diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/rtlanal.c | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f5ab2f3..95e3dc5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2016-11-15 Richard Sandiford <richard.sandiford@arm.com> + Alan Hayward <alan.hayward@arm.com> + David Sherwood <david.sherwood@arm.com> + + * rtlanal.c (num_sign_bit_copies1): Calculate bitwidth after + handling VOIDmode. + 2016-11-15 Matthias Klose <doko@ubuntu.com> * doc/install.texi: Remove references to gcj/libjava. diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 4617e8e..e08f2be 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4795,7 +4795,6 @@ num_sign_bit_copies1 (const_rtx x, machine_mode mode, const_rtx known_x, unsigned int known_ret) { enum rtx_code code = GET_CODE (x); - unsigned int bitwidth = GET_MODE_PRECISION (mode); machine_mode inner_mode; int num0, num1, result; unsigned HOST_WIDE_INT nonzero; @@ -4811,7 +4810,8 @@ num_sign_bit_copies1 (const_rtx x, machine_mode mode, const_rtx known_x, || VECTOR_MODE_P (GET_MODE (x)) || VECTOR_MODE_P (mode)) return 1; - /* For a smaller object, just ignore the high bits. */ + /* For a smaller mode, just ignore the high bits. */ + unsigned int bitwidth = GET_MODE_PRECISION (mode); if (bitwidth < GET_MODE_PRECISION (GET_MODE (x))) { num0 = cached_num_sign_bit_copies (x, GET_MODE (x), |