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7077806: ARM: java.lang.InternalError: bound subword value does not fit into the subword type

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Shared fix necessary for ARM/PPC

Reviewed-by: twisti, roland
This commit is contained in:
Bertrand Delsart 2011-09-14 16:28:39 +02:00
parent fcc31d9741
commit bc855ff2e0
1 changed files with 4 additions and 3 deletions
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7
hotspot/src/share/vm/prims/methodHandles.hpp
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@ -515,11 +515,12 @@ class MethodHandles: AllStatic {
} }
// Here is the transformation the i2i adapter must perform: // Here is the transformation the i2i adapter must perform:
static int truncate_subword_from_vminfo(jint value, int vminfo) { static int truncate_subword_from_vminfo(jint value, int vminfo) {
jint tem = value << vminfo; int shift = vminfo & ~CONV_VMINFO_SIGN_FLAG;
jint tem = value << shift;
if ((vminfo & CONV_VMINFO_SIGN_FLAG) != 0) { if ((vminfo & CONV_VMINFO_SIGN_FLAG) != 0) {
return (jint)tem >> vminfo; return (jint)tem >> shift;
} else { } else {
return (juint)tem >> vminfo; return (juint)tem >> shift;
} }
} }