PPC/s390: [wasm-simd][x64][liftoff] Implement extended add pairwise

Port 8136e399

Original Commit Message:

    Extract code sequence into macro-assembler for reuse between Liftoff and
    TurboFan.

    Small tweaks to macro-assembler functions  Pmaddwd and Pmaddubsw to move
    src1 to dst on SSE when src != dst. TurboFan codegen won't be affected
    by this since it sets the right restrictions in instruction-selector.

R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Idaff4944dbb1ec5e6d7e798b6255a90744155006
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2713842Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72928}

src/wasm/baseline/ppc/liftoff-assembler-ppc.h

@@ -1054,6 +1054,16 @@ void LiftoffAssembler::emit_i32x4_dot_i16x8_s(LiftoffRegister dst,
   bailout(kSimd, "i32x4_dot_i16x8_s");
 }
 
+void LiftoffAssembler::emit_i32x4_extadd_pairwise_i16x8_s(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i32x4.extadd_pairwise_i16x8_s");
+}
+
+void LiftoffAssembler::emit_i32x4_extadd_pairwise_i16x8_u(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i32x4.extadd_pairwise_i16x8_u");
+}
+
 void LiftoffAssembler::emit_i32x4_extmul_low_i16x8_s(LiftoffRegister dst,
                                                      LiftoffRegister src1,
                                                      LiftoffRegister src2) {
@@ -1206,6 +1216,16 @@ void LiftoffAssembler::emit_i16x8_replace_lane(LiftoffRegister dst,
   bailout(kUnsupportedArchitecture, "emit_i16x8replacelane");
 }
 
+void LiftoffAssembler::emit_i16x8_extadd_pairwise_i8x16_s(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i16x8.extadd_pairwise_i8x16_s");
+}
+
+void LiftoffAssembler::emit_i16x8_extadd_pairwise_i8x16_u(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i16x8.extadd_pairwise_i8x16_u");
+}
+
 void LiftoffAssembler::emit_i16x8_extract_lane_s(LiftoffRegister dst,
                                                  LiftoffRegister lhs,
                                                  uint8_t imm_lane_idx) {

src/wasm/baseline/s390/liftoff-assembler-s390.h

@@ -1757,6 +1757,16 @@ void LiftoffAssembler::emit_i32x4_dot_i16x8_s(LiftoffRegister dst,
   bailout(kSimd, "i32x4_dot_i16x8_s");
 }
 
+void LiftoffAssembler::emit_i32x4_extadd_pairwise_i16x8_s(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i32x4.extadd_pairwise_i16x8_s");
+}
+
+void LiftoffAssembler::emit_i32x4_extadd_pairwise_i16x8_u(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i32x4.extadd_pairwise_i16x8_u");
+}
+
 void LiftoffAssembler::emit_i32x4_extmul_low_i16x8_s(LiftoffRegister dst,
                                                      LiftoffRegister src1,
                                                      LiftoffRegister src2) {
@@ -1909,6 +1919,16 @@ void LiftoffAssembler::emit_i16x8_replace_lane(LiftoffRegister dst,
   bailout(kUnsupportedArchitecture, "emit_i16x8replacelane");
 }
 
+void LiftoffAssembler::emit_i16x8_extadd_pairwise_i8x16_s(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i16x8.extadd_pairwise_i8x16_s");
+}
+
+void LiftoffAssembler::emit_i16x8_extadd_pairwise_i8x16_u(LiftoffRegister dst,
+                                                          LiftoffRegister src) {
+  bailout(kSimd, "i16x8.extadd_pairwise_i8x16_u");
+}
+
 void LiftoffAssembler::emit_i16x8_extract_lane_s(LiftoffRegister dst,
                                                  LiftoffRegister lhs,
                                                  uint8_t imm_lane_idx) {