X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbechordal_draw.c;h=e9d785392e877fa27dc97510dbe41e2ac52b4849;hb=36fc5bb2784078aa07e1fa643a5acba7025fe98f;hp=cf752ab550899a366add8ba690437ff37792a823;hpb=4008ad715ddd7bbfeffa5f7b579f03b034a9fb9a;p=libfirm

diff --git a/ir/be/bechordal_draw.c b/ir/be/bechordal_draw.c
index cf752ab55..e9d785392 100644
--- a/ir/be/bechordal_draw.c
+++ b/ir/be/bechordal_draw.c
@@ -1,17 +1,15 @@
+/*
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
+ */
 
 /**
- * @file   bechordal_draw.c
- * @date   12.05.2005
- * @author Sebastian Hack
- *
- * Paint chordal graphs.
- *
- * Copyright (C) 2005 Universitaet Karlsruhe
- * Released under the GPL
+ * @file
+ * @brief       Paint chordal graphs.
+ * @author      Sebastian Hack
+ * @date        12.05.2005
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include <limits.h>
 
@@ -21,17 +19,20 @@
 #include "irgwalk.h"
 #include "irprintf.h"
 #include "iredges_t.h"
+#include "util.h"
 
+#include "bearch.h"
 #include "belive_t.h"
 #include "bechordal_t.h"
-#include "besched_t.h"
+#include "besched.h"
 #include "bechordal_draw.h"
+#include "beirg.h"
 
 typedef struct {
-  be_chordal_env_t *env;
-  plotter_t inh;
-  const color_t *color;
-  int width;
+	be_chordal_env_t *env;
+	plotter_t inh;
+	const color_t *color;
+	int width;
 } base_plotter_t;
 
 #define decl_self(type, from) \
@@ -39,36 +40,37 @@ typedef struct {
 
 static void set_color(plotter_t *_self, const color_t *color)
 {
-  decl_self(base_plotter_t, _self);
-  self->color = color;
+	decl_self(base_plotter_t, _self);
+	self->color = color;
 }
 
 static const color_t *get_color(const plotter_t *_self)
 {
-  decl_self(const base_plotter_t, _self);
-  return self->color;
+	decl_self(const base_plotter_t, _self);
+	return self->color;
 }
 
 static void set_width(plotter_t *_self, int width)
 {
-  decl_self(base_plotter_t, _self);
-  self->width = width;
+	decl_self(base_plotter_t, _self);
+	self->width = width;
 }
 
 static int get_width(const plotter_t *_self)
 {
-  decl_self(const base_plotter_t, _self);
-  return self->width;
+	decl_self(const base_plotter_t, _self);
+	return self->width;
 }
 
 static void plotter_default_free(plotter_t *self)
 {
+	(void) self;
 }
 
 typedef struct {
-  base_plotter_t inh;
-  const char *filename;
-  FILE *f;
+	base_plotter_t inh;
+	const char     *filename;
+	FILE           *f;
 } ps_plotter_t;
 
 
@@ -83,403 +85,308 @@ typedef struct {
 
 static void ps_begin(plotter_t *_self, const rect_t *vis)
 {
-  FILE *f;
-  decl_self(ps_plotter_t, _self);
-
-  f = self->f = fopen(self->filename, "wt");
-  fprintf(f, "%%!PS-Adobe-2.0\n");
-  fprintf(f, "%%%%BoundingBox: %d %d %d %d\n", vis->x, vis->y, vis->w, vis->h);
-#if 0
-  fprintf(f, "/mainfont /Courier findfont %f scalefont def\n", 10.0);
-  fprintf(f, "mainfont setfont\n");
-#endif
+	FILE *f;
+	decl_self(ps_plotter_t, _self);
+
+	f = self->f = fopen(self->filename, "wt");
+	fprintf(f, "%%!PS-Adobe-2.0\n");
+	fprintf(f, "%%%%BoundingBox: %d %d %d %d\n", vis->x, vis->y, vis->w, vis->h);
 }
 
 static void ps_setcolor(plotter_t *_self, const color_t *color)
 {
-  decl_self(ps_plotter_t, _self);
-  set_color(_self, color);
+	decl_self(ps_plotter_t, _self);
+	set_color(_self, color);
 
