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| author | Tamar Christina <tamar.christina@arm.com> | 2023-11-21 13:20:39 +0000 |
|---|---|---|
| committer | Tamar Christina <tamar.christina@arm.com> | 2023-11-21 13:25:10 +0000 |
| commit | 33c2b70dbabc02788caabcbc66b7baeafeb95bcf (patch) | |
| tree | e0750c6d8af0977722a8dd2236369d2d8358d31c /gcc/config/aarch64/aarch64.cc | |
| parent | e5678468e550e99944fca6bae364696714ffb445 (diff) | |
| download | gcc-33c2b70dbabc02788caabcbc66b7baeafeb95bcf.zip gcc-33c2b70dbabc02788caabcbc66b7baeafeb95bcf.tar.gz gcc-33c2b70dbabc02788caabcbc66b7baeafeb95bcf.tar.bz2 | |
AArch64: Add new generic-armv8-a CPU and make it the default.
This patch adds a new generic scheduling model "generic-armv8-a" and makes it
the default for all Armv8 architectures.
-mcpu=generic and -mtune=generic is kept around for those that really want the
previous cost model.
This shows on SPECCPU 2017 the following:
generic: SPECINT 1.0% improvement in geomean, SPECFP -0.6%. The SPECFP is due
to fotonik3d_r where we vectorize an FP calculation that only ever
needs one lane of the result. This I believe is a generic costing bug
but at the moment we can't change costs of FP and INT independently.
So will defer updating that cost to stage3 after Richard's other
costing updates land.
generic SVE: SPECINT 1.1% improvement in geomean, SPECFP 0.7% improvement.
gcc/ChangeLog:
PR target/111370
* config/aarch64/aarch64-arches.def (armv8-9, armv8-a, armv8.1-a,
armv8.2-a, armv8.3-a, armv8.4-a, armv8.5-a, armv8.6-a, armv8.7-a,
armv8.8-a): Update to generic_armv8_a.
* config/aarch64/aarch64-cores.def (generic-armv8-a): New.
* config/aarch64/aarch64-tune.md: Regenerate.
* config/aarch64/aarch64.cc: Include generic_armv8_a.h
* config/aarch64/aarch64.h (TARGET_CPU_DEFAULT): Change to
TARGET_CPU_generic_armv8_a.
* config/aarch64/tuning_models/generic_armv8_a.h: New file.
gcc/testsuite/ChangeLog:
PR target/111370
* gcc.target/aarch64/sve/cond_asrd_1.c: Updated.
* gcc.target/aarch64/sve/cond_cnot_4.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_5.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_5.c: Likewise.
* gcc.target/aarch64/target_attr_13.c: Likewise.
* gcc.target/aarch64/target_attr_15.c: Likewise.
Diffstat (limited to 'gcc/config/aarch64/aarch64.cc')
| -rw-r--r-- | gcc/config/aarch64/aarch64.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index d1dd65f..3ae8e6d 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -355,6 +355,7 @@ static const struct aarch64_flag_desc aarch64_tuning_flags[] = /* Tuning parameters. */ #include "tuning_models/generic.h" +#include "tuning_models/generic_armv8_a.h" #include "tuning_models/cortexa35.h" #include "tuning_models/cortexa53.h" #include "tuning_models/cortexa57.h" |