Removed SigSpec::extend_xx() api

kernel/rtlil.cc

@@ -2673,24 +2673,6 @@ void RTLIL::SigSpec::append_bit(const RTLIL::SigBit &bit)
 	check();
 }
 
-void RTLIL::SigSpec::extend_xx(int width, bool is_signed)
-{
-	cover("kernel.rtlil.sigspec.extend_xx");
-
-	pack();
-
-	if (width_ > width)
-		remove(width, width_ - width);
-	
-	if (width_ < width) {
-		RTLIL::SigBit padding = width_ > 0 ? (*this)[width_ - 1] : RTLIL::State::S0;
-		if (!is_signed && (padding == RTLIL::State::S1 || padding.wire))
-			padding = RTLIL::State::S0;
-		while (width_ < width)
-			append(padding);
-	}
-}
-
 void RTLIL::SigSpec::extend_u0(int width, bool is_signed)
 {
 	cover("kernel.rtlil.sigspec.extend_u0");

kernel/rtlil.h

@@ -651,7 +651,6 @@ public:
 	void append(const RTLIL::SigSpec &signal);
 	void append_bit(const RTLIL::SigBit &bit);
 
-	void extend_xx(int width, bool is_signed = false);
 	void extend_u0(int width, bool is_signed = false);
 
 	RTLIL::SigSpec repeat(int num) const;

passes/proc/proc_arst.cc

@@ -262,7 +262,7 @@ struct ProcArstPass : public Pass {
 								for (auto &chunk : act.first.chunks())
 									if (chunk.wire && chunk.wire->attributes.count("\\init")) {
 										RTLIL::SigSpec value = chunk.wire->attributes.at("\\init");
-										value.extend_xx(chunk.wire->width, false);
+										value.extend_u0(chunk.wire->width, false);
 										arst_sig.append(chunk);
 										arst_val.append(value.extract(chunk.offset, chunk.width));
 									}