-  fprintf(self->f, "%.2f %.2f %.2f setrgbcolor\n",
-      color->r, color->g, color->b);
+	fprintf(self->f, "%.2f %.2f %.2f setrgbcolor\n",
+		color->r, color->g, color->b);
 }
 
 static void ps_line(plotter_t *_self, int x1, int y1, int x2, int y2)
 {
-  decl_self(ps_plotter_t, _self);
+	decl_self(ps_plotter_t, _self);
 
-  fprintf(self->f, "%d %d moveto\n", x1, y1);
-  fprintf(self->f, "%d %d lineto\n", x2, y2);
-  fprintf(self->f, "stroke\n");
+	fprintf(self->f, "%d %d moveto\n", x1, y1);
+	fprintf(self->f, "%d %d lineto\n", x2, y2);
+	fprintf(self->f, "stroke\n");
 }
 
 static void ps_box(plotter_t *_self, const rect_t *rect)
 {
-  decl_self(ps_plotter_t, _self);
+	decl_self(ps_plotter_t, _self);
 
-  fprintf(self->f, "%d %d %d %d rectstroke\n",
-      rect->x, rect->y, rect->w, rect->h);
+	fprintf(self->f, "%d %d %d %d rectstroke\n",
+		rect->x, rect->y, rect->w, rect->h);
 }
 
-void ps_text(plotter_t *_self, int x, int y, const char *str)
+static void ps_text(plotter_t *_self, int x, int y, const char *str)
 {
-  decl_self(ps_plotter_t, _self);
+	decl_self(ps_plotter_t, _self);
 
-  fprintf(self->f, "%d %d moveto\n", x, y);
-  fprintf(self->f, "(%s) show\n", str);
+	fprintf(self->f, "%d %d moveto\n", x, y);
+	fprintf(self->f, "(%s) show\n", str);
 }
 
 static void ps_finish(plotter_t *_self)
 {
-  decl_self(ps_plotter_t, _self);
-  fclose(self->f);
+	decl_self(ps_plotter_t, _self);
+	fclose(self->f);
 }
 
-const plotter_if_t ps_plotter_vtab = {
-  ps_begin,
-  ps_setcolor,
-  get_color,
-  set_width,
-  get_width,
-  ps_line,
-  ps_box,
-  ps_text,
-  ps_finish,
-  plotter_default_free
+static const plotter_if_t ps_plotter_vtab = {
+	ps_begin,
+	ps_setcolor,
+	get_color,
+	set_width,
+	get_width,
+	ps_line,
+	ps_box,
+	ps_text,
+	ps_finish,
+	plotter_default_free
 };
 
 plotter_t *new_plotter_ps(const char *filename)
 {
-  ps_plotter_t *ps_plotter = xmalloc(sizeof(*ps_plotter));
-  plotter_t *p = (plotter_t *) ps_plotter;
-
-  ps_plotter->filename = filename;
-  p->vtab = &ps_plotter_vtab;
-  return p;
-}
-
-/*
-   _____ _ _     _____  ____  _       _   _
-  |_   _(_) | __|__  / |  _ \| | ___ | |_| |_ ___ _ __
-    | | | | |/ /  / /  | |_) | |/ _ \| __| __/ _ \ '__|
-    | | | |   <  / /_  |  __/| | (_) | |_| ||  __/ |
-    |_| |_|_|\_\/____| |_|   |_|\___/ \__|\__\___|_|
-
-*/
-
-#if 0
-typedef struct {
-  base_plotter_t inh;
-  const char *filename;
-  FILE *f;
-} tikz_plotter_t;
-
-static void tikz_begin(plotter_t *_self, const rect_t *vis)
-{
-  FILE *f;
-  decl_self(tikz_plotter_t, _self);
-
-  f = self->f = fopen(self->filename, "wt");
-  fprintf(f, "\\begin{tikzpicture}\n");
-}
-
-static void tikz_setcolor(plotter_t *_self, const color_t *color)
-{
-  set_color(_self, color);
-}
-
-static void tikz_line(plotter_t *_self, int x1, int y1, int x2, int y2)
-{
-  decl_self(tikz_plotter_t, _self);
-  fprintf(self->f, "\t\\draw (%d,%d) -- (%d,%d);\n", x1, y1, x2, y2);
-}
-
-static void tikz_box(plotter_t *_self, const rect_t *rect)
-{
-  decl_self(tikz_plotter_t, _self);
+	ps_plotter_t *ps_plotter = XMALLOC(ps_plotter_t);
+	plotter_t *p = (plotter_t *) ps_plotter;
 
