Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lld/test/ELF/as-needed.s

@@ -0,0 +1,49 @@
+// REQUIRES: x86
+// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
+// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o
+// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared2.s -o %t3.o
+// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared3.s -o %t4.o
+// RUN: ld.lld -shared %t2.o -soname shared1 -o %t2.so
+// RUN: ld.lld -shared %t3.o -soname shared2 -o %t3.so
+// RUN: ld.lld -shared %t4.o -soname shared3 -o %t4.so
+
+/// Check if --as-needed actually works.
+
+// RUN: ld.lld %t.o %t2.so %t3.so %t4.so -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s
+
+// RUN: ld.lld --as-needed %t.o %t2.so %t3.so %t4.so -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s
+
+// Test with the .o last
+// RUN: ld.lld --as-needed %t2.so %t3.so %t4.so %t.o -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s
+
+// RUN: ld.lld --as-needed %t.o %t2.so --no-as-needed %t3.so %t4.so -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s
+
+/// GROUP directive is the same as --as-needed.
+
+// RUN: echo "GROUP(\"%t2.so\" \"%t3.so\" \"%t4.so\")" > %t.script
+// RUN: ld.lld %t.o %t.script -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck %s
+
+// RUN: echo "GROUP(AS_NEEDED(\"%t2.so\" \"%t3.so\" \"%t4.so\"))" > %t.script
+// RUN: ld.lld %t.o %t.script -o %t2
+// RUN: llvm-readobj -dynamic-table %t2 | FileCheck -check-prefix=CHECK2 %s
+
+// CHECK: NEEDED Shared library: [shared1]
+// CHECK: NEEDED Shared library: [shared2]
+// CHECK: NEEDED Shared library: [shared3]
+
+// CHECK2:     NEEDED Shared library: [shared1]
+// CHECK2-NOT: NEEDED Shared library: [shared2]
+// CHECK2-NOT: NEEDED Shared library: [shared3]
+
+.global _start
+_start:
+.data
+.long bar
+.long zed
+.weak baz
+  call baz