* [9fans] gcc bug qed [plan or side effect]
@ 2002-03-05 9:41 ozan s. yigit
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From: ozan s. yigit @ 2002-03-05 9:41 UTC (permalink / raw)
To: 9fans
in case thomas cares, bug in the gcc optimizer for 3.0.4 under i386. sparc
version (egcs 2.91) does not have the bug. took about half an hour (a few tries)
to show that it exists in several versions of the compiler. it will take longer
to find out exactly where, and why. i could not care less, so i'll leave this
as an exercise to those who need it.
here is the clue: paranoia in netlib, by kahan. optimizer fails the floting
point tests. done. yes, the bug is seen in g77 3.0.4 as well, given -O.
oz
---
fabricati diem, pvnc.
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2002-03-05 9:41 [9fans] gcc bug qed [plan or side effect] ozan s. yigit
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