Corrected setting register classes of Return and Barrier nodes

[libfirm] / ir / be / bearch.c

diff --git a/ir/be/bearch.c b/ir/be/bearch.c
index 9b3303c..8ff6628 100644 (file)
--- a/ir/be/bearch.c
+++ b/ir/be/bearch.c
@@ -22,11 +22,14 @@
 
 #include "bearch.h"
 #include "ircons_t.h"
+#include "irnode_t.h"
 
 #include "bitset.h"
 #include "pset.h"
 #include "entity.h"
 
+#include "irprintf.h"
+
 arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa_if)
 {
   memset(env, 0, sizeof(*env));
@@ -34,7 +37,7 @@ arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa_if)
   return env;
 }
 
-arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
+arch_env_t *arch_env_push_irn_handler(arch_env_t *env,
     const arch_irn_handler_t *handler)
 {
   assert(env->handlers_tos <= ARCH_MAX_HANDLERS);
@@ -42,6 +45,12 @@ arch_env_t *arch_env_add_irn_handler(arch_env_t *env,
   return env;
 }
 
+const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env)
+{
+  assert(env->handlers_tos > 0 && env->handlers_tos <= ARCH_MAX_HANDLERS);
+  return env->handlers[--env->handlers_tos];
+}
+
 static const arch_irn_ops_t *fallback_irn_ops = NULL;
 
 int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs)
@@ -85,6 +94,19 @@ const arch_register_req_t *arch_get_register_req(const arch_env_t *env,
   return ops->impl->get_irn_reg_req(ops, req, irn, pos);
 }
 
+void arch_set_frame_offset(const arch_env_t *env, ir_node *irn, int offset)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  ops->impl->set_frame_offset(ops, irn, offset);
+}
+
+entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn)
+{
+  const arch_irn_ops_t *ops = get_irn_ops(env, irn);
+  return ops->impl->get_frame_entity(ops, irn);
+}
+
+
 int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs)
 {
   arch_register_req_t local_req;
@@ -105,6 +127,16 @@ int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos
   return req->cls->n_regs;
 }
 
+void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs)
+{
+       int i;
+
+       for(i = 0; i < cls->n_regs; ++i) {
+               if(!arch_register_type_is(&cls->regs[i], ignore))
+                       bitset_set(bs, i);
+       }
+}
+
 int arch_is_register_operand(const arch_env_t *env,
     const ir_node *irn, int pos)
 {
@@ -167,3 +199,45 @@ extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node
   const arch_irn_ops_t *ops = get_irn_ops(env, irn);
   return ops->impl->get_flags(ops, irn);
 }
+
+extern const char *arch_irn_flag_str(arch_irn_flags_t fl)
+{
+       switch(fl) {
+#define XXX(x) case arch_irn_flags_ ## x: return #x;
+               XXX(dont_spill);
+               XXX(ignore);
+               XXX(rematerializable);
+               XXX(none);
+#undef XXX
+       }
+       return "n/a";
+}
+
+extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req)
+{
+       char tmp[128];
+       snprintf(buf, len, "class: %s", req->cls->name);
+
+       if(arch_register_req_is(req, limited)) {
+               bitset_pos_t elm;
+               bitset_t *bs = bitset_alloca(req->cls->n_regs);
+               req->limited(req->limited_env, bs);
+               strncat(buf, " limited:", len);
+               bitset_foreach(bs, elm) {
+                       strncat(buf, " ", len);
+                       strncat(buf, req->cls->regs[elm].name, len);
+               }
+       }
+
+       if(arch_register_req_is(req, should_be_same)) {
+               ir_snprintf(tmp, sizeof(tmp), " same to: %+F", req->other_different);
+               strncat(buf, tmp, len);
+       }
+
+       if(arch_register_req_is(req, should_be_different)) {
+               ir_snprintf(tmp, sizeof(tmp), " different to: %+F", req->other_different);
+               strncat(buf, tmp, len);
+       }
+
+       return buf;
+}