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8361892: AArch64: Incorrect matching rule leading to improper oop instruction encoding

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Reviewed-by: shade, adinn
This commit is contained in:
Yadong Wang 2025-07-22 01:23:37 +00:00
parent 699b8112f8
commit dccb1782ec
1 changed files with 0 additions and 32 deletions
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32
src/hotspot/cpu/aarch64/aarch64.ad
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@ -3450,10 +3450,6 @@ encode %{
__ mov(dst_reg, (uint64_t)1);
%}
enc_class aarch64_enc_mov_byte_map_base(iRegP dst, immByteMapBase src) %{
__ load_byte_map_base($dst$$Register);
%}
enc_class aarch64_enc_mov_n(iRegN dst, immN src) %{
Register dst_reg = as_Register($dst$$reg);
address con = (address)$src$$constant;
@ -4554,20 +4550,6 @@ operand immP_1()
interface(CONST_INTER);
%}
// Card Table Byte Map Base
operand immByteMapBase()
%{
// Get base of card map
predicate(BarrierSet::barrier_set()->is_a(BarrierSet::CardTableBarrierSet) &&
SHENANDOAHGC_ONLY(!BarrierSet::barrier_set()->is_a(BarrierSet::ShenandoahBarrierSet) &&)
(CardTable::CardValue*)n->get_ptr() == ((CardTableBarrierSet*)(BarrierSet::barrier_set()))->card_table()->byte_map_base());
match(ConP);
op_cost(0);
format %{ %}
interface(CONST_INTER);
%}
// Float and Double operands
// Double Immediate
operand immD()
@ -6854,20 +6836,6 @@ instruct loadConP1(iRegPNoSp dst, immP_1 con)
ins_pipe(ialu_imm);
%}
// Load Byte Map Base Constant
instruct loadByteMapBase(iRegPNoSp dst, immByteMapBase con)
%{
match(Set dst con);
ins_cost(INSN_COST);
format %{ "adr $dst, $con\t# Byte Map Base" %}
ins_encode(aarch64_enc_mov_byte_map_base(dst, con));
ins_pipe(ialu_imm);
%}
// Load Narrow Pointer Constant
instruct loadConN(iRegNNoSp dst, immN con)