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8327413: Enhance compilation efficiency

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Co-authored-by: Roland Westrelin <roland@openjdk.org>
Reviewed-by: ahgross, rhalade, thartmann, epeter, mbalao, fferrari
This commit is contained in:
Christian Hagedorn 2024-03-26 11:43:35 +00:00 committed by Jaikiran Pai
parent e636325510
commit 553f21ae53
1 changed files with 2 additions and 1 deletions
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3
src/hotspot/share/opto/ifnode.cpp
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@ -773,6 +773,7 @@ bool IfNode::cmpi_folds(PhaseIterGVN* igvn, bool fold_ne) {
bool IfNode::is_ctrl_folds(Node* ctrl, PhaseIterGVN* igvn) {
return ctrl != nullptr &&
ctrl->is_Proj() &&
ctrl->outcnt() == 1 && // No side-effects
ctrl->in(0) != nullptr &&
ctrl->in(0)->Opcode() == Op_If &&
ctrl->in(0)->outcnt() == 2 &&
@ -1346,7 +1347,7 @@ Node* IfNode::fold_compares(PhaseIterGVN* igvn) {
if (cmpi_folds(igvn)) {
Node* ctrl = in(0);
if (is_ctrl_folds(ctrl, igvn) && ctrl->outcnt() == 1) {
if (is_ctrl_folds(ctrl, igvn)) {
// A integer comparison immediately dominated by another integer
// comparison
ProjNode* success = nullptr;