[Bug target/77326] [avr] Invalid optimization using varargs and a weak function

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77326

--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Wed Sep 21 09:17:32 2016
New Revision: 240306

URL: https://gcc.gnu.org/viewcvs?rev=240306&root=gcc&view=rev
Log:
gcc/
        PR target/77326
        * config/avr/avr.c (avr_notice_update_cc) [CC_NONE]: If insn
        touches some regs mentioned in cc_status, do CC_STATUS_INIT.
gcc/testsuite/
        PR target/77326
        * gcc.target/avr/torture/pr77326.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/avr/torture/pr77326.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/avr.c
    trunk/gcc/testsuite/ChangeLog