

inline void MacroAssembler::round_to( Register r, int modulus ) {
  assert_not_delayed();
  inc( r, modulus - 1 );
  and3( r, -modulus, r );
}

inline void MacroAssembler::add(Register s1, int simm13a, Register d, relocInfo::relocType rtype) {
  relocate(rtype);
  add(s1, simm13a, d);
}
inline void MacroAssembler::add(Register s1, int simm13a, Register d, RelocationHolder const& rspec) {
  relocate(rspec);
  add(s1, simm13a, d);
}

// form effective addresses this way:
inline void MacroAssembler::add(const Address& a, Register d, int offset) {
  if (a.has_index())   add(a.base(), a.index(),         d);
  else               { add(a.base(), a.disp() + offset, d, a.rspec(offset)); offset = 0; }
  if (offset != 0)     add(d,        offset,            d);
}
inline void MacroAssembler::add(Register s1, RegisterOrConstant s2, Register d, int offset) {
  if (s2.is_register())  add(s1, s2.as_register(),          d);
  else                 { add(s1, s2.as_constant() + offset, d); offset = 0; }
  if (offset != 0)       add(d,  offset,                    d);
}

inline void MacroAssembler::andn(Register s1, RegisterOrConstant s2, Register d) {
  if (s2.is_register())  andn(s1, s2.as_register(), d);
  else                   andn(s1, s2.as_constant(), d);
}

inline void MacroAssembler::btst( Register s1,  Register s2 ) { andcc( s1, s2, G0 ); }
inline void MacroAssembler::btst( int simm13a,  Register s )  { andcc( s,  simm13a, G0 ); }

inline void MacroAssembler::bset( Register s1,  Register s2 ) { or3( s1, s2, s2 ); }
inline void MacroAssembler::bset( int simm13a,  Register s )  { or3( s,  simm13a, s ); }

inline void MacroAssembler::bclr( Register s1,  Register s2 ) { andn( s1, s2, s2 ); }
inline void MacroAssembler::bclr( int simm13a,  Register s )  { andn( s,  simm13a, s ); }

inline void MacroAssembler::btog( Register s1,  Register s2 ) { xor3( s1, s2, s2 ); }
inline void MacroAssembler::btog( int simm13a,  Register s )  { xor3( s,  simm13a, s ); }

inline void MacroAssembler::clr( Register d ) { or3( G0, G0, d ); }

inline void MacroAssembler::clrb( Register s1, Register s2) { stb( G0, s1, s2 ); }
inline void MacroAssembler::clrh( Register s1, Register s2) { sth( G0, s1, s2 ); }
inline void MacroAssembler::clr(  Register s1, Register s2) { stw( G0, s1, s2 ); }
inline void MacroAssembler::clrx( Register s1, Register s2) { stx( G0, s1, s2 ); }

inline void MacroAssembler::clrb( Register s1, int simm13a) { stb( G0, s1, simm13a); }
inline void MacroAssembler::clrh( Register s1, int simm13a) { sth( G0, s1, simm13a); }
inline void MacroAssembler::clr(  Register s1, int simm13a) { stw( G0, s1, simm13a); }
inline void MacroAssembler::clrx( Register s1, int simm13a) { stx( G0, s1, simm13a); }

inline void MacroAssembler::clruw( Register s, Register d ) { srl( s, G0, d); }
inline void MacroAssembler::clruwu( Register d ) { srl( d, G0, d); }

// Make all 32 bit loads signed so 64 bit registers maintain proper sign
inline void MacroAssembler::ld(  Register s1, Register s2, Register d)      { ldsw( s1, s2, d); }
inline void MacroAssembler::ld(  Register s1, int simm13a, Register d)      { ldsw( s1, simm13a, d); }

#ifdef ASSERT
  // ByteSize is only a class when ASSERT is defined, otherwise it's an int.
inline void MacroAssembler::ld(Register s1, ByteSize simm13a, Register d) { ldsw( s1, in_bytes(simm13a), d); }
#endif

inline void MacroAssembler::ld(  const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ld(  a.base(), a.index(),         d); }
  else               {                          ld(  a.base(), a.disp() + offset, d); }
}

inline void MacroAssembler::ldsb(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldsb(a.base(), a.index(),         d); }
  else               {                          ldsb(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::ldsh(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldsh(a.base(), a.index(),         d); }
  else               {                          ldsh(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::ldsw(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldsw(a.base(), a.index(),         d); }
  else               {                          ldsw(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::ldub(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldub(a.base(), a.index(),         d); }
  else               {                          ldub(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::lduh(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); lduh(a.base(), a.index(),         d); }
  else               {                          lduh(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::lduw(const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); lduw(a.base(), a.index(),         d); }
  else               {                          lduw(a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::ldd( const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldd( a.base(), a.index(),         d); }
  else               {                          ldd( a.base(), a.disp() + offset, d); }
}
inline void MacroAssembler::ldx( const Address& a, Register d, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); ldx( a.base(), a.index(),         d); }
  else               {                          ldx( a.base(), a.disp() + offset, d); }
}

