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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"
+ #include "gc/shenandoah/c2/shenandoahBarrierSetC2.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$$Register);
+ instruct storeP_shenandoah(indirect mem, iRegP src, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set mem (StoreP mem src));
+ predicate(UseShenandoahGC && !needs_releasing_store(n) && n->as_Store()->barrier_data() != 0);
+ effect(TEMP tmp, KILL cr);
+ ins_cost(INSN_COST);
+ format %{ "str $src, $mem\t# ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* pre_val */);
+ __ str($src$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
+ ins_pipe(istore_reg_mem);
+ %}
- enc_class aarch64_enc_cmpxchg_acq_oop_shenandoah(memory mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, iRegINoSp res) %{
- guarantee($mem$$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 storePVolatile_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);
+ ins_cost(VOLATILE_REF_COST);
+ format %{ "stlr $src, $mem\t# ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* obj */,
+ $tmp$$Register /* pre_val */);
+ __ stlr($src$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_class_memory);
+ %}
+
+ instruct storeN_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);
+ ins_cost(INSN_COST);
+ format %{ "strw $src, $mem\t# compressed ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* obj */,
+ $tmp$$Register /* pre_val */);
+ __ strw($src$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(istore_reg_mem);
+ %}
+
+ instruct storeNVolatile_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);
+ ins_cost(VOLATILE_REF_COST);
+ format %{ "stlrw $src, $mem\t# compressed ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* obj */,
+ $tmp$$Register /* pre_val */);
+ __ stlrw($src$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_class_memory);
+ %}
+
+ instruct encodePAndStoreN_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);
+ ins_cost(INSN_COST);
+ format %{ "encode_heap_oop $tmp, $src\n\t"
+ "strw $tmp, $mem\t# compressed ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* obj */,
+ $tmp$$Register /* pre_val */);
+ if ((barrier_data() & ShenandoahBarrierCardMarkNotNull) == 0) {
+ __ encode_heap_oop($tmp$$Register, $src$$Register);
+ } else {
+ __ encode_heap_oop_not_null($tmp$$Register, $src$$Register);
+ }
+ __ strw($tmp$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(istore_reg_mem);
+ %}
+
+ instruct encodePAndStoreNVolatile_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);
+ ins_cost(VOLATILE_REF_COST);
+ format %{ "encode_heap_oop $tmp, $src\n\t"
+ "stlrw $tmp, $mem\t# compressed ptr" %}
+ ins_encode %{
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ $mem$$Register /* obj */,
+ $tmp$$Register /* pre_val */);
+ if ((barrier_data() & ShenandoahBarrierCardMarkNotNull) == 0) {
+ __ encode_heap_oop($tmp$$Register, $src$$Register);
+ } else {
+ __ encode_heap_oop_not_null($tmp$$Register, $src$$Register);
+ }
+ __ stlrw($tmp$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
+ 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)));
+ match(Set res (CompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ 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"
+ "cmpxchg_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
- ins_encode(aarch64_enc_cmpxchg_oop_shenandoah(mem, oldval, newval, tmp, res));
+ ins_encode %{
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ false, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
ins_pipe(pipe_slow);
%}
- instruct compareAndSwapN_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
+ instruct compareAndSwapN_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahCompareAndSwapN mem (Binary oldval newval)));
+ match(Set res (CompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "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*/ false, $res$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ false, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
- instruct compareAndSwapPAcq_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ instruct compareAndSwapPAcq_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegINoSp tmp, rFlagsReg cr) %{
+ match(Set res (CompareAndSwapP mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchg_acq_shenandoah_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "cmpxchg_acq_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
- ins_encode(aarch64_enc_cmpxchg_acq_oop_shenandoah(mem, oldval, newval, tmp, res));
+ ins_encode %{
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ false, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
ins_pipe(pipe_slow);
%}
- instruct compareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
+ instruct compareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (CompareAndSwapN mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
- "cmpxchgw_acq_shenandoah_narrow_oop $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval with temp $tmp"
+ "cmpxchgw_acq_shenandoah $mem, $oldval, $newval\t# (ptr) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$Register;
- __ mov(tmp, $oldval$$Register); // Must not clobber oldval.
