jscript: Use bytecode for '>>>' expression implementation.

dlls/jscript/compile.c

@@ -693,6 +693,8 @@ static HRESULT compile_expression_noret(compiler_ctx_t *ctx, expression_t *expr,
         return compile_increment_expression(ctx, (unary_expression_t*)expr, OP_preinc, 1);
     case EXPR_RSHIFT:
         return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift);
+    case EXPR_RRSHIFT:
+        return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift2);
     case EXPR_SUB:
         return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_sub);
     case EXPR_THIS:

dlls/jscript/engine.c

@@ -3160,13 +3160,20 @@ static HRESULT rshift2_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jse
 }
 
 /* ECMA-262 3rd Edition    11.7.3 */
-HRESULT right2_shift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
+static HRESULT interp_rshift2(exec_ctx_t *ctx)
 {
-    binary_expression_t *expr = (binary_expression_t*)_expr;
+    DWORD r, l;
+    HRESULT hres;
 
-    TRACE("\n");
+    hres = stack_pop_uint(ctx, &r);
+    if(FAILED(hres))
+        return hres;
 
-    return binary_expr_eval(ctx, expr, rshift2_eval, ei, ret);
+    hres = stack_pop_uint(ctx, &l);
+    if(FAILED(hres))
+        return hres;
+
+    return stack_push_int(ctx, l >> (r&0x1f));
 }
 
 /* ECMA-262 3rd Edition    11.13.1 */

dlls/jscript/engine.h

@@ -83,6 +83,7 @@ typedef struct _func_stack {
     X(preinc,     1, ARG_INT,    0)        \
     X(regexp,     1, ARG_STR,    ARG_INT)  \
     X(rshift,     1, 0,0)                  \
+    X(rshift2,    1, 0,0)                  \
     X(str,        1, ARG_STR,    0)        \
     X(this,       1, 0,0)                  \
     X(throw,      0, ARG_UINT,   0)        \
@@ -567,7 +568,6 @@ HRESULT instanceof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*
 HRESULT delete_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 HRESULT typeof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 HRESULT left_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
-HRESULT right2_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 HRESULT assign_lshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 HRESULT assign_rrshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
 

dlls/jscript/parser.y

@@ -1338,7 +1338,7 @@ static const expression_eval_t expression_eval_table[] = {
    compiled_expression_eval,
    left_shift_expression_eval,
    compiled_expression_eval,
-   right2_shift_expression_eval,
+   compiled_expression_eval,
    compiled_expression_eval,
    assign_lshift_expression_eval,
    compiled_expression_eval,