From: Philipp Tomsich Date: Mon, 17 Apr 2023 23:26:32 +0000 (+0200) Subject: aarch64: update ampere1 vectorization cost X-Git-Tag: releases/gcc-10.5.0~195 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9414c71c1e01664d2dfacb997c863d278298d565;p=thirdparty%2Fgcc.git aarch64: update ampere1 vectorization cost The original submission of AmpereOne (-mcpu=ampere1) costs occurred prior to exhaustive testing of vectorizable workloads against hardware. Adjust the vector costs to achieve the best results and more closely match the underlying hardware. gcc/ChangeLog: * config/aarch64/aarch64.c: Update vector costs for ampere1. Co-Authored-By: Jiangning Liu Co-Authored-By: Manolis Tsamis (cherry picked from commit ff1f2f2412bda118f7ddc10e69bd4284d9b24b9e) --- diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index e491b9d0d38f..9aebbbd49100 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -785,18 +785,18 @@ static const struct cpu_vector_cost a64fx_vector_cost = static const struct cpu_vector_cost ampere1_vector_cost = { 1, /* scalar_int_stmt_cost */ - 1, /* scalar_fp_stmt_cost */ + 3, /* scalar_fp_stmt_cost */ 4, /* scalar_load_cost */ 1, /* scalar_store_cost */ - 3, /* int_stmt_cost */ + 1, /* int_stmt_cost */ 3, /* fp_stmt_cost */ 2, /* permute_cost */ 6, /* vec_to_scalar_cost */ 7, /* scalar_to_vec_cost */ - 5, /* align_load_cost */ - 5, /* unalign_load_cost */ - 2, /* unalign_store_cost */ - 2, /* store_cost */ + 4, /* align_load_cost */ + 4, /* unalign_load_cost */ + 1, /* unalign_store_cost */ + 1, /* store_cost */ 1, /* cond_taken_branch_cost */ 1 /* cond_not_taken_branch_cost */ };