diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/expr.c | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 4 |
3 files changed, 13 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e65ab7b..e2f6e9c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-04-25 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/85414 + * simplify-rtx.c (simplify_unary_operation_1) <case SIGN_EXTEND, + case ZERO_EXTEND>: Pass SUBREG_REG (op) rather than op to + gen_lowpart_no_emit. + 2018-04-25 Sebastian Peryt <sebastian.peryt@intel.com> PR target/85473 @@ -233,7 +233,10 @@ convert_move (rtx to, rtx from, int unsignedp) && (GET_MODE_PRECISION (subreg_promoted_mode (from)) >= GET_MODE_PRECISION (to_int_mode)) && SUBREG_CHECK_PROMOTED_SIGN (from, unsignedp)) - from = gen_lowpart (to_int_mode, from), from_mode = to_int_mode; + { + from = gen_lowpart (to_int_mode, SUBREG_REG (from)); + from_mode = to_int_mode; + } gcc_assert (GET_CODE (to) != SUBREG || !SUBREG_PROMOTED_VAR_P (to)); diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 9ce180d..e96c9d1 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1484,7 +1484,7 @@ simplify_unary_operation_1 (enum rtx_code code, machine_mode mode, rtx op) && SUBREG_PROMOTED_SIGNED_P (op) && !paradoxical_subreg_p (mode, GET_MODE (SUBREG_REG (op)))) { - temp = rtl_hooks.gen_lowpart_no_emit (mode, op); + temp = rtl_hooks.gen_lowpart_no_emit (mode, SUBREG_REG (op)); if (temp) return temp; } @@ -1567,7 +1567,7 @@ simplify_unary_operation_1 (enum rtx_code code, machine_mode mode, rtx op) && SUBREG_PROMOTED_UNSIGNED_P (op) && !paradoxical_subreg_p (mode, GET_MODE (SUBREG_REG (op)))) { - temp = rtl_hooks.gen_lowpart_no_emit (mode, op); + temp = rtl_hooks.gen_lowpart_no_emit (mode, SUBREG_REG (op)); if (temp) return temp; } |