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| -rw-r--r-- | gcc/fold-const.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/fold-const.cc b/gcc/fold-const.cc index 00e2af0..d4ee3b3 100644 --- a/gcc/fold-const.cc +++ b/gcc/fold-const.cc @@ -2178,6 +2178,15 @@ fold_convert_const_real_from_real (tree type, const_tree arg1) REAL_VALUE_TYPE value; tree t; + /* If the underlying modes are the same, simply treat it as + copy and rebuild with TREE_REAL_CST information and the + given type. */ + if (TYPE_MODE (type) == TYPE_MODE (TREE_TYPE (arg1))) + { + t = build_real (type, TREE_REAL_CST (arg1)); + return t; + } + /* Don't perform the operation if flag_signaling_nans is on and the operand is a signaling NaN. */ if (HONOR_SNANS (arg1) |