diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/fold-const.c | 5 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c6b21eb..3f81da5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2007-01-04 Roger Sayle <roger@eyesopen.com> + + * 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 <joseph@codesourcery.com> * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 8826908..559acf0 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 (); |