ssa: add llvm debug info

ssa/stmt_builder.go

@@ -287,6 +287,24 @@ func (b Builder) Times(n Expr, loop func(i Expr)) {
 	b.blk.last = blks[2].last
 }
 
+// -----------------------------------------------------------------------------
+
+func (b Builder) Debug(v Expr, dv DIVar, scope DIScope, pos token.Position) {
+	b.Pkg.DIBuilder().Debug(v, dv, scope, pos, b.blk)
+}
+
+func (b Builder) DebugValue(v Expr, dv DIVar, scope DIScope, pos token.Position) {
+	b.Pkg.DIBuilder().DebugValue(v, dv, scope, pos, b.blk)
+}
+
+func (b Builder) DIVarParam(f Function, pos token.Position, varName string, vt DIType, argNo int) DIVar {
+	return b.Pkg.DIBuilder().DIVarParam(f, pos, varName, vt, argNo)
+}
+
+func (b Builder) DIVarAuto(f Function, pos token.Position, varName string, vt DIType) DIVar {
+	return b.Pkg.DIBuilder().DIVarAuto(f, pos, varName, vt)
+}
+
 // -----------------------------------------------------------------------------
 /*
 type caseStmt struct {