-  fprintf(self->f, "\t\\draw (%d,%d) rectangle (%d, %d)\n",
-	  rect->x, rect->y, rect->x + rect->w, rect->y + rect->h);
+	ps_plotter->filename = filename;
+	p->vtab = &ps_plotter_vtab;
+	return p;
 }
 
-void tikz_text(plotter_t *_self, int x, int y, const char *str)
-{
-  decl_self(tikz_plotter_t, _self);
-  fprintf(self->f, "\t\\draw (%d,%d) node {%s};\n", x, y, str);
-}
-
-static void tikz_finish(plotter_t *_self)
-{
-  decl_self(tikz_plotter_t, _self);
-  fclose(self->f);
-}
-#endif
-
-
 extern void plotter_free(plotter_t *self)
 {
-  self->vtab->free(self);
-  free(self);
+	self->vtab->free(self);
+	free(self);
 }
 
 const draw_chordal_opts_t draw_chordal_def_opts = {
-  10, 10, 30, 8, 10, 10
+	10, 10, 30, 8, 10, 10
 };
 
-typedef struct _draw_chordal_env_t {
-  const be_chordal_env_t *chordal_env;
-  const arch_env_t *arch_env;
-  const arch_register_class_t *cls;
-  pmap *block_dims;
-  plotter_t *plotter;
-  const draw_chordal_opts_t *opts;
-
-  struct obstack obst;
-  int max_color;
+typedef struct draw_chordal_env_t {
+	const be_chordal_env_t      *chordal_env;
+	const arch_register_class_t *cls;
+	pmap                        *block_dims;
+	plotter_t                   *plotter;
+	const draw_chordal_opts_t   *opts;
+	struct obstack              obst;
+	int                         max_color;
 } draw_chordal_env_t;
 
 struct block_dims {
-  int max_step;
-  int min_step;
-  int max_color;
-  rect_t box;
-  rect_t subtree_box;
+	unsigned max_step;
+	int      min_step;
+	int      max_color;
+	rect_t   box;
+	rect_t   subtree_box;
 };
 
-#undef min
-static INLINE int min(int a, int b)
-{
-  return a < b ? a : b;
-}
+#define doz(a, b) MAX((a) - (b), 0)
 
-#undef max
-static INLINE int max(int a, int b)
+static void block_dims_walker(ir_node *block, void *data)
 {
-  return a > b ? a : b;
-}
+	draw_chordal_env_t        *env  = (draw_chordal_env_t*)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 = OALLOCZ(&env->obst, struct block_dims);
 
-#define doz(a, b) max((a) - (b), 0)
+	dims->min_step = INT_MAX;
 
-static void block_dims_walker(ir_node *block, void *data)
-{
-  draw_chordal_env_t *env = data;
-  border_t *b;
-	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));
-
-  memset(dims, 0, sizeof(*dims));
-  dims->min_step = INT_MAX;
-
-	list_for_each_entry_reverse(border_t, b, head, list) {
-    ir_node *irn = b->irn;
-    const arch_register_t *reg = arch_get_irn_register(env->arch_env, irn);
-    int col = arch_register_get_index(reg);
-
-    dims->max_step = max(dims->max_step, b->step);
-    dims->max_color = max(dims->max_color, col);
-    env->max_color = max(env->max_color, col);
-  }
-
-  dims->min_step = 1;
-
-#if 1
-  dims->box.w = (dims->max_color + 2) * opts->h_inter_gap;
-  dims->box.h = dims->max_step * opts->v_inter_gap;
-#else
-  dims->box.w = dims->box.h = 10;
-#endif
-
-  pmap_insert(env->block_dims, block, dims);
+	foreach_border_head(head, b) {
+		ir_node               *irn = b->irn;
+		const arch_register_t *reg = arch_get_irn_register(irn);
+		int                    col = reg->index;
+
+		dims->max_step  = MAX(dims->max_step, b->step);
+		dims->max_color = MAX(dims->max_color, col);
+		env->max_color  = MAX(env->max_color, col);
+	}
+
+	dims->min_step = 1;
+
+	dims->box.w = (dims->max_color + 2) * opts->h_inter_gap;
+	dims->box.h = dims->max_step * opts->v_inter_gap;
+
+	pmap_insert(env->block_dims, block, dims);
 }
 
 static void layout(const draw_chordal_env_t *env, ir_node *bl, int x)
 {
-  const draw_chordal_opts_t *opts = env->opts;
-  struct block_dims *dims = pmap_get(env->block_dims, bl);
-  ir_node *sub;
-  rect_t *rect = &dims->subtree_box;
-  int h_space = 0, v_space = 0;
+	const draw_chordal_opts_t *opts   = env->opts;
+	struct block_dims         *dims   = pmap_get(struct block_dims, env->block_dims, bl);
+	rect_t                    *rect   = &dims->subtree_box;
+	int                       h_space = 0;
+	int                       v_space = 0;
+	ir_node                   *sub;
 
