# Verify that we don't follow DW_AT_sibling references.
#
# Source:
-# struct A { int a; } a;
-# struct B { int b; } b;
+# struct A { };
+# struct B { };
+#
+# struct C {
+# A a;
+# };
+#
+# B b;
+# C c;
+#
+# Compiled with Apple-GCC 4.0.1 (build 5370):
+# g++ -g -c sibling.cpp -o sibling.o
# RUN: llvm-dsymutil -arch ppc -f -oso-prepend-path=%p/../Inputs/ -y %s -o - | llvm-dwarfdump -debug-info - | FileCheck %s
-# CHECK: DW_TAG_variable
-# CHECK-NEXT: DW_AT_name ("a")
-# CHECK-NOT: DW_AT_name ("b")
+# CHECK: DW_TAG_structure_type
+# CHECK-NEXT: DW_AT_name ("A")
+# CHECK: DW_TAG_structure_type
+# CHECK-NEXT: DW_AT_name ("C")
+
+# CHECK-NOT: DW_AT_name ("B")
---
triple: 'ppc-apple-darwin'
- filename: sibling.o
timestamp: 1518197670
symbols:
- - { sym: _a, objAddr: 0x00000000000000cb, binAddr: 0x0000000100000FA0, size: 0x00000010 }
+ - { sym: _c, objAddr: 0x000000000000017e, binAddr: 0x0000000100000FA0, size: 0x00000010 }
...
for (const auto &AttrSpec : Abbrev->attributes()) {
DWARFFormValue Val(AttrSpec.Form);
- if (!Val.isFormClass(DWARFFormValue::FC_Reference)) {
+ if (!Val.isFormClass(DWARFFormValue::FC_Reference) ||
+ AttrSpec.Attr == dwarf::DW_AT_sibling) {
DWARFFormValue::skipValue(AttrSpec.Form, Data, &Offset,
Unit.getFormParams());
continue;
resolveDIEReference(Linker, CompileUnits, Val, U, InputDIE, RefUnit);
// If the referenced DIE is not found, drop the attribute.
- if (!RefDie)
+ if (!RefDie || AttrSpec.Attr == dwarf::DW_AT_sibling)
return 0;
unsigned Idx = RefUnit->getOrigUnit().getDIEIndex(RefDie);