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8326438: C2: assert(ld->in(1)->Opcode() == Op_LoadN) failed: Assumption invalid: input to DecodeN is not LoadN

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Reviewed-by: kvn, rcastanedalo, thartmann
This commit is contained in:
Daniel Lundén 2024-03-25 12:04:44 +00:00 committed by Tobias Hartmann
parent 29ba4b7d1e
commit 0c1b254be9
1 changed files with 4 additions and 2 deletions
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6
src/hotspot/share/opto/graphKit.cpp
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@ -1563,8 +1563,10 @@ Node* GraphKit::make_load(Node* ctl, Node* adr, const Type* t, BasicType bt,
// Improve graph before escape analysis and boxing elimination.
record_for_igvn(ld);
if (ld->is_DecodeN()) {
// Also record the actual load (LoadN) in case ld is DecodeN
assert(ld->in(1)->Opcode() == Op_LoadN, "Assumption invalid: input to DecodeN is not LoadN");
// Also record the actual load (LoadN) in case ld is DecodeN. In some
// rare corner cases, ld->in(1) can be something other than LoadN (e.g.,
// a Phi). Recording such cases is still perfectly sound, but may be
// unnecessary and result in some minor IGVN overhead.
record_for_igvn(ld->in(1));
}
}