Debug output ICEs when we do not set TYPE_STUB_DECL, fix this.
Fix ICE with -g and -std=c23 when forming composite types [PR113438] Set TYPE_STUB_DECL to an artificial decl when creating a new structure as a composite type. PR c/113438 gcc/c/ * c-typeck.cc (composite_type_internal): Set TYPE_STUB_DECL. gcc/testsuite/ * gcc.dg/pr113438.c: New test. diff --git a/gcc/c/c-typeck.cc b/gcc/c/c-typeck.cc index 66c6abc9f07..cfa3b7ab10f 100644 --- a/gcc/c/c-typeck.cc +++ b/gcc/c/c-typeck.cc @@ -585,6 +585,11 @@ composite_type_internal (tree t1, tree t2, struct composite_cache* cache) /* Setup the struct/union type. Because we inherit all variably modified components, we can ignore the size expression. */ tree expr = NULL_TREE; + + /* Set TYPE_STUB_DECL for debugging symbols. */ + TYPE_STUB_DECL (n) = pushdecl (build_decl (input_location, TYPE_DECL, + NULL_TREE, n)); + n = finish_struct(input_location, n, fields, attributes, NULL, &expr); n = qualify_type (n, t1); diff --git a/gcc/testsuite/gcc.dg/pr113438.c b/gcc/testsuite/gcc.dg/pr113438.c new file mode 100644 index 00000000000..5612ee4fa38 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr113438.c @@ -0,0 +1,7 @@ +/* PR113438 + * { dg-do compile } + * { dg-options "-std=c23 -g" } */ + +void g(struct foo { int x; } a); +void g(struct foo { int x; } a); +