re PR bootstrap/38742 (Gcc failed to boostrap with --enable-checking=assert)

2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>

	PR bootstrap/38742
	* ira-color.c (ira_reuse_stack_slot): Check ENABLE_IRA_CHECKING
	before using pseudos_have_intersected_live_ranges_p.

	* ira-int.h (ira_assert): Always define.

From-SVN: r143117

gcc/ChangeLog

 2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR bootstrap/38742
+	* ira-color.c (ira_reuse_stack_slot): Check ENABLE_IRA_CHECKING
+	before using pseudos_have_intersected_live_ranges_p.
+
+	* ira-int.h (ira_assert): Always define.
+
+2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>
+
 	AVX Programming Reference (December, 2008)
 	* config/i386/avxintrin.h (_mm_permute2_pd): Removed.
 	(_mm256_permute2_pd): Likewise.

gcc/ira-color.c

@@ -3037,11 +3037,13 @@ ira_reuse_stack_slot (int regno, unsigned int inherent_size,
   if (x != NULL_RTX)
     {
       ira_assert (slot->width >= total_size);
+#ifdef ENABLE_IRA_CHECKING
       EXECUTE_IF_SET_IN_BITMAP (&slot->spilled_regs,
 				FIRST_PSEUDO_REGISTER, i, bi)
 	{
 	  ira_assert (! pseudos_have_intersected_live_ranges_p (regno, i));
 	}
+#endif
       SET_REGNO_REG_SET (&slot->spilled_regs, regno);
       if (internal_flag_ira_verbose > 3 && ira_dump_file)
 	{

gcc/ira-int.h

@@ -33,7 +33,9 @@ along with GCC; see the file COPYING3.  If not see
 #ifdef ENABLE_IRA_CHECKING
 #define ira_assert(c) gcc_assert (c)
 #else
-#define ira_assert(c)
+/* Always define and include C, so that warnings for empty body in an
+  ‘if’ statement and unused variable do not occur.  */
+#define ira_assert(c) ((void)(0 && (c)))
 #endif
 
 /* Compute register frequency from edge frequency FREQ.  It is