Emit VMLS for multiply-subtract on ARM.

src/arm/assembler-arm.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 2518 matching lines @@
   dst.split_code(&vd, &d);
   int vn, n;
   src1.split_code(&vn, &n);
   int vm, m;
   src2.split_code(&vm, &m);
   emit(cond | 0x1C*B23 | d*B22 | vn*B16 | vd*B12 | 0x5*B9 | B8 | n*B7 | m*B5 |
        vm);
 }
 
 
+void Assembler::vmls(const DwVfpRegister dst,
+                     const DwVfpRegister src1,
+                     const DwVfpRegister src2,
+                     const Condition cond) {
+  // Instruction details available in ARM DDI 0406C.b, A8-932.
+  // cond(31-28) | 11100(27-23) | D(22) | 00(21-20) | Vn(19-16) |
+  // Vd(15-12) | 101(11-9) | sz=1(8) | N(7) | op=1(6) | M(5) | 0(4) | Vm(3-0)
+  int vd, d;
+  dst.split_code(&vd, &d);
+  int vn, n;
+  src1.split_code(&vn, &n);
+  int vm, m;
+  src2.split_code(&vm, &m);
+  emit(cond | 0x1C*B23 | d*B22 | vn*B16 | vd*B12 | 0x5*B9 | B8 | n*B7 | B6 |
+       m*B5 | vm);
+}
+
+
 void Assembler::vdiv(const DwVfpRegister dst,
                      const DwVfpRegister src1,
                      const DwVfpRegister src2,
                      const Condition cond) {
   // Dd = vdiv(Dn, Dm) double precision floating point division.
   // Dd = D:Vd; Dm=M:Vm; Dn=N:Vm.
   // Instruction details available in ARM DDI 0406C.b, A8-882.
   // cond(31-28) | 11101(27-23)| D(22) | 00(21-20) | Vn(19-16) |
   // Vd(15-12) | 101(11-9) | sz=1(8) | N(7) | 0(6) | M(5) | 0(4) | Vm(3-0)
   ASSERT(CpuFeatures::IsEnabled(VFP2));
@@ skipping 476 matching lines @@
 
   // Since a constant pool was just emitted, move the check offset forward by
   // the standard interval.
   next_buffer_check_ = pc_offset() + kCheckPoolInterval;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM