Add unfolded versions of the legacy (v3) exception-handling tests (#1672)

Author: keithw

tests/local/legacy-exceptions.wat …/legacy-exceptions/legacy-exceptions.wattests/local/legacy-exceptions.wat renamed to tests/local/legacy-exceptions/legacy-exceptions.wat tests/local/legacy-exceptions.wat renamed to tests/local/legacy-exceptions/legacy-exceptions.wat

@@ -0,0 +1,124 @@
+;; Test rethrow instruction.
+
+(module
+  (tag $e0)
+  (tag $e1)
+
+  (func (export "catch-rethrow-0")
+    try
+      throw $e0
+    catch $e0
+      rethrow 0
+    end
+  )
+
+  (func (export "catch-rethrow-1") (param i32) (result i32)
+    try (result i32)
+      throw $e0
+    catch $e0
+      local.get 0
+      i32.eqz
+      if
+        rethrow 1
+      end
+      i32.const 23
+    end
+  )
+
+  (func (export "catchall-rethrow-0")
+    try
+      throw $e0
+    catch_all
+      rethrow 0
+    end
+  )
+
+  (func (export "catchall-rethrow-1") (param i32) (result i32)
+    try (result i32)
+      throw $e0
+    catch_all
+      local.get 0
+      i32.eqz
+      if
+        rethrow 1
+      end
+      i32.const 23
+    end
+  )
+
+  (func (export "rethrow-nested") (param i32) (result i32)
+    try (result i32)
+      throw $e1
+    catch $e1
+      try (result i32)
+        throw $e0
+      catch $e0
+        local.get 0
+        i32.const 0
+        i32.eq
+        if
+          rethrow 1
+        end
+        local.get 0
+        i32.const 1
+        i32.eq
+        if
+          rethrow 2
+        end
+        i32.const 23
+      end
+    end
+  )
+
+  (func (export "rethrow-recatch") (param i32) (result i32)
+    try (result i32)
+      throw $e0
+    catch $e0
+      try (result i32)
+        local.get 0
+        i32.eqz
+        if
+          rethrow 2
+        end
+        i32.const 42
+      catch $e0
+        i32.const 23
+      end
+    end
+  )
+
+  (func (export "rethrow-stack-polymorphism")
+    try
+      throw $e0
+    catch $e0
+      i32.const 1
+      rethrow 0
+    end
+  )
+)
+
+(assert_exception (invoke "catch-rethrow-0"))
+
+(assert_exception (invoke "catch-rethrow-1" (i32.const 0)))
+(assert_return (invoke "catch-rethrow-1" (i32.const 1)) (i32.const 23))
+
+(assert_exception (invoke "catchall-rethrow-0"))
+
+(assert_exception (invoke "catchall-rethrow-1" (i32.const 0)))
+(assert_return (invoke "catchall-rethrow-1" (i32.const 1)) (i32.const 23))
+(assert_exception (invoke "rethrow-nested" (i32.const 0)))
+(assert_exception (invoke "rethrow-nested" (i32.const 1)))
+(assert_return (invoke "rethrow-nested" (i32.const 2)) (i32.const 23))
+
+(assert_return (invoke "rethrow-recatch" (i32.const 0)) (i32.const 23))
+(assert_return (invoke "rethrow-recatch" (i32.const 1)) (i32.const 42))
+
+(assert_exception (invoke "rethrow-stack-polymorphism"))
+
+(assert_invalid (module (func (rethrow 0))) "invalid rethrow label")
+(assert_invalid (module (func (block (rethrow 0)))) "invalid rethrow label")
+(assert_invalid (module (func
+                           try
+			     rethrow 0
+			   delegate 0))
+                "invalid rethrow label")

tests/local/legacy-exceptions/rethrow.wast

@@ -0,0 +1,56 @@
+;; Test throw instruction.
+
+(module
+  (tag $e0)
+  (tag $e-i32 (param i32))
+  (tag $e-f32 (param f32))
+  (tag $e-i64 (param i64))
+  (tag $e-f64 (param f64))
+  (tag $e-i32-i32 (param i32 i32))
+
+  (func $throw-if (export "throw-if") (param i32) (result i32)
+    (local.get 0)
+    (i32.const 0) (if (i32.ne) (then (throw $e0)))
+    (i32.const 0)
+  )
+
+  (func (export "throw-param-f32") (param f32) (local.get 0) (throw $e-f32))
+
+  (func (export "throw-param-i64") (param i64) (local.get 0) (throw $e-i64))
+
+  (func (export "throw-param-f64") (param f64) (local.get 0) (throw $e-f64))
+
+  (func $throw-1-2 (i32.const 1) (i32.const 2) (throw $e-i32-i32))
+  (func (export "test-throw-1-2")
+    try
+      call $throw-1-2
+    catch $e-i32-i32
+      i32.const 2
+      i32.ne
+      if
+        unreachable
+      end
+      i32.const 1
+      i32.ne
+      if
+        unreachable
+      end
+    end
+  )
+)
+
+(assert_return (invoke "throw-if" (i32.const 0)) (i32.const 0))
+(assert_exception (invoke "throw-if" (i32.const 10)))
+(assert_exception (invoke "throw-if" (i32.const -1)))
+
+(assert_exception (invoke "throw-param-f32" (f32.const 5.0)))
+(assert_exception (invoke "throw-param-i64" (i64.const 5)))
+(assert_exception (invoke "throw-param-f64" (f64.const 5.0)))
+
+(assert_return (invoke "test-throw-1-2"))
+
+(assert_invalid (module (func (throw 0))) "unknown tag 0")
+(assert_invalid (module (tag (param i32)) (func (throw 0)))
+                "type mismatch: instruction requires [i32] but stack has []")
+(assert_invalid (module (tag (param i32)) (func (i64.const 5) (throw 0)))
+                "type mismatch: instruction requires [i32] but stack has [i64]")