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* [gcc/devel/c++-modules] Replace std::vector<> usage in ipa-fnsummary.c with GCC's vec<>.
@ 2020-08-27 18:07 Nathan Sidwell
0 siblings, 0 replies; only message in thread
From: Nathan Sidwell @ 2020-08-27 18:07 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:82c4b78dbef6f03838e3040688c934360a09513f
commit 82c4b78dbef6f03838e3040688c934360a09513f
Author: Aldy Hernandez <aldyh@redhat.com>
Date: Thu Aug 6 15:32:28 2020 +0200
Replace std::vector<> usage in ipa-fnsummary.c with GCC's vec<>.
gcc/ChangeLog:
* ipa-fnsummary.c (evaluate_conditions_for_known_args): Use vec<>
instead of std::vector<>.
(evaluate_properties_for_edge): Same.
(ipa_fn_summary_t::duplicate): Same.
(estimate_ipcp_clone_size_and_time): Same.
* vec.h (<T, A, vl_embed>::embedded_size): Change vec_embedded
type to contain a char[].
Diff:
---
gcc/ipa-fnsummary.c | 17 ++++++++---------
gcc/vec.h | 5 ++++-
2 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/gcc/ipa-fnsummary.c b/gcc/ipa-fnsummary.c
index 59e52927151..2cfab40156e 100644
--- a/gcc/ipa-fnsummary.c
+++ b/gcc/ipa-fnsummary.c
@@ -331,7 +331,7 @@ static void
evaluate_conditions_for_known_args (struct cgraph_node *node,
bool inline_p,
vec<tree> known_vals,
- const std::vector<value_range> &known_value_ranges,
+ vec<value_range> known_value_ranges,
vec<ipa_agg_value_set> known_aggs,
clause_t *ret_clause,
clause_t *ret_nonspec_clause)
@@ -446,7 +446,7 @@ evaluate_conditions_for_known_args (struct cgraph_node *node,
continue;
}
}
- if (c->operand_num < (int) known_value_ranges.size ()
+ if (c->operand_num < (int) known_value_ranges.length ()
&& !c->agg_contents
&& !known_value_ranges[c->operand_num].undefined_p ()
&& !known_value_ranges[c->operand_num].varying_p ()
@@ -555,7 +555,7 @@ evaluate_properties_for_edge (struct cgraph_edge *e, bool inline_p,
{
struct cgraph_node *callee = e->callee->ultimate_alias_target ();
class ipa_fn_summary *info = ipa_fn_summaries->get (callee);
- std::vector<value_range> known_value_ranges (32);
+ auto_vec<value_range, 32> known_value_ranges;
class ipa_edge_args *args;
if (clause_ptr)
@@ -630,11 +630,11 @@ evaluate_properties_for_edge (struct cgraph_edge *e, bool inline_p,
i));
if (!vr.undefined_p () && !vr.varying_p ())
{
- if (!known_value_ranges.size ())
+ if (!known_value_ranges.length ())
{
- known_value_ranges.resize (count);
+ known_value_ranges.safe_grow (count);
for (int i = 0; i < count; ++i)
- known_value_ranges[i].set_undefined ();
+ new (&known_value_ranges[i]) value_range ();
}
known_value_ranges[i] = vr;
}
@@ -808,7 +808,7 @@ ipa_fn_summary_t::duplicate (cgraph_node *src,
}
evaluate_conditions_for_known_args (dst, false,
known_vals,
- std::vector<value_range> (),
+ vNULL,
vNULL,
&possible_truths,
/* We are going to specialize,
@@ -3692,8 +3692,7 @@ estimate_ipcp_clone_size_and_time (struct cgraph_node *node,
clause_t clause, nonspec_clause;
/* TODO: Also pass known value ranges. */
- evaluate_conditions_for_known_args (node, false, known_vals,
- std::vector<value_range> (),
+ evaluate_conditions_for_known_args (node, false, known_vals, vNULL,
known_aggs, &clause, &nonspec_clause);
ipa_call_context ctx (node, clause, nonspec_clause,
known_vals, known_contexts,
diff --git a/gcc/vec.h b/gcc/vec.h
index 3ad99b83690..db48e979d77 100644
--- a/gcc/vec.h
+++ b/gcc/vec.h
@@ -1281,7 +1281,10 @@ template<typename T, typename A>
inline size_t
vec<T, A, vl_embed>::embedded_size (unsigned alloc)
{
- typedef vec<T, A, vl_embed> vec_embedded;
+ struct alignas (T) U { char data[sizeof (T)]; };
+ typedef vec<U, A, vl_embed> vec_embedded;
+ static_assert (sizeof (vec_embedded) == sizeof(vec), "");
+ static_assert (alignof (vec_embedded) == alignof(vec), "");
return offsetof (vec_embedded, m_vecdata) + alloc * sizeof (T);
}
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