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6761600: Use sse 4.2 in intrinsics

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Use SSE 4.2 in intrinsics for String.{compareTo/equals/indexOf} and Arrays.equals.

Reviewed-by: kvn, never, jrose
This commit is contained in:
Changpeng Fang 2009-03-31 14:07:08 -07:00
parent aee9449305
commit c0d62ad9e6
18 changed files with 1297 additions and 192 deletions
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6
hotspot/src/share/vm/opto/gcm.cpp
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@ -438,6 +438,12 @@ Block* PhaseCFG::insert_anti_dependences(Block* LCA, Node* load, bool verify) {
#endif
assert(load_alias_idx || (load->is_Mach() && load->as_Mach()->ideal_Opcode() == Op_StrComp),
"String compare is only known 'load' that does not conflict with any stores");
assert(load_alias_idx || (load->is_Mach() && load->as_Mach()->ideal_Opcode() == Op_StrEquals),
"String equals is a 'load' that does not conflict with any stores");
assert(load_alias_idx || (load->is_Mach() && load->as_Mach()->ideal_Opcode() == Op_StrIndexOf),
"String indexOf is a 'load' that does not conflict with any stores");
assert(load_alias_idx || (load->is_Mach() && load->as_Mach()->ideal_Opcode() == Op_AryEq),
"Arrays equals is a 'load' that do not conflict with any stores");
if (!C->alias_type(load_alias_idx)->is_rewritable()) {
// It is impossible to spoil this load by putting stores before it,