Emit VMLS for multiply-subtract on ARM.

test/cctest/test-disasm-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 549 matching lines @@
     COMPARE(vstm(ia, r6, s0, s31),
             "ec860a20       vstmia r6, {s0-s31}");
     COMPARE(vldm(ia, r7, s0, s31),
             "ec970a20       vldmia r7, {s0-s31}");
 
     COMPARE(vmla(d2, d1, d0),
             "ee012b00       vmla.f64 d2, d1, d0");
     COMPARE(vmla(d6, d4, d5, cc),
             "3e046b05       vmla.f64cc d6, d4, d5");
 
+    COMPARE(vmls(d2, d1, d0),
+            "ee012b40       vmls.f64 d2, d1, d0");
+    COMPARE(vmls(d6, d4, d5, cc),
+            "3e046b45       vmls.f64cc d6, d4, d5");
+
     COMPARE(vcvt_u32_f64(s0, d0),
             "eebc0bc0       vcvt.u32.f64 s0, d0");
     COMPARE(vcvt_s32_f64(s0, d0),
             "eebd0bc0       vcvt.s32.f64 s0, d0");
     COMPARE(vcvt_f64_u32(d0, s1),
             "eeb80b60       vcvt.f64.u32 d0, s1");
     COMPARE(vcvt_f64_s32(d0, s1),
             "eeb80be0       vcvt.f64.s32 d0, s1");
     COMPARE(vcvt_f32_s32(s0, s2),
             "eeb80ac1       vcvt.f32.s32 s0, s2");
@@ skipping 276 matching lines @@
     COMPARE(strd(r8, r9, MemOperand(r9, -127, PostIndex)),
             "e04987ff       strd r8, [r9], #-127");
     COMPARE(strd(r10, fp, MemOperand(fp, 127, PreIndex)),
             "e1eba7ff       strd r10, [fp, #+127]!");
     COMPARE(strd(ip, sp, MemOperand(sp, -127, PreIndex)),
             "e16dc7ff       strd ip, [sp, #-127]!");
   }
 
   VERIFY_RUN();
 }