Mercurial > hg > truffle
diff src/share/vm/opto/library_call.cpp @ 169:9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
Summary: Intrinsify java/util/Arrays.equals(char[], char[])
Reviewed-by: kvn, never
| author | rasbold |
|---|---|
| date | Thu, 29 May 2008 16:22:09 -0700 |
| parents | c436414a719e |
| children | 510f98a80563 |
line wrap: on
line diff
--- a/src/share/vm/opto/library_call.cpp Thu May 29 12:04:14 2008 -0700 +++ b/src/share/vm/opto/library_call.cpp Thu May 29 16:22:09 2008 -0700 @@ -163,6 +163,7 @@ bool inline_native_newArray(); bool inline_native_getLength(); bool inline_array_copyOf(bool is_copyOfRange); + bool inline_array_equals(); bool inline_native_clone(bool is_virtual); bool inline_native_Reflection_getCallerClass(); bool inline_native_AtomicLong_get(); @@ -259,6 +260,7 @@ switch (id) { case vmIntrinsics::_indexOf: case vmIntrinsics::_compareTo: + case vmIntrinsics::_equalsC: break; // InlineNatives does not control String.compareTo default: return NULL; @@ -272,6 +274,9 @@ case vmIntrinsics::_indexOf: if (!SpecialStringIndexOf) return NULL; break; + case vmIntrinsics::_equalsC: + if (!SpecialArraysEquals) return NULL; + break; case vmIntrinsics::_arraycopy: if (!InlineArrayCopy) return NULL; break; @@ -586,6 +591,8 @@ return inline_array_copyOf(false); case vmIntrinsics::_copyOfRange: return inline_array_copyOf(true); + case vmIntrinsics::_equalsC: + return inline_array_equals(); case vmIntrinsics::_clone: return inline_native_clone(intrinsic()->is_virtual()); @@ -813,6 +820,22 @@ return true; } +//------------------------------inline_array_equals---------------------------- +bool LibraryCallKit::inline_array_equals() { + + _sp += 2; + Node *argument2 = pop(); + Node *argument1 = pop(); + + Node* equals = + _gvn.transform(new (C, 3) AryEqNode(control(), + argument1, + argument2) + ); + push(equals); + return true; +} + // Java version of String.indexOf(constant string) // class StringDecl { // StringDecl(char[] ca) {