* config/i386/i386-protos.h (ix86_split_fp_branch): New rtx

[pf3gnuchains/gcc-fork.git] / gcc / global.c

diff --git a/gcc/global.c b/gcc/global.c
index 728914b..5e1ca72 100644 (file)
--- a/gcc/global.c
+++ b/gcc/global.c
@@ -24,13 +24,11 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include "system.h"
 #include "coretypes.h"
 #include "tm.h"
-
 #include "machmode.h"
 #include "hard-reg-set.h"
 #include "rtl.h"
 #include "tm_p.h"
 #include "flags.h"
-#include "basic-block.h"
 #include "regs.h"
 #include "function.h"
 #include "insn-config.h"
@@ -695,7 +693,7 @@ global_conflicts (void)
         since one hard reg can be used with various sizes.
         Therefore, we must require that all the hard regs
         implicitly live as part of a multi-word hard reg
-        are explicitly marked in basic_block_live_at_start.  */
+        be explicitly marked in basic_block_live_at_start.  */
 
       {
        regset old = b->global_live_at_start;
@@ -1806,9 +1804,8 @@ build_insn_chain (rtx first)
   struct insn_chain **p = &reload_insn_chain;
   struct insn_chain *prev = 0;
   basic_block b = ENTRY_BLOCK_PTR->next_bb;
-  regset_head live_relevant_regs_head;
 
-  live_relevant_regs = INITIALIZE_REG_SET (live_relevant_regs_head);
+  live_relevant_regs = ALLOC_REG_SET (&reg_obstack);
 
   for (; first; first = NEXT_INSN (first))
     {
@@ -2306,7 +2303,7 @@ modify_bb_reg_pav (basic_block bb, basic_block pred, bool changed_p)
   bb_pavin = bb_info->pavin;
   bb_pavout = bb_info->pavout;
   if (pred->index != ENTRY_BLOCK)
-    bitmap_a_or_b (bb_pavin, bb_pavin, BB_INFO (pred)->pavout);
+    bitmap_ior_into (bb_pavin, BB_INFO (pred)->pavout);
   changed_p |= bitmap_ior_and_compl (bb_pavout, bb_info->avloc,
                                     bb_pavin, bb_info->killed);
   return changed_p;
@@ -2405,14 +2402,14 @@ modify_reg_pav (void)
         insn if the pseudo-register is used first time in given BB
         and not lived at the BB start.  To prevent this we don't
         change life information for such pseudo-registers.  */
-      bitmap_a_or_b (bb_info->pavin, bb_info->pavin, bb_info->earlyclobber);
+      bitmap_ior_into (bb_info->pavin, bb_info->earlyclobber);
 #ifdef STACK_REGS
       /* We can not use the same stack register for uninitialized
         pseudo-register and another living pseudo-register because if the
         uninitialized pseudo-register dies, subsequent pass reg-stack
         will be confused (it will believe that the other register
         dies).  */
-      bitmap_a_or_b (bb_info->pavin, bb_info->pavin, stack_regs);
+      bitmap_ior_into (bb_info->pavin, stack_regs);
 #endif
     }
 #ifdef STACK_REGS
@@ -2444,10 +2441,8 @@ make_accurate_live_analysis (void)
     {
       bb_info = BB_INFO (bb);
       
-      bitmap_a_and_b (bb->global_live_at_start, bb->global_live_at_start,
-                     bb_info->pavin);
-      bitmap_a_and_b (bb->global_live_at_end, bb->global_live_at_end,
-                     bb_info->pavout);
+      bitmap_and_into (bb->global_live_at_start, bb_info->pavin);
+      bitmap_and_into (bb->global_live_at_end, bb_info->pavout);
     }
   free_bb_info ();
 }