diff options
| author | Wilco Dijkstra <wdijkstr@arm.com> | 2016-02-10 12:36:03 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2016-02-10 12:36:03 +0000 |
| commit | 1a65eb20f453885fb37025a3a08c30930a4d8219 (patch) | |
| tree | 74b8569185463e940cd1fc92a94d03971f734c04 | |
| parent | 7a347f6b18eaa398f48836abbfd006c29baf1b6e (diff) | |
Enable instruction fusion of AES instructions on ARM for Cortex-A53 and
Cortex-A57.
gcc/
* config/arm/arm.c (arm_cortex_a53_tune): Enable AES fusion.
(arm_cortex_a57_tune): Likewise.
(aarch_macro_fusion_pair_p): Add support for AES fusion.
* config/arm/arm-protos.h (fuse_ops): Add FUSE_AES_AESMC
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@233266 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/arm/arm-protos.h | 5 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 8 |
3 files changed, 16 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 70290d9aabb..42e89c7dc22 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2016-02-10 Wilco Dijkstra <wdijkstr@arm.com> + + * config/arm/arm.c (arm_cortex_a53_tune): Enable AES fusion. + (arm_cortex_a57_tune): Likewise. + (aarch_macro_fusion_pair_p): Add support for AES fusion. + * config/arm/arm-protos.h (fuse_ops): Add FUSE_AES_AESMC. + 2016-02-10 Eric Botcazou <ebotcazou@adacore.com> * timevar.def (TV_PHASE_DBGINFO): Delete. diff --git a/gcc/config/arm/arm-protos.h b/gcc/config/arm/arm-protos.h index e051d3b03ec..0083673b161 100644 --- a/gcc/config/arm/arm-protos.h +++ b/gcc/config/arm/arm-protos.h @@ -300,8 +300,9 @@ struct tune_params enum fuse_ops { FUSE_NOTHING = 0, - FUSE_MOVW_MOVT = 1 << 0 - } fusible_ops: 1; + FUSE_MOVW_MOVT = 1 << 0, + FUSE_AES_AESMC = 1 << 1 + } fusible_ops: 2; /* Depth of scheduling queue to check for L2 autoprefetcher. */ enum {SCHED_AUTOPREF_OFF, SCHED_AUTOPREF_RANK, SCHED_AUTOPREF_FULL} sched_autopref: 2; diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 27aecf7d1a4..82becef2230 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -1982,7 +1982,7 @@ const struct tune_params arm_cortex_a53_tune = tune_params::DISPARAGE_FLAGS_NEITHER, tune_params::PREF_NEON_64_FALSE, tune_params::PREF_NEON_STRINGOPS_TRUE, - FUSE_OPS (tune_params::FUSE_MOVW_MOVT), + FUSE_OPS (tune_params::FUSE_MOVW_MOVT | tune_params::FUSE_AES_AESMC), tune_params::SCHED_AUTOPREF_OFF }; @@ -2005,7 +2005,7 @@ const struct tune_params arm_cortex_a57_tune = tune_params::DISPARAGE_FLAGS_ALL, tune_params::PREF_NEON_64_FALSE, tune_params::PREF_NEON_STRINGOPS_TRUE, - FUSE_OPS (tune_params::FUSE_MOVW_MOVT), + FUSE_OPS (tune_params::FUSE_MOVW_MOVT | tune_params::FUSE_AES_AESMC), tune_params::SCHED_AUTOPREF_FULL }; @@ -29683,6 +29683,10 @@ aarch_macro_fusion_pair_p (rtx_insn* prev, rtx_insn* curr) if (!arm_macro_fusion_p ()) return false; + if (current_tune->fusible_ops & tune_params::FUSE_AES_AESMC + && aarch_crypto_can_dual_issue (prev, curr)) + return true; + if (current_tune->fusible_ops & tune_params::FUSE_MOVW_MOVT) { /* We are trying to fuse |