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author | Oleg Endo <olegendo@gcc.gnu.org> | 2012-08-22 22:52:17 +0000 |
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committer | Oleg Endo <olegendo@gcc.gnu.org> | 2012-08-22 22:52:17 +0000 |
commit | 6e01d5265181a73cb7b8f678ea5d1baff1f91bdc (patch) | |
tree | 036a6368ca64516b6be1aed09908a8c533e43618 /libgo | |
parent | 131db6b8b25c6cb2349045f8c8196be6e376f454 (diff) | |
download | gcc-6e01d5265181a73cb7b8f678ea5d1baff1f91bdc.zip gcc-6e01d5265181a73cb7b8f678ea5d1baff1f91bdc.tar.gz gcc-6e01d5265181a73cb7b8f678ea5d1baff1f91bdc.tar.bz2 |
re PR target/54089 ([SH] Refactor shift patterns)
PR target/54089
* config/sh/predicates (p27_rshift_count_operand,
not_p27_rshift_count_operand): New predicates.
* config/sh/sh.c (sh_ashlsi_clobbers_t_reg_p,
sh_lshrsi_clobbers_t_reg_p, sh_dynamicalize_shift_p): Handle special
case when shift amount is 31.
(gen_ashift): Emit gen_shlr instead of gen_lshrsi3_m.
* config/sh/sh.md (ashlsi3_d): Set type to 'dyn_shift' instead
of 'arith'.
(ashlsi_c): Rename to shll. Adapt calls to gen_ashlsi_c throughout
the file.
(lshrsi3): Remove clobber from expander. Use shift_count_operand
instead of nonmemory_operand predicate for second operand. Add
handling of case lshrsi3_n_clobbers_t.
(lshrsi3_k): Use p27_rshift_count_operand for second operand.
(lshrsi3_d): Make insn_and_split. Split dynamic shift to constant
shift sequences if beneficial.
(lshrsi3_n): Make insn_and_split. Split constant shift sequence to
dynamic shift if beneficial.
(lshrsi3_n_clobbers_t): New insn_and_split.
(lshrsi3_m): Delete.
PR target/54089
* gcc.target/sh/pr54089-2.c: New.
From-SVN: r190603
Diffstat (limited to 'libgo')
0 files changed, 0 insertions, 0 deletions