[lldb] Test case for the bug in #92328

Author: labath

lldb/test/Shell/SymbolFile/DWARF/x86/simple-template-names-context.cpp

@@ -0,0 +1,44 @@
+// Test that we can correctly resolve forward declared types when they only
+// differ in the template arguments of the surrounding context. The reproducer
+// is sensitive to the order of declarations, so we test in both directions.
+
+// REQUIRES: lld
+
+// RUN: %clang --target=x86_64-pc-linux -c %s -o %t-a.o -g -gsimple-template-names -DFILE_A
+// RUN: %clang --target=x86_64-pc-linux -c %s -o %t-b.o -g -gsimple-template-names -DFILE_B
+// RUN: ld.lld %t-a.o %t-b.o -o %t
+// RUN: %lldb %t -o "target variable --ptr-depth 1 --show-types both_a both_b" -o exit | FileCheck %s
+
+// CHECK: (lldb) target variable
+// CHECK-NEXT: (ReferencesBoth<'A'>) both_a = {
+// CHECK-NEXT:   (Outer<'A'>::Inner *) a = 0x{{[0-9A-Fa-f]*}} {}
+// CHECK-NEXT:   (Outer<'A'>::Inner *) b = 0x{{[0-9A-Fa-f]*}} {}
+// CHECK-NEXT: }
+// CHECK-NEXT: (ReferencesBoth<'B'>) both_b = {
+// CHECK-NEXT:   (Outer<'A'>::Inner *) a = 0x{{[0-9A-Fa-f]*}} {}
+// CHECK-NEXT:   (Outer<'B'>::Inner *) b = 0x{{[0-9A-Fa-f]*}} {}
+// CHECK-NEXT: }
+
+template<char C>
+struct Outer {
+  struct Inner {};
+};
+
+template<char C>
+struct ReferencesBoth {
+  Outer<'A'>::Inner *a;
+  Outer<'B'>::Inner *b;
+};
+
+#ifdef FILE_A
+Outer<'A'>::Inner inner_a;
+extern Outer<'B'>::Inner inner_b;
+
+ReferencesBoth<'A'> both_a{&inner_a, &inner_b};
+
+#else
+extern Outer<'A'>::Inner inner_a;
+Outer<'B'>::Inner inner_b;
+
+ReferencesBoth<'B'> both_b{&inner_a, &inner_b};
+#endif