review for 6796786: invalid FP identity transform - (a - b) -> b (original) (raw)

Igor Veresov igor.veresov at oracle.com
Mon May 2 15:13:43 PDT 2011

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Looks good.

igor

On 5/2/11 2:25 PM, Tom Rodriguez wrote:

http://cr.openjdk.java.net/~never/6796786

6796786: invalid FP identity transform - (a - b) -> b - a Reviewed-by: C2 is transforming the idiom - (a - b) into b - a which produces the wrong sign if a == b. The fix is to eliminate that optimization. Tested with test from report.

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