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// or visit www.oracle.com if you need additional information or have any
// questions.
//
//
- source_hpp %{
+ source %{
#include "gc/shenandoah/shenandoahBarrierSet.hpp"
- #include "gc/shenandoah/shenandoahBarrierSetAssembler.hpp"
+ #include "gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp"
%}
- encode %{
- enc_class aarch64_enc_cmpxchg_oop_shenandoah(memory mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, iRegINoSp res) %{
- guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ false, /*release*/ true, /*is_cae*/ false, $res$$Register);
- %}
+ // ---------------------------------- LOADS ---------------------------------------
+ //
- enc_class aarch64_enc_cmpxchg_acq_oop_shenandoah(memory mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, iRegINoSp res) %{
- guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ true, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ instruct load_P_Normal_shenandoah(iRegPNoSp dst, memory8 mem, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set dst (LoadP mem));
+ predicate(UseShenandoahGC && !needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP_DEF dst, TEMP tmp, KILL cr);
+ // The main load is a candidate to implement implicit null checks.
+ ins_is_late_expanded_null_check_candidate(opnd_array(1)->opcode() == INDOFFL8);
+ format %{ "ldr $dst, $mem\t# ptr" %}
+ ins_encode %{
+ Address addr = mem2address($mem->opcode(), as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
+ if (addr.getMode() == Address::base_plus_offset) {
+ addr = __ legitimize_address(addr, /* size_in_memory */ 8, $tmp$$Register);
+ }
+ ShenandoahBarrierSet::assembler()->load_c2(this, masm,
+ $dst$$Register,
+ addr,
+ /* narrow = */ false,
+ /* acquire = */ false);
%}
+ ins_cost(3*INSN_COST);
+ ins_pipe(pipe_class_memory);
%}
- instruct compareAndSwapP_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
-
- match(Set res (ShenandoahCompareAndSwapP mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
-
- effect(TEMP tmp, KILL cr);
-
- format %{
- "cmpxchg_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ instruct load_P_Volatile_shenandoah(iRegPNoSp dst, indirect mem, rFlagsReg cr)
+ %{
+ match(Set dst (LoadP mem));
+ predicate(UseShenandoahGC && needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP_DEF dst, KILL cr);
+ // The main load is a candidate to implement implicit null checks.
+ ins_is_late_expanded_null_check_candidate(true);
+ format %{ "ldar $dst, $mem\t# ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->load_c2(this, masm,
+ $dst$$Register,
+ Address($mem$$Register),
+ /* narrow = */ false,
+ /* acquire = */ true);
%}
+ ins_cost(3*INSN_COST);
+ ins_pipe(pipe_class_memory);
+ %}
- ins_encode(aarch64_enc_cmpxchg_oop_shenandoah(mem, oldval, newval, tmp, res));
+ instruct load_N_Normal_shenandoah(iRegNNoSp dst, memory4 mem, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set dst (LoadN mem));
+ predicate(UseShenandoahGC && !needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP_DEF dst, TEMP tmp, KILL cr);
+ // The main load is a candidate to implement implicit null checks.
+ ins_is_late_expanded_null_check_candidate(opnd_array(1)->opcode() == INDOFFL4);
+ format %{ "ldrw $dst, $mem\t# ptr" %}
+ ins_encode %{
+ Address addr = mem2address($mem->opcode(), as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
+ if (addr.getMode() == Address::base_plus_offset) {
+ addr = __ legitimize_address(addr, /* size_in_memory */ 4, $tmp$$Register);
+ }
+ ShenandoahBarrierSet::assembler()->load_c2(this, masm,
+ $dst$$Register,
+ addr,
+ /* narrow = */ true,
+ /* acquire = */ false);
+ %}
+ ins_cost(3*INSN_COST);
+ ins_pipe(pipe_class_memory);
+ %}
- ins_pipe(pipe_slow);
+ instruct load_N_Volatile_shenandoah(iRegNNoSp dst, indirect mem, rFlagsReg cr)
+ %{
+ match(Set dst (LoadN mem));
+ predicate(UseShenandoahGC && needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP_DEF dst, KILL cr);
+ // The main load is a candidate to implement implicit null checks.
