[LinkerWrapper] Fix linker-wrapper not working with host-LTO

Author: jhuber6

clang/test/Driver/linker-wrapper.c

@@ -11,6 +11,15 @@
 
 // NVPTX_LINK: nvlink{{.*}}-m64 -o {{.*}}.out -arch sm_70 {{.*}}.o {{.*}}.o
 
+// RUN: clang-offload-packager -o %t.out \
+// RUN:   --image=file=%S/Inputs/dummy-elf.o,kind=openmp,triple=nvptx64-nvidia-cuda,arch=sm_70 \
+// RUN:   --image=file=%S/Inputs/dummy-elf.o,kind=openmp,triple=nvptx64-nvidia-cuda,arch=sm_70
+// RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-llvm-bc -o %t.o -fembed-offload-object=%t.out
+// RUN: clang-linker-wrapper --host-triple=x86_64-unknown-linux-gnu --dry-run \
+// RUN:   --linker-path=/usr/bin/ld -- %t.o -o a.out 2>&1 | FileCheck %s --check-prefix=HOST_BC
+
+// HOST_BC: nvlink{{.*}}-m64 -o {{.*}}.out -arch sm_70 {{.*}}.o {{.*}}.o
+
 // RUN: clang-offload-packager -o %t.out \
 // RUN:   --image=file=%S/Inputs/dummy-elf.o,kind=openmp,triple=nvptx64-nvidia-cuda,arch=sm_70 \
 // RUN:   --image=file=%S/Inputs/dummy-elf.o,kind=openmp,triple=nvptx64-nvidia-cuda,arch=sm_70

clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp

@@ -336,7 +336,7 @@ Error extractFromBitcode(std::unique_ptr<MemoryBuffer> Buffer,
 
   // Extract offloading data from globals referenced by the
   // `llvm.embedded.object` metadata with the `.llvm.offloading` section.
-  auto *MD = M->getNamedMetadata("llvm.embedded.object");
+  auto *MD = M->getNamedMetadata("llvm.embedded.objects");
   if (!MD)
     return Error::success();