From e3cadb61514ed37efea2d991401844a352083783 Mon Sep 17 00:00:00 2001
From: Roger Sayle <roger@eyesopen.com>
Date: Tue, 17 Aug 2004 13:29:04 +0000
Subject: regclass.c (init_reg_sets_1): Add ENABLE_CHECKING sanity tests to
 ensure that call_used_regs is a superset of...

	* regclass.c (init_reg_sets_1): Add ENABLE_CHECKING sanity tests to
	ensure that call_used_regs is a superset of both fixed_regs and
	call_really_used_regs.

From-SVN: r86119
---
 gcc/regclass.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'gcc/regclass.c')

diff --git a/gcc/regclass.c b/gcc/regclass.c
index 1f51af6..1304313 100644
--- a/gcc/regclass.c
+++ b/gcc/regclass.c
@@ -427,6 +427,17 @@ init_reg_sets_1 (void)
 
   for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
     {
+#ifdef ENABLE_CHECKING
+      /* call_used_regs must include fixed_regs.  */
+      if (fixed_regs[i] && !call_used_regs[i])
+	abort ();
+#ifdef CALL_REALLY_USED_REGISTERS
+      /* call_used_regs must include call_really_used_regs.  */
+      if (call_really_used_regs[i] && !call_used_regs[i])
+	abort ();
+#endif
+#endif
+
       if (fixed_regs[i])
 	SET_HARD_REG_BIT (fixed_reg_set, i);
       else
-- 
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