-  memset(rect, 0, sizeof(*rect));
-  rect->x = x;
+	memset(rect, 0, sizeof(*rect));
+	rect->x = x;
 
-  dominates_for_each(bl, sub) {
-    struct block_dims *bl_dim = pmap_get(env->block_dims, sub);
+	dominates_for_each(bl, sub) {
+		struct block_dims *bl_dim = pmap_get(struct block_dims, env->block_dims, sub);
 
-    layout(env, sub, rect->x + rect->w);
+		layout(env, sub, rect->x + rect->w);
 
-    rect->w += h_space + bl_dim->subtree_box.w;
-    rect->h = max(rect->h, bl_dim->subtree_box.h);
+		rect->w += h_space + bl_dim->subtree_box.w;
+		rect->h  = MAX(rect->h, bl_dim->subtree_box.h);
 
-    h_space = opts->h_gap;
-    v_space = opts->v_gap;
-  }
+		h_space = opts->h_gap;
+		v_space = opts->v_gap;
+	}
 
-  rect->w = max(rect->w, dims->box.w + opts->h_gap);
+	rect->w = MAX(rect->w, dims->box.w + opts->h_gap);
 
-  dims->box.x = x + doz(rect->w, dims->box.w) / 2;
-  dims->box.y = rect->h + v_space;
+	dims->box.x = x + doz(rect->w, dims->box.w) / 2;
+	dims->box.y = rect->h + v_space;
 
-  rect->h += dims->box.h + v_space;
+	rect->h = dims->box.y + dims->box.h;
 }
 
 static void set_y(const draw_chordal_env_t *env, ir_node *bl, int up)
 {
-  const draw_chordal_opts_t *opts = env->opts;
-  struct block_dims *dims = pmap_get(env->block_dims, bl);
-  int max_height = dims->subtree_box.h - dims->box.h - opts->v_gap;
-  ir_node *sub;
+	const draw_chordal_opts_t *opts      = env->opts;
+	struct block_dims         *dims      = pmap_get(struct block_dims, env->block_dims, bl);
+	int                       max_height = dims->subtree_box.h - dims->box.h - opts->v_gap;
+	ir_node                   *sub;
 
-  dominates_for_each(bl, sub) {
-    struct block_dims *bl_dim = pmap_get(env->block_dims, sub);
-    int height_diff = max_height - bl_dim->subtree_box.h;
+	dominates_for_each(bl, sub) {
+		struct block_dims *bl_dim = pmap_get(struct block_dims, env->block_dims, sub);
+		int height_diff = max_height - bl_dim->subtree_box.h;
 
-    set_y(env, sub, up + height_diff);
-  }
+		set_y(env, sub, up + height_diff);
+	}
 
-  dims->subtree_box.y += up;
-  dims->box.y += up;
+	dims->subtree_box.y += up;
+	dims->box.y         += up;
 }
 
 static color_t *reg_to_color(const draw_chordal_env_t *env,
-    ir_node *rel_bl, ir_node *irn, color_t *color)
+							 ir_node *rel_bl, ir_node *irn, color_t *color)
 {
-  int phi_arg = 0;
-  const ir_edge_t *edge;
+	int phi_arg = 0;
+	(void) env;
+	(void) rel_bl;
 
-  foreach_out_edge(irn, edge)
-    phi_arg |= is_Phi(edge->src);
-
-#if 1
-  color->r = is_Phi(irn) ? 0.5 : 0.0;
-  color->g = phi_arg ? 0.5 : 0.0;
-  color->b = 0.0;
-#else
-  {
-    int live_in = is_live_in(rel_bl, irn);
-    int live_out = is_live_out(rel_bl, irn);
-
-    color->r = live_in;
-    color->g = live_out;
-    color->b = 0.0;
-  }
-#endif
-
-  return color;
+	foreach_out_edge(irn, edge)
+		phi_arg |= is_Phi(edge->src);
 
