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[Bug fortran/24406] EQUIVALENCE broken in 32-bit code with optimization -O2
- From: "kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Oct 2005 18:00:58 -0000
- Subject: [Bug fortran/24406] EQUIVALENCE broken in 32-bit code with optimization -O2
- References: <bug-24406-10567@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from kargl at gcc dot gnu dot org 2005-10-17 18:00 -------
The code is illegal, and therefore gfortran can do anything
it wants (including start WW III).
(1) rteps is never defined, so it can't be reference in the IF
statement.
(2) Even if rteps was defined prior to the assignments of irt(1) and
irt(2), rteps would become undefined via 14.7.6(1) of the standard.
(3) The use of BOZ literal constants here is nonstandard although
gfortran may permit its use in this manner (I haven't checked).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24406