diff options
Diffstat (limited to 'gcc/rtlhooks.c')
| -rw-r--r-- | gcc/rtlhooks.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/rtlhooks.c b/gcc/rtlhooks.c index 49d4cfe..5303af5 100644 --- a/gcc/rtlhooks.c +++ b/gcc/rtlhooks.c @@ -79,6 +79,19 @@ gen_lowpart_general (enum machine_mode mode, rtx x) } } +/* Similar to gen_lowpart, but cannot emit any instruction via + copy_to_reg or force_reg. Mainly used in simplify-rtx.c. */ +rtx +gen_lowpart_no_emit_general (enum machine_mode mode, rtx x) +{ + rtx result = gen_lowpart_common (mode, x); + if (result) + return result; + if (mode != GET_MODE (x) && GET_MODE (x) != VOIDmode) + return gen_lowpart_SUBREG (mode, x); + return x; +} + rtx reg_num_sign_bit_copies_general (rtx x ATTRIBUTE_UNUSED, enum machine_mode mode ATTRIBUTE_UNUSED, |