920923-1.c: Prevent spurious regressions with bison 1.50 or later.

	* gcc.dg/noncompile/920923-1.c: Prevent spurious regressions with
	bison 1.50 or later.

From-SVN: r58374

gcc/testsuite/ChangeLog

+2002-10-21  Zack Weinberg  <zack@codesourcery.com>
+
+	* gcc.dg/noncompile/920923-1.c: Prevent spurious regressions with
+	bison 1.50 or later.
+
 2002-10-21  Janis Johnson  <janis187@us.ibm.com>
 
 	* g++.dg/README: Describe more test directories.

gcc/testsuite/gcc.dg/noncompile/920923-1.c

-typedef BYTE unsigned char;	/* { dg-error "syntax error|empty decl" } */
+/* This test case contains a large number of syntactic errors.  We
+   believe the intent of the test is that the compiler simply not
+   crash.  The set of error messages reported is different when the C
+   parser is generated with bison 1.50 than 1.35.  It is not worth
+   attempting to prevent this.  Instead, we use a single dg-error with
+   a regexp that will match _all_ the errors indiscriminately.  The
+   old error/warning/etc markers are kept around for reference, but
+   disabled.
+
+   Revisit after new (recursive descent) parser is implemented for C.
+   -- zw 2002-10-17  */
+
+/* { dg-error ".*" "many syntax errors" { target *-*-* } 0 } */
+
+typedef BYTE unsigned char;	/* { error "syntax error|empty decl" } */
 typedef int item_n;
 typedef int perm_set;
-struct PENT { caddr_t v_addr; };/* { dg-error "parse error|no semicolon" } */
+struct PENT { caddr_t v_addr; };/* { error "parse error|no semicolon" } */
 typedef struct PENT prec;
 typedef struct PENT *prec_t;
 prec_t mem_hash;
-BYTE *mem_base;			/* { dg-error "parse error|no type" } */
+BYTE *mem_base;			/* { error "parse error|no type" } */
 struct PTE {
-     BYTE *p_page;		/* { dg-error "parse error|no semicolon" } */
+     BYTE *p_page;		/* { error "parse error|no semicolon" } */
      perm_set p_perms;
-};				/* { dg-error "parse error" } */
+};				/* { error "parse error" } */
 typedef struct PTE pte;
 struct PTP {
      union {
-	  struct *PTP p_tablep;	/* { dg-error "parse error|no semicolon" } */
+	  struct *PTP p_tablep;	/* { error "parse error|no semicolon" } */
 	  struct *PTE p_entry;
-     } u;			/* { dg-warning "no type or storage class" } */
+     } u;			/* { warning "no type or storage class" } */
      int valid;
-};				/* { dg-error "parse error" } */
-typedef struct PTP (u.p_tablep);/* { dg-error "parse error" } */
+};				/* { error "parse error" } */
+typedef struct PTP (u.p_tablep);/* { error "parse error" } */
 int pfree=0;
 int pcount=0;
 
 void
 mmu_walk_find(va)
-caddr_t va;			/* { dg-error "parse error|no type" } */
+caddr_t va;			/* { error "parse error|no type" } */
 {
      BYTE *page_addr;
      if (mmu_base[Level1(va)]->valid==0x0) {
 	  l1_base = mmu_base[Level1(va)]->(u.p_tablep) = p_alloc();
-	  mmu_base[Level1(va)]->valid = 0x3;	/* { dg-error "parse error" } */
+	  mmu_base[Level1(va)]->valid = 0x3;	/* { error "parse error" } */
 	  for (idx=0; idx<LEVEL1_ENTRIES; idx++)
 	       l1_base[idx]->valid = 0x0;
 	  goto build_level2;
@@ -39,42 +53,42 @@ caddr_t va;			/* { dg-error "parse error|no type" } */
      if (l1_base[Level2(va)]->valid==0x0) {
      build_level2:
 	  l2_base = l1_base[Level2(va)]->(u.p_tablep) = p_alloc();
-	  l1_base[Level2(va)]->valid = 0x3;	/* { dg-error "parse error" } */
+	  l1_base[Level2(va)]->valid = 0x3;	/* { error "parse error" } */
 	  for (idx=0; idx<LEVEL2_ENTRIES; idx++)
 	       l2_base[idx]->valid=0x0;
 	  goto build_page;
      } else
 	  l2_base = mmu_base[Level2(va)]->(u.p_tablep);
 
-     page_addr = l2_base[Level2(va)]->valid;/* { dg-error "undeclared|no type" } */
-}				/* { dg-error "parse error" } */
+     page_addr = l2_base[Level2(va)]->valid;/* { error "undeclared|no type" } */
+}				/* { error "parse error" } */
 
 void *
 a_translate(va_op, v_addr)
 int va_op;
-caddr_t v_addr;			/* { dg-error "parse error" } */
+caddr_t v_addr;			/* { error "parse error" } */
 {
      register prec_t bucket;
-     register caddr_t p_addr;	/* { dg-error "syntax error" } */
-     bucket = mem_hash+((((v_addr)>>ITEMBITS))&hash_mask); /* { dg-error "undeclared|for each function" } */
+     register caddr_t p_addr;	/* { error "syntax error" } */
+     bucket = mem_hash+((((v_addr)>>ITEMBITS))&hash_mask); /* { error "undeclared|for each function" } */
      do {
-	  if (bucket->v_addr == ((v_addr)>>ITEMBITS) {	/* { dg-error "incomplete type|parse error" } */
+	  if (bucket->v_addr == ((v_addr)>>ITEMBITS) {	/* { error "incomplete type|parse error" } */
 	       if(!(bucket->perm_set&va_op))
 		    goto prot_fault;
 	       return mem_base + v_addr;
 	  }
-     } while((bucket++)->v_addr != ((caddr_t)0));  /* { dg-error "parse error" } */
+     } while((bucket++)->v_addr != ((caddr_t)0));  /* { error "parse error" } */
 
  page_miss:
-     p_addr = (--bucket)->p_addr;	/* { dg-error "undeclared|pointer to" } */
+     p_addr = (--bucket)->p_addr;	/* { error "undeclared|pointer to" } */
  page_type:
      switch (p_addr) {
-     case BUCKET_FULL:		/* { dg-error "undeclared" } */
+     case BUCKET_FULL:		/* { error "undeclared" } */
 	  enlarge_hash_table(mem_hash);
-     case((caddr_t)0):		/* { dg-error "undeclared|parse error" } */
+     case((caddr_t)0):		/* { error "undeclared|parse error" } */
 	  p_addr = fill_item_entry(va_op, v_addr);
 	  goto page_type;
-     case((caddr_t)1):		/* { dg-error "parse error" } */
+     case((caddr_t)1):		/* { error "parse error" } */
      default:
 	  ((void)(((0))?0:(__eprintf("Failed assertion`%s'at line%d of`%s'.\n",
 				     "FALSE", 327, "b.c"), 0)));
@@ -90,9 +104,9 @@ int hash_size;
      register int idx;
      bucket = hasht;
      for(idx=(hash_size*3)-1; idx>=0; idx--) {
-	  bucket->v_addr = ((caddr_t)0);/* { dg-error "undeclared|pointer to|parse error" } */
-	  bucket->p_addr = ((caddr_t)0);/* { dg-error "pointer to|parse error" } */
-	  bucket->perm_set = VA_EMPTY;	/* { dg-error "undeclared|pointer to" } */
+	  bucket->v_addr = ((caddr_t)0);/* { error "undeclared|pointer to|parse error" } */
+	  bucket->p_addr = ((caddr_t)0);/* { error "pointer to|parse error" } */
+	  bucket->perm_set = VA_EMPTY;	/* { error "undeclared|pointer to" } */
      }
 }
 
@@ -101,21 +115,21 @@ extern void *calloc(__SIZE_TYPE__, __SIZE_TYPE__);
 void
 init_mem()
 {
-     mem_base = (BYTE *) calloc(1024, (1<<13)); /* { dg-error "undeclared|parse error" } */
-     ((void)((mem_base != (BYTE *)0)	/* { dg-error "parse error" } */
+     mem_base = (BYTE *) calloc(1024, (1<<13)); /* { error "undeclared|parse error" } */
+     ((void)((mem_base != (BYTE *)0)	/* { error "parse error" } */
 	     ? 0
 	     : (__eprintf("Failed assertion`%s'at line%d of`%s'.\n",
 			  "mem_base != (BYTE *)0", 366, "b.c"),
 		0)));
-     hash_num = INIT_NUM_ENTRIES * 3;	/* { dg-error "undeclared" } */
-     mem_hash = (prec_t) calloc(hash_num, sizeof(prec)); /* { dg-error "incomplete type" } */
+     hash_num = INIT_NUM_ENTRIES * 3;	/* { error "undeclared" } */
+     mem_hash = (prec_t) calloc(hash_num, sizeof(prec)); /* { error "incomplete type" } */
      ((void)((mem_hash != (prec_t)0)
 	     ? 0
 	     : (__eprintf("Failed assertion`%s'at line%d of`%s'.\n",
 			  "mem_hash != (prec_t)0", 370, "b.c"),
 		0)));
      flush_hash(mem_hash, 32);
-     build_ptables(mem_base, 1024*(1<<13)); /* { dg-bogus "integer overflow" "int smaller than 32 bits" { xfail "xstormy16-*-*" } } */
+     build_ptables(mem_base, 1024*(1<<13)); /* { bogus "integer overflow" "int smaller than 32 bits" } */
 }
 
 struct tm {