* doc/install.texi (Prerequisites): Update documentation of

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

diff --git a/gcc/regclass.c b/gcc/regclass.c
index e2023fa..ff7d89e 100644 (file)
--- a/gcc/regclass.c
+++ b/gcc/regclass.c
@@ -278,6 +278,12 @@ init_reg_sets (void)
          SET_HARD_REG_BIT (reg_class_contents[i], j);
     }
 
+  /* Sanity check: make sure the target macros FIXED_REGISTERS and
+     CALL_USED_REGISTERS had the right number of initializers.  */
+  if (sizeof fixed_regs != sizeof initial_fixed_regs
+      || sizeof call_used_regs != sizeof initial_call_used_regs)
+    abort();
+
   memcpy (fixed_regs, initial_fixed_regs, sizeof fixed_regs);
   memcpy (call_used_regs, initial_call_used_regs, sizeof call_used_regs);
   memset (global_regs, 0, sizeof global_regs);
@@ -1008,13 +1014,12 @@ record_operand_costs (rtx insn, struct costs *op_costs,
 static rtx
 scan_one_insn (rtx insn, int pass)
 {
-  enum rtx_code code = GET_CODE (insn);
   enum rtx_code pat_code;
   rtx set, note;
   int i, j;
   struct costs op_costs[MAX_RECOG_OPERANDS];
 
-  if (GET_RTX_CLASS (code) != 'i')
+  if (!INSN_P (insn))
     return insn;
 
   pat_code = GET_CODE (PATTERN (insn));