public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/64426] New: Unnecessary string temporary for array assignment
@ 2014-12-28 12:35 tkoenig at gcc dot gnu.org
2015-01-01 17:06 ` [Bug fortran/64426] " dominiq at lps dot ens.fr
0 siblings, 1 reply; 2+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2014-12-28 12:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64426
Bug ID: 64426
Summary: Unnecessary string temporary for array assignment
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: tkoenig at gcc dot gnu.org
After the fix for PR 56867, we now create temporaries for
program main
character(len=4) :: a
character(len=4) :: c(3)
c(1) = 'abcd'
c(2) = '1234'
c(3) = 'wxyz'
c(:)(1:2) = c(2)(1:2)
c(:)(1:2) = c(2)(3:4)
if (c(3) .ne. '23yz') call abort
end program main
bug.f90:7:14:
c(:)(1:2) = c(2)(1:2)
1
Warning: Creating array temporary at (1) [-Warray-temporaries]
bug.f90:8:14:
c(:)(1:2) = c(2)(3:4)
1
Warning: Creating array temporary at (1) [-Warray-temporaries]
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug fortran/64426] Unnecessary string temporary for array assignment
2014-12-28 12:35 [Bug fortran/64426] New: Unnecessary string temporary for array assignment tkoenig at gcc dot gnu.org
@ 2015-01-01 17:06 ` dominiq at lps dot ens.fr
0 siblings, 0 replies; 2+ messages in thread
From: dominiq at lps dot ens.fr @ 2015-01-01 17:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64426
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-01-01
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed. Note that the line
if (c(3) .ne. '23yz') call abort
should be replaced with
if (c(3) .ne. '34yz') call abort
I am also refraining to mark the PR as a [5 Regression]: with the above change
the code passes the test with 4.9.2.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-01-01 17:06 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-12-28 12:35 [Bug fortran/64426] New: Unnecessary string temporary for array assignment tkoenig at gcc dot gnu.org
2015-01-01 17:06 ` [Bug fortran/64426] " dominiq at lps dot ens.fr
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).