diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index a16469f931884..1a74a3a1e4cc1 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -680,6 +680,12 @@ void tools::addLTOOptions(const ToolChain &ToolChain, const ArgList &Args,
   else if (IsThinLTO && IsOSAIX)
     CmdArgs.push_back(Args.MakeArgString(Twine("-bdbg:thinlto")));
 
+  // Matrix intrinsic lowering happens at link time with ThinLTO. Enable
+  // LowerMatrixIntrinsicsPass, which is transitively called by
+  // buildThinLTODefaultPipeline under EnableMatrix.
+  if (IsThinLTO && Args.hasArg(options::OPT_fenable_matrix))
+    CmdArgs.push_back(
+        Args.MakeArgString(Twine(PluginOptPrefix) + "-enable-matrix"));
 
   StringRef Parallelism = getLTOParallelism(Args, D);
   if (!Parallelism.empty())
diff --git a/clang/test/Driver/matrix.c b/clang/test/Driver/matrix.c
new file mode 100644
index 0000000000000..15b44ce5a4ec1
--- /dev/null
+++ b/clang/test/Driver/matrix.c
@@ -0,0 +1,8 @@
+// RUN: touch %t.o
+// RUN: %clang -flto=thin -fenable-matrix %t.o -### --target=powerpc64-ibm-aix-xcoff 2>&1 \
+// RUN:     | FileCheck %s -check-prefix=CHECK-THINLTO-MATRIX-AIX
+// CHECK-THINLTO-MATRIX-AIX: "-bplugin_opt:-enable-matrix"
+
+// RUN: %clang -flto=thin -fenable-matrix %t.o -### --target=x86_64-unknown-linux 2>&1 \
+// RUN:     | FileCheck %s -check-prefix=CHECK-THINLTO-MATRIX
+// CHECK-THINLTO-MATRIX: "-plugin-opt=-enable-matrix"