From: Roger Sayle <roger@eyesopen.com>
Date: Tue, 17 Aug 2004 13:29:04 +0000 (+0000)
Subject: regclass.c (init_reg_sets_1): Add ENABLE_CHECKING sanity tests to ensure that call_us... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e3cadb61514ed37efea2d991401844a352083783;p=gcc.git

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
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ca8f544901e..055fc374808 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2004-08-17  Roger Sayle  <roger@eyesopen.com>
+
+	* 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.
+
 2004-08-17  Daniel Bornstein  <danfuzz@milk.com>
 
 	PR target/17019
diff --git a/gcc/regclass.c b/gcc/regclass.c
index 1f51af610c2..1304313d90d 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