diff options
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index c582f3a..f1975fe 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2046,7 +2046,10 @@ extract_integral_bit_field (rtx op0, opt_scalar_int_mode op0_mode, If a TARGET is specified and we can store in it at no extra cost, we do so, and return TARGET. Otherwise, we return a REG of mode TMODE or MODE, with TMODE preferred - if they are equally easy. */ + if they are equally easy. + + If the result can be stored at TARGET, and ALT_RTL is non-NULL, + then *ALT_RTL is set to TARGET (before legitimziation). */ rtx extract_bit_field (rtx str_rtx, poly_uint64 bitsize, poly_uint64 bitnum, |