0ca0fd1514
8196663: [TESTBUG] test/compiler/loopopts/TestCMovSplitThruPhi.java fails on 32 bit Java
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Reviewed-by: kvn
2018-02-06 22:11:51 -08:00
8f26c07b53
8187822: C2 conditonal move optimization might create broken graph
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Reviewed-by: kvn
2017-11-08 23:32:03 -05:00
d4f26304e5
8166742: SIGFPE in C2 Loop IV elimination
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Reviewed-by: kvn
2017-09-07 09:21:05 -04:00
c6db213e6e
8177095: Range check dependent CastII/ConvI2L is prematurely eliminated
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Disabled narrowing of range check dependent CastIIs (either through the CastII(AddI) optimization or through CastIINode::Ideal).
Reviewed-by: vlivanov, kvn
2017-03-29 09:20:08 +02:00
cfe7d16002
8162603: Unrecognized VM option 'UseCountedLoopSafepoints'
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Reviewed-by: kvn
2016-07-28 16:09:31 +03:00
00c5ef5b27
8161147: jvm crashes when -XX:+UseCountedLoopSafepoints is enabled
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Don't convert loop with safepoint on the backedge to Counted loop
Reviewed-by: kvn
2016-07-25 14:31:42 -07:00
669b6b9bc7
8147645: get_ctrl_no_update() code is wrong
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Array.fill intrinsification code doesn't mark replaced control as dead
Reviewed-by: kvn
2016-02-03 10:58:50 +01:00
1dc5cadca0
8073735: compiler/loopopts/CountedLoopProblem.java got OOME
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Ignore OOM in the test
Reviewed-by: kvn
2016-01-28 09:41:33 +00:00
f51da0f1a0
6675699: need comprehensive fix for unconstrained ConvI2L with narrowed type
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Emit CastII to make narrow ConvI2L dependent on the corresponding range check.
Reviewed-by: kvn, roland
2016-01-27 09:02:51 +01:00
a530cac62d
6869327: Add new C2 flag to keep safepoints in counted loops
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Reviewed-by: kvn
2015-12-04 14:06:38 +01:00
fae0f563be
8078497: C2's superword optimization causes unaligned memory accesses
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Prevent vectorization of memory operations with different invariant offsets if unaligned memory accesses are not allowed.
Reviewed-by: kvn
2015-05-08 12:19:17 +02:00
c0443563e8
8074869: C2 code generator can replace -0.0f with +0.0f on Linux
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Instead of 'fpclass', use cast float->int and double->long to check if value is +0.0f and +0.0d, respectively.
Reviewed-by: kvn, simonis, dlong
2015-03-19 19:53:34 +01:00
f4ad3e3de7
8072753: Nondeterministic wrong answer on arithmetic
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Check for overflow when inverting the loop during the counted loop conversion
Reviewed-by: kvn
2015-02-17 11:00:18 -08:00
c59945db1a
8054478: C2: Incorrectly compiled char[] array access crashes JVM
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Dead backbranch in main loop results in erroneous array access
Reviewed-by: kvn, iveresov
2014-12-01 22:27:00 +01:00
86eb6091d2
8046516: Segmentation fault in JVM (easily reproducible)
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Place new nodes on the previous loop exit in reorg_offsets().
Reviewed-by: roland
2014-06-12 10:15:43 -07:00
Vaibhav Choudhary
Roland Westrelin
David Buck
Tobias Hartmann
Dmitrij Pochepko
Cheleswer Sahu
Andreas Eriksson
Zoltan Majo
Igor Veresov
Vladimir Kozlov