[wasm-simd] Disassembly for qfma on x64

Bug: v8:9415
Change-Id: I6cd413117fc5c949ed668d2dff2bbfbbc880ebcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863952Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64334}

src/diagnostics/x64/disasm-x64.cc

@@ -829,6 +829,11 @@ int DisassemblerX64::AVXInstruction(byte* data) {
                        NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));
         current += PrintRightXMMOperand(current);
         break;
+      case 0xB8:
+        AppendToBuffer("vfmadd231p%c %s,%s,", float_size_code(),
+                       NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));
+        current += PrintRightXMMOperand(current);
+        break;
       case 0xB9:
         AppendToBuffer("vfmadd231s%c %s,%s,", float_size_code(),
                        NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));
@@ -849,6 +854,11 @@ int DisassemblerX64::AVXInstruction(byte* data) {
                        NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));
         current += PrintRightXMMOperand(current);
         break;
+      case 0xBC:
+        AppendToBuffer("vfnmadd231p%c %s,%s,", float_size_code(),
+                       NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));
+        current += PrintRightXMMOperand(current);
+        break;
       case 0x9D:
         AppendToBuffer("vfnmadd132s%c %s,%s,", float_size_code(),
                        NameOfXMMRegister(regop), NameOfXMMRegister(vvvv));

test/cctest/test-disasm-x64.cc

@@ -852,6 +852,15 @@ TEST(DisasmX64) {
       __ vfnmsub213ss(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
       __ vfnmsub231ss(xmm0, xmm1, xmm2);
       __ vfnmsub231ss(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
+
+      __ vfmadd231ps(xmm0, xmm1, xmm2);
+      __ vfmadd231ps(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
+      __ vfnmadd231ps(xmm0, xmm1, xmm2);
+      __ vfnmadd231ps(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
+      __ vfmadd231pd(xmm0, xmm1, xmm2);
+      __ vfmadd231pd(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
+      __ vfnmadd231pd(xmm0, xmm1, xmm2);
+      __ vfnmadd231pd(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
     }
   }