+ ins_is_late_expanded_null_check_candidate(true);
+ format %{ "ldarw $dst, $mem\t# ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->load_c2(this, masm,
+ $dst$$Register,
+ Address($mem$$Register),
+ /* narrow = */ true,
+ /* acquire = */ true);
+ %}
+ ins_cost(VOLATILE_REF_COST);
+ ins_pipe(pipe_class_memory);
%}
- instruct compareAndSwapN_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahCompareAndSwapN mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
+ // ---------------------------------- STORES ---------------------------------------
+ //
+ instruct store_P_Normal_shenandoah(memory8 mem, iRegP src, iRegPNoSp tmp1, iRegPNoSp tmp2, rFlagsReg cr)
+ %{
+ match(Set mem (StoreP mem src));
+ predicate(UseShenandoahGC && !needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp1, TEMP tmp2, KILL cr);
+ format %{ "str $src, $mem" %}
+ ins_encode %{
+ Address addr = mem2address($mem->opcode(), as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
+ if (addr.getMode() == Address::base_plus_offset) {
+ addr = __ legitimize_address(addr, /* size_in_memory */ 8, $tmp2$$Register);
+ }
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ addr, /* dst_narrow = */ false,
+ $src$$Register, /* src_narrow = */ false,
+ $tmp1$$Register, /* is_volatile = */ false);
+ %}
+ ins_cost(3*INSN_COST);
+ ins_pipe(pipe_class_memory);
+ %}
+
+ instruct store_P_Volatile_shenandoah(indirect mem, iRegP src, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set mem (StoreP mem src));
+ predicate(UseShenandoahGC && needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
effect(TEMP tmp, KILL cr);
+ format %{ "stlr $src, $mem" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ Address($mem$$Register), /* dst_narrow = */ false,
+ $src$$Register, /* src_narrow = */ false,
+ $tmp$$Register, /* is_volatile = */ true);
+ %}
+ ins_cost(VOLATILE_REF_COST);
+ ins_pipe(pipe_class_memory);
+ %}
- format %{
- "cmpxchgw_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ instruct store_N_Normal_shenandoah(memory4 mem, iRegN src, iRegPNoSp tmp1, iRegPNoSp tmp2, rFlagsReg cr)
+ %{
+ match(Set mem (StoreN mem src));
+ predicate(UseShenandoahGC && !needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp1, TEMP tmp2, KILL cr);
+ format %{ "strw $src, $mem" %}
+ ins_encode %{
+ Address addr = mem2address($mem->opcode(), as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
+ if (addr.getMode() == Address::base_plus_offset) {
+ addr = __ legitimize_address(addr, /* size_in_memory */ 4, $tmp2$$Register);
+ }
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ addr, /* dst_narrow = */ true,
+ $src$$Register, /* src_narrow = */ true,
+ $tmp1$$Register, /* is_volatile = */ false);
%}
+ ins_cost(3*INSN_COST);
+ ins_pipe(pipe_class_memory);
+ %}
+ instruct store_N_Volatile_shenandoah(indirect mem, iRegN src, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set mem (StoreN mem src));
+ predicate(UseShenandoahGC && needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp, KILL cr);
+ format %{ "stlrw $src, $mem" %}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register, /*acquire*/ false, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ Address($mem$$Register), /* dst_narrow = */ true,
+ $src$$Register, /* src_narrow = */ true,
+ $tmp$$Register, /* is_volatile = */ true);
%}
+ ins_cost(VOLATILE_REF_COST);
+ ins_pipe(pipe_class_memory);
+ %}
- ins_pipe(pipe_slow);
+ instruct encodePAndStoreN_Normal_shenandoah(memory4 mem, iRegP src, iRegPNoSp tmp1, iRegPNoSp tmp2, rFlagsReg cr)
+ %{
+ match(Set mem (StoreN mem (EncodeP src)));
+ predicate(UseShenandoahGC && !needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp1, TEMP tmp2, KILL cr);
+ format %{ "encode_heap_oop tmp, $src\n\t"
+ "str tmp, $mem\t# compressed ptr" %}
+ ins_encode %{
+ Address addr = mem2address($mem->opcode(), as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
+ if (addr.getMode() == Address::base_plus_offset) {
+ addr = __ legitimize_address(addr, /* size_in_memory */ 4, $tmp2$$Register);
+ }
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ addr, /* dst_narrow = */ true,
+ $src$$Register, /* src_narrow = */ false,
+ $tmp1$$Register, /* is_volatile = */ false);
+ %}
+ ins_cost(4*INSN_COST);
+ ins_pipe(pipe_class_memory);
%}
- instruct compareAndSwapPAcq_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ instruct encodePAndStoreN_Volatile_shenandoah(indirect mem, iRegP src, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set mem (StoreN mem (EncodeP src)));
+ predicate(UseShenandoahGC && needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp, KILL cr);
+ format %{ "encode_heap_oop tmp, $src\n\t"
+ "stlrw tmp, $mem\t# compressed ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->store_c2(this, masm,
+ Address($mem$$Register), /* dst_narrow = */ true,
+ $src$$Register, /* src_narrow = */ false,
+ $tmp$$Register, /* is_volatile = */ true);
+ %}
+ ins_cost(4*INSN_COST);
+ ins_pipe(pipe_class_memory);
+ %}
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndSwapP mem (Binary oldval newval)));
- ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ // ---------------------- LOAD-STORES -----------------------------------
+ //
+ instruct compareAndSwap_P_shenandoah(iRegINoSp res, indirect mem, iRegPNoSp oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_acq_shenandoah_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "cmpxchg_P_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
-
