remove strings from IR syntax

tests/common/ply/ir_parser.py

@@ -89,7 +89,7 @@ def p_expression_paren(p):
 
 def p_expression_uminus(p):
   'expression : "-" expression %prec UNARY'
-  p[0] = - p[2]
+  p[0] = neg_t(p[2])
 
 def p_expression_uplus(p):
   'expression : "+" expression %prec UNARY'
@@ -119,10 +119,6 @@ def p_expression_number(p):
   'expression : NUMBER'
   p[0] = value_t(p[1], 32)
 
-def p_arg_string(p):
-  'arg : STRING'
-  p[0] = p[1]
-
 def p_arg_expression(p):
   'arg : expression'
   p[0] = p[1]
@@ -172,10 +168,6 @@ def p_assignee_expression(p):
   'assignee : expression'
   p[0] = p[1]
 
-def p_assignee_string(p):
-  'assignee : STRING'
-  p[0] = p[1]
-
 def p_assign(p):
   'assign : assignable "=" assignee'
   p[0] = assign_t(p[1], p[3])
@@ -264,12 +256,11 @@ def parse(text):
   #~ sys.path.append('../../src/')
 
   text = """
-  loc_1:
+  100:
     a = 400; // foo
     b = a - 900 + -100;
     // bar
     c = *(a + 4);
-    d = "blarg";
   """
 
   print parse(text)