diff options
Diffstat (limited to 'gcc/local-alloc.c')
| -rw-r--r-- | gcc/local-alloc.c | 38 |
1 files changed, 17 insertions, 21 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index cd216f96d0f..860856c2ae0 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -336,8 +336,9 @@ alloc_qty (regno, mode, size, birth) int local_alloc () { - int b, i; + int i; int max_qty; + basic_block b; /* We need to keep track of whether or not we recorded a LABEL_REF so that we know if the jump optimizer needs to be rerun. */ @@ -394,7 +395,7 @@ local_alloc () /* Allocate each block's local registers, block by block. */ - for (b = 0; b < n_basic_blocks; b++) + FOR_ALL_BB (b) { /* NEXT_QTY indicates which elements of the `qty_...' vectors might need to be initialized because they were used @@ -426,7 +427,7 @@ local_alloc () next_qty = 0; - block_alloc (b); + block_alloc (b->sindex); } free (qty); @@ -815,7 +816,7 @@ static void update_equiv_regs () { rtx insn; - int block; + basic_block bb; int loop_depth; regset_head cleared_regs; int clear_regnos = 0; @@ -828,9 +829,8 @@ update_equiv_regs () /* Scan the insns and find which registers have equivalences. Do this in a separate scan of the insns because (due to -fcse-follow-jumps) a register can be set below its use. */ - for (block = 0; block < n_basic_blocks; block++) + FOR_ALL_BB (bb) { - basic_block bb = BASIC_BLOCK (block); loop_depth = bb->loop_depth; for (insn = bb->head; insn != NEXT_INSN (bb->end); insn = NEXT_INSN (insn)) @@ -1044,10 +1044,8 @@ update_equiv_regs () within the same loop (or in an inner loop), then move the register initialization just before the use, so that they are in the same basic block. */ - for (block = n_basic_blocks - 1; block >= 0; block--) + FOR_ALL_BB_REVERSE (bb) { - basic_block bb = BASIC_BLOCK (block); - loop_depth = bb->loop_depth; for (insn = bb->end; insn != PREV_INSN (bb->head); insn = PREV_INSN (insn)) { @@ -1139,12 +1137,12 @@ update_equiv_regs () XEXP (reg_equiv[regno].init_insns, 0) = new_insn; - REG_BASIC_BLOCK (regno) = block >= 0 ? block : 0; + REG_BASIC_BLOCK (regno) = bb->sindex; REG_N_CALLS_CROSSED (regno) = 0; REG_LIVE_LENGTH (regno) = 2; - if (block >= 0 && insn == BLOCK_HEAD (block)) - BLOCK_HEAD (block) = PREV_INSN (insn); + if (insn == bb->head) + bb->head = PREV_INSN (insn); /* Remember to clear REGNO from all basic block's live info. */ @@ -1159,24 +1157,22 @@ update_equiv_regs () /* Clear all dead REGNOs from all basic block's live info. */ if (clear_regnos) { - int j, l; + int j; if (clear_regnos > 8) { - for (l = 0; l < n_basic_blocks; l++) + FOR_ALL_BB (bb) { - AND_COMPL_REG_SET (BASIC_BLOCK (l)->global_live_at_start, - &cleared_regs); - AND_COMPL_REG_SET (BASIC_BLOCK (l)->global_live_at_end, - &cleared_regs); + AND_COMPL_REG_SET (bb->global_live_at_start, &cleared_regs); + AND_COMPL_REG_SET (bb->global_live_at_end, &cleared_regs); } } else EXECUTE_IF_SET_IN_REG_SET (&cleared_regs, 0, j, { - for (l = 0; l < n_basic_blocks; l++) + FOR_ALL_BB (bb) { - CLEAR_REGNO_REG_SET (BASIC_BLOCK (l)->global_live_at_start, j); - CLEAR_REGNO_REG_SET (BASIC_BLOCK (l)->global_live_at_end, j); + CLEAR_REGNO_REG_SET (bb->global_live_at_start, j); + CLEAR_REGNO_REG_SET (bb->global_live_at_end, j); } }); } |