- ShenandoahBarrierSet::assembler()->cmpxchg_oop(masm, $mem$$Register, tmp, $newval$$Register, /*acquire*/ true, /*release*/ true, /*is_cae*/ false, $res$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ false, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
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)));
+ instruct compareAndExchangeN_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (CompareAndExchangeN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
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"
%}
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$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ false, /*is_cae*/ true);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $res$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
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)));
+ match(Set res (CompareAndExchangeP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
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"
+ "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*/ false, /*release*/ true, /*is_cae*/ true, $res$$Register);
- %}
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ false, /*is_cae*/ true);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $res$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ false /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
ins_pipe(pipe_slow);
%}
- instruct compareAndExchangeNAcq_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
+ instruct compareAndExchangeNAcq_shenandoah(iRegNNoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (CompareAndExchangeN mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndExchangeN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
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"
%}
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$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ false, /*is_cae*/ true);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $res$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
instruct compareAndExchangePAcq_shenandoah(iRegPNoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (CompareAndExchangeP mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahCompareAndExchangeP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
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$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ false, /*is_cae*/ true);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $res$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ false /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
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)));
+ instruct weakCompareAndSwapN_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (WeakCompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ 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"
"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$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ true, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapP_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
- match(Set res (ShenandoahWeakCompareAndSwapP mem (Binary oldval newval)));
+ instruct weakCompareAndSwapP_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegINoSp tmp, rFlagsReg cr) %{
+ match(Set res (WeakCompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(2 * VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
"cmpxchg_shenandoah $res = $mem, $oldval, $newval\t# (ptr, weak) if $mem == $oldval then $mem <-- $newval"
%}
ins_encode %{
- Register tmp = $tmp$$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);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ false, /*release*/ true, /*weak*/ true, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
- instruct weakCompareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegNNoSp tmp, rFlagsReg cr) %{
+ instruct weakCompareAndSwapNAcq_shenandoah(iRegINoSp res, indirect mem, iRegN oldval, iRegN newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (WeakCompareAndSwapN mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahWeakCompareAndSwapN mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ 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"
"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$$Register);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ guarantee(UseCompressedOops, "must be compressed oops");
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $oldval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ true, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
instruct weakCompareAndSwapPAcq_shenandoah(iRegINoSp res, indirect mem, iRegP oldval, iRegP newval, iRegPNoSp tmp, rFlagsReg cr) %{
+ match(Set res (WeakCompareAndSwapP mem (Binary oldval newval)));
predicate(needs_acquiring_load_exclusive(n));
- match(Set res (ShenandoahWeakCompareAndSwapP mem (Binary oldval newval)));
+ predicate(UseShenandoahGC && n->as_LoadStore()->barrier_data() != 0);
ins_cost(VOLATILE_REF_COST);
- effect(TEMP tmp, KILL cr);
+ effect(TEMP_DEF res, TEMP tmp, KILL cr);
format %{
"cmpxchg_acq_shenandoah $res = $mem, $oldval, $newval\t# (ptr, weak) if $mem == $oldval then $mem <-- $newval"
"csetw $res, EQ\t# $res <-- (EQ ? 1 : 0)"
%}
ins_encode %{
- Register tmp = $tmp$$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);
+ guarantee($mem$$index == -1 && $mem$$disp == 0, "impossible encoding");
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $oldval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->cmpxchg_oop_c2(this, masm, $mem$$base$$Register, $oldval$$Register, $newval$$Register, $res$$Register,
+ /*acquire*/ true, /*release*/ true, /*weak*/ true, /*is_cae*/ false);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
%}
ins_pipe(pipe_slow);
%}
+
+ instruct getAndSetP_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);
+ ins_cost(2 * VOLATILE_REF_COST);
+ format %{ "atomic_xchg $preval, $newval, [$mem]" %}
+ ins_encode %{
+ assert_different_registers($mem$$Register, $newval$$Register);
+ __ atomic_xchg($preval$$Register, $newval$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $preval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $preval$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ false /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSetPAcq_shenandoah(indirect mem, iRegP newval, iRegPNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetP mem newval));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP_DEF preval, TEMP tmp, KILL cr);
+ ins_cost(VOLATILE_REF_COST);
+ format %{ "atomic_xchg_acq $preval, $newval, [$mem]" %}
+ ins_encode %{
+ assert_different_registers($mem$$Register, $newval$$Register);
+ __ atomic_xchgal($preval$$Register, $newval$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $preval$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $preval$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ false /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSetN_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 preval, TEMP tmp, KILL cr);
+ ins_cost(2 * VOLATILE_REF_COST);
+ format %{ "atomic_xchgw $preval, $newval, [$mem]" %}
+ ins_encode %{
+ assert_different_registers($mem$$Register, $newval$$Register);
+ __ atomic_xchgw($preval$$Register, $newval$$Register, $mem$$Register);
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $preval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $preval$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct getAndSetNAcq_shenandoah(indirect mem, iRegN newval, iRegNNoSp preval, iRegPNoSp tmp, rFlagsReg cr)
+ %{
+ match(Set preval (GetAndSetN mem newval));
+ predicate(UseShenandoahGC && needs_acquiring_load_exclusive(n) && n->as_LoadStore()->barrier_data() != 0);
+ effect(TEMP preval, TEMP tmp, KILL cr);
+ ins_cost(VOLATILE_REF_COST);
+ format %{ "atomic_xchgw_acq $preval, $newval, [$mem]" %}
+ ins_encode %{
+ assert_different_registers($mem$$Register, $newval$$Register);
+ __ atomic_xchgalw($preval$$Register, $newval$$Register, $mem$$Register);
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $preval$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $preval$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ ShenandoahBarrierSet::assembler()->card_barrier_c2(this, masm,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */);
+ %}
+ ins_pipe(pipe_serial);
+ %}
+
+ instruct loadP_shenandoah(iRegPNoSp dst, indirect mem, rFlagsReg cr)
+ %{
+ // This instruction does not need an acquiring counterpart because it is only
+ // used for reference loading (Reference::get()).
