From: sayle Date: Thu, 4 Jan 2007 23:00:00 +0000 (+0000) Subject: * fold-const.c (fold_convert): When casting an expression to void, X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=df0137b92d4859863101d5f72d535945dbe7201c;p=thirdparty%2Fgcc.git * fold-const.c (fold_convert): When casting an expression to void, fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't have a type. Instead of attempting to build a NOP_EXPR, return these "special" trees directly. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120451 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c6b21eb1b69f..3f81da506274 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2007-01-04 Roger Sayle + + * fold-const.c (fold_convert): When casting an expression to void, + fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't + have a type. Instead of attempting to build a NOP_EXPR, return + these "special" trees directly. + 2007-01-04 Joseph Myers * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 8826908054d4..559acf018adf 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2144,7 +2144,10 @@ fold_convert (tree type, tree arg) return fold_build1 (VIEW_CONVERT_EXPR, type, arg); case VOID_TYPE: - return fold_build1 (NOP_EXPR, type, fold_ignored_result (arg)); + tem = fold_ignored_result (arg); + if (TREE_CODE (tem) == GIMPLE_MODIFY_STMT) + return tem; + return fold_build1 (NOP_EXPR, type, tem); default: gcc_unreachable ();