7328faf89e
When SVE is enabled, we try vectorising with multiple different SVE and Advanced SIMD approaches and use the cost model to pick the best one. Until now, we've not done that for Advanced SIMD, since "the first mode that works should always be the best". The testcase is a counterexample. Each iteration of the scalar loop vectorises naturally with 64-bit input vectors and 128-bit output vectors. We do try that for SVE, and choose it as the best approach. But the first approach we try is instead to use: - a vectorisation factor of 2 - 1 128-bit vector for the inputs - 2 128-bit vectors for the outputs But since the stride is variable, the cost of marshalling the input vector from two iterations outweighs the benefit of doing two iterations at once. This patch therefore generalises aarch64-sve-compare-costs to aarch64-vect-compare-costs and applies it to non-SVE compilations. gcc/ PR target/113104 * doc/invoke.texi (aarch64-sve-compare-costs): Replace with... (aarch64-vect-compare-costs): ...this. * config/aarch64/aarch64.opt (-param=aarch64-sve-compare-costs=): Replace with... (-param=aarch64-vect-compare-costs=): ...this new param. * config/aarch64/aarch64.cc (aarch64_override_options_internal): Don't disable it when vectorizing for Advanced SIMD only. (aarch64_autovectorize_vector_modes): Apply VECT_COMPARE_COSTS whenever aarch64_vect_compare_costs is true. gcc/testsuite/ PR target/113104 * gcc.target/aarch64/pr113104.c: New test. * gcc.target/aarch64/sve/cond_arith_1.c: Update for new parameter names. * gcc.target/aarch64/sve/cond_arith_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_arith_3.c: Likewise. * gcc.target/aarch64/sve/cond_arith_3_run.c: Likewise. * gcc.target/aarch64/sve/gather_load_6.c: Likewise. * gcc.target/aarch64/sve/gather_load_7.c: Likewise. * gcc.target/aarch64/sve/load_const_offset_2.c: Likewise. * gcc.target/aarch64/sve/load_const_offset_3.c: Likewise. * gcc.target/aarch64/sve/mask_gather_load_6.c: Likewise. * gcc.target/aarch64/sve/mask_gather_load_7.c: Likewise. * gcc.target/aarch64/sve/mask_load_slp_1.c: Likewise. * gcc.target/aarch64/sve/mask_struct_load_1.c: Likewise. * gcc.target/aarch64/sve/mask_struct_load_2.c: Likewise. * gcc.target/aarch64/sve/mask_struct_load_3.c: Likewise. * gcc.target/aarch64/sve/mask_struct_load_4.c: Likewise. * gcc.target/aarch64/sve/mask_struct_store_1.c: Likewise. * gcc.target/aarch64/sve/mask_struct_store_1_run.c: Likewise. * gcc.target/aarch64/sve/mask_struct_store_2.c: Likewise. * gcc.target/aarch64/sve/mask_struct_store_2_run.c: Likewise. * gcc.target/aarch64/sve/pack_1.c: Likewise. * gcc.target/aarch64/sve/reduc_4.c: Likewise. * gcc.target/aarch64/sve/scatter_store_6.c: Likewise. * gcc.target/aarch64/sve/scatter_store_7.c: Likewise. * gcc.target/aarch64/sve/strided_load_3.c: Likewise. * gcc.target/aarch64/sve/strided_store_3.c: Likewise. * gcc.target/aarch64/sve/unpack_fcvt_signed_1.c: Likewise. * gcc.target/aarch64/sve/unpack_fcvt_unsigned_1.c: Likewise. * gcc.target/aarch64/sve/unpack_signed_1.c: Likewise. * gcc.target/aarch64/sve/unpack_unsigned_1.c: Likewise. * gcc.target/aarch64/sve/unpack_unsigned_1_run.c: Likewise. * gcc.target/aarch64/sve/vcond_11.c: Likewise. * gcc.target/aarch64/sve/vcond_11_run.c: Likewise. |
||
|---|---|---|
| .github | ||
| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgm2 | ||
| libgo | ||
| libgomp | ||
| libgrust | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| SECURITY.txt | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.