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8285040: PPC64 intrinsics for divideUnsigned and remainderUnsigned methods in java.lang.Integer and java.lang.Long

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Reviewed-by: kvn, lucy
This commit is contained in:
Martin Doerr 2022-04-21 16:00:28 +00:00
parent 73f3e17ea7
commit e955cacb91
4 changed files with 59 additions and 0 deletions
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10
src/hotspot/share/opto/compile.cpp
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@ -3510,6 +3510,11 @@ void Compile::final_graph_reshaping_main_switch(Node* n, Final_Reshape_Counts& f
UDivModINode* divmod = UDivModINode::make(n);
d->subsume_by(divmod->div_proj(), this);
n->subsume_by(divmod->mod_proj(), this);
} else {
// replace a%b with a-((a/b)*b)
Node* mult = new MulINode(d, d->in(2));
Node* sub = new SubINode(d->in(1), mult);
n->subsume_by(sub, this);
}
}
}
@ -3525,6 +3530,11 @@ void Compile::final_graph_reshaping_main_switch(Node* n, Final_Reshape_Counts& f
UDivModLNode* divmod = UDivModLNode::make(n);
d->subsume_by(divmod->div_proj(), this);
n->subsume_by(divmod->mod_proj(), this);
} else {
// replace a%b with a-((a/b)*b)
Node* mult = new MulLNode(d, d->in(2));
Node* sub = new SubLNode(d->in(1), mult);
n->subsume_by(sub, this);
}
}
}