diff options
Diffstat (limited to 'gcc/expr.cc')
| -rw-r--r-- | gcc/expr.cc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/expr.cc b/gcc/expr.cc index 4c892d6..efe387e 100644 --- a/gcc/expr.cc +++ b/gcc/expr.cc @@ -416,8 +416,15 @@ convert_mode_scalar (rtx to, rtx from, int unsignedp) rtx tof = NULL_RTX; if (fromi) { - rtx toi = gen_reg_rtx (toi_mode); - convert_mode_scalar (toi, fromi, 1); + rtx toi; + if (GET_MODE (fromi) == VOIDmode) + toi = simplify_unary_operation (ZERO_EXTEND, toi_mode, + fromi, fromi_mode); + else + { + toi = gen_reg_rtx (toi_mode); + convert_mode_scalar (toi, fromi, 1); + } toi = maybe_expand_shift (LSHIFT_EXPR, toi_mode, toi, GET_MODE_PRECISION (to_mode) |