diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/rtlanal.c | 8 |
2 files changed, 6 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 847ba31..ce973cb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2017-05-03 Bin Cheng <bin.cheng@arm.com> + + Revert r247509 + 2017-05-02 Bin Cheng <bin.cheng@arm.com> + * rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes. + 2017-05-03 Richard Sandiford <richard.sandiford@linaro.org> * tree-data-ref.h (SUB_CONFLICTS_IN_A): Wrap SUB argument in brackets. diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index f18245f..321363f 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4164,14 +4164,6 @@ rtx_cost (rtx x, machine_mode mode, enum rtx_code outer_code, return COSTS_N_INSNS (2 + factor); break; - case TRUNCATE: - /* If we can tie these modes, make this cheap. */ - if (MODES_TIEABLE_P (mode, GET_MODE (SUBREG_REG (x)))) - { - total = 0; - break; - } - /* FALLTHRU */ default: if (targetm.rtx_costs (x, mode, outer_code, opno, &total, speed)) return total; |