diff options
Diffstat (limited to 'gcc/config/sh/sh.c')
| -rw-r--r-- | gcc/config/sh/sh.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index fa39c743bca..53f8b1227e2 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -1019,6 +1019,16 @@ shiftcosts (x) { int value; + if (GET_MODE_SIZE (GET_MODE (x)) > UNITS_PER_WORD) + { + if (GET_MODE (x) == DImode + && GET_CODE (XEXP (x, 1)) == CONST_INT + && INTVAL (XEXP (x, 1)) == 1) + return 2; + + /* Everything else is invalid, because there is no pattern for it. */ + return 10000; + } /* If shift by a non constant, then this will be expensive. */ if (GET_CODE (XEXP (x, 1)) != CONST_INT) return SH_DYNAMIC_SHIFT_COST; |