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add missing save/restore for montgomeryMultiply/Square

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This commit is contained in:
Andrew Dinn 2026-03-11 13:54:19 +00:00
parent dcbd7a22ea
commit b68f047e92
1 changed files with 22 additions and 8 deletions
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30
src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
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@ -12658,18 +12658,32 @@ class StubGenerator: public StubCodeGenerator {
if (UseMontgomeryMultiplyIntrinsic) {
StubId stub_id = StubId::stubgen_montgomeryMultiply_id;
StubCodeMark mark(this, stub_id);
MontgomeryMultiplyGenerator g(_masm, /*squaring*/false);
StubRoutines::_montgomeryMultiply = g.generate_multiply();
address start = load_archive_data(stub_id);
if (start == nullptr) {
// we have to generate it
StubCodeMark mark(this, stub_id);
MontgomeryMultiplyGenerator g(_masm, /*squaring*/false);
start = g.generate_multiply();
// record the stub start and end
store_archive_data(stub_id, start, _masm->pc());
}
StubRoutines::_montgomeryMultiply = start;
}
if (UseMontgomerySquareIntrinsic) {
StubId stub_id = StubId::stubgen_montgomerySquare_id;
StubCodeMark mark(this, stub_id);
MontgomeryMultiplyGenerator g(_masm, /*squaring*/true);
// We use generate_multiply() rather than generate_square()
// because it's faster for the sizes of modulus we care about.
StubRoutines::_montgomerySquare = g.generate_multiply();
address start = load_archive_data(stub_id);
if (start == nullptr) {
// we have to generate it
StubCodeMark mark(this, stub_id);
MontgomeryMultiplyGenerator g(_masm, /*squaring*/true);
// We use generate_multiply() rather than generate_square()
// because it's faster for the sizes of modulus we care about.
start = g.generate_multiply();
// record the stub start and end
store_archive_data(stub_id, start, _masm->pc());
}
StubRoutines::_montgomerySquare = start;
}
#endif // COMPILER2