bechordal: Remove the write-only attribute colors_n from struct be_chordal_alloc_env_t.

diff --git a/ir/be/bechordal.c b/ir/be/bechordal.c
index 0e6ecf2..98eda80 100644 (file)
--- a/ir/be/bechordal.c
+++ b/ir/be/bechordal.c
@@ -73,7 +73,6 @@ typedef struct be_chordal_alloc_env_t {
        bitset_t *live;        /**< A liveness bitset. */
        bitset_t *tmp_colors;  /**< An auxiliary bitset which is as long as the number of colors in the class. */
        bitset_t *colors;      /**< The color mask. */
-       int colors_n;          /**< The number of colors. */
 } be_chordal_alloc_env_t;
 
 static int get_next_free_reg(const be_chordal_alloc_env_t *alloc_env, bitset_t *colors)
@@ -476,7 +475,6 @@ static void be_ra_chordal_color(be_chordal_env_t *const chordal_env)
        assure_doms(irg);
 
        env.chordal_env   = chordal_env;
-       env.colors_n      = colors_n;
        env.colors        = bitset_alloca(colors_n);
        env.tmp_colors    = bitset_alloca(colors_n);
        env.pre_colored   = pset_new_ptr_default();