[WASM SIMD] Implement horizontal add for float and integer types.

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 116 matching lines @@
   V(ArmF32x4Splat)                 \
   V(ArmF32x4ExtractLane)           \
   V(ArmF32x4ReplaceLane)           \
   V(ArmF32x4SConvertI32x4)         \
   V(ArmF32x4UConvertI32x4)         \
   V(ArmF32x4Abs)                   \
   V(ArmF32x4Neg)                   \
   V(ArmF32x4RecipApprox)           \
   V(ArmF32x4RecipSqrtApprox)       \
   V(ArmF32x4Add)                   \
+  V(ArmF32x4AddHoriz)              \
   V(ArmF32x4Sub)                   \
   V(ArmF32x4Mul)                   \
   V(ArmF32x4Min)                   \
   V(ArmF32x4Max)                   \
   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(ArmI32x4AddHoriz)              \
   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(ArmI16x8AddHoriz)              \
   V(ArmI16x8Sub)                   \
   V(ArmI16x8SubSaturateS)          \
   V(ArmI16x8Mul)                   \
   V(ArmI16x8MinS)                  \
   V(ArmI16x8MaxS)                  \
   V(ArmI16x8Eq)                    \
   V(ArmI16x8Ne)                    \
   V(ArmI16x8LtS)                   \
   V(ArmI16x8LeS)                   \
   V(ArmI16x8UConvertI8x16Low)      \
@@ skipping 86 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_