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-rw-r--r--llvm/test/tools/llvm-objcopy/strip-dwo-groups.test40
1 files changed, 40 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-objcopy/strip-dwo-groups.test b/llvm/test/tools/llvm-objcopy/strip-dwo-groups.test
new file mode 100644
index 00000000000..957bb553b72
--- /dev/null
+++ b/llvm/test/tools/llvm-objcopy/strip-dwo-groups.test
@@ -0,0 +1,40 @@
+# RUN: cp %p/Inputs/groups.o %t
+# RUN: llvm-objcopy -strip-dwo %t
+# RUN: llvm-readobj -elf-section-groups %t | FileCheck %s
+
+// Source code of groups.o:
+//
+// template <class T>
+// struct S {
+// static constexpr T X = T(1);
+// T getX() { return X; }
+// };
+// void f() {
+// S<int> A;
+// S<double> B;
+// int a = A.getX();
+// int b = B.getX();
+// }
+//
+// clang -g -gsplit-dwarf -std=c++11 -c groups.cpp -o groups.o
+
+// `llvm-objcopy -strip-dwo` strips out dwo sections, as a result, the index of
+// the symbol table, the indices of the symbols and the indices of the sections
+// which go after the removed ones will change. Consequently, the fields
+// Link, Info and the content of .group need to be updated. In the past
+// `llvm-objcopy -strip-dwo` used to produce invalid binaries with
+// broken .group section, this test verifies the correctness of
+// Link, Info and the content of this section.
+
+CHECK: Name: .group (179)
+CHECK-NEXT: Index: 17
+CHECK-NEXT: Link: 19
+CHECK-NEXT: Info: 14
+CHECK: .text._ZN1SIiE4getXEv (2)
+
+CHECK: Name: .group (179)
+CHECK-NEXT: Index: 18
+CHECK-NEXT: Link: 19
+CHECK-NEXT: Info: 13
+CHECK: .text._ZN1SIdE4getXEv (4)
+CHECK-NEXT: .rela.text._ZN1SIdE4getXEv (21)
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