diff options
Diffstat (limited to 'gcc/lcm.c')
| -rw-r--r-- | gcc/lcm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/lcm.c b/gcc/lcm.c index 7598b34d126..b850984b2f0 100644 --- a/gcc/lcm.c +++ b/gcc/lcm.c @@ -842,6 +842,7 @@ struct bb_info /* These bitmaps are used for the LCM algorithm. */ +#ifdef OPTIMIZE_MODE_SWITCHING static sbitmap *antic; static sbitmap *transp; static sbitmap *comp; @@ -850,12 +851,16 @@ static sbitmap *insert; static struct seginfo * new_seginfo PARAMS ((int, rtx, int, HARD_REG_SET));; static void add_seginfo PARAMS ((struct bb_info *, struct seginfo *)); -static void make_preds_opaque PARAMS ((basic_block, int)); static void reg_dies PARAMS ((rtx, HARD_REG_SET)); static void reg_becomes_live PARAMS ((rtx, rtx, void *)); +static void make_preds_opaque PARAMS ((basic_block, int)); +#endif + +#ifdef OPTIMIZE_MODE_SWITCHING /* This function will allocate a new BBINFO structure, initialized with the FP_MODE, INSN, and basic block BB parameters. */ + static struct seginfo * new_seginfo (mode, insn, bb, regs_live) int mode; @@ -876,6 +881,7 @@ new_seginfo (mode, insn, bb, regs_live) /* Add a seginfo element to the end of a list. HEAD is a pointer to the list beginning. INFO is the structure to be linked in. */ + static void add_seginfo (head, info) struct bb_info *head; @@ -899,6 +905,7 @@ add_seginfo (head, info) denotes that a mode set is to be done on that edge. J is the bit number in the bitmaps that corresponds to the entity that we are currently handling mode-switching for. */ + static void make_preds_opaque (b, j) basic_block b; @@ -917,6 +924,7 @@ make_preds_opaque (b, j) } /* Record in LIVE that register REG died. */ + static void reg_dies (reg, live) rtx reg; @@ -938,6 +946,7 @@ reg_dies (reg, live) /* Record in LIVE that register REG became live. This is called via note_stores. */ + static void reg_becomes_live (reg, setter, live) rtx reg; @@ -961,6 +970,7 @@ reg_becomes_live (reg, setter, live) SET_HARD_REG_BIT (* (HARD_REG_SET *) live, regno); } } +#endif /* Find all insns that need a particular mode setting, and insert the necessary mode switches. */ |