diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95b83b6161..8480e3b27b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # LDC master
 
 #### Big news
+- Linker-level dead code elimination is enabled by default for Apple, wasm and *all* ELF targets too now. (#4320)
 
 #### Platform support
 
diff --git a/driver/linker-gcc.cpp b/driver/linker-gcc.cpp
index a53936a9aa..85bd276189 100644
--- a/driver/linker-gcc.cpp
+++ b/driver/linker-gcc.cpp
@@ -479,6 +479,8 @@ void ArgsBuilder::addSanitizers(const llvm::Triple &triple) {
 
 void ArgsBuilder::build(llvm::StringRef outputPath,
                         const std::vector<std::string> &defaultLibNames) {
+  const auto &triple = *global.params.targetTriple;
+
   // object files
   for (auto objfile : global.params.objfiles) {
     args.push_back(objfile);
@@ -494,7 +496,7 @@ void ArgsBuilder::build(llvm::StringRef outputPath,
 
   // Link with profile-rt library when generating an instrumented binary.
   if (opts::isInstrumentingForPGO()) {
-    addProfileRuntimeLinkFlags(*global.params.targetTriple);
+    addProfileRuntimeLinkFlags(triple);
   }
 
   if (opts::enableDynamicCompile) {
@@ -521,10 +523,10 @@ void ArgsBuilder::build(llvm::StringRef outputPath,
   args.push_back("-o");
   args.push_back(std::string(outputPath));
 
-  addSanitizers(*global.params.targetTriple);
+  addSanitizers(triple);
 
   if (opts::fXRayInstrument) {
-    addXRayLinkFlags(*global.params.targetTriple);
+    addXRayLinkFlags(triple);
   }
 
   // Add LTO link flags before adding the user link switches, such that the user
@@ -559,16 +561,14 @@ void ArgsBuilder::build(llvm::StringRef outputPath,
       addLdFlag("-rpath", rpath);
   }
 
-  if (global.params.targetTriple->getOS() == llvm::Triple::Linux ||
-      (global.params.targetTriple->getOS() == llvm::Triple::FreeBSD &&
-       (useInternalLLDForLinking() ||
-        (!opts::linker.empty() && opts::linker != "bfd") ||
-        (opts::linker.empty() && isLldDefaultLinker())))) {
-    // Make sure we don't do --gc-sections when generating a profile-
-    // instrumented binary. The runtime relies on magic sections, which
-    // would be stripped by gc-section on older version of ld, see bug:
-    // https://sourceware.org/bugzilla/show_bug.cgi?id=19161
-    if (!opts::disableLinkerStripDead && !opts::isInstrumentingForPGO()) {
+  // Make sure we don't do --gc-sections when generating a profile-
+  // instrumented binary. The runtime relies on magic sections, which
+  // would be stripped by gc-section on older version of ld, see bug:
+  // https://sourceware.org/bugzilla/show_bug.cgi?id=19161
+  if (!opts::disableLinkerStripDead && !opts::isInstrumentingForPGO()) {
+    if (triple.isOSBinFormatMachO()) {
+      addLdFlag("-dead_strip");
+    } else {
       addLdFlag("--gc-sections");
     }
   }
diff --git a/driver/targetmachine.cpp b/driver/targetmachine.cpp
index 3bd7101d3d..9b45464dae 100644
--- a/driver/targetmachine.cpp
+++ b/driver/targetmachine.cpp
@@ -492,14 +492,14 @@ createTargetMachine(const std::string targetTriple, const std::string arch,
     break;
   }
 
-  // Right now, we only support linker-level dead code elimination on Linux
-  // and FreeBSD using GNU or LLD linkers (based on the --gc-sections flag).
-  // The Apple ld on OS X supports a similar flag (-dead_strip) that doesn't
-  // require emitting the symbols into different sections. The MinGW ld doesn't
-  // seem to support --gc-sections at all.
-  if (!noLinkerStripDead && (triple.getOS() == llvm::Triple::Linux ||
-                             triple.getOS() == llvm::Triple::FreeBSD ||
-                             triple.getOS() == llvm::Triple::Win32)) {
+  // Linker-level dead code elimination for ELF/wasm binaries using GNU or LLD
+  // linkers (based on the --gc-sections flag) requires a separate section per
+  // symbol.
+  // The Apple ld64 on macOS supports a similar flag (-dead_strip) that doesn't
+  // require emitting the symbols into different sections.
+  // On Windows, the MSVC link.exe / lld-link.exe has `/REF`; LLD enforces
+  // separate sections with LTO, so do the same here.
+  if (!noLinkerStripDead && !triple.isOSBinFormatMachO()) {
     targetOptions.FunctionSections = true;
     targetOptions.DataSections = true;
   }