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8008242: VerifyOops is broken on SPARC

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Fixed displacement issues in SPARC macroassembler and ensure that getClass intrinsic temporary result is T_METADATA

Reviewed-by: kvn, twisti
This commit is contained in:
Morris Meyer 2013-10-18 12:15:32 -07:00
parent 8a2c02c416
commit 801b3e680e
5 changed files with 23 additions and 8 deletions
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8
hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
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@ -1265,6 +1265,7 @@ void LIRGenerator::do_getClass(Intrinsic* x) {
LIRItem rcvr(x->argument_at(0), this);
rcvr.load_item();
LIR_Opr temp = new_register(T_METADATA);
LIR_Opr result = rlock_result(x);
// need to perform the null check on the rcvr
@ -1272,8 +1273,11 @@ void LIRGenerator::do_getClass(Intrinsic* x) {
if (x->needs_null_check()) {
info = state_for(x);
}
__ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), result, info);
__ move_wide(new LIR_Address(result, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result);
// FIXME T_ADDRESS should actually be T_METADATA but it can't because the
// meaning of these two is mixed up (see JDK-8026837).
__ move(new LIR_Address(rcvr.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), temp, info);
__ move_wide(new LIR_Address(temp, in_bytes(Klass::java_mirror_offset()), T_OBJECT), result);
}