inline void MacroAssembler::ldub(Register s1, RegisterOrConstant s2, Register d) { ldub(Address(s1, s2), d); }
inline void MacroAssembler::ldsb(Register s1, RegisterOrConstant s2, Register d) { ldsb(Address(s1, s2), d); }
inline void MacroAssembler::lduh(Register s1, RegisterOrConstant s2, Register d) { lduh(Address(s1, s2), d); }
inline void MacroAssembler::ldsh(Register s1, RegisterOrConstant s2, Register d) { ldsh(Address(s1, s2), d); }
inline void MacroAssembler::lduw(Register s1, RegisterOrConstant s2, Register d) { lduw(Address(s1, s2), d); }
inline void MacroAssembler::ldsw(Register s1, RegisterOrConstant s2, Register d) { ldsw(Address(s1, s2), d); }
inline void MacroAssembler::ldx( Register s1, RegisterOrConstant s2, Register d) { ldx( Address(s1, s2), d); }
inline void MacroAssembler::ld(  Register s1, RegisterOrConstant s2, Register d) { ld(  Address(s1, s2), d); }
inline void MacroAssembler::ldd( Register s1, RegisterOrConstant s2, Register d) { ldd( Address(s1, s2), d); }

inline void MacroAssembler::ldf(FloatRegisterImpl::Width w, Register s1, RegisterOrConstant s2, FloatRegister d) {
  if (s2.is_register())  ldf(w, s1, s2.as_register(), d);
  else                   ldf(w, s1, s2.as_constant(), d);
}

inline void MacroAssembler::ldf(FloatRegisterImpl::Width w, const Address& a, FloatRegister d, int offset) {
  relocate(a.rspec(offset));
  if (a.has_index()) {
    assert(offset == 0, "");
    ldf(w, a.base(), a.index(), d);
  } else {
    ldf(w, a.base(), a.disp() + offset, d);
  }
}

inline void MacroAssembler::lduwl(Register s1, Register s2, Register d) { lduwa(s1, s2, ASI_PRIMARY_LITTLE, d); }
inline void MacroAssembler::ldswl(Register s1, Register s2, Register d) { ldswa(s1, s2, ASI_PRIMARY_LITTLE, d);}
inline void MacroAssembler::ldxl( Register s1, Register s2, Register d) { ldxa(s1, s2, ASI_PRIMARY_LITTLE, d); }
inline void MacroAssembler::ldfl(FloatRegisterImpl::Width w, Register s1, Register s2, FloatRegister d) { ldfa(w, s1, s2, ASI_PRIMARY_LITTLE, d); }

// returns if membar generates anything, obviously this code should mirror
// membar below.
inline bool MacroAssembler::membar_has_effect( Membar_mask_bits const7a ) {
  const Membar_mask_bits effective_mask =
      Membar_mask_bits(const7a & ~(LoadLoad | LoadStore | StoreStore));
  return (effective_mask != 0);
}

inline void MacroAssembler::membar( Membar_mask_bits const7a ) {
  // Weakened for current Sparcs and TSO.  See the v9 manual, sections 8.4.3,
  // 8.4.4.3, a.31 and a.50.
  // Under TSO, setting bit 3, 2, or 0 is redundant, so the only value
  // of the mmask subfield of const7a that does anything that isn't done
  // implicitly is StoreLoad.
  const Membar_mask_bits effective_mask =
      Membar_mask_bits(const7a & ~(LoadLoad | LoadStore | StoreStore));
  if (effective_mask != 0) {
    Assembler::membar(effective_mask);
  }
}

inline void MacroAssembler::mov(Register s, Register d) {
  if (s != d) {
    or3(G0, s, d);
  } else {
    assert_not_delayed();  // Put something useful in the delay slot!
  }
}

inline void MacroAssembler::mov_or_nop(Register s, Register d) {
  if (s != d) {
    or3(G0, s, d);
  } else {
    nop();
  }
}

inline void MacroAssembler::mov( int simm13a, Register d) { or3( G0, simm13a, d); }

inline void MacroAssembler::prefetch(const Address& a, PrefetchFcn f, int offset) {
  relocate(a.rspec(offset));
  assert(!a.has_index(), "");
  prefetch(a.base(), a.disp() + offset, f);
}

inline void MacroAssembler::st(Register d, Register s1, Register s2)      { stw(d, s1, s2); }
inline void MacroAssembler::st(Register d, Register s1, int simm13a)      { stw(d, s1, simm13a); }

#ifdef ASSERT
// ByteSize is only a class when ASSERT is defined, otherwise it's an int.
inline void MacroAssembler::st(Register d, Register s1, ByteSize simm13a) { stw(d, s1, in_bytes(simm13a)); }
#endif

inline void MacroAssembler::st(Register d, const Address& a, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); st( d, a.base(), a.index()        ); }
  else               {                          st( d, a.base(), a.disp() + offset); }
}

inline void MacroAssembler::stb(Register d, const Address& a, int offset) {
  if (a.has_index()) { assert(offset == 0, ""); stb(d, a.base(), a.index()        ); }
  else               {                          stb(d, a.base(), a.disp() + offset); }
}

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