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8198571: [JVMCI] must not install wide vector code unless runtime supports it

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Reviewed-by: kvn
This commit is contained in:
Doug Simon 2018-02-23 21:38:12 +01:00
parent 54361e56a8
commit a75784caa6
1 changed files with 4 additions and 1 deletions
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5
src/hotspot/share/jvmci/jvmciCodeInstaller.cpp
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@ -133,7 +133,10 @@ OopMap* CodeInstaller::create_oop_map(Handle debug_info, TRAPS) {
if (!reference_map->is_a(HotSpotReferenceMap::klass())) {
JVMCI_ERROR_NULL("unknown reference map: %s", reference_map->klass()->signature_name());
}
if (HotSpotReferenceMap::maxRegisterSize(reference_map) > 16) {
if (!_has_wide_vector && SharedRuntime::is_wide_vector(HotSpotReferenceMap::maxRegisterSize(reference_map))) {
if (SharedRuntime::polling_page_vectors_safepoint_handler_blob() == NULL) {
JVMCI_ERROR_NULL("JVMCI is producing code using vectors larger than the runtime supports");
}
_has_wide_vector = true;
}
OopMap* map = new OopMap(_total_frame_size, _parameter_count);