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6879921: CTW failure jdk6_18/hotspot/src/share/vm/utilities/globalDefinitions.cpp:268

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Filter out non-primitives before deciding whether two ops can be packed

Reviewed-by: kvn, never
This commit is contained in:
Changpeng Fang 2009-09-15 11:09:34 -07:00
parent 243514d483
commit 1cf5b7ae11
1 changed files with 6 additions and 0 deletions
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6
hotspot/src/share/vm/opto/superword.cpp
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@ -473,6 +473,12 @@ void SuperWord::mem_slice_preds(Node* start, Node* stop, GrowableArray<Node*> &p
// Can s1 and s2 be in a pack with s1 immediately preceding s2 and
// s1 aligned at "align"
bool SuperWord::stmts_can_pack(Node* s1, Node* s2, int align) {
// Do not use superword for non-primitives
if((s1->is_Mem() && !is_java_primitive(s1->as_Mem()->memory_type())) ||
(s2->is_Mem() && !is_java_primitive(s2->as_Mem()->memory_type())))
return false;
if (isomorphic(s1, s2)) {
if (independent(s1, s2)) {
if (!exists_at(s1, 0) && !exists_at(s2, 1)) {