diff options
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 12 |
2 files changed, 11 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bec7124..1587a51 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2018-10-31 Richard Henderson <richard.henderson@linaro.org> + * config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Force + 16-byte modes held in GP registers to use an even regno. + * config/aarch64/aarch64.c (aarch64_emit_bic): Remove. (aarch64_atomic_ldop_supported_p): Remove. (aarch64_gen_atomic_ldop): Remove. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index e646cce..9813a9d 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -1452,10 +1452,14 @@ aarch64_hard_regno_mode_ok (unsigned regno, machine_mode mode) if (regno == FRAME_POINTER_REGNUM || regno == ARG_POINTER_REGNUM) return mode == Pmode; - if (GP_REGNUM_P (regno) && known_le (GET_MODE_SIZE (mode), 16)) - return true; - - if (FP_REGNUM_P (regno)) + if (GP_REGNUM_P (regno)) + { + if (known_le (GET_MODE_SIZE (mode), 8)) + return true; + else if (known_le (GET_MODE_SIZE (mode), 16)) + return (regno & 1) == 0; + } + else if (FP_REGNUM_P (regno)) { if (vec_flags & VEC_STRUCT) return end_hard_regno (mode, regno) - 1 <= V31_REGNUM; |