X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeinsn.c;h=136cecb2aed605833c5d93056d163da2cb2caafb;hb=4ed245f5007168dab7850942a7ee6b6b29a19817;hp=378d64501327afadd5c9f022ba638a88aaf6a945;hpb=a62baf3793037f4657a37c7f298d18dfafedd1e5;p=libfirm

diff --git a/ir/be/beinsn.c b/ir/be/beinsn.c
index 378d64501..136cecb2a 100644
--- 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;
+}