projects/ddmd: dmd/TypeFunction.d comparison

beginning of 2.036 branch

comparison

equal deleted inserted replaced

-:df6d0f967680
+:ae5b11064a9a
 	 * through a hidden pointer to the caller's stack.
 	 */
 RET retStyle()
 	{
 		//printf("TypeFunction.retStyle() %s\n", toChars());
-version (DMDV2) {
+version (DMDV2)
+{
 		if (isref)
 			return RET.RETregs;			// returns a pointer
 }
 		Type tn = next.toBasetype();
+	    Type tns = tn;
-		if (tn.ty == TY.Tstruct)
+	    ulong sz = tn.size();
+version(SARRAYVALUE)
+{
+		if (tn.ty == Tsarray)
+		{
+			do
+			{
+				tns = tns.nextOf().toBasetype();
+			} while (tns.ty == Tsarray);
+			if (tns.ty != Tstruct)
+			{
+				if (global.params.isLinux && linkage != LINKd)
+				{}
+				else
+				{
+					switch (sz)
+					{   case 1:
+						case 2:
+						case 4:
+						case 8:
+						return RETregs;	// return small structs in regs
+									// (not 3 byte structs!)
+						default:
+						break;
+					}
+				}
+				return RETstack;
+			}
+		}
+}
+		if (tns.ty == TY.Tstruct)
 		{
 			StructDeclaration sd = (cast(TypeStruct)tn).sym;
 			if (global.params.isLinux && linkage != LINK.LINKd) {
 				;
 			}
-///version (DMDV2) {
+///version (DMDV2) { // TODO:
-			else if (sd.dtor || sd.cpctor) {
+			else if (sd.dtor || sd.cpctor)
-				;
+			{
 			}
 ///}
 			else
 			{
-				switch (cast(int)tn.size())
+				switch (sz)
 				{
 					case 1:
 					case 2:
 					case 4:
 					case 8:

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