[Bug target/49263] SH Target: underutilized "TST #imm, R0" instruction

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49263

--- Comment #26 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Author: olegendo
Date: Mon Jan 26 23:56:05 2015
New Revision: 220144

URL: https://gcc.gnu.org/viewcvs?rev=220144&root=gcc&view=rev
Log:
gcc/
    PR target/49263
    * config/sh/sh.c (sh_split_treg_set_expr): Invoke emit_insn before
    remove_insn.
    * config/sh/sh.md (tstsi_t): Don't try to optimize constant with right
    shifts if it already fits into K08.

gcc/testsuite/
    PR target/49263
    * gcc.target/sh/pr49263-4.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/sh/pr49263-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sh/sh.c
    trunk/gcc/config/sh/sh.md
    trunk/gcc/testsuite/ChangeLog