Handle SIMD expressions in wasm2c (#1660)

SIMD (or any feature flags) is not supported by wasm2c. We handle the expressions in the switch statement, but assert for now.

1 files changed, 29 insertions, 0 deletions

diff --git a/src/c-writer.cc b/src/c-writer.cc
index d1129b20..db3f8a43 100644
--- a/src/c-writer.cc
+++ b/src/c-writer.cc
@@ -264,8 +264,11 @@ class CWriter {
   void Write(const UnaryExpr&);
   void Write(const TernaryExpr&);
   void Write(const SimdLaneOpExpr&);
+  void Write(const SimdLoadLaneExpr&);
+  void Write(const SimdStoreLaneExpr&);
   void Write(const SimdShuffleOpExpr&);
   void Write(const LoadSplatExpr&);
+  void Write(const LoadZeroExpr&);
 
   const WriteCOptions& options_;
   const Module* module_ = nullptr;
@@ -1572,6 +1575,16 @@ void CWriter::Write(const ExprList& exprs) {
         break;
       }
 
+      case ExprType::SimdLoadLane: {
+        Write(*cast<SimdLoadLaneExpr>(&expr));
+        break;
+      }
+
+      case ExprType::SimdStoreLane: {
+        Write(*cast<SimdStoreLaneExpr>(&expr));
+        break;
+      }
+
       case ExprType::SimdShuffleOp: {
         Write(*cast<SimdShuffleOpExpr>(&expr));
         break;
@@ -1581,6 +1594,10 @@ void CWriter::Write(const ExprList& exprs) {
         Write(*cast<LoadSplatExpr>(&expr));
         break;
 
+      case ExprType::LoadZero:
+        Write(*cast<LoadZeroExpr>(&expr));
+        break;
+
       case ExprType::Unreachable:
         Write("UNREACHABLE;", Newline());
         return;
@@ -2171,6 +2188,14 @@ void CWriter::Write(const SimdLaneOpExpr& expr) {
   PushType(result_type);
 }
 
+void CWriter::Write(const SimdLoadLaneExpr& expr) {
+  UNIMPLEMENTED("SIMD support");
+}
+
+void CWriter::Write(const SimdStoreLaneExpr& expr) {
+  UNIMPLEMENTED("SIMD support");
+}
+
 void CWriter::Write(const SimdShuffleOpExpr& expr) {
   Type result_type = expr.opcode.GetResultType();
   Write(StackVar(1, result_type), " = ", expr.opcode.GetName(), "(",
@@ -2195,6 +2220,10 @@ void CWriter::Write(const LoadSplatExpr& expr) {
   PushType(result_type);
 }
 
+void CWriter::Write(const LoadZeroExpr& expr) {
+  UNIMPLEMENTED("SIMD support");
+}
+
 void CWriter::WriteCHeader() {
   stream_ = h_stream_;
   std::string guard = GenerateHeaderGuard();