+	color->r = is_Phi(irn) ? 0.5 : 0.0;
+	color->g = phi_arg ? 0.5 : 0.0;
+	color->b = 0.0;
+	return color;
 }
 
 static void draw_block(ir_node *bl, void *data)
 {
-  static const color_t black = { 0, 0, 0 };
-
-  const draw_chordal_env_t *env = data;
-  pset *live_in = be_lv_pset_put_in(env->chordal_env->lv, bl, pset_new_ptr_default());
-  ir_node *irn;
-  border_t *b;
-	struct list_head *head = get_block_border_head(env->chordal_env, bl);
-  ir_node *dom = get_Block_idom(bl);
-  const draw_chordal_opts_t *opts = env->opts;
-  struct block_dims *dims = pmap_get(env->block_dims, bl);
-  char buf[64];
-
-  ir_snprintf(buf, sizeof(buf), "%F", bl);
-
-  env->plotter->vtab->set_color(env->plotter, &black);
-  env->plotter->vtab->box(env->plotter, &dims->box);
-
-#if 0
-  env->plotter->vtab->text(env->plotter, dims->box.x, dims->box.y, buf);
-#endif
-
-	list_for_each_entry(border_t, b, head, list) {
-    if(b->is_def) {
-      const arch_register_t *reg = arch_get_irn_register(env->arch_env, b->irn);
-      int col = arch_register_get_index(reg);
-      int live_out = be_is_live_out(env->chordal_env->lv, bl, b->irn);
-      int x = (col + 1) * opts->h_inter_gap;
-      int ystart = (b->step) * opts->v_inter_gap;
-      int ystop = (b->other_end->step)
-        * opts->v_inter_gap + (live_out ? 0 : opts->v_inter_gap / 2);
-
-      color_t color;
-      reg_to_color(env, bl, b->irn, &color);
-
-      x += dims->box.x;
-      ystart += dims->box.y;
-      ystop += dims->box.y;
-
-      env->plotter->vtab->set_color(env->plotter, &color);
-      env->plotter->vtab->line(env->plotter, x, ystart, x, ystop);
-
-      env->plotter->vtab->line(env->plotter, x - 2, ystart, x + 2, ystart);
-      env->plotter->vtab->line(env->plotter, x - 2, ystop, x + 2, ystop);
-    }
-  }
-
-  if(dom) {
-    struct block_dims *dom_dims = pmap_get(env->block_dims, dom);
-
-    for(irn = pset_first(live_in); irn; irn = pset_next(live_in)) {
-      if(arch_irn_has_reg_class(env->arch_env, irn, -1, env->cls)) {
-        const arch_register_t *reg = arch_get_irn_register(env->arch_env, irn);
-        int col = arch_register_get_index(reg);
-        int x = (col + 1) * opts->h_inter_gap;
-
-        color_t color;
-        reg_to_color(env, bl, irn, &color);
-
-        env->plotter->vtab->set_color(env->plotter, &color);
-        env->plotter->vtab->line(env->plotter,
-            dims->box.x + x,
-            dims->box.y + dims->box.h,
-            dom_dims->box.x + x,
-            dom_dims->box.y);
-      }
-    }
-  }
-
-  del_pset(live_in);
+	static const color_t      black    = { 0, 0, 0 };
+	const draw_chordal_env_t  *env     = (const draw_chordal_env_t*)data;
+	const be_lv_t             *lv      = be_get_irg_liveness(env->chordal_env->irg);
+	struct list_head          *head    = get_block_border_head(env->chordal_env, bl);
+	ir_node                   *dom     = get_Block_idom(bl);
+	const draw_chordal_opts_t *opts    = env->opts;
+	struct block_dims         *dims    = pmap_get(struct block_dims, env->block_dims, bl);
+	char                      buf[64];
+
+	ir_snprintf(buf, sizeof(buf), "%F", bl);
+
+	env->plotter->vtab->set_color(env->plotter, &black);
+	env->plotter->vtab->box(env->plotter, &dims->box);
+
+	env->plotter->vtab->text(env->plotter, dims->box.x, dims->box.y, buf);
+
+	foreach_border_head(head, b) {
+		if (b->is_def) {
+			/* Walk from def to use, so the link is set before retrieved. */
+			set_irn_link(b->irn, b);
+		} else {
+			ir_node               *const irn = b->irn;
+			border_t        const *const def = (border_t const*)get_irn_link(irn);
+			arch_register_t const *const reg = arch_get_irn_register(irn);
+
+			int live_out = be_is_live_out(lv, bl, irn);
+			int x        = (reg->index + 1) * opts->h_inter_gap;
+			int ystart   = def->step * opts->v_inter_gap;
+			int ystop    =   b->step * opts->v_inter_gap + (live_out ? 0 : opts->v_inter_gap / 2);
+
+			color_t color;
+			reg_to_color(env, bl, irn, &color);
+
+			x      += dims->box.x;
+			ystart += dims->box.y;
+			ystop  += dims->box.y;
+
+			env->plotter->vtab->set_color(env->plotter, &color);
+			env->plotter->vtab->line(env->plotter, x, ystart, x, ystop);
+
+			env->plotter->vtab->line(env->plotter, x - 2, ystart, x + 2, ystart);
+			env->plotter->vtab->line(env->plotter, x - 2, ystop, x + 2, ystop);
+		}
+	}
+
+	if (dom) {
+		struct block_dims *dom_dims = pmap_get(struct block_dims, env->block_dims, dom);
+
+		be_lv_foreach_cls(lv, bl, be_lv_state_in, env->cls, irn) {
+			const arch_register_t *reg = arch_get_irn_register(irn);
+			int                    x   = (reg->index + 1) * opts->h_inter_gap;
+			color_t                color;
+
+			reg_to_color(env, bl, irn, &color);
+
+			env->plotter->vtab->set_color(env->plotter, &color);
+			env->plotter->vtab->line(env->plotter,
+				dims->box.x + x,
+				dims->box.y + dims->box.h,
+				dom_dims->box.x + x,
+				dom_dims->box.y);
+		}
+	}
 }
 
