remove delay slot and stack reg code

1 files changed, 0 insertions, 112 deletions

diff --git a/gcc/reload1.c b/gcc/reload1.c
index 8cf24a7..e8af2a2 100755
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -1218,108 +1218,6 @@ reload (first, global, dumpfile)
 static void
 maybe_fix_stack_asms ()
 {
-#ifdef STACK_REGS
-  char *constraints[MAX_RECOG_OPERANDS];
-  enum machine_mode operand_mode[MAX_RECOG_OPERANDS];
-  struct insn_chain *chain;
-
-  for (chain = reload_insn_chain; chain != 0; chain = chain->next)
-    {
-      int i, noperands;
-      HARD_REG_SET clobbered, allowed;
-      rtx pat;
-
-      if (GET_RTX_CLASS (GET_CODE (chain->insn)) != 'i'
-	  || (noperands = asm_noperands (PATTERN (chain->insn))) < 0)
-	continue;
-      pat = PATTERN (chain->insn);
-      if (GET_CODE (pat) != PARALLEL)
-	continue;
-
-      CLEAR_HARD_REG_SET (clobbered);
-      CLEAR_HARD_REG_SET (allowed);
-
-      /* First, make a mask of all stack regs that are clobbered.  */
-      for (i = 0; i < XVECLEN (pat, 0); i++)
-	{
-	  rtx t = XVECEXP (pat, 0, i);
-	  if (GET_CODE (t) == CLOBBER && STACK_REG_P (XEXP (t, 0)))
-	    SET_HARD_REG_BIT (clobbered, REGNO (XEXP (t, 0)));
-	}
-
-      /* Get the operand values and constraints out of the insn.  */
-      decode_asm_operands (pat, recog_operand, recog_operand_loc,
-			   constraints, operand_mode);
-
-      /* For every operand, see what registers are allowed.  */
-      for (i = 0; i < noperands; i++)
-	{
-	  char *p = constraints[i];
-	  /* For every alternative, we compute the class of registers allowed
-	     for reloading in CLS, and merge its contents into the reg set
-	     ALLOWED.  */
-	  int cls = (int) NO_REGS;
-
-	  for (;;)
-	    {
-	      char c = *p++;
-
-	      if (c == '\0' || c == ',' || c == '#')
-		{
-		  /* End of one alternative - mark the regs in the current
-		     class, and reset the class.  */
-		  IOR_HARD_REG_SET (allowed, reg_class_contents[cls]);
-		  cls = NO_REGS;
-		  if (c == '#')
-		    do {
-		      c = *p++;
-		    } while (c != '\0' && c != ',');
-		  if (c == '\0')
-		    break;
-		  continue;
-		}
-
-	      switch (c)
-		{
-		case '=': case '+': case '*': case '%': case '?': case '!':
-		case '0': case '1': case '2': case '3': case '4': case 'm':
-		case '<': case '>': case 'V': case 'o': case '&': case 'E':
-		case 'F': case 's': case 'i': case 'n': case 'X': case 'I':
-		case 'J': case 'K': case 'L': case 'M': case 'N': case 'O':
-		case 'P':
-#ifdef EXTRA_CONSTRAINT
-		case 'Q': case 'R': case 'S': case 'T': case 'U':
-#endif
-		  break;
-
-		case 'p':
-		  cls = (int) reg_class_subunion[cls][(int) BASE_REG_CLASS];
-		  break;
-
-		case 'g':
-		case 'r':
-		  cls = (int) reg_class_subunion[cls][(int) GENERAL_REGS];
-		  break;
-
-		default:
-		  cls = (int) reg_class_subunion[cls][(int) REG_CLASS_FROM_LETTER (c)];
-		
-		}
-	    }
-	}
-      /* Those of the registers which are clobbered, but allowed by the
-	 constraints, must be usable as reload registers.  So clear them
-	 out of the life information.  */
-      AND_HARD_REG_SET (allowed, clobbered);
-      for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
-	if (TEST_HARD_REG_BIT (allowed, i))
-	  {
-	    CLEAR_REGNO_REG_SET (chain->live_before, i);
-	    CLEAR_REGNO_REG_SET (chain->live_after, i);
-	  }
-    }
-
-#endif
 }
 
 
@@ -8693,16 +8591,6 @@ reload_cse_regs_1 (first)
 	  continue;
 	}
 
-#ifdef NON_SAVING_SETJMP 
-      if (NON_SAVING_SETJMP && GET_CODE (insn) == NOTE
-	  && NOTE_LINE_NUMBER (insn) == NOTE_INSN_SETJMP)
-	{
-	  for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
-	    reg_values[i] = 0;
-
-	  continue;
-	}
-#endif
 
       if (GET_RTX_CLASS (GET_CODE (insn)) != 'i')
 	continue;