diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -599,6 +599,10 @@
                                         options::OPT_gno_strict_dwarf, true))
       CmdArgs.push_back(
           Args.MakeArgString(Twine(PluginOptPrefix) + "-strict-dwarf=true"));
+
+    if (Args.getLastArg(options::OPT_mabi_EQ_vec_extabi))
+      CmdArgs.push_back(
+          Args.MakeArgString(Twine(PluginOptPrefix) + "-vec-extabi"));
   }
 
   bool UseSeparateSections =
diff --git a/clang/test/Driver/lto-aix.c b/clang/test/Driver/lto-aix.c
--- a/clang/test/Driver/lto-aix.c
+++ b/clang/test/Driver/lto-aix.c
@@ -27,6 +27,16 @@
 // O2: "-bplugin_opt:-O2"
 // O3: "-bplugin_opt:-O3"
 //
+// vec-extabi option
+// RUN: %clang --target=powerpc-ibm-aix --sysroot %S/Inputs/aix_ppc_tree %s \
+// RUN:   -fuse-ld=ld -flto -mabi=vec-extabi -### 2>&1 \
+// RUN:   | FileCheck --check-prefix=VECEXTABI %s
+// RUN: %clang --target=powerpc-ibm-aix --sysroot %S/Inputs/aix_ppc_tree %s \
+// RUN:   -fuse-ld=ld -flto -### 2>&1 | FileCheck --check-prefix=NOVECEXTABI %s
+//
+// VECEXTABI: "-bplugin_opt:-vec-extabi"
+// NOVECEXTABI-NOT: "-bplugin_opt:-vec-extabi"
+//
 // Test debugging options
 // RUN: %clang --target=powerpc-ibm-aix -### %s -flto -fuse-ld=ld -gdbx 2>&1 \
 // RUN:   | FileCheck -check-prefix=DBX %s