[turbofan] Also optimize unsigned division by constant.

src/compiler/ia32/instruction-codes-ia32.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_IA32_INSTRUCTION_CODES_IA32_H_
 #define V8_COMPILER_IA32_INSTRUCTION_CODES_IA32_H_
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // IA32-specific opcodes that specify which assembly sequence to emit.
 // Most opcodes specify a single instruction.
 #define TARGET_ARCH_OPCODE_LIST(V) \
   V(IA32Add)                       \
   V(IA32And)                       \
   V(IA32Cmp)                       \
   V(IA32Test)                      \
   V(IA32Or)                        \
   V(IA32Xor)                       \
   V(IA32Sub)                       \
   V(IA32Imul)                      \
   V(IA32ImulHigh)                  \
+  V(IA32UmulHigh)                  \
   V(IA32Idiv)                      \
   V(IA32Udiv)                      \
   V(IA32Not)                       \
   V(IA32Neg)                       \
   V(IA32Shl)                       \
   V(IA32Shr)                       \
   V(IA32Sar)                       \
   V(IA32Ror)                       \
   V(SSEFloat64Cmp)                 \
   V(SSEFloat64Add)                 \
@@ skipping 56 matching lines @@
   V(M2I)  /* [      %r2*2 + K] */      \
   V(M4I)  /* [      %r2*4 + K] */      \
   V(M8I)  /* [      %r2*8 + K] */      \
   V(MI)   /* [              K] */
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_IA32_INSTRUCTION_CODES_IA32_H_