Mercurial > hg > truffle
diff src/share/vm/opto/c2_globals.hpp @ 3345:bad7ecd0b6ed
5091921: Sign flip issues in loop optimizer
Summary: Fix integer overflow problem in the code generated by loop optimizer.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Wed, 04 May 2011 13:12:42 -0700 |
| parents | 1d1603768966 |
| children | f08d439fab8c |
line wrap: on
line diff
--- a/src/share/vm/opto/c2_globals.hpp Wed May 04 03:42:58 2011 -0700 +++ b/src/share/vm/opto/c2_globals.hpp Wed May 04 13:12:42 2011 -0700 @@ -183,6 +183,21 @@ develop(bool, TraceLoopOpts, false, \ "Trace executed loop optimizations") \ \ + diagnostic(bool, LoopLimitCheck, true, \ + "Generate a loop limits check for overflow") \ + \ + develop(bool, TraceLoopLimitCheck, false, \ + "Trace generation of loop limits checks") \ + \ + diagnostic(bool, RangeLimitCheck, true, \ + "Additional overflow checks during range check elimination") \ + \ + develop(bool, TraceRangeLimitCheck, false, \ + "Trace additional overflow checks in RCE") \ + \ + diagnostic(bool, UnrollLimitCheck, true, \ + "Additional overflow checks during loop unroll") \ + \ product(bool, OptimizeFill, false, \ "convert fill/copy loops into intrinsic") \ \