Add mul instruction to ARM integrated assembler.

src/IceAssemblerARM32.h

Index: src/IceAssemblerARM32.h
diff --git a/src/IceAssemblerARM32.h b/src/IceAssemblerARM32.h
index d2523f610531529f02e6cc2c757c5020de9c1f65..427382a3eb7e2df0ef77ac1f945d2aa99572073d 100644
--- a/src/IceAssemblerARM32.h
+++ b/src/IceAssemblerARM32.h
@@ -131,13 +131,16 @@ public:
 
   void b(Label *L, CondARM32::Cond Cond);
 
+  void bx(RegARM32::GPRRegister Rm, CondARM32::Cond Cond = CondARM32::AL);
+
   void bkpt(uint16_t Imm16);
 
   void ldr(const Operand *OpRt, const Operand *OpAddress, CondARM32::Cond Cond);
 
   void mov(const Operand *OpRd, const Operand *OpSrc, CondARM32::Cond Cond);
 
-  void bx(RegARM32::GPRRegister Rm, CondARM32::Cond Cond = CondARM32::AL);
+  void mul(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
+           bool SetFlags, CondARM32::Cond Cond);
 
   void sbc(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
            bool SetFlags, CondARM32::Cond Cond);
@@ -180,6 +183,11 @@ private:
   void emitMemOp(CondARM32::Cond Cond, IValueT InstType, bool IsLoad,
                  bool IsByte, uint32_t Rt, uint32_t Address);
 
+  // Pattern ccccxxxxxxxfnnnnddddssss1001mmmm where cccc=Cond, dddd=Rd, nnnn=Rn,
+  // mmmm=Rm, ssss=Rs, f=SetCc, and xxxxxxx=Opcode.
+  void emitMulOp(CondARM32::Cond Cond, IValueT Opcode, IValueT Rd, IValueT Rn,
+                 IValueT Rm, IValueT Rs, bool SetCc);
+
   void emitBranch(Label *L, CondARM32::Cond, bool Link);
 
   // Encodes the given Offset into the branch instruction Inst.