Do not mark the transformed as visited. It makes no sense at all.

[libfirm] / ir / be / bechordal.c

diff --git a/ir/be/bechordal.c b/ir/be/bechordal.c
index 2712105..f7f8e4a 100644 (file)
--- a/ir/be/bechordal.c
+++ b/ir/be/bechordal.c
@@ -48,7 +48,6 @@
 #include "irtools.h"
 #include "irbitset.h"
 #include "debug.h"
-#include "xmalloc.h"
 #include "iredges.h"
 
 #include "beutil.h"
@@ -77,12 +76,12 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 typedef struct _be_chordal_alloc_env_t {
        be_chordal_env_t *chordal_env;
 
-       pset *pre_colored;              /**< Set of precolored nodes. */
-       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. */
-       bitset_t *in_colors;            /**< Colors used by live in values. */
-       int colors_n;                   /**< The number of colors. */
+       pset *pre_colored;     /**< Set of precolored nodes. */
+       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. */
+       bitset_t *in_colors;   /**< Colors used by live in values. */
+       int colors_n;          /**< The number of colors. */
 } be_chordal_alloc_env_t;
 
 #include "fourcc.h"
@@ -180,7 +179,7 @@ static INLINE border_t *border_add(be_chordal_env_t *env, struct list_head *head
  */
 static INLINE int has_reg_class(const be_chordal_env_t *env, const ir_node *irn)
 {
-       return arch_irn_consider_in_reg_alloc(&env->birg->main_env->arch_env, env->cls, irn);
+       return arch_irn_consider_in_reg_alloc(env->birg->main_env->arch_env, env->cls, irn);
 }
 
 #define has_limited_constr(req, irn) \
@@ -225,7 +224,7 @@ static be_insn_t *chordal_scan_insn(be_chordal_env_t *env, ir_node *irn)
        be_insn_env_t ie;
 
        ie.ignore_colors = env->ignore_colors;
-       ie.aenv          = &env->birg->main_env->arch_env;
+       ie.aenv          = env->birg->main_env->arch_env;
        ie.obst          = env->obst;
        ie.cls           = env->cls;
        return be_scan_insn(&ie, irn);
@@ -234,7 +233,7 @@ static be_insn_t *chordal_scan_insn(be_chordal_env_t *env, ir_node *irn)
 static ir_node *prepare_constr_insn(be_chordal_env_t *env, ir_node *irn)
 {
        const be_irg_t *birg   = env->birg;
-       const arch_env_t *aenv = &birg->main_env->arch_env;
+       const arch_env_t *aenv = birg->main_env->arch_env;
        bitset_t *tmp          = bitset_alloca(env->cls->n_regs);
        bitset_t *def_constr   = bitset_alloca(env->cls->n_regs);
        ir_node *bl            = get_nodes_block(irn);
@@ -433,7 +432,7 @@ static ir_node *pre_process_constraints(be_chordal_alloc_env_t *alloc_env,
                                         be_insn_t **the_insn)
 {
        be_chordal_env_t *env       = alloc_env->chordal_env;
-       const arch_env_t *aenv      = &env->birg->main_env->arch_env;
+       const arch_env_t *aenv      = env->birg->main_env->arch_env;
        be_insn_t *insn             = *the_insn;
        ir_node *perm               = NULL;
        bitset_t *out_constr        = bitset_alloca(env->cls->n_regs);
@@ -546,7 +545,7 @@ static ir_node *handle_constraints(be_chordal_alloc_env_t *alloc_env,
        if(!insn->has_constraints)
                goto end;
 
-       aenv        = &env->birg->main_env->arch_env;
+       aenv        = env->birg->main_env->arch_env;
        n_regs      = env->cls->n_regs;
        bs          = bitset_alloca(n_regs);
        alloc_nodes = alloca(n_regs * sizeof(alloc_nodes[0]));
@@ -885,7 +884,7 @@ static void assign(ir_node *block, void *env_ptr)
        bitset_t *live              = alloc_env->live;
        bitset_t *colors            = alloc_env->colors;
        bitset_t *in_colors         = alloc_env->in_colors;
-       const arch_env_t *arch_env  = &env->birg->main_env->arch_env;
+       const arch_env_t *arch_env  = env->birg->main_env->arch_env;
        struct list_head *head      = get_block_border_head(env, block);
        be_lv_t *lv                 = env->birg->lv;
 
@@ -998,7 +997,6 @@ void be_ra_chordal_color(be_chordal_env_t *chordal_env)
        int colors_n          = arch_register_class_n_regs(cls);
        ir_graph *irg         = chordal_env->irg;
 
-       be_assure_dom_front(birg);
        lv = be_assure_liveness(birg);
        be_liveness_assure_sets(lv);
        be_liveness_assure_chk(lv);