diff options
Diffstat (limited to 'gcc/config/sh/sh.c')
| -rw-r--r-- | gcc/config/sh/sh.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index 135648f0051..a7eabba3090 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -6985,7 +6985,18 @@ sh_adjust_cost (insn, link, dep_insn, cost) { rtx reg; - if (GET_CODE(insn) == CALL_INSN) + if (TARGET_SHMEDIA) + { + /* On SHmedia, if the dependence is an anti-dependence or + output-dependence, there is no cost. */ + if (REG_NOTE_KIND (link) != 0) + cost = 0; + + if (get_attr_is_mac_media (insn) + && get_attr_is_mac_media (dep_insn)) + cost = 1; + } + else if (GET_CODE(insn) == CALL_INSN) { /* The only input for a call that is timing-critical is the function's address. */ |
