Hi,
this patch makes branch_cost to be stable over optimize_size and optimize
to allow inlining. This is safe because BRANCH_COST macro will use constant of
2 for all branches optimized for size.
Bootstrapped/regtested x86_64-linux, comitted.
PR lto/45375
* i386.c (ix86_option_override_internal): Use ix86_tune_cost
to set branch cost.
Index: config/i386/i386.c
===================================================================
--- config/i386/i386.c (revision 219876)
+++ config/i386/i386.c (working copy)
@@ -3919,7 +3919,7 @@ ix86_option_override_internal (bool main
/* Provide default for -mbranch-cost= value. */
if (!opts_set->x_ix86_branch_cost)
- opts->x_ix86_branch_cost = ix86_cost->branch_cost;
+ opts->x_ix86_branch_cost = ix86_tune_cost->branch_cost;
if (TARGET_64BIT_P (opts->x_ix86_isa_flags))
{
