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Quick Lists
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Bug ID:
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6757316
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Votes
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0
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Synopsis
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load_constant() produces a wrong long constant, with high a low words swapped
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Category
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hotspot:compiler1
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Reported Against
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Release Fixed
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hs14(b09),
hs11(b17) (Bug ID:2169324)
, 6u12(b01) (Bug ID:2170220)
, 7(b42) (Bug ID:2172400)
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State
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10-Fix Delivered,
bug
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Priority:
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1-Very High
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Related Bugs
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Submit Date
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08-OCT-2008
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Description
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C1 code generator refers to invalid T_LONG constant in case a similar constant with high and low words swapped is present.
The test case:
public static void main(String[] args) {
long[] arr = {
0x11111111aaaaaaaaL,
0xaaaaaaaa11111111L,
0x11111111aaaaaaaaL,
0xaaaaaaaa11111111L
};
System.out.println(Long.toHexString(arr[1]));
}
The output is wrong (11111111aaaaaaaa) on SPARC and on ARM.
Posted Date : 2008-10-08 15:26:17.0
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Work Around
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N/A
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Evaluation
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The problem was found in LIRGenerator::load_constant(). See comments and suggester fix for details.
Posted Date : 2008-10-17 15:23:44.0
http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/a738a625039a
Posted Date : 2008-12-13 09:19:41.0
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Comments
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PLEASE NOTE: JDK6 is formerly known as Project Mustang
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