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* [gcc(refs/users/marxin/heads/loop-unswitching-switch-v5)] Ranger - grow.
@ 2021-11-09 10:06 Martin Liska
0 siblings, 0 replies; only message in thread
From: Martin Liska @ 2021-11-09 10:06 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:5acf02cf9ab6b1af474fb0f2b8f86c6d43c835e1
commit 5acf02cf9ab6b1af474fb0f2b8f86c6d43c835e1
Author: Martin Liska <mliska@suse.cz>
Date: Tue Nov 9 10:08:31 2021 +0100
Ranger - grow.
Diff:
---
gcc/gimple-range-cache.cc | 29 +++++++++++++++++++++++++++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/gcc/gimple-range-cache.cc b/gcc/gimple-range-cache.cc
index e5591bab0ef..e010d35904f 100644
--- a/gcc/gimple-range-cache.cc
+++ b/gcc/gimple-range-cache.cc
@@ -210,6 +210,7 @@ protected:
int_range<2> m_undefined;
tree m_type;
irange_allocator *m_irange_allocator;
+ void grow ();
};
@@ -229,12 +230,33 @@ sbr_vector::sbr_vector (tree t, irange_allocator *allocator)
m_undefined.set_undefined ();
}
+void
+sbr_vector::grow ()
+{
+ int curr_bb_size = last_basic_block_for_fn (cfun);
+ gcc_checking_assert (curr_bb_size > m_tab_size);
+
+ int inc = MAX ((curr_bb_size - m_tab_size) * 2, 128);
+ inc = MAX (inc, curr_bb_size / 10);
+ int new_size = inc + curr_bb_size;
+
+ irange **t = (irange **)m_irange_allocator->get_memory (new_size
+ * sizeof (irange *));
+ memcpy (t, m_tab, m_tab_size * sizeof (irange *));
+ memset (t + m_tab_size, 0, (new_size - m_tab_size) * sizeof (irange *));
+
+ m_tab = t;
+ m_tab_size = new_size;
+}
+
// Set the range for block BB to be R.
bool
sbr_vector::set_bb_range (const_basic_block bb, const irange &r)
{
irange *m;
+ if (bb->index >= m_tab_size)
+ grow ();
gcc_checking_assert (bb->index < m_tab_size);
if (r.varying_p ())
m = &m_varying;
@@ -252,6 +274,8 @@ sbr_vector::set_bb_range (const_basic_block bb, const irange &r)
bool
sbr_vector::get_bb_range (irange &r, const_basic_block bb)
{
+ if (bb->index >= m_tab_size)
+ grow ();
gcc_checking_assert (bb->index < m_tab_size);
irange *m = m_tab[bb->index];
if (m)
@@ -267,8 +291,9 @@ sbr_vector::get_bb_range (irange &r, const_basic_block bb)
bool
sbr_vector::bb_range_p (const_basic_block bb)
{
- gcc_checking_assert (bb->index < m_tab_size);
- return m_tab[bb->index] != NULL;
+ if (bb->index < m_tab_size)
+ return m_tab[bb->index] != NULL;
+ return false;
}
// This class implements the on entry cache via a sparse bitmap.
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