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[Bug middle-end/32302] [4.2, 4.3 Regression] Incorrect result with -O2
- From: "burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Jun 2007 15:03:55 -0000
- Subject: [Bug middle-end/32302] [4.2, 4.3 Regression] Incorrect result with -O2
- References: <bug-32302-10129@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from burnus at gcc dot gnu dot org 2007-06-12 15:03 -------
Works with 4.1.3 20070521.
Fails with 4.2.1 20070604.
Fails with 4.3.0 20070612. (On x86_64 Linux)
Result is ok ("1.0 1.0") for real(4), but not for real(8) ("0.25 0.25").
-O1 is also ok, but not -O2.
I used gfortran -DVECLEN=1 -DDP -O2
(and also without -DDP and with -O1.)
Presumably a middle-end problem.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|fortran |middle-end
Ever Confirmed|0 |1
GCC host triplet|powerpc-apple-darwin8.9.0 |
Keywords| |wrong-code
Known to fail| |4.2.0 4.3.0
Known to work| |4.1.3
Last reconfirmed|0000-00-00 00:00:00 |2007-06-12 15:03:55
date| |
Summary|gfortran - incorrect result |[4.2, 4.3 Regression]
|with -O3 |Incorrect result with -O2
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32302