Commit 43eec2cc authored by Matthias Braun's avatar Matthias Braun
Browse files

constnes and comment improvements for irheights

[r27711]
parent 6094bf5b
......@@ -34,12 +34,13 @@ typedef struct _heights_t heights_t;
/**
* Get the height of a node inside a basic block.
* The height of the node is the maximal number of edges between a sink node in that block and the node itself (plus 1).
* The height of the node is the maximal number of edges between a sink node in
* that block and the node itself (plus 1).
* @param h The heights object.
* @param irn The node.
* @return The height of the node.
*/
FIRM_API unsigned get_irn_height(heights_t *h, const ir_node *irn);
FIRM_API unsigned get_irn_height(const heights_t *h, const ir_node *irn);
/**
* Check, if a certain node is reachable according to data dependence edges from another node.
......
......@@ -84,7 +84,7 @@ static void height_dump_cb(void *data, FILE *f, const ir_node *irn)
* @param tgt The node we try to reach.
* @return 1, one of tgt can be reached from curr, 0 else.
*/
static bool search(heights_t *h, const ir_node *curr, const ir_node *tgt)
static bool search(const heights_t *h, const ir_node *curr, const ir_node *tgt)
{
irn_height_t *h_curr;
irn_height_t *h_tgt;
......@@ -124,9 +124,11 @@ static bool search(heights_t *h, const ir_node *curr, const ir_node *tgt)
}
/**
* Check, if one node can be reached from another one, according to data dependence.
* Check, if one node can be reached from another one, according to data
* dependence.
*/
int heights_reachable_in_block(heights_t *h, const ir_node *n, const ir_node *m)
int heights_reachable_in_block(heights_t *h, const ir_node *n,
const ir_node *m)
{
int res = 0;
irn_height_t *hn = phase_get_irn_data(&h->phase, n);
......@@ -218,9 +220,9 @@ static void compute_heights_in_block_walker(ir_node *block, void *data)
compute_heights_in_block(block, h);
}
unsigned get_irn_height(heights_t *heights, const ir_node *irn)
unsigned get_irn_height(const heights_t *heights, const ir_node *irn)
{
irn_height_t *h = phase_get_irn_data(&heights->phase, irn);
const irn_height_t *h = phase_get_irn_data(&heights->phase, irn);
assert(h && "No height information for node");
return h->height;
}
......
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