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authorMartin Uecker <uecker@tugraz.at>2024-01-23 13:33:34 +0100
committerMartin Uecker <uecker@tugraz.at>2024-01-31 20:56:01 +0100
commitf6ba433d3c30c20fadd393eed31617a4da81789c (patch)
tree3179c31e88149b4adae0c735df25444fdebb5584 /gcc
parent3fed1609f61088c4e607d6987d86579f684bf4dc (diff)
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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.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/c/c-typeck.cc5
-rw-r--r--gcc/testsuite/gcc.dg/pr113438.c7
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/c/c-typeck.cc b/gcc/c/c-typeck.cc
index 12d1a5a..3b519c4 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 0000000..5612ee4
--- /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);
+