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8238691: C2: turn subtype check into macro node

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Reviewed-by: vlivanov, thartmann
This commit is contained in:
Roland Westrelin 2020-02-14 10:31:34 +01:00
parent e4b27a48a0
commit 52d46c314b
18 changed files with 443 additions and 71 deletions
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2
src/hotspot/share/opto/macroArrayCopy.cpp
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@ -524,7 +524,7 @@ Node* PhaseMacroExpand::generate_arraycopy(ArrayCopyNode *ac, AllocateArrayNode*
// Test S[] against D[], not S against D, because (probably)
// the secondary supertype cache is less busy for S[] than S.
// This usually only matters when D is an interface.
Node* not_subtype_ctrl = Phase::gen_subtype_check(src_klass, dest_klass, ctrl, mem, &_igvn);
Node* not_subtype_ctrl = Phase::gen_subtype_check(src_klass, dest_klass, ctrl, mem, _igvn);
// Plug failing path into checked_oop_disjoint_arraycopy
if (not_subtype_ctrl != top()) {
Node* local_ctrl = not_subtype_ctrl;