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8167199: Add C2 SPARC intrinsic for BigInteger::multiplyToLen() method

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Preliminary support for intrinsic multiplyToLen, including generalised version based on 'mpmul' instruction (when available).

Reviewed-by: kvn, neliasso
This commit is contained in:
Patric Hedlin 2017-09-29 10:40:54 +02:00 • committed by Nils Eliasson
parent 1af1d42ac4
commit b125aebb91
10 changed files with 912 additions and 59 deletions
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26
src/hotspot/cpu/sparc/macroAssembler_sparc.cpp
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@ -1574,29 +1574,39 @@ void MacroAssembler::br_null_short(Register s1, Predict p, Label& L) {
assert_not_delayed();
if (use_cbcond(L)) {
Assembler::cbcond(zero, ptr_cc, s1, 0, L);
return;
} else {
br_null(s1, false, p, L);
delayed()->nop();
}
br_null(s1, false, p, L);
delayed()->nop();
}
void MacroAssembler::br_notnull_short(Register s1, Predict p, Label& L) {
assert_not_delayed();
if (use_cbcond(L)) {
Assembler::cbcond(notZero, ptr_cc, s1, 0, L);
return;
} else {
br_notnull(s1, false, p, L);
delayed()->nop();
}
br_notnull(s1, false, p, L);
delayed()->nop();
}
// Unconditional short branch
void MacroAssembler::ba_short(Label& L) {
assert_not_delayed();
if (use_cbcond(L)) {
Assembler::cbcond(equal, icc, G0, G0, L);
return;
} else {
br(always, false, pt, L);
delayed()->nop();
}
br(always, false, pt, L);
}
// Branch if 'icc' says zero or not (i.e. icc.z == 1|0).
void MacroAssembler::br_icc_zero(bool iszero, Predict p, Label &L) {
assert_not_delayed();
Condition cf = (iszero ? Assembler::zero : Assembler::notZero);
br(cf, false, p, L);
delayed()->nop();
}