diff --git a/clang/lib/Driver/ToolChains/AIX.cpp b/clang/lib/Driver/ToolChains/AIX.cpp
--- a/clang/lib/Driver/ToolChains/AIX.cpp
+++ b/clang/lib/Driver/ToolChains/AIX.cpp
@@ -164,7 +164,7 @@
   }
 
   auto getCrt0Basename = [&Args, IsArch32Bit] {
-    if (Arg *A = Args.getLastArg(options::OPT_p, options::OPT_pg)) {
+    if (Arg *A = Args.getLastArgNoClaim(options::OPT_p, options::OPT_pg)) {
       // Enable gprofiling when "-pg" is specified.
       if (A->getOption().matches(options::OPT_pg))
         return IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o";