United StatesChange Country, Oracle Worldwide Web Sites Communities I am a... I want to...
Bug ID: 7123253 C1: in store check code, usage of registers may be incorrect
7123253 : C1: in store check code, usage of registers may be incorrect

Details
Type:
Bug
Submit Date:
2011-12-20
Status:
Closed
Updated Date:
2012-03-29
Project Name:
JDK
Resolved Date:
2012-03-29
Component:
hotspot
OS:
generic
Sub-Component:
compiler
CPU:
generic
Priority:
P4
Resolution:
Fixed
Affected Versions:
hs23
Fixed Versions:
hs23

Related Reports
Backport:
JDK-2219910 - C1: in store check code, usage of registers may be incorrect
Backport:
JDK-2219961 - C1: in store check code, usage of registers may be incorrect

Sub Tasks

Description
Assembly code in LIR_Assembler::emit_opTypeCheck() for case code == lir_store_check uses value (an input) after k_RInfo (a temp) is written to. If k_RInfo and value are the same, this code breaks.

Comments
EVALUATION

http://hg.openjdk.java.net/lambda/lambda/hotspot/rev/b642b49f9738
2012-03-22 
EVALUATION

http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/b642b49f9738
2011-12-23 
EVALUATION

Extend lifetime of input value/LIR_OpTypeCheck::object() to the whole store check LIR operation.
2011-12-20


Hardware and Software, Engineered to Work Together