- ins_encode(aarch64_enc_cmpxchg_acq_oop_shenandoah(mem, oldval, newval, tmp, res));
-
+ ins_encode %{
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ false,
+ /* weak = */ false,
+ /* acquire = */ false);
+ %}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct compareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
-
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndSwapN mem (Binary oldval newval)));
+ instruct compareAndSwap_P_A_shenandoah(iRegINoSp res, indirect mem, iRegPNoSp oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
+ format %{
+ "cmpxchg_acq_shenandoah_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
+ %}
+ ins_encode %{
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ false,
+ /* weak = */ false,
+ /* acquire = */ true);
+ %}
ins_cost(VOLATILE_REF_COST);
+ ins_pipe(pipe_slow);
+ %}
- effect(TEMP tmp, KILL cr);
-
- format %{
- "cmpxchgw_acq_shenandoah_narrow_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
- %}
-
+ instruct compareAndSwap_N_shenandoah(iRegINoSp res, indirect mem, iRegNNoSp oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
+ format %{
+ "cmpxchg_N_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
+ %}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register, /*acquire*/ true, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ true,
+ /* weak = */ false,
+ /* acquire = */ false);
%}
+ ins_cost(VOLATILE_REF_COST);
+ ins_pipe(pipe_slow);
+ %}
+ instruct compareAndSwap_N_A_shenandoah(iRegINoSp res, indirect mem, iRegNNoSp oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
+ format %{
+ "cmpxchgw_acq_shenandoah_narrow_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
+ %}
+ ins_encode %{
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ true,
+ /* weak = */ false,
+ /* acquire = */ true);
+ %}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct compareAndExchangeN_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahCompareAndExchangeN mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
+ instruct compareAndExchange_N_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndExchangeN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_shenandoah $res = $mem, $oldval, $newval\t# (narrow oop, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchgw_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ false, /*release*/ true, /*is_cae*/ true, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ true,
+ /* narrow = */ true,
+ /* weak = */ false,
+ /* acquire = */ false);
%}
+ ins_cost(2*VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct compareAndExchangeP_shenandoah(iRegPNoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahCompareAndExchangeP mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
+ instruct compareAndExchange_N_A_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndExchangeN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "cmpxchgw_acq_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ false, /*release*/ true, /*is_cae*/ true, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ true,
+ /* narrow = */ true,
+ /* weak = */ false,
+ /* acquire = */ true);
%}
+ ins_cost(2*VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct compareAndExchangeNAcq_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndExchangeN mem (Binary oldval newval)));
- ins_cost(VOLATILE_REF_COST);
+ instruct compareAndExchange_P_shenandoah(iRegPNoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndExchangeP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_acq_shenandoah $res = $mem, $oldval, $newval\t# (narrow oop, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchg_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ true, /*release*/ true, /*is_cae*/ true, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ true,
+ /* narrow = */ false,
+ /* weak = */ false,
+ /* acquire = */ false);
%}
+ ins_cost(2*VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct compareAndExchangePAcq_shenandoah(iRegPNoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndExchangeP mem (Binary oldval newval)));
- ins_cost(VOLATILE_REF_COST);
+ instruct compareAndExchange_P_A_shenandoah(iRegPNoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (CompareAndExchangeP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_acq_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "cmpxchg_acq_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ true, /*release*/ true, /*is_cae*/ true, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ true,
+ /* narrow = */ false,
+ /* weak = */ false,
+ /* acquire = */ true);
%}
+ ins_cost(2*VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapN_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahWeakCompareAndSwapN mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ instruct weakCompareAndSwap_N_shenandoah(iRegINoSp res, indirect mem, iRegNNoSp oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (WeakCompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_shenandoah $res = $mem, $oldval, $newval\t# (narrow oop, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchgw_shenandoah $res = $mem, $oldval, $newval\t# (N, weak) if $mem == $oldval then $mem <-- $newval\n\t"
"csetw $res, EQ\t# $res <-- (EQ ? 1 : 0)"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- // Weak is not currently supported by ShenandoahBarrierSet::cmpxchg_oop
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ false, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ true,
+ /* weak = */ true,
+ /* acquire = */ false);
