[Bug target/64331] regcprop propagates registers noted as REG_DEAD

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64331

--- Comment #7 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Tue Mar  3 11:25:04 2015
New Revision: 221143

URL: https://gcc.gnu.org/viewcvs?rev=221143&root=gcc&view=rev
Log:
gcc/
    PR target/64331
    * config/avr/avr.c (context.h, tree-pass.h): Include them.
    (avr_pass_data_recompute_notes): New static variable.
    (avr_pass_recompute_notes): New class.
    (avr_register_passes): New static function.
    (avr_option_override): Call it.
gcc/testsuite/
    PR target/64331
    * gcc.target/avr/torture/pr64331.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/avr/torture/pr64331.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/avr.c
    trunk/gcc/testsuite/ChangeLog