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| author | Lingling Kong <lingling.kong@intel.com> | 2024-06-03 10:38:43 +0800 |
|---|---|---|
| committer | Lingling Kong <lingling.kong@intel.com> | 2024-06-03 14:27:07 +0800 |
| commit | 2fb9363dc3596cd7fda90a8c816d7e27dd9e085b (patch) | |
| tree | b0a95da1604fc13707d4837ab3df1076354fef88 /gcc/tree-vect-loop.cc | |
| parent | bf7745f887c765e06f2e75508f263debb60aeb2e (diff) | |
| download | gcc-2fb9363dc3596cd7fda90a8c816d7e27dd9e085b.zip gcc-2fb9363dc3596cd7fda90a8c816d7e27dd9e085b.tar.gz gcc-2fb9363dc3596cd7fda90a8c816d7e27dd9e085b.tar.bz2 | |
[APX NF] Support APX NF add
APX NF(no flags) feature implements suppresses the update of status flags
for arithmetic operations.
For NF add, it is not clear whether nf add can be faster than lea. If so,
the pattern needs to be adjusted to perfer lea generation.
gcc/ChangeLog:
* config/i386/i386-opts.h (enum apx_features): Add nf
enumeration.
* config/i386/i386.h (TARGET_APX_NF): New.
* config/i386/i386.md (nf_name): New subst_att.
(nf_prefix): Ditto.
(nf_condition): Ditto.
(nf_mem_constraint): Ditto.
(nf_applied): Ditto.
(nf_subst): Add new define_subst.
(*add<mode>_1<nf_name>): New define_insn.
(*addhi_1<nf_name>): Ditto.
(*addqi_1<nf_name>): Diito.
* config/i386/i386.opt: Add apx_nf enumeration.
gcc/testsuite/ChangeLog:
* gcc.target/i386/apx-ndd.c: Fixed test.
Co-authored-by: Hongyu Wong <hongyu.wang@intel.com>
Diffstat (limited to 'gcc/tree-vect-loop.cc')
0 files changed, 0 insertions, 0 deletions