%}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapP_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahWeakCompareAndSwapP mem (Binary oldval newval)));
- ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ instruct weakCompareAndSwap_N_A_shenandoah(iRegINoSp res, indirect mem, iRegNNoSp oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (WeakCompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_shenandoah $res = $mem, $oldval, $newval\t# (ptr, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchgw_acq_shenandoah $res = $mem, $oldval, $newval\t# (N, weak) if $mem == $oldval then $mem <-- $newval\n\t"
+ "csetw $res, EQ\t# $res <-- (EQ ? 1 : 0)"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- // Weak is not currently supported by ShenandoahBarrierSet::cmpxchg_oop
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ false, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ true,
+ /* weak = */ true,
+ /* acquire = */ true);
%}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahWeakCompareAndSwapN mem (Binary oldval newval)));
- ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ instruct weakCompareAndSwap_P_shenandoah(iRegINoSp res, indirect mem, iRegPNoSp oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (WeakCompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_acq_shenandoah $res = $mem, $oldval, $newval\t# (narrow oop, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchg_shenandoah $res = $mem, $oldval, $newval\t# (P, weak) if $mem == $oldval then $mem <-- $newval\n\t"
"csetw $res, EQ\t# $res <-- (EQ ? 1 : 0)"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- // Weak is not currently supported by ShenandoahBarrierSet::cmpxchg_oop
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ true, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ false,
+ /* weak = */ true,
+ /* acquire = */ false);
%}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapPAcq_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
- predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahWeakCompareAndSwapP mem (Binary oldval newval)));
- ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ instruct weakCompareAndSwap_P_A_shenandoah(iRegINoSp res, indirect mem, iRegPNoSp oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set res (WeakCompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_acq_shenandoah $res = $mem, $oldval, $newval\t# (ptr, weak) if $mem == $oldval then $mem <-- $newval"
+ "cmpxchg_acq_shenandoah $res = $mem, $oldval, $newval\t# (P, weak) if $mem == $oldval then $mem <-- $newval\n\t"
"csetw $res, EQ\t# $res <-- (EQ ? 1 : 0)"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- // Weak is not currently supported by ShenandoahBarrierSet::cmpxchg_oop
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register,
- /*acquire*/ true, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ assert($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+
+ ShenandoahBarrierSet::assembler()->compare_and_set_c2(this, masm,
+ $res$$Register,
+ $mem$$base$$Register,
+ $oldval$$Register,
+ $newval$$Register,
+ $tmp$$Register,
+ /* exchange = */ false,
+ /* narrow = */ false,
+ /* weak = */ true,
+ /* acquire */ true);
%}
+ ins_cost(VOLATILE_REF_COST);
ins_pipe(pipe_slow);
%}
+
+ instruct getAndSet_P_shenandoah(indirect mem, iRegP newval, iRegPNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetP mem newval));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF preval, TEMP tmp, KILL cr);
+ format %{ "atomic_xchg $preval, $newval, [$mem]" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->get_and_set_c2(this, masm,
+ $preval$$Register,
+ $newval$$Register,
+ $mem$$Register,
+ $tmp$$Register,
+ /* acquire = */ false);
+ %}
+ ins_cost(2*VOLATILE_REF_COST);
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSet_P_A_shenandoah(indirect mem, iRegP newval, iRegPNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetP mem newval));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF preval, TEMP tmp, KILL cr);
+ format %{ "atomic_xchg_acq $preval, $newval, [$mem]" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->get_and_set_c2(this, masm,
+ $preval$$Register,
+ $newval$$Register,
+ $mem$$Register,
+ $tmp$$Register,
+ /* acquire = */ true);
+ %}
+ ins_cost(2*VOLATILE_REF_COST);
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSet_N_shenandoah(indirect mem, iRegN newval, iRegNNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetN mem newval));
+ predicate(UseShenandoahGC && !needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF preval, TEMP tmp, KILL cr);
+ format %{ "atomic_xchgw $preval, $newval, [$mem]" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->get_and_set_c2(this, masm,
+ $preval$$Register,
+ $newval$$Register,
+ $mem$$Register,
+ $tmp$$Register,
+ /* acquire = */ false);
+ %}
+ ins_cost(2*VOLATILE_REF_COST);
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSet_N_A_shenandoah(indirect mem, iRegN newval, iRegNNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetN mem newval));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF preval, TEMP tmp, KILL cr);
+ format %{ "atomic_xchgw_acq $preval, $newval, [$mem]" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->get_and_set_c2(this, masm,
+ $preval$$Register,
+ $newval$$Register,
+ $mem$$Register,
+ $tmp$$Register,
+ /* acquire = */ true);
+ %}
+ ins_cost(2*VOLATILE_REF_COST);
+ ins_pipe(pipe_serial);
+ %}
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