diff options
| author | Oleg Endo <olegendo@gcc.gnu.org> | 2012-05-06 22:38:57 +0000 |
|---|---|---|
| committer | Oleg Endo <olegendo@gcc.gnu.org> | 2012-05-06 22:38:57 +0000 |
| commit | 0345d1dd2aa75e7af92059cb6bb4a0c0e0570d0b (patch) | |
| tree | 3ca1d4518bb8bfe8bf9ddee038c0f0f9d445f68d /gcc | |
| parent | 69f088a73a1924110328eac91bcbd8a98f64f62a (diff) | |
| download | gcc-0345d1dd2aa75e7af92059cb6bb4a0c0e0570d0b.zip gcc-0345d1dd2aa75e7af92059cb6bb4a0c0e0570d0b.tar.gz gcc-0345d1dd2aa75e7af92059cb6bb4a0c0e0570d0b.tar.bz2 | |
re PR target/53250 ([SH] ICE: in change_address_1, at emit-rtl.c:2018)
PR target/53250
* config/sh/sh.c (sh_rtx_costs): Handle SET.
From-SVN: r187218
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/sh/sh.c | 21 |
2 files changed, 26 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index eab0576..aa909e3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-05-07 Oleg Endo <olegendo@gcc.gnu.org> + + PR target/53250 + * config/sh/sh.c (sh_rtx_costs): Handle SET. + 2012-05-06 Uros Bizjak <ubizjak@gmail.com> PR target/53227 diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index d863474..08ee5b4 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -2999,6 +2999,27 @@ sh_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED, { switch (code) { + /* The lower-subreg pass decides whether to split multi-word regs + into individual regs by looking at the cost for a SET of certain + modes with the following patterns: + (set (reg) (reg)) + (set (reg) (const_int 0)) + On machines that support vector-move operations a multi-word move + is the same cost as individual reg move. On SH there is no + 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 (register_operand (SET_DEST (x), VOIDmode) + && (register_operand (SET_SRC (x), VOIDmode) + || satisfies_constraint_Z (SET_SRC (x)))) + { + const enum machine_mode mode = GET_MODE (SET_DEST (x)); + *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) + / mov_insn_size (mode, TARGET_SH2A)); + return true; + } + return false; + case CONST_INT: if (TARGET_SHMEDIA) { |