Add ISPC GPU support

Author: Vsevolod-Livinskij

src/context.h

@@ -167,10 +167,14 @@ class EmitCtx {
     void setSYCLPrefix(std::string _val) { sycl_prefix = std::move(_val); }
     std::string getSYCLPrefix() { return sycl_prefix; }
 
+    void setISPCPrefix(std::string _val) { ispc_prefix = std::move(_val); }
+    std::string getISPCPrefix() { return ispc_prefix; }
+
   private:
     std::shared_ptr<EmitPolicy> emit_policy;
     bool ispc_types;
     bool sycl_access;
     std::string sycl_prefix;
+    std::string ispc_prefix;
 };
 } // namespace yarpgen

src/data.cpp

@@ -50,6 +50,8 @@ std::string ScalarVar::getName(std::shared_ptr<EmitCtx> ctx) {
     std::string ret;
     if (!ctx->getSYCLPrefix().empty())
         ret = ctx->getSYCLPrefix();
+    else if (!ctx->getISPCPrefix().empty())
+        ret = ctx->getISPCPrefix();
     ret += Data::getName(ctx);
     if (ctx->useSYCLAccess())
         ret += "[0]";
@@ -123,6 +125,17 @@ std::shared_ptr<Array> Array::create(std::shared_ptr<PopulateCtx> ctx,
     return new_array;
 }
 
+std::string Array::getName(std::shared_ptr<EmitCtx> ctx) {
+    if (!ctx)
+        ERROR("Can't give a name without a context");
+
+    std::string ret;
+    if (!ctx->getISPCPrefix().empty())
+        ret = ctx->getISPCPrefix();
+    ret += Data::getName(ctx);
+    return ret;
+}
+
 void Iterator::setParameters(std::shared_ptr<Expr> _start,
                              std::shared_ptr<Expr> _end,
                              std::shared_ptr<Expr> _step) {

src/data.h

@@ -126,6 +126,7 @@ class Array : public Data {
 
     Array(std::string _name, const std::shared_ptr<ArrayType> &_type,
           IRValue _val);
+    std::string getName(std::shared_ptr<EmitCtx> ctx) override;
     IRValue getInitValues() { return init_vals; }
     array_val_t getCurrentValues() { return cur_vals; }
     void setValue(IRValue _val, std::deque<size_t> &span,