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| author | Oleg Endo <olegendo@gcc.gnu.org> | 2016-09-27 12:50:27 +0000 |
|---|---|---|
| committer | Oleg Endo <olegendo@gcc.gnu.org> | 2016-09-27 12:50:27 +0000 |
| commit | 4e7e89e8c9acdbffa6546d5e6056c7b81238c88f (patch) | |
| tree | 677a59b464fc53f71c9ba5c6c32fafb3e71a5433 | |
| parent | f0d355dc5c46b1ae5b28fb8d05adec793c8c4891 (diff) | |
| download | gcc-4e7e89e8c9acdbffa6546d5e6056c7b81238c88f.zip gcc-4e7e89e8c9acdbffa6546d5e6056c7b81238c88f.tar.gz gcc-4e7e89e8c9acdbffa6546d5e6056c7b81238c88f.tar.bz2 | |
re PR target/51244 ([SH] Inefficient conditional branch and code around T bit)
gcc/
PR target/51244
* config/sh/sh.c (sh_rtx_costs): Fix return value of SET of movt and
movrt patterns. Match them before anything else in the SET case.
From-SVN: r240533
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/sh/sh.c | 10 |
2 files changed, 12 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d0ebc8e5..0255b93 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-09-27 Oleg Endo <olegendo@gcc.gnu.org> + + PR target/51244 + * config/sh/sh.c (sh_rtx_costs): Fix return value of SET of movt and + movrt patterns. Match them before anything else in the SET case. + 2016-09-27 Martin Liska <mliska@suse.cz> PR gcov-profile/7970 diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index bfa248d..e5b8088 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -3199,6 +3199,12 @@ sh_rtx_costs (rtx x, machine_mode mode ATTRIBUTE_UNUSED, int outer_code, vector-move, so we have to provide the correct cost in the number of move insns to load/store the reg of the mode in question. */ case SET: + if (sh_movt_set_dest (x) != NULL || sh_movrt_set_dest (x) != NULL) + { + *total = COSTS_N_INSNS (1); + return true; + } + if (register_operand (SET_DEST (x), VOIDmode) && (register_operand (SET_SRC (x), VOIDmode) || satisfies_constraint_Z (SET_SRC (x)))) @@ -3208,10 +3214,6 @@ sh_rtx_costs (rtx x, machine_mode mode ATTRIBUTE_UNUSED, int outer_code, / mov_insn_size (mode, TARGET_SH2A)); return true; } - - if (sh_movt_set_dest (x) != NULL || sh_movrt_set_dest (x) != NULL) - return COSTS_N_INSNS (1); - return false; /* The cost of a mem access is mainly the cost of the address mode. */ |