diff options
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index ec7a062..3b8d88a 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4325,6 +4325,17 @@ simplify_subreg_regno (unsigned int xregno, machine_mode xmode, return (int) yregno; } +/* A wrapper around simplify_subreg_regno that uses subreg_lowpart_offset + (xmode, ymode) as the offset. */ + +int +lowpart_subreg_regno (unsigned int regno, machine_mode xmode, + machine_mode ymode) +{ + poly_uint64 offset = subreg_lowpart_offset (xmode, ymode); + return simplify_subreg_regno (regno, xmode, offset, ymode); +} + /* Return the final regno that a subreg expression refers to. */ unsigned int subreg_regno (const_rtx x) |