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6827605: new String intrinsics may prevent EA scalar replacement

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6875866: Intrinsic for String.indexOf() is broken on x86 with SSE4.2

Modify String intrinsic methods to pass char[] pointers instead of string oops.

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2009-09-14 12:14:20 -07:00
parent c492f4cde5
commit 243514d483
13 changed files with 788 additions and 1214 deletions
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12
hotspot/src/share/vm/opto/memnode.cpp
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@ -2514,7 +2514,7 @@ Node* ClearArrayNode::clear_memory(Node* ctl, Node* mem, Node* dest,
//=============================================================================
// Do we match on this edge? No memory edges
uint StrCompNode::match_edge(uint idx) const {
return idx == 5 || idx == 6;
return idx == 2 || idx == 3; // StrComp (Binary str1 cnt1) (Binary str2 cnt2)
}
//------------------------------Ideal------------------------------------------
@ -2524,9 +2524,10 @@ Node *StrCompNode::Ideal(PhaseGVN *phase, bool can_reshape){
return remove_dead_region(phase, can_reshape) ? this : NULL;
}
//=============================================================================
// Do we match on this edge? No memory edges
uint StrEqualsNode::match_edge(uint idx) const {
return idx == 5 || idx == 6;
return idx == 2 || idx == 3; // StrEquals (Binary str1 str2) cnt
}
//------------------------------Ideal------------------------------------------
@ -2539,7 +2540,7 @@ Node *StrEqualsNode::Ideal(PhaseGVN *phase, bool can_reshape){
//=============================================================================
// Do we match on this edge? No memory edges
uint StrIndexOfNode::match_edge(uint idx) const {
return idx == 5 || idx == 6;
return idx == 2 || idx == 3; // StrIndexOf (Binary str1 cnt1) (Binary str2 cnt2)
}
//------------------------------Ideal------------------------------------------
@ -2549,6 +2550,11 @@ Node *StrIndexOfNode::Ideal(PhaseGVN *phase, bool can_reshape){
return remove_dead_region(phase, can_reshape) ? this : NULL;
}
//=============================================================================
// Do we match on this edge? No memory edges
uint AryEqNode::match_edge(uint idx) const {
return idx == 2 || idx == 3; // StrEquals ary1 ary2
}
//------------------------------Ideal------------------------------------------
// Return a node which is more "ideal" than the current node. Strip out
// control copies