From 50093a330f9e4d1b816f77c4ff8bb0dcfea96549 Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Fri, 1 May 2015 13:19:34 +0000 Subject: [PATCH] [AArch64] Make aarch64_min_divisions_for_recip_mul configurable On behalf of Wilco Dijkstra 2015-05-01 Wilco Dijkstra * gcc/config/aarch64/aarch64-protos.h (tune_params): Add min_div_recip_mul_sf and min_div_recip_mul_df fields. * gcc/config/aarch64/aarch64.c (aarch64_min_divisions_for_recip_mul): Return value depending on target. (generic_tunings): Initialize new target settings. (cortexa53_tunings): Likewise. (cortexa57_tunings): Likewise. (thunderx_tunings): Likewise. (xgene1_tunings): Likewise. From-SVN: r222679 --- gcc/ChangeLog | 12 ++++++++++++ gcc/config/aarch64/aarch64-protos.h | 2 ++ gcc/config/aarch64/aarch64.c | 26 +++++++++++++++++++------- 3 files changed, 33 insertions(+), 7 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9869d0a2e7f..223eb8b821e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,15 @@ +2015-05-01 Wilco Dijkstra + + * gcc/config/aarch64/aarch64-protos.h (tune_params): + Add min_div_recip_mul_sf and min_div_recip_mul_df fields. + * gcc/config/aarch64/aarch64.c (aarch64_min_divisions_for_recip_mul): + Return value depending on target. + (generic_tunings): Initialize new target settings. + (cortexa53_tunings): Likewise. + (cortexa57_tunings): Likewise. + (thunderx_tunings): Likewise. + (xgene1_tunings): Likewise. + 2015-05-01 Wilco Dijkstra * gcc/config/arm/aarch-cost-tables.h (cortexa53_extra_costs): diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h index 8676c5c9c85..08ce5f1eb16 100644 --- a/gcc/config/aarch64/aarch64-protos.h +++ b/gcc/config/aarch64/aarch64-protos.h @@ -177,6 +177,8 @@ struct tune_params const int int_reassoc_width; const int fp_reassoc_width; const int vec_reassoc_width; + const int min_div_recip_mul_sf; + const int min_div_recip_mul_df; }; HOST_WIDE_INT aarch64_initial_elimination_offset (unsigned, unsigned); diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 94bdac7140d..374b0a951cf 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -354,7 +354,9 @@ static const struct tune_params generic_tunings = 4, /* loop_align. */ 2, /* int_reassoc_width. */ 4, /* fp_reassoc_width. */ - 1 /* vec_reassoc_width. */ + 1, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2 /* min_div_recip_mul_df. */ }; static const struct tune_params cortexa53_tunings = @@ -372,7 +374,9 @@ static const struct tune_params cortexa53_tunings = 4, /* loop_align. */ 2, /* int_reassoc_width. */ 4, /* fp_reassoc_width. */ - 1 /* vec_reassoc_width. */ + 1, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2 /* min_div_recip_mul_df. */ }; static const struct tune_params cortexa57_tunings = @@ -390,7 +394,9 @@ static const struct tune_params cortexa57_tunings = 4, /* loop_align. */ 2, /* int_reassoc_width. */ 4, /* fp_reassoc_width. */ - 1 /* vec_reassoc_width. */ + 1, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2 /* min_div_recip_mul_df. */ }; static const struct tune_params thunderx_tunings = @@ -407,7 +413,9 @@ static const struct tune_params thunderx_tunings = 8, /* loop_align. */ 2, /* int_reassoc_width. */ 4, /* fp_reassoc_width. */ - 1 /* vec_reassoc_width. */ + 1, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2 /* min_div_recip_mul_df. */ }; static const struct tune_params xgene1_tunings = @@ -424,7 +432,9 @@ static const struct tune_params xgene1_tunings = 16, /* loop_align. */ 2, /* int_reassoc_width. */ 4, /* fp_reassoc_width. */ - 1 /* vec_reassoc_width. */ + 1, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2 /* min_div_recip_mul_df. */ }; /* A processor implementing AArch64. */ @@ -513,9 +523,11 @@ static const char * const aarch64_condition_codes[] = }; static unsigned int -aarch64_min_divisions_for_recip_mul (enum machine_mode mode ATTRIBUTE_UNUSED) +aarch64_min_divisions_for_recip_mul (enum machine_mode mode) { - return 2; + if (GET_MODE_UNIT_SIZE (mode) == 4) + return aarch64_tune_params->min_div_recip_mul_sf; + return aarch64_tune_params->min_div_recip_mul_df; } static int -- 2.30.2