Implement LSR instructions for the integrated ARM assembler.

src/IceAssemblerARM32.h

 //===- subzero/src/IceAssemblerARM32.h - Assembler for ARM32 ----*- C++ -*-===//
 //
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===----------------------------------------------------------------------===//
 //
@@ skipping 204 matching lines @@
 
   void ldr(const Operand *OpRt, const Operand *OpAddress, CondARM32::Cond Cond,
            const TargetLowering *Lowering) {
     const TargetInfo TInfo(Lowering);
     ldr(OpRt, OpAddress, Cond, TInfo);
   }
 
   void lsl(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
            bool SetFlags, CondARM32::Cond Cond);
 
+  void lsr(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
+           bool SetFlags, CondARM32::Cond Cond);
+
   void mov(const Operand *OpRd, const Operand *OpSrc, CondARM32::Cond Cond);
 
   void movw(const Operand *OpRd, const Operand *OpSrc, CondARM32::Cond Cond);
 
   void movt(const Operand *OpRd, const Operand *OpSrc, CondARM32::Cond Cond);
 
   void mla(const Operand *OpRd, const Operand *OpRn, const Operand *OpRm,
            const Operand *OpRa, CondARM32::Cond Cond);
 
   void mul(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
@@ skipping 134 matching lines @@
   // Pattern cccc011100x1dddd1111mmmm0001nnn where cccc=Cond,
   // x=Opcode, dddd=Rd, nnnn=Rn, mmmm=Rm.
   void emitDivOp(CondARM32::Cond Cond, IValueT Opcode, IValueT Rd, IValueT Rn,
                  IValueT Rm, const char *InstName);
 
   // Pattern ccccxxxxxxxfnnnnddddssss1001mmmm where cccc=Cond, dddd=Rd, nnnn=Rn,
   // mmmm=Rm, ssss=Rs, f=SetFlags and xxxxxxx=Opcode.
   void emitMulOp(CondARM32::Cond Cond, IValueT Opcode, IValueT Rd, IValueT Rn,
                  IValueT Rm, IValueT Rs, bool SetFlags, const char *InstName);
 
+  // Pattern cccc0001101s0000ddddxxxxxtt0mmmm where cccc=Cond, s=SetFlags,
+  // dddd=Rd, mmmm=Rm, tt=Shift, and xxxxx is defined by OpSrc1. OpSrc1 defines
+  // either xxxxx=Imm5, or xxxxx=ssss0 where ssss=Rs.
+  void emitShift(const CondARM32::Cond Cond,
+                 const OperandARM32::ShiftKind Shift, const Operand *OpRd,
+                 const Operand *OpRm, const Operand *OpSrc1,
+                 const bool SetFlags, const char *InstName);
+
   // Implements various forms of Unsigned extend value, using pattern
   // ccccxxxxxxxxnnnnddddrr000111mmmm where cccc=Cond, xxxxxxxx<<20=Opcode,
   // nnnn=Rn, dddd=Rd, rr=Rotation, and mmmm=Rm.
   void emitUxt(CondARM32::Cond, IValueT Opcode, IValueT Rd, IValueT Rn,
                IValueT Rm, RotationValue Rotation, const char *InstName);
 
   // Pattern cccctttxxxxnnnn0000iiiiiiiiiiii where cccc=Cond, nnnn=Rn,
   // ttt=Instruction type (derived from OpSrc1), iiiiiiiiiiii is derived from
   // OpSrc1, and xxxx=Opcode.
   void emitCompareOp(CondARM32::Cond Cond, IValueT Opcode, const Operand *OpRn,
@@ skipping 11 matching lines @@
   // where cccc=Cond, xxxxxxx<<21=Opcode, dddd=Rd, s=SetFlags, and
   // iiiiiiiiiiiiiiii=Imm16.
   void emitMovwt(CondARM32::Cond Cond, bool IsMovw, const Operand *OpRd,
                  const Operand *OpSrc, const char *MovName);
 };
 
 } // end of namespace ARM32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEASSEMBLERARM32_H