 static void draw(draw_chordal_env_t *env, const rect_t *start_box)
 {
-  plotter_t *p = env->plotter;
-  rect_t bbox;
-
-  bbox.x = bbox.y = 0;
-  bbox.w = start_box->w + 2 * env->opts->x_margin;
-  bbox.h = start_box->h + 2 * env->opts->y_margin;
-
-  p->vtab->begin(p, &bbox);
-  irg_block_walk_graph(env->chordal_env->irg, draw_block, NULL, env);
-  p->vtab->finish(p);
+	ir_graph  *irg = env->chordal_env->irg;
+	plotter_t *p = env->plotter;
+	rect_t bbox;
+
+	bbox.x = bbox.y = 0;
+	bbox.w = start_box->w + 2 * env->opts->x_margin;
+	bbox.h = start_box->h + 2 * env->opts->y_margin;
+
+	be_assure_live_sets(irg);
+	be_assure_live_chk(irg);
+
+	p->vtab->begin(p, &bbox);
+	ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
+	irg_block_walk_graph(irg, draw_block, NULL, env);
+	ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
+	p->vtab->finish(p);
 }
 
 void draw_interval_tree(const draw_chordal_opts_t *opts,
-						const be_chordal_env_t *chordal_env,
-						plotter_t *plotter)
+                        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);
-
-  env.arch_env = chordal_env->birg->main_env->arch_env;
-  env.opts = opts;
-  env.block_dims = pmap_create();
-  env.plotter = plotter;
-  env.cls = chordal_env->cls;
-  env.max_color = 0;
-  env.chordal_env = chordal_env;
-  obstack_init(&env.obst);
-
-  irg_block_walk_graph(chordal_env->irg, block_dims_walker, NULL, &env);
-  layout(&env, start_block, opts->x_margin);
-  set_y(&env, start_block, opts->y_margin);
-  start_dims = pmap_get(env.block_dims, start_block);
-  draw(&env, &start_dims->subtree_box);
-
-  pmap_destroy(env.block_dims);
-  obstack_free(&env.obst, NULL);
+	draw_chordal_env_t env;
+	struct block_dims  *start_dims;
+	ir_node            *start_block = get_irg_start_block(chordal_env->irg);
+
+	env.opts        = opts;
+	env.block_dims  = pmap_create();
+	env.plotter     = plotter;
+	env.cls         = chordal_env->cls;
+	env.max_color   = 0;
+	env.chordal_env = chordal_env;
+	obstack_init(&env.obst);
+
+	irg_block_walk_graph(chordal_env->irg, block_dims_walker, NULL, &env);
+	layout(&env, start_block, opts->x_margin);
+	set_y(&env, start_block, opts->y_margin);
+	start_dims = pmap_get(struct block_dims, env.block_dims, start_block);
+	draw(&env, &start_dims->subtree_box);
+
+	pmap_destroy(env.block_dims);
+	obstack_free(&env.obst, NULL);
 }