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8282221: x86 intrinsics for divideUnsigned and remainderUnsigned methods in java.lang.Integer and java.lang.Long

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Reviewed-by: sviswanathan, kvn, jbhateja
This commit is contained in:
vamsi-parasa 2022-04-10 03:47:18 +00:00 • committed by Jatin Bhateja
parent 0b867b5e73
commit 37e28aea27
20 changed files with 1155 additions and 2 deletions
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31
src/hotspot/share/opto/compile.cpp
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@ -21,7 +21,6 @@
* questions.
*
*/
#include "precompiled.hpp"
#include "jvm_io.h"
#include "asm/macroAssembler.hpp"
@ -3500,6 +3499,36 @@ void Compile::final_graph_reshaping_main_switch(Node* n, Final_Reshape_Counts& f
}
break;
case Op_UModI:
if (UseDivMod) {
// Check if a%b and a/b both exist
Node* d = n->find_similar(Op_UDivI);
if (d) {
// Replace them with a fused unsigned divmod if supported
if (Matcher::has_match_rule(Op_UDivModI)) {
UDivModINode* divmod = UDivModINode::make(n);
d->subsume_by(divmod->div_proj(), this);
n->subsume_by(divmod->mod_proj(), this);
}
}
}
break;
case Op_UModL:
if (UseDivMod) {
// Check if a%b and a/b both exist
Node* d = n->find_similar(Op_UDivL);
if (d) {
// Replace them with a fused unsigned divmod if supported
if (Matcher::has_match_rule(Op_UDivModL)) {
UDivModLNode* divmod = UDivModLNode::make(n);
d->subsume_by(divmod->div_proj(), this);
n->subsume_by(divmod->mod_proj(), this);
}
}
}
break;
case Op_LoadVector:
case Op_StoreVector:
case Op_LoadVectorGather: