re PR c++/79821 (SEGV in cc1plus compiling 64-bit stdc++.h.gch/O2g.gch)

	PR c++/79821
	* dwarf2out.h (dw_vec_const): Change array type from unsigned char *
	to void * for PCH reasons.
	* dwarf2out.c (output_loc_operands, output_die): Cast
	v.val_vec.array to unsigned char *.

From-SVN: r245932

gcc/ChangeLog

+2017-03-06  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/79821
+	* dwarf2out.h (dw_vec_const): Change array type from unsigned char *
+	to void * for PCH reasons.
+	* dwarf2out.c (output_loc_operands, output_die): Cast
+	v.val_vec.array to unsigned char *.
+
 2017-03-06  John David Anglin  <danglin@gcc.gnu.org>
 
 	PR target 77850

gcc/dwarf2out.c

@@ -2020,7 +2020,7 @@ output_loc_operands (dw_loc_descr_ref loc, int for_eh_or_skip)
 		elt_size /= 2;
 		len *= 2;
 	      }
-	    for (i = 0, p = val2->v.val_vec.array;
+	    for (i = 0, p = (unsigned char *) val2->v.val_vec.array;
 		 i < len;
 		 i++, p += elt_size)
 	      dw2_asm_output_data (elt_size, extract_int (p, elt_size),
@@ -2273,7 +2273,7 @@ output_loc_operands (dw_loc_descr_ref loc, int for_eh_or_skip)
 		  elt_size /= 2;
 		  len *= 2;
 		}
-	      for (i = 0, p = val2->v.val_vec.array;
+	      for (i = 0, p = (unsigned char *) val2->v.val_vec.array;
 		   i < len;
 		   i++, p += elt_size)
 		dw2_asm_output_data (elt_size, extract_int (p, elt_size),
@@ -10105,7 +10105,7 @@ output_die (dw_die_ref die)
 		elt_size /= 2;
 		len *= 2;
 	      }
-	    for (i = 0, p = a->dw_attr_val.v.val_vec.array;
+	    for (i = 0, p = (unsigned char *) a->dw_attr_val.v.val_vec.array;
 		 i < len;
 		 i++, p += elt_size)
 	      dw2_asm_output_data (elt_size, extract_int (p, elt_size),

gcc/dwarf2out.h

@@ -163,7 +163,7 @@ enum dw_val_class
 /* Describe a floating point constant value, or a vector constant value.  */
 
 struct GTY(()) dw_vec_const {
-  unsigned char * GTY((atomic)) array;
+  void * GTY((atomic)) array;
   unsigned length;
   unsigned elt_size;
 };