diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/expr.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -690,17 +690,20 @@ convert_modes (machine_mode mode, machine_mode oldmode, rtx x, int unsignedp) && SUBREG_CHECK_PROMOTED_SIGN (x, unsignedp)) { scalar_int_mode int_orig_mode; + scalar_int_mode int_inner_mode; machine_mode orig_mode = GET_MODE (x); x = gen_lowpart (int_mode, SUBREG_REG (x)); /* Preserve SUBREG_PROMOTED_VAR_P if the new mode is wider than the original mode, but narrower than the inner mode. */ if (GET_CODE (x) == SUBREG - && GET_MODE_PRECISION (subreg_promoted_mode (x)) - > GET_MODE_PRECISION (int_mode) && is_a <scalar_int_mode> (orig_mode, &int_orig_mode) && GET_MODE_PRECISION (int_mode) - > GET_MODE_PRECISION (int_orig_mode)) + > GET_MODE_PRECISION (int_orig_mode) + && is_a <scalar_int_mode> (GET_MODE (SUBREG_REG (x)), + &int_inner_mode) + && GET_MODE_PRECISION (int_inner_mode) + > GET_MODE_PRECISION (int_mode)) { SUBREG_PROMOTED_VAR_P (x) = 1; SUBREG_PROMOTED_SET (x, unsignedp); |