archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-18 01:54:47 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8233019: java.lang.Class.isPrimitive() (C1) returns wrong result if Klass* is aligned to 32bit

Browse source 
Reviewed-by: mdoerr, dlong, aph
This commit is contained in:
Thomas Stuefe 2019-10-31 07:53:16 +01:00
parent bc8822095f
commit 13cc1154f0
8 changed files with 63 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/hotspot/share/c1/c1_LIRGenerator.cpp
View file

@ -1301,7 +1301,7 @@ void LIRGenerator::do_isPrimitive(Intrinsic* x) {
}
__ move(new LIR_Address(rcvr.result(), java_lang_Class::klass_offset_in_bytes(), T_ADDRESS), temp, info);
__ cmp(lir_cond_notEqual, temp, LIR_OprFact::intConst(0));
__ cmp(lir_cond_notEqual, temp, LIR_OprFact::metadataConst(0));
__ cmove(lir_cond_notEqual, LIR_OprFact::intConst(0), LIR_OprFact::intConst(1), result, T_BOOLEAN);
}