diff options
Diffstat (limited to 'gcc/emit-rtl.cc')
| -rw-r--r-- | gcc/emit-rtl.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/emit-rtl.cc b/gcc/emit-rtl.cc index 1e02ae2..3929ee0 100644 --- a/gcc/emit-rtl.cc +++ b/gcc/emit-rtl.cc @@ -947,9 +947,11 @@ validate_subreg (machine_mode omode, machine_mode imode, && GET_MODE_INNER (omode) == GET_MODE_INNER (imode)) ; /* Subregs involving floating point modes are not allowed to - change size. Therefore (subreg:DI (reg:DF) 0) is fine, but + change size unless it's an insert into a complex mode. + Therefore (subreg:DI (reg:DF) 0) and (subreg:CS (reg:SF) 0) are fine, but (subreg:SI (reg:DF) 0) isn't. */ - else if (FLOAT_MODE_P (imode) || FLOAT_MODE_P (omode)) + else if ((FLOAT_MODE_P (imode) || FLOAT_MODE_P (omode)) + && !COMPLEX_MODE_P (omode)) { if (! (known_eq (isize, osize) /* LRA can use subreg to store a floating point value in |