diff options
Diffstat (limited to 'gcc/expr.h')
| -rw-r--r-- | gcc/expr.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/expr.h b/gcc/expr.h index ec6dd80243b..31c43c087d2 100644 --- a/gcc/expr.h +++ b/gcc/expr.h @@ -75,10 +75,10 @@ enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM, #endif /* If a clear memory operation would take CLEAR_RATIO or more simple - move-instruction sequences, we will do a clrmem or libcall instead. */ + move-instruction sequences, we will do a setmem or libcall instead. */ #ifndef CLEAR_RATIO -#if defined (HAVE_clrmemqi) || defined (HAVE_clrmemhi) || defined (HAVE_clrmemsi) || defined (HAVE_clrmemdi) || defined (HAVE_clrmemti) +#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti) #define CLEAR_RATIO 2 #else /* If we are optimizing for space, cut down the default clear ratio. */ @@ -423,6 +423,9 @@ extern void use_group_regs (rtx *, rtx); If OBJECT has BLKmode, SIZE is its length in bytes. */ extern rtx clear_storage (rtx, rtx, enum block_op_methods); +/* Expand a setmem pattern; return true if successful. */ +extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int); + /* Determine whether the LEN bytes can be moved by using several move instructions. Return nonzero if a call to move_by_pieces should succeed. */ |