Correct a subtle bug in the ia32 backend: Sub(x, x) triggered that the Neg+Add trick...

[libfirm] / ir / be / bechordal_draw.c

diff --git a/ir/be/bechordal_draw.c b/ir/be/bechordal_draw.c
index f349a76..30128de 100644 (file)
--- a/ir/be/bechordal_draw.c
+++ b/ir/be/bechordal_draw.c
@@ -52,27 +52,32 @@ typedef struct {
 #define decl_self(type, from) \
   type *self = (type *) from
 
-static void set_color(plotter_t *_self, const color_t *color) {
+static void set_color(plotter_t *_self, const color_t *color)
+{
        decl_self(base_plotter_t, _self);
        self->color = color;
 }
 
-static const color_t *get_color(const plotter_t *_self) {
+static const color_t *get_color(const plotter_t *_self)
+{
        decl_self(const base_plotter_t, _self);
        return self->color;
 }
 
-static void set_width(plotter_t *_self, int width) {
+static void set_width(plotter_t *_self, int width)
+{
        decl_self(base_plotter_t, _self);
        self->width = width;
 }
 
-static int get_width(const plotter_t *_self) {
+static int get_width(const plotter_t *_self)
+{
        decl_self(const base_plotter_t, _self);
        return self->width;
 }
 
-static void plotter_default_free(plotter_t *self) {
+static void plotter_default_free(plotter_t *self)
+{
        (void) self;
 }
 
@@ -263,10 +268,9 @@ static void block_dims_walker(ir_node *block, void *data)
        draw_chordal_env_t        *env  = data;
        struct list_head          *head = get_block_border_head(env->chordal_env, block);
        const draw_chordal_opts_t *opts = env->opts;
-       struct block_dims         *dims = obstack_alloc(&env->obst, sizeof(*dims));
+       struct block_dims         *dims = OALLOCZ(&env->obst, struct block_dims);
        border_t                  *b;
 
-       memset(dims, 0, sizeof(*dims));
        dims->min_step = INT_MAX;
 
        list_for_each_entry_reverse(border_t, b, head, list) {
@@ -459,7 +463,8 @@ static void draw(draw_chordal_env_t *env, const rect_t *start_box)
        p->vtab->finish(p);
 }
 
-void draw_interval_tree(const draw_chordal_opts_t *opts, const be_chordal_env_t *chordal_env, plotter_t *plotter) {
+void draw_interval_tree(const draw_chordal_opts_t *opts, const be_chordal_env_t *chordal_env, plotter_t *plotter)
+{
        draw_chordal_env_t env;
        struct block_dims  *start_dims;
        ir_node            *start_block = get_irg_start_block(chordal_env->irg);