[ia32][wasm] Add I8x16/I16x8 Splat/ExtractLane/ReplaceLane

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 7b831fdab8fcfddac25fd7dbedfb9107a9516063..960525a6b76e4528bb25319266c5007dace50e4a 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -2136,6 +2136,25 @@ void MacroAssembler::Move(XMMRegister dst, uint64_t src) {
   }
 }
 
+void MacroAssembler::Pxor(XMMRegister dst, const Operand& src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vpxor(dst, dst, src);
+  } else {
+    pxor(dst, src);
+  }
+}
+
+void MacroAssembler::Pshuflw(XMMRegister dst, const Operand& src,
+                             uint8_t shuffle) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vpshuflw(dst, src, shuffle);
+  } else {
+    pshuflw(dst, src, shuffle);
+  }
+}
+
 void MacroAssembler::Pshufd(XMMRegister dst, const Operand& src,
                             uint8_t shuffle) {
   if (CpuFeatures::IsSupported(AVX)) {
@@ -2146,6 +2165,48 @@ void MacroAssembler::Pshufd(XMMRegister dst, const Operand& src,
   }
 }
 
+void MacroAssembler::Pshufb(XMMRegister dst, const Operand& src) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vpshufb(dst, dst, src);
+    return;
+  }
+  if (CpuFeatures::IsSupported(SSSE3)) {
+    CpuFeatureScope sse_scope(this, SSSE3);
+    pshufb(dst, src);
+    return;
+  }
+  UNREACHABLE();
+}
+
+void MacroAssembler::Pextrb(Register dst, XMMRegister src, int8_t imm8) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vpextrb(dst, src, imm8);
+    return;
+  }
+  if (CpuFeatures::IsSupported(SSE4_1)) {
+    CpuFeatureScope sse_scope(this, SSE4_1);
+    pextrb(dst, src, imm8);
+    return;
+  }
+  UNREACHABLE();
+}
+
+void MacroAssembler::Pextrw(Register dst, XMMRegister src, int8_t imm8) {
+  if (CpuFeatures::IsSupported(AVX)) {
+    CpuFeatureScope scope(this, AVX);
+    vpextrw(dst, src, imm8);
+    return;
+  }
+  if (CpuFeatures::IsSupported(SSE4_1)) {
+    CpuFeatureScope sse_scope(this, SSE4_1);
+    pextrw(dst, src, imm8);
+    return;
+  }
+  UNREACHABLE();
+}
+
 void MacroAssembler::Pextrd(Register dst, XMMRegister src, int8_t imm8) {
   if (imm8 == 0) {
     Movd(dst, src);