[WASM SIMD] Implement packing and unpacking integer conversions.

src/compiler/arm/instruction-codes-arm.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_ARM_INSTRUCTION_CODES_ARM_H_
 #define V8_COMPILER_ARM_INSTRUCTION_CODES_ARM_H_
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 130 matching lines @@
   V(ArmF32x4RecipRefine)           \
   V(ArmF32x4RecipSqrtRefine)       \
   V(ArmF32x4Eq)                    \
   V(ArmF32x4Ne)                    \
   V(ArmF32x4Lt)                    \
   V(ArmF32x4Le)                    \
   V(ArmI32x4Splat)                 \
   V(ArmI32x4ExtractLane)           \
   V(ArmI32x4ReplaceLane)           \
   V(ArmI32x4SConvertF32x4)         \
+  V(ArmI32x4SConvertI16x8Low)      \
+  V(ArmI32x4SConvertI16x8High)     \
   V(ArmI32x4Neg)                   \
   V(ArmI32x4Shl)                   \
   V(ArmI32x4ShrS)                  \
   V(ArmI32x4Add)                   \
   V(ArmI32x4Sub)                   \
   V(ArmI32x4Mul)                   \
   V(ArmI32x4MinS)                  \
   V(ArmI32x4MaxS)                  \
   V(ArmI32x4Eq)                    \
   V(ArmI32x4Ne)                    \
   V(ArmI32x4LtS)                   \
   V(ArmI32x4LeS)                   \
   V(ArmI32x4UConvertF32x4)         \
+  V(ArmI32x4UConvertI16x8Low)      \
+  V(ArmI32x4UConvertI16x8High)     \
   V(ArmI32x4ShrU)                  \
   V(ArmI32x4MinU)                  \
   V(ArmI32x4MaxU)                  \
   V(ArmI32x4LtU)                   \
   V(ArmI32x4LeU)                   \
   V(ArmI16x8Splat)                 \
   V(ArmI16x8ExtractLane)           \
   V(ArmI16x8ReplaceLane)           \
+  V(ArmI16x8SConvertI8x16Low)      \
+  V(ArmI16x8SConvertI8x16High)     \
   V(ArmI16x8Neg)                   \
   V(ArmI16x8Shl)                   \
   V(ArmI16x8ShrS)                  \
+  V(ArmI16x8SConvertI32x4)         \
   V(ArmI16x8Add)                   \
   V(ArmI16x8AddSaturateS)          \
   V(ArmI16x8Sub)                   \
   V(ArmI16x8SubSaturateS)          \
   V(ArmI16x8Mul)                   \
   V(ArmI16x8MinS)                  \
   V(ArmI16x8MaxS)                  \
   V(ArmI16x8Eq)                    \
   V(ArmI16x8Ne)                    \
   V(ArmI16x8LtS)                   \
   V(ArmI16x8LeS)                   \
+  V(ArmI16x8UConvertI8x16Low)      \
+  V(ArmI16x8UConvertI8x16High)     \
   V(ArmI16x8ShrU)                  \
+  V(ArmI16x8UConvertI32x4)         \
   V(ArmI16x8AddSaturateU)          \
   V(ArmI16x8SubSaturateU)          \
   V(ArmI16x8MinU)                  \
   V(ArmI16x8MaxU)                  \
   V(ArmI16x8LtU)                   \
   V(ArmI16x8LeU)                   \
   V(ArmI8x16Splat)                 \
   V(ArmI8x16ExtractLane)           \
   V(ArmI8x16ReplaceLane)           \
   V(ArmI8x16Neg)                   \
   V(ArmI8x16Shl)                   \
   V(ArmI8x16ShrS)                  \
+  V(ArmI8x16SConvertI16x8)         \
   V(ArmI8x16Add)                   \
   V(ArmI8x16AddSaturateS)          \
   V(ArmI8x16Sub)                   \
   V(ArmI8x16SubSaturateS)          \
   V(ArmI8x16Mul)                   \
   V(ArmI8x16MinS)                  \
   V(ArmI8x16MaxS)                  \
   V(ArmI8x16Eq)                    \
   V(ArmI8x16Ne)                    \
   V(ArmI8x16LtS)                   \
   V(ArmI8x16LeS)                   \
   V(ArmI8x16ShrU)                  \
+  V(ArmI8x16UConvertI16x8)         \
   V(ArmI8x16AddSaturateU)          \
   V(ArmI8x16SubSaturateU)          \
   V(ArmI8x16MinU)                  \
   V(ArmI8x16MaxU)                  \
   V(ArmI8x16LtU)                   \
   V(ArmI8x16LeU)                   \
   V(ArmS128Zero)                   \
   V(ArmS128And)                    \
   V(ArmS128Or)                     \
   V(ArmS128Xor)                    \
@@ skipping 22 matching lines @@
   V(Operand2_R_ASR_R) /* %r0 ASR %r1 */ \
   V(Operand2_R_LSL_R) /* %r0 LSL %r1 */ \
   V(Operand2_R_LSR_R) /* %r0 LSR %r1 */ \
   V(Operand2_R_ROR_R) /* %r0 ROR %r1 */
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_ARM_INSTRUCTION_CODES_ARM_H_