Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -7691,6 +7691,9 @@
     Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
                     options::OPT_msoft_float);
 
+    Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
+                    options::OPT_msingle_float);
+
     Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
                     options::OPT_mno_odd_spreg);
 
Index: test/Driver/mips-as.c
===================================================================
--- test/Driver/mips-as.c
+++ test/Driver/mips-as.c
@@ -281,3 +281,13 @@
 // RUN:   | FileCheck -check-prefix=NOODDSPREG --implicit-check-not=-modd-spreg %s
 // NOODDSPREG: as{{(.exe)?}}"
 // NOODDSPREG: -mno-odd-spreg
+//
+// RUN: %clang -target mips-linux-gnu -### -no-integrated-as -mdouble-float -msingle-float -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=SINGLEFLOAT --implicit-check-not=-mdouble-float %s
+// SINGLEFLOAT: as{{(.exe)?}}"
+// SINGLEFLOAT: -msingle-float
+//
+// RUN: %clang -target mips-linux-gnu -### -no-integrated-as -msingle-float -mdouble-float -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=DOUBLEFLOAT --implicit-check-not=-msingle-float %s
+// DOUBLEFLOAT: as{{(.exe)?}}"
+// DOUBLEFLOAT: -mdouble-float