diff options
Diffstat (limited to 'gcc/ssa-ccp.c')
| -rw-r--r-- | gcc/ssa-ccp.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/gcc/ssa-ccp.c b/gcc/ssa-ccp.c index 6417276..85d5b50 100644 --- a/gcc/ssa-ccp.c +++ b/gcc/ssa-ccp.c @@ -740,6 +740,7 @@ optimize_unexecutable_edges (edges, executable_edges) sbitmap executable_edges; { int i; + basic_block bb; for (i = 0; i < NUM_EDGES (edges); i++) { @@ -797,9 +798,8 @@ optimize_unexecutable_edges (edges, executable_edges) In cases B & C we are removing uses of registers, so make sure to note those changes for the DF analyzer. */ - for (i = 0; i < n_basic_blocks; i++) + FOR_EACH_BB (bb) { - basic_block bb = BASIC_BLOCK (i); rtx insn = bb->end; edge edge = bb->succ; @@ -929,7 +929,7 @@ ssa_ccp_substitute_constants () static void ssa_ccp_df_delete_unreachable_insns () { - int i; + basic_block b; /* Use the CFG to find all the reachable blocks. */ find_unreachable_blocks (); @@ -937,10 +937,8 @@ ssa_ccp_df_delete_unreachable_insns () /* Now we know what blocks are not reachable. Mark all the insns in those blocks as deleted for the DF analyzer. We'll let the normal flow code actually remove the unreachable blocks. */ - for (i = n_basic_blocks - 1; i >= 0; --i) + FOR_EACH_BB_REVERSE (b) { - basic_block b = BASIC_BLOCK (i); - if (!(b->flags & BB_REACHABLE)) { rtx start = b->head; |