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tree-inline.h (eni_weights): Add field target_builtin_cost to reflect the cost per call to a target specific...

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2007-09-24  Pranav Bhandarkar  <pranav.bhandarkar@celunite.com>
        Ramana Radhakrishnan  <ramana@hercules.pun.celunite.com>

        * tree-inline.h (eni_weights): Add field target_builtin_cost to
        reflect the cost per call to a target specific builtin.
        * tree-inline.c (estimate_num_insns_1): If it is a CALL_EXPR for
        * a
        call to a target specific builtin, then use
target_builtin_call_cost.
        (init_inline_once): Initialize target_builtin_call_cost field.

Co-Authored-By: Ramana Radhakrishnan <ramana@hercules.pun.celunite.com>

From-SVN: r128714
This commit is contained in:
Pranav Bhandarkar 2007-09-24 13:31:25 +00:00 committed by Richard Biener
parent 548183dbd3
commit 625a2efbe7
3 changed files with 20 additions and 1 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2007-09-24 Pranav Bhandarkar <pranav.bhandarkar@celunite.com>
Ramana Radhakrishnan <ramana@hercules.pun.celunite.com>
* tree-inline.h (eni_weights): Add field target_builtin_cost to
reflect the cost per call to a target specific builtin.
* tree-inline.c (estimate_num_insns_1): If it is a CALL_EXPR for a
call to a target specific builtin, then use target_builtin_call_cost.
(init_inline_once): Initialize target_builtin_call_cost field.
2007-09-24 Kai Tietz <kai.tietz@onevision.com>
PR middle-end/33472

9
gcc/tree-inline.c
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@ -2290,7 +2290,11 @@ estimate_num_insns_1 (tree *tp, int *walk_subtrees, void *data)
{
tree decl = get_callee_fndecl (x);
cost = d->weights->call_cost;
if (decl && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_MD)
cost = d->weights->target_builtin_call_cost;
else
cost = d->weights->call_cost;
if (decl && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL)
switch (DECL_FUNCTION_CODE (decl))
{
@ -2391,11 +2395,13 @@ void
init_inline_once (void)
{
eni_inlining_weights.call_cost = PARAM_VALUE (PARAM_INLINE_CALL_COST);
eni_inlining_weights.target_builtin_call_cost = 1;
eni_inlining_weights.div_mod_cost = 10;
eni_inlining_weights.switch_cost = 1;
eni_inlining_weights.omp_cost = 40;
eni_size_weights.call_cost = 1;
eni_size_weights.target_builtin_call_cost = 1;
eni_size_weights.div_mod_cost = 1;
eni_size_weights.switch_cost = 10;
eni_size_weights.omp_cost = 40;
@ -2405,6 +2411,7 @@ init_inline_once (void)
underestimating the cost does less harm than overestimating it, so
we choose a rather small value here. */
eni_time_weights.call_cost = 10;
eni_time_weights.target_builtin_call_cost = 10;
eni_time_weights.div_mod_cost = 10;
eni_time_weights.switch_cost = 4;
eni_time_weights.omp_cost = 40;

3
gcc/tree-inline.h
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@ -103,6 +103,9 @@ typedef struct eni_weights_d
/* Cost per call. */
unsigned call_cost;
/* Cost per call to a target specific builtin */
unsigned target_builtin_call_cost;
/* Cost of "expensive" div and mod operations. */
unsigned div_mod_cost;