Index: ELF/InputFiles.cpp
===================================================================
--- ELF/InputFiles.cpp
+++ ELF/InputFiles.cpp
@@ -322,8 +322,7 @@
       if (Sec.sh_link >= Sections.size())
         fatal(toString(this) + ": invalid sh_link index: " +
               Twine(Sec.sh_link));
-      auto *IS = cast<InputSection<ELFT>>(Sections[Sec.sh_link]);
-      IS->DependentSections.push_back(Sections[I]);
+      Sections[Sec.sh_link]->DependentSections.push_back(Sections[I]);
     }
   }
 }
@@ -407,8 +406,12 @@
     // from the output, so returning `nullptr` for the normal case.
     // However, if -emit-relocs is given, we need to leave them in the output.
     // (Some post link analysis tools need this information.)
-    if (Config->EmitRelocs)
-      return make<InputSection<ELFT>>(this, &Sec, Name);
+    if (Config->EmitRelocs) {
+      InputSection<ELFT> *RelocSec = make<InputSection<ELFT>>(this, &Sec, Name);
+      // We will not emit relocation section if target was discarded.
+      Target->DependentSections.push_back(RelocSec);
+      return RelocSec;
+    }
     return nullptr;
   }
   }
Index: ELF/InputSection.h
===================================================================
--- ELF/InputSection.h
+++ ELF/InputSection.h
@@ -128,6 +128,9 @@
   // this but instead this->Repl.
   InputSectionBase<ELFT> *Repl;
 
+  // InputSections that are dependent on us (reverse dependency for GC)
+  llvm::TinyPtrVector<InputSectionBase<ELFT> *> DependentSections;
+
   // Returns the size of this section (even if this is a common or BSS.)
   size_t getSize() const;
 
@@ -281,9 +284,6 @@
   // to. The writer sets a value.
   uint64_t OutSecOff = 0;
 
-  // InputSections that are dependent on us (reverse dependency for GC)
-  llvm::TinyPtrVector<InputSectionBase<ELFT> *> DependentSections;
-
   static bool classof(const InputSectionData *S);
 
   InputSectionBase<ELFT> *getRelocatedSection();
Index: ELF/LinkerScript.cpp
===================================================================
--- ELF/LinkerScript.cpp
+++ ELF/LinkerScript.cpp
@@ -277,11 +277,7 @@
   for (InputSectionBase<ELFT> *S : V) {
     S->Live = false;
     reportDiscarded(S);
-
-    InputSection<ELFT> *IS = dyn_cast<InputSection<ELFT>>(S);
-    if (!IS || IS->DependentSections.empty())
-      continue;
-    discard(IS->DependentSections);
+    discard(S->DependentSections);
   }
 }
 
Index: test/ELF/linkerscript/emit-relocs-discard.s
===================================================================
--- test/ELF/linkerscript/emit-relocs-discard.s
+++ test/ELF/linkerscript/emit-relocs-discard.s
@@ -0,0 +1,14 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
+# RUN: echo "SECTIONS { /DISCARD/ : { *(.bbb) } }" > %t.script
+# RUN: ld.lld --emit-relocs --script %t.script %t.o -o %t1
+# RUN: llvm-readobj -r %t1 | FileCheck %s
+
+# CHECK:      Relocations [
+# CHECK-NEXT: ]
+
+.section .aaa,"",@progbits
+.Lfoo:
+
+.section .bbb,"",@progbits
+.long .Lfoo
Index: test/ELF/linkerscript/emit-relocs-ehframe-discard.s
===================================================================
--- test/ELF/linkerscript/emit-relocs-ehframe-discard.s
+++ test/ELF/linkerscript/emit-relocs-ehframe-discard.s
@@ -0,0 +1,11 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
+# RUN: echo "SECTIONS { /DISCARD/ : { *(.eh_frame) } }" > %t.script
+# RUN: ld.lld --emit-relocs --script %t.script %t1.o -o %t
+# RUN: llvm-objdump -section-headers %t | FileCheck %s
+
+# CHECK-NOT: .rela.eh_frame
+
+.section .foo,"ax",@progbits
+.cfi_startproc
+.cfi_endproc