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2008-01-08 Jan Sjodin <jan.sjodin@amd.com> 

* config/i386/i386.c:
        (k8_cost, amdfam10_cost): Branch costs for vectorization tuned.

From-SVN: r131401
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Jan Sjodin 2008-01-08 16:35:44 +00:00 committed by Jan Sjodin
parent a9990582a8
commit cedbd7647a
2 changed files with 10 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2008-01-08 Jan Sjodin <jan.sjodin@amd.com>
* config/i386/i386.c:
(k8_cost, amdfam10_cost): Branch costs for vectorization tuned.
2008-01-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34683

10
gcc/config/i386/i386.c
View File

@ -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. */
};