fixed debug output of unary x87 nodes

[libfirm] / ir / be / beinsn.c

diff --git a/ir/be/beinsn.c b/ir/be/beinsn.c
index 378d645..136cecb 100644 (file)
--- a/ir/be/beinsn.c
+++ b/ir/be/beinsn.c
@@ -5,6 +5,7 @@
 
 #include "besched_t.h"
 #include "beinsn_t.h"
+#include "beabi.h"
 
 be_insn_t *be_scan_insn(const be_insn_env_t *env, ir_node *irn)
 {
@@ -87,10 +88,21 @@ be_insn_t *be_scan_insn(const be_insn_env_t *env, ir_node *irn)
                        op->req.limited(op->req.limited_env, op->regs);
                else {
                        arch_put_non_ignore_regs(arch_env, env->cls, op->regs);
-                       bitset_andnot(op->regs, env->ignore_colors);
+                       if(env->ignore_colors)
+                               bitset_andnot(op->regs, env->ignore_colors);
                }
 
        }
 
        return insn;
 }
+
+be_insn_env_t *be_insn_env_init(be_insn_env_t *ie, const be_irg_t *birg, const arch_register_class_t *cls, struct obstack *obst)
+{
+       ie->aenv = birg->main_env->arch_env;
+       ie->cls  = cls;
+       ie->obst = obst;
+       ie->ignore_colors = bitset_obstack_alloc(obst, cls->n_regs);
+       be_abi_put_ignore_regs(birg->abi, cls, ie->ignore_colors);
+       return ie;
+}