diff options
Diffstat (limited to 'gcc/lcm.c')
| -rw-r--r-- | gcc/lcm.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/gcc/lcm.c b/gcc/lcm.c index 000e530a2ad..63910050df0 100644 --- a/gcc/lcm.c +++ b/gcc/lcm.c @@ -122,8 +122,8 @@ compute_antinout_edge (sbitmap *antloc, sbitmap *transp, sbitmap *antin, } qin = worklist; - qend = &worklist[n_basic_blocks]; - qlen = n_basic_blocks; + qend = &worklist[n_basic_blocks - NUM_FIXED_BLOCKS]; + qlen = n_basic_blocks - NUM_FIXED_BLOCKS; /* Mark blocks which are predecessors of the exit block so that we can easily identify them below. */ @@ -260,7 +260,7 @@ compute_laterin (struct edge_list *edge_list, sbitmap *earliest, list if they were not already on the list. So the size is bounded by the number of basic blocks. */ qin = qout = worklist - = xmalloc (sizeof (basic_block) * (n_basic_blocks + 1)); + = xmalloc (sizeof (basic_block) * n_basic_blocks); /* Initialize a mapping from each edge to its index. */ for (i = 0; i < num_edges; i++) @@ -294,11 +294,10 @@ compute_laterin (struct edge_list *edge_list, sbitmap *earliest, } /* Note that we do not use the last allocated element for our queue, - as EXIT_BLOCK is never inserted into it. In fact the above allocation - of n_basic_blocks + 1 elements is not necessary. */ + as EXIT_BLOCK is never inserted into it. */ qin = worklist; - qend = &worklist[n_basic_blocks]; - qlen = n_basic_blocks; + qend = &worklist[n_basic_blocks - NUM_FIXED_BLOCKS]; + qlen = n_basic_blocks - NUM_FIXED_BLOCKS; /* Iterate until the worklist is empty. */ while (qlen) @@ -485,7 +484,8 @@ compute_available (sbitmap *avloc, sbitmap *kill, sbitmap *avout, /* Allocate a worklist array/queue. Entries are only added to the list if they were not already on the list. So the size is bounded by the number of basic blocks. */ - qin = qout = worklist = xmalloc (sizeof (basic_block) * n_basic_blocks); + qin = qout = worklist = + xmalloc (sizeof (basic_block) * (n_basic_blocks - NUM_FIXED_BLOCKS)); /* We want a maximal solution. */ sbitmap_vector_ones (avout, last_basic_block); @@ -499,8 +499,8 @@ compute_available (sbitmap *avloc, sbitmap *kill, sbitmap *avout, } qin = worklist; - qend = &worklist[n_basic_blocks]; - qlen = n_basic_blocks; + qend = &worklist[n_basic_blocks - NUM_FIXED_BLOCKS]; + qlen = n_basic_blocks - NUM_FIXED_BLOCKS; /* Mark blocks which are successors of the entry block so that we can easily identify them below. */ |