diff --git a/test/libsolidity/InlineAssembly.cpp b/test/libsolidity/InlineAssembly.cpp
index 63499d2d2..a88197493 100644
--- a/test/libsolidity/InlineAssembly.cpp
+++ b/test/libsolidity/InlineAssembly.cpp
@@ -203,37 +203,6 @@ BOOST_AUTO_TEST_CASE(constants)
 	BOOST_CHECK(successParse("{ pop(mul(7, 8)) }"));
 }
 
-BOOST_AUTO_TEST_CASE(vardecl)
-{
-	BOOST_CHECK(successParse("{ let x := 7 }"));
-}
-
-BOOST_AUTO_TEST_CASE(vardecl_name_clashes)
-{
-	CHECK_PARSE_ERROR("{ let x := 1 let x := 2 }", DeclarationError, "Variable name x already taken in this scope.");
-}
-
-BOOST_AUTO_TEST_CASE(vardecl_multi)
-{
-	BOOST_CHECK(successParse("{ function f() -> x, y {} let x, y := f() }"));
-}
-
-BOOST_AUTO_TEST_CASE(vardecl_multi_conflict)
-{
-	CHECK_PARSE_ERROR("{ function f() -> x, y {} let x, x := f() }", DeclarationError, "Variable name x already taken in this scope.");
-}
-
-BOOST_AUTO_TEST_CASE(vardecl_bool)
-{
-	successParse("{ let x := true }");
-	successParse("{ let x := false }");
-}
-
-BOOST_AUTO_TEST_CASE(vardecl_empty)
-{
-	BOOST_CHECK(successParse("{ let x }"));
-}
-
 BOOST_AUTO_TEST_CASE(functional)
 {
 	BOOST_CHECK(successParse("{ let x := 2 x := add(add(7, mul(6, x)), mul(7, 8)) }"));
@@ -259,17 +228,6 @@ BOOST_AUTO_TEST_CASE(functional_assignment_complex)
 	BOOST_CHECK(successParse("{ let x := 2 x := add(add(7, mul(6, x)), mul(7, 8)) }"));
 }
 
-BOOST_AUTO_TEST_CASE(vardecl_complex)
-{
-	BOOST_CHECK(successParse("{ let y := 2 let x := add(add(7, mul(6, y)), mul(7, 8)) }"));
-}
-
-BOOST_AUTO_TEST_CASE(variable_use_before_decl)
-{
-	CHECK_PARSE_ERROR("{ x := 2 let x := 3 }", DeclarationError, "Variable x used before it was declared.");
-	CHECK_PARSE_ERROR("{ let x := mul(2, x) }", DeclarationError, "Variable x used before it was declared.");
-}
-
 BOOST_AUTO_TEST_CASE(for_statement)
 {
 	BOOST_CHECK(successParse("{ for {} 1 {} {} }"));
diff --git a/test/libyul/yulSyntaxTests/vardecl.yul b/test/libyul/yulSyntaxTests/vardecl.yul
new file mode 100644
index 000000000..64fd69d6f
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl.yul
@@ -0,0 +1,5 @@
+{
+    let x := 7
+}
+// ====
+// dialect: yul
diff --git a/test/libyul/yulSyntaxTests/vardecl_bool.yul b/test/libyul/yulSyntaxTests/vardecl_bool.yul
new file mode 100644
index 000000000..93ec762b0
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_bool.yul
@@ -0,0 +1,6 @@
+{
+    let x := true
+    let y := false
+}
+// ====
+// dialect: evm
diff --git a/test/libyul/yulSyntaxTests/vardecl_complex.yul b/test/libyul/yulSyntaxTests/vardecl_complex.yul
new file mode 100644
index 000000000..117e1d997
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_complex.yul
@@ -0,0 +1,4 @@
+{
+    let y := 2
+    let x := add(add(7, mul(6, y)), mul(7, 8))
+}
diff --git a/test/libyul/yulSyntaxTests/vardecl_empty.yul b/test/libyul/yulSyntaxTests/vardecl_empty.yul
new file mode 100644
index 000000000..dc536c67a
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_empty.yul
@@ -0,0 +1,3 @@
+{
+	let x
+}
diff --git a/test/libyul/yulSyntaxTests/vardecl_multi.yul b/test/libyul/yulSyntaxTests/vardecl_multi.yul
new file mode 100644
index 000000000..abf04b746
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_multi.yul
@@ -0,0 +1,4 @@
+{
+    function f() -> x, y {}
+    let x, y := f()
+}
diff --git a/test/libyul/yulSyntaxTests/vardecl_multi_conflict.yul b/test/libyul/yulSyntaxTests/vardecl_multi_conflict.yul
new file mode 100644
index 000000000..c40c79740
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_multi_conflict.yul
@@ -0,0 +1,6 @@
+{
+	function f() -> x, y {}
+	let x, x := f()
+}
+// ----
+// DeclarationError 1395: (28-43): Variable name x already taken in this scope.
diff --git a/test/libyul/yulSyntaxTests/vardecl_name_clashes.yul b/test/libyul/yulSyntaxTests/vardecl_name_clashes.yul
new file mode 100644
index 000000000..2906078cf
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/vardecl_name_clashes.yul
@@ -0,0 +1,6 @@
+{
+	let x := 1
+	let x := 2
+}
+// ----
+// DeclarationError 1395: (15-25): Variable name x already taken in this scope.
diff --git a/test/libyul/yulSyntaxTests/variable_use_before_decl_1.yul b/test/libyul/yulSyntaxTests/variable_use_before_decl_1.yul
new file mode 100644
index 000000000..76bcd1d0d
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/variable_use_before_decl_1.yul
@@ -0,0 +1,6 @@
+{
+	x := 2
+	let x := 3
+}
+// ----
+// DeclarationError 1133: (3-4): Variable x used before it was declared.
diff --git a/test/libyul/yulSyntaxTests/variable_use_before_decl_2.yul b/test/libyul/yulSyntaxTests/variable_use_before_decl_2.yul
new file mode 100644
index 000000000..c6612fd8c
--- /dev/null
+++ b/test/libyul/yulSyntaxTests/variable_use_before_decl_2.yul
@@ -0,0 +1,6 @@
+{
+	let x := mul(2, x)
+}
+
+// ----
+// DeclarationError 4990: (19-20): Variable x used before it was declared.