src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
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8159431 Cdiff src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
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*** 2032,2041 ****
--- 2032,2062 ----
__ tst(dst);
__ brx(Assembler::equal, false, Assembler::pn, *stub->entry());
__ delayed()->nop();
}
+ // If the compiler was not able to prove that exact type of the source or the destination
+ // of the arraycopy is an array type, check at runtime if the source or the destination is
+ // an instance type.
+ if (flags & LIR_OpArrayCopy::type_check) {
+ if (!(flags & LIR_OpArrayCopy::LIR_OpArrayCopy::dst_objarray)) {
+ __ load_klass(dst, tmp);
+ __ lduw(tmp, in_bytes(Klass::layout_helper_offset()), tmp2);
+ __ cmp(tmp2, Klass::_lh_neutral_value);
+ __ br(Assembler::greaterEqual, false, Assembler::pn, *stub->entry());
+ __ delayed()->nop();
+ }
+
+ if (!(flags & LIR_OpArrayCopy::LIR_OpArrayCopy::src_objarray)) {
+ __ load_klass(src, tmp);
+ __ lduw(tmp, in_bytes(Klass::layout_helper_offset()), tmp2);
+ __ cmp(tmp2, Klass::_lh_neutral_value);
+ __ br(Assembler::greaterEqual, false, Assembler::pn, *stub->entry());
+ __ delayed()->nop();
+ }
+ }
+
if (flags & LIR_OpArrayCopy::src_pos_positive_check) {
// test src_pos register
__ cmp_zero_and_br(Assembler::less, src_pos, *stub->entry());
__ delayed()->nop();
}
src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
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