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diff gcc/resource.c @ 36:855418dad1a3

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gcc-4.4-20091020
author e075725
date Tue, 22 Dec 2009 21:19:31 +0900
parents 58ad6c70ea60
children 77e2b8dfacca
line wrap: on
line diff
--- a/gcc/resource.c	Thu Sep 24 13:21:57 2009 +0900
+++ b/gcc/resource.c	Tue Dec 22 21:19:31 2009 +0900
@@ -945,10 +945,11 @@
 
   /* If we found a basic block, get the live registers from it and update
      them with anything set or killed between its start and the insn before
-     TARGET.  Otherwise, we must assume everything is live.  */
+     TARGET; this custom life analysis is really about registers so we need
+     to use the LR problem.  Otherwise, we must assume everything is live.  */
   if (b != -1)
     {
-      regset regs_live = df_get_live_in (BASIC_BLOCK (b));
+      regset regs_live = DF_LR_IN (BASIC_BLOCK (b));
       rtx start_insn, stop_insn;
 
       /* Compute hard regs live at start of block.  */
@@ -1052,7 +1053,7 @@
 		{
 		  HARD_REG_SET extra_live;
 
-		  REG_SET_TO_HARD_REG_SET (extra_live, df_get_live_in (bb));
+		  REG_SET_TO_HARD_REG_SET (extra_live, DF_LR_IN (bb));
 		  IOR_HARD_REG_SET (current_live_regs, extra_live);
 		}
 	    }