+ match(Set dst (LoadP mem));
+ predicate(UseShenandoahGC && !needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP_DEF dst, KILL cr);
+ ins_cost(4 * INSN_COST);
+ format %{ "ldr $dst, $mem\t# ptr" %}
+ ins_encode %{
+ __ ldr($dst$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $dst$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $dst$$Register /* obj */,
+ $mem$$Register /* addr */,
+ noreg /* noreg - not needed */,
+ false /* narrow */,
+ true /* maybe_null */);
+ %}
+ ins_pipe(iload_reg_mem);
+ %}
+
+ instruct loadP_volatile_shenandoah(iRegPNoSp dst, indirect mem, rFlagsReg cr)
+ %{
+ // This instruction does not need an acquiring counterpart because it is only
+ // used for reference loading (Reference::get()).
+ match(Set dst (LoadP mem));
+ predicate(UseShenandoahGC && needs_acquiring_load(n) && n->as_Load()->barrier_data() != 0);
+ effect(TEMP dst, KILL cr);
+ ins_cost(4 * INSN_COST);
+ format %{ "ldar $dst, $mem\t# ptr" %}
+ ins_encode %{
+ __ ldar($dst$$Register, $mem$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $dst$$Register /* pre_val */);
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $dst$$Register /* obj */,
+ $mem$$Register /* addr */,
+ noreg /* noreg - not needed */,
+ false /* narrow */,
+ true /* maybe_null */);
+ %}
+ ins_pipe(iload_reg_mem);
+ %}
+
+ instruct loadN_shenandoah(iRegNNoSp dst, indirect 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);
+ ins_cost(INSN_COST * 4);
+ format %{ "ldrw $dst, $mem\t# compressed ptr" %}
+ ins_encode %{
+ __ ldrw($dst$$Register, $mem$$Register);
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $dst$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $dst$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ %}
+ ins_pipe(ialu_reg);
+ %}
+
+ instruct loadN_volatile_shenandoah(iRegNNoSp dst, indirect mem, iRegPNoSp tmp, rFlagsReg cr) %{
+ predicate(UseShenandoahGC && /*needs_acquiring_load(n) && */ n->as_Load()->barrier_data() != 0);
+ match(Set dst (LoadN mem));
+ effect(TEMP_DEF dst, TEMP tmp, KILL cr);
+ ins_cost(INSN_COST * 3);
+ format %{ "ldarw $dst, $mem\t# ptr"
+ "decode_heap_oop $dst, $dst"
+ %}
+ ins_encode %{
+ __ ldarw($dst$$Register, $mem$$Register);
+ if (ShenandoahSATBBarrierStubC2::needs_barrier(this)) {
+ __ decode_heap_oop($tmp$$Register, $dst$$Register);
+ ShenandoahBarrierSet::assembler()->satb_barrier_c2(this, masm,
+ noreg /* obj */,
+ $tmp$$Register /* pre_val */);
+ }
+ ShenandoahBarrierSet::assembler()->load_ref_barrier_c2(this, masm,
+ $dst$$Register /* obj */,
+ $mem$$Register /* addr */,
+ $tmp$$Register /* tmp */,
+ true /* narrow */,
+ true /* maybe_null */);
+ %}
+ ins_pipe(ialu_reg);
+ %}
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