abg-ir.cc: Fix peel_typedef_type(const type_base*).

The various peel_*_type functions are supposed to return either an
underlying type (when something can be "peeled") or the original
type (when not).

This overload of peel_typedef_type currently returns null if the type
isn't a typedef. This patch corrects this.

The bug hasn't bitten as all existing calls are protected by an
is_typedef check. Note that the recursive calls within the function
are to the other (const type_base_sptr&) overload.

	* src/abg-ir.cc (peel_typedef_type): In the const type_base*
        overload, return the original argument rather than null if the
        type isn't actually a typedef.

Signed-off-by: Giuliano Procida <gprocida@google.com>

diff --git a/src/abg-ir.cc b/src/abg-ir.cc
index 1302329557a9a5640601f840259f86ccae20fcb6..2853fe6c812085a16c1f1f71ad58961d49549c3d 100644 (file)
--- a/src/abg-ir.cc
+++ b/src/abg-ir.cc
@@ -5249,7 +5249,7 @@ peel_typedef_type(const type_base* type)
 {
   const typedef_decl* t = is_typedef(type);
   if (!t)
-    return t;
+    return type;
 
   return peel_typedef_type(t->get_underlying_type()).get();
 }