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| author | Robin Dapp <rdapp@linux.ibm.com> | 2019-07-08 14:40:48 +0000 |
|---|---|---|
| committer | Robin Dapp <rdapp@gcc.gnu.org> | 2019-07-08 14:40:48 +0000 |
| commit | e2839e47894f0b4917ddbd59013071e98f525336 (patch) | |
| tree | 5f0d0cb4e462dfba33273ddc206a817fadcb9e68 /gcc/tree-pass.h | |
| parent | f069f0f20fb7a8467cb0dd6f01575e9c56aa8bc2 (diff) | |
| download | gcc-e2839e47894f0b4917ddbd59013071e98f525336.zip gcc-e2839e47894f0b4917ddbd59013071e98f525336.tar.gz gcc-e2839e47894f0b4917ddbd59013071e98f525336.tar.bz2 | |
S/390: Rework shift count handling.
Add s390_valid_shift_count to determine the validity of a
shift-count operand. This is used to replace increasingly
complex substitutions that should have allowed address-style
shift-count handling, an and mask as well as no-op subregs
on the operand.
gcc/ChangeLog:
2019-07-08 Robin Dapp <rdapp@linux.ibm.com>
* config/s390/constraints.md: Add new jsc constraint.
* config/s390/predicates.md: New predicates.
* config/s390/s390-protos.h (s390_valid_shift_count): New function.
* config/s390/s390.c (s390_valid_shift_count): New function.
(print_shift_count_operand): Use s390_valid_shift_count.
(print_operand): Likewise.
* config/s390/s390.md: Use new predicate.
* config/s390/subst.md: Remove addr_style_op and masked_op substs.
* config/s390/vector.md: Use new predicate.
2019-07-08 Robin Dapp <rdapp@linux.ibm.com>
* gcc.target/s390/combine-rotate-modulo.c: New test.
* gcc.target/s390/combine-shift-rotate-add-mod.c: New test.
* gcc.target/s390/vector/combine-shift-vec.c: New test.
From-SVN: r273236
Diffstat (limited to 'gcc/tree-pass.h')
0 files changed, 0 insertions, 0 deletions