From cedbd7647a1c6813b7da9833f14cb9671063cb72 Mon Sep 17 00:00:00 2001 From: Jan Sjodin Date: Tue, 8 Jan 2008 16:35:44 +0000 Subject: [PATCH] 2008-01-08 Jan Sjodin * config/i386/i386.c: (k8_cost, amdfam10_cost): Branch costs for vectorization tuned. From-SVN: r131401 --- gcc/ChangeLog | 5 +++++ gcc/config/i386/i386.c | 10 +++++----- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3bf8fb163375..d163f6ac4047 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2008-01-08 Jan Sjodin + + * config/i386/i386.c: + (k8_cost, amdfam10_cost): Branch costs for vectorization tuned. + 2008-01-08 Richard Guenther PR tree-optimization/34683 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 0f827a6de9b2..599f8646e1bc 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -701,7 +701,7 @@ struct processor_costs k8_cost = { to limit number of prefetches at all, as their execution also takes some time). */ 100, /* number of parallel prefetches */ - 5, /* Branch cost */ + 3, /* Branch cost */ COSTS_N_INSNS (4), /* cost of FADD and FSUB insns. */ COSTS_N_INSNS (4), /* cost of FMUL instruction. */ COSTS_N_INSNS (19), /* cost of FDIV instruction. */ @@ -725,8 +725,8 @@ struct processor_costs k8_cost = { 2, /* vec_align_load_cost. */ 3, /* vec_unalign_load_cost. */ 3, /* vec_store_cost. */ - 6, /* cond_taken_branch_cost. */ - 1, /* cond_not_taken_branch_cost. */ + 3, /* cond_taken_branch_cost. */ + 2, /* cond_not_taken_branch_cost. */ }; struct processor_costs amdfam10_cost = { @@ -787,7 +787,7 @@ struct processor_costs amdfam10_cost = { to limit number of prefetches at all, as their execution also takes some time). */ 100, /* number of parallel prefetches */ - 5, /* Branch cost */ + 2, /* Branch cost */ COSTS_N_INSNS (4), /* cost of FADD and FSUB insns. */ COSTS_N_INSNS (4), /* cost of FMUL instruction. */ COSTS_N_INSNS (19), /* cost of FDIV instruction. */ @@ -812,7 +812,7 @@ struct processor_costs amdfam10_cost = { 2, /* vec_align_load_cost. */ 2, /* vec_unalign_load_cost. */ 2, /* vec_store_cost. */ - 6, /* cond_taken_branch_cost. */ + 2, /* cond_taken_branch_cost. */ 1, /* cond_not_taken_branch_cost. */ }; -- 2.47.2