diff --git a/hotspot/src/cpu/aarch64/vm/aarch64.ad b/hotspot/src/cpu/aarch64/vm/aarch64.ad index e980a2332f3..8483c709564 100644 --- a/hotspot/src/cpu/aarch64/vm/aarch64.ad +++ b/hotspot/src/cpu/aarch64/vm/aarch64.ad @@ -14191,6 +14191,25 @@ instruct cmpP_imm0_branch(cmpOp cmp, iRegP op1, immP0 op2, label labl, rFlagsReg ins_pipe(pipe_cmp_branch); %} +instruct cmpN_imm0_branch(cmpOp cmp, iRegN op1, immN0 op2, label labl, rFlagsReg cr) %{ + match(If cmp (CmpN op1 op2)); + predicate(n->in(1)->as_Bool()->_test._test == BoolTest::ne + || n->in(1)->as_Bool()->_test._test == BoolTest::eq); + effect(USE labl); + + ins_cost(BRANCH_COST); + format %{ "cbw$cmp $op1, $labl" %} + ins_encode %{ + Label* L = $labl$$label; + Assembler::Condition cond = (Assembler::Condition)$cmp$$cmpcode; + if (cond == Assembler::EQ) + __ cbzw($op1$$Register, *L); + else + __ cbnzw($op1$$Register, *L); + %} + ins_pipe(pipe_cmp_branch); +%} + instruct cmpP_narrowOop_imm0_branch(cmpOp cmp, iRegN oop, immP0 zero, label labl, rFlagsReg cr) %{ match(If cmp (CmpP (DecodeN oop) zero)); predicate(n->in(1)->as_Bool()->_test._test == BoolTest::ne