Make sure dead blocks will be reached by irg_block_walk()

[libfirm] / ir / ir / irflag.c

diff --git a/ir/ir/irflag.c b/ir/ir/irflag.c
index fdfbd2d..eebca75 100644 (file)
--- a/ir/ir/irflag.c
+++ b/ir/ir/irflag.c
@@ -33,10 +33,14 @@ optimization_state_t libFIRM_opt =
   ENABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
   ENABLE(OPT_CRITICAL_EDGES)                     |
   ENABLE(OPT_DEAD_NODE_ELIMINATION)              |
+  ENABLE(OPT_DEAD_METHOD_ELIMINATION)            |
   ENABLE(OPT_REASSOCIATION)                      |
   ENABLE(OPT_INLINE)                             |
   ENABLE(OPT_DYN_METH_DISPATCH)                  |
-  ENABLE(OPT_NORMALIZE);
+  ENABLE(OPT_NORMALIZE)                          |
+  ENABLE(OPT_TAIL_RECURSION)                     |
+  ENABLE(OPT_PRECISE_EXC_CONTEXT)                |
+  0;
 
 /* set the flags with set_flagname, get the flag with get_flagname */
 void set_opt_cse (int value)
@@ -132,6 +136,20 @@ void set_opt_dead_node_elimination(int value)
     libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
 }
 
+void set_opt_dead_method_elimination (int value) {
+  if (value)
+    libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
+  else
+    libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
+}
+
+void set_opt_dead_method_elimination_verbose (int value) {
+  if (value)
+    libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION_VERBOSE;
+  else
+    libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION_VERBOSE;
+}
+
 void set_optimize(int value)
 {
   if (value)
@@ -145,6 +163,7 @@ int get_optimize(void)
   return get_opt_optimize();
 }
 
+/* Enable/Disables inlining. */
 void set_opt_inline(int value)
 {
   if (value)
@@ -153,12 +172,7 @@ void set_opt_inline(int value)
     libFIRM_opt &= ~OPT_INLINE;
 }
 
-/** Enable/Disable optimization of dynamic method dispatch
- *
- * This flag enables/disables the optimization of dynamic method dispatch.
- * If the flag is turned on Sel nodes can be replaced by Const nodes representing
- * the address of a function.
- */
+/* Enable/Disable optimization of dynamic method dispatch */
 void set_opt_dyn_meth_dispatch (int value)
 {
   if (value)
@@ -167,6 +181,7 @@ void set_opt_dyn_meth_dispatch (int value)
     libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
 }
 
+/* Enable/Disable normalizations of the firm representation. */
 void set_opt_normalize(int value)
 {
   if (value)
@@ -175,102 +190,34 @@ void set_opt_normalize(int value)
     libFIRM_opt &= ~OPT_NORMALIZE;
 }
 
-/* Save the current optimization state. */
-void save_optimization_state(optimization_state_t *state)
-{
-  *state = libFIRM_opt;
-}
-
-/* Restore the current optimization state. */
-void restore_optimization_state(const optimization_state_t *state)
+/* Enable/Disable optimization of tail-recursion calls. */
+void set_opt_tail_recursion(int value)
 {
-  libFIRM_opt = *state;
-}
-
-/* repeat 'inline' methods here */
-
-# ifndef USE_GCC_INLINE
-
-/** Returns constant folding optimization setting. */
-int get_opt_cse(void)           /* iropt.c */
-{
-  return libFIRM_opt & OPT_CSE;
-}
-
-/** Returns constant subexpression elimination setting. */
-int get_opt_global_cse(void)    /* irgopt.c iropt.c */
-{
-  return libFIRM_opt & OPT_GLOBAL_CSE;
-}
-
-/** Returns global constant subexpression elimination setting. */
-int get_opt_constant_folding(void) /* iropt.c */
-{
-  return libFIRM_opt & OPT_CONSTANT_FOLDING;
-}
-
-/** Returns unreachable code elimination setting. */
-int get_opt_unreachable_code(void) /* iropt.c */
-{
-  return libFIRM_opt & OPT_UNREACHABLE_CODE;
-}
-
-/** Returns Straightening setting. */
-int get_opt_control_flow_straightening(void) /* iropt.c, irgopt.c */
-{
-  return libFIRM_opt & OPT_CONTROL_FLOW_STRAIGHTENING;
-}
-
-/** Returns if simplifications in local optimizations setting. */
-int get_opt_control_flow_weak_simplification(void) /* iropt.c, irgopt.c */
-{
-  return libFIRM_opt & OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
-}
-
-/** Returns strong if and loop simplification setting */
-int get_opt_control_flow_strong_simplification(void) /* irgopt.c */
-{
-  return libFIRM_opt & OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
-}
-
-/** Returns whether critical edges are removed */
-int get_opt_critical_edges(void) /* irgopt.c */
-{
-  return libFIRM_opt & OPT_CRITICAL_EDGES;
-}
-
-/** Returns reassociation setting. */
-int get_opt_reassociation(void) /* iropt.c */
-{
-  return libFIRM_opt & OPT_REASSOCIATION;
-}
-
-/** Returns dead node elimination setting. */
-int get_opt_dead_node_elimination(void) /* irgopt.c */
-{
-  return libFIRM_opt & OPT_DEAD_NODE_ELIMINATION;
-}
-
-/** Returns global optimization setting */
-int get_opt_optimize(void)      /* iropt.c, irgopt.c */
-{
-  return libFIRM_opt & OPT_OPTIMIZED;
+  if (value)
+    libFIRM_opt |= OPT_TAIL_RECURSION;
+  else
+    libFIRM_opt &= ~OPT_TAIL_RECURSION;
 }
 
-/** Returns inlining setting. */ /* how appropriate */
-int get_opt_inline(void)        /* irgopt.c */
+/* Enable/Disable precise exception context. */
+void set_opt_precise_exc_context(int value)
 {
-  return libFIRM_opt & OPT_INLINE;
+#if PRECISE_EXC_CONTEXT
+  if (value)
+    libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
+  else
+    libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
+#endif
 }
 
-int get_opt_dyn_meth_dispatch(void) /* cgana.c */
+/* Save the current optimization state. */
+void save_optimization_state(optimization_state_t *state)
 {
-  return libFIRM_opt & OPT_DYN_METH_DISPATCH;
+  *state = libFIRM_opt;
 }
 
-int get_opt_normalize(void)     /* irgopt.c, irnode.c, iropt.c */
+/* Restore the current optimization state. */
+void restore_optimization_state(const optimization_state_t *state)
 {
-  return libFIRM_opt & OPT_NORMALIZE;
+  libFIRM_opt = *state;
 }
-
-# endif /* not defined USE_GCC_INLINE */