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| author | Thomas Preud'homme <thomas.preudhomme@arm.com> | 2015-04-28 08:10:44 +0000 |
|---|---|---|
| committer | Thomas Preud'homme <thopre01@gcc.gnu.org> | 2015-04-28 08:10:44 +0000 |
| commit | fde9b31b61aa281b502e4f49200e3090aa8a4dd1 (patch) | |
| tree | feebbec54d03722d68e3d93fcfbe99957828583a /gcc/config.gcc | |
| parent | 0060d7d71ec248c1aadc82783d1a3ef29b30b6ba (diff) | |
| download | gcc-fde9b31b61aa281b502e4f49200e3090aa8a4dd1.zip gcc-fde9b31b61aa281b502e4f49200e3090aa8a4dd1.tar.gz gcc-fde9b31b61aa281b502e4f49200e3090aa8a4dd1.tar.bz2 | |
re PR target/63503 ([AArch64] A57 executes fused multiply-add poorly in some situations)
2015-04-28 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR target/63503
* config.gcc: Add cortex-a57-fma-steering.o to extra_objs for
aarch64-*-*.
* config/aarch64/t-aarch64: Add a rule for cortex-a57-fma-steering.o.
* config/aarch64/aarch64.h (AARCH64_FL_USE_FMA_STEERING_PASS): Define.
(AARCH64_TUNE_FMA_STEERING): Likewise.
* config/aarch64/aarch64-cores.def: Set
AARCH64_FL_USE_FMA_STEERING_PASS for cores with dynamic steering of
FMUL/FMADD instructions.
* config/aarch64/aarch64.c (aarch64_register_fma_steering): Declare.
(aarch64_override_options): Include cortex-a57-fma-steering.h. Call
aarch64_register_fma_steering () if AARCH64_TUNE_FMA_STEERING is true.
* config/aarch64/cortex-a57-fma-steering.h: New file.
* config/aarch64/cortex-a57-fma-steering.c: Likewise.
From-SVN: r222512
Diffstat (limited to 'gcc/config.gcc')
| -rw-r--r-- | gcc/config.gcc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config.gcc b/gcc/config.gcc index 5c48cd0..f21421b 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -302,7 +302,7 @@ m32c*-*-*) aarch64*-*-*) cpu_type=aarch64 extra_headers="arm_neon.h arm_acle.h" - extra_objs="aarch64-builtins.o aarch-common.o" + extra_objs="aarch64-builtins.o aarch-common.o cortex-a57-fma-steering.o" target_gtfiles="\$(srcdir)/config/aarch64/aarch64-builtins.c" target_has_targetm_common=yes ;; |