On 12/01/14 16:30, Oleg Endo wrote:
On Mon, 2014-12-01 at 10:38 -0700, Jeff Law wrote:
On 11/27/14 18:44, Segher Boessenkool wrote:
Currently reg_dead_at_p returns 0 for registers that are set but never
used. This patch repairs that oversight. This fixes PR59278.
2014-11-27 Segher Boessenkool <seg...@kernel.crashing.org>
gcc/
PR rtl-optimization/59278
combine (reg_dead_at_p): Consider REG_UNUSED notes.
OK with a testcase. ISTM you can just create an SH specific testcase
from the code in the BZ. Pre-approved with suitable testcase.
jeff
Attached is the SH test case for the PR, which passes with the combine
patch applied for make -k check-gcc RUNTESTFLAGS="sh.exp=pr59278.c
--target_board=sh-sim\{-m4/-ml,-m4/-mb,-m2a/-mb,-m2/-mb}"
Cheers,
Oleg
testsuite/ChangeLog:
* gcc.target/sh/pr59278.c: New.
OK, please commit after Segher or together as a unified patch+testcase.
jeff
