re PR middle-end/43574 (Revision 157795 failed gcc.dg/lto/20090914-1 c_lto_20090914-1_0.o)

	PR 43574
	* opt-functions.awk (var_type_struct): Use signed char type
	for simple variables.

From-SVN: r157859

gcc/ChangeLog

+2010-03-31  Jie Zhang  <jie@codesourcery.com>
+
+	PR 43574
+	* opt-functions.awk (var_type_struct): Use signed char type
+	for simple variables.
+
 2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* config/sol2.c: Include output.h.

gcc/opt-functions.awk

@@ -136,7 +136,7 @@ function var_type(flags)
 }
 
 # Return the type of variable that should be associated with the given flags
-# for use within a structure.  Simple variables are changed to unsigned char
+# for use within a structure.  Simple variables are changed to signed char
 # type instead of int to save space.
 function var_type_struct(flags)
 {
@@ -146,7 +146,7 @@ function var_type_struct(flags)
 		if (flag_set_p(".*Mask.*", flags))
 			return "int "
 		else
-			return "unsigned char "
+			return "signed char "
 	}
 	else
 		return "const char *"