Add support for builtin astype:
__builtin_astype(): Used to reinterpreted as another data type of the same size using for both scalar and vector data types.
Added test case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseExpr.cpp b/lib/Parse/ParseExpr.cpp
index 25d505c..89422b9 100644
--- a/lib/Parse/ParseExpr.cpp
+++ b/lib/Parse/ParseExpr.cpp
@@ -785,6 +785,7 @@
case tok::kw___builtin_va_arg:
case tok::kw___builtin_offsetof:
case tok::kw___builtin_choose_expr:
+ case tok::kw___builtin_astype: // primary-expression: [OCL] as_type()
return ParseBuiltinPrimaryExpression();
case tok::kw___null:
return Actions.ActOnGNUNullExpr(ConsumeToken());
@@ -1533,6 +1534,7 @@
/// [GNU] '__builtin_choose_expr' '(' assign-expr ',' assign-expr ','
/// assign-expr ')'
/// [GNU] '__builtin_types_compatible_p' '(' type-name ',' type-name ')'
+/// [OCL] '__builtin_astype' '(' type-name expr ')'
///
/// [GNU] offsetof-member-designator:
/// [GNU] identifier
@@ -1677,7 +1679,35 @@
Expr2.take(), ConsumeParen());
break;
}
+ case tok::kw___builtin_astype: {
+ // The first argument is an expression to be converted, followed by a comma.
+ ExprResult Expr(ParseAssignmentExpression());
+ if (Expr.isInvalid()) {
+ SkipUntil(tok::r_paren);
+ return ExprError();
+ }
+
+ if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "",
+ tok::r_paren))
+ return ExprError();
+
+ // Second argument is the type to bitcast to.
+ TypeResult DestTy = ParseTypeName();
+ if (DestTy.isInvalid())
+ return ExprError();
+
+ // Attempt to consume the r-paren.
+ if (Tok.isNot(tok::r_paren)) {
+ Diag(Tok, diag::err_expected_rparen);
+ SkipUntil(tok::r_paren);
+ return ExprError();
+ }
+
+ Res = Actions.ActOnAsTypeExpr(Expr.take(), DestTy.get(), StartLoc,
+ ConsumeParen());
+ break;
}
+}
if (Res.isInvalid())
return ExprError();