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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/tree-loop-distribution.c17
2 files changed, 15 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 99c5ca7..5fe7fd8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
2018-09-03 Alexander Monakov <amonakov@ispras.ru>
+ * tree-loop-distribution.c (offset_cmp): Convert to C-qsort-style
+ tri-state comparator.
+ (fuse_memset_builtins): Change std::stable_sort to gcc_stablesort.
+
+2018-09-03 Alexander Monakov <amonakov@ispras.ru>
+
* sort.cc (struct sort_ctx): New field 'nlim'. Use it...
(mergesort): ... here as maximum count for using netsort.
(gcc_qsort): Set nlim to 3 if stable sort is requested.
diff --git a/gcc/tree-loop-distribution.c b/gcc/tree-loop-distribution.c
index 1206614..d8db03b 100644
--- a/gcc/tree-loop-distribution.c
+++ b/gcc/tree-loop-distribution.c
@@ -90,7 +90,6 @@ along with GCC; see the file COPYING3. If not see
data reuse. */
#include "config.h"
-#define INCLUDE_ALGORITHM /* stable_sort */
#include "system.h"
#include "coretypes.h"
#include "backend.h"
@@ -2561,12 +2560,14 @@ version_for_distribution_p (vec<struct partition *> *partitions,
/* Compare base offset of builtin mem* partitions P1 and P2. */
-static bool
-offset_cmp (struct partition *p1, struct partition *p2)
+static int
+offset_cmp (const void *vp1, const void *vp2)
{
- gcc_assert (p1 != NULL && p1->builtin != NULL);
- gcc_assert (p2 != NULL && p2->builtin != NULL);
- return p1->builtin->dst_base_offset < p2->builtin->dst_base_offset;
+ struct partition *p1 = *(struct partition *const *) vp1;
+ struct partition *p2 = *(struct partition *const *) vp2;
+ unsigned HOST_WIDE_INT o1 = p1->builtin->dst_base_offset;
+ unsigned HOST_WIDE_INT o2 = p2->builtin->dst_base_offset;
+ return (o2 < o1) - (o1 < o2);
}
/* Fuse adjacent memset builtin PARTITIONS if possible. This is a special
@@ -2618,8 +2619,8 @@ fuse_memset_builtins (vec<struct partition *> *partitions)
}
/* Stable sort is required in order to avoid breaking dependence. */
- std::stable_sort (&(*partitions)[i],
- &(*partitions)[i] + j - i, offset_cmp);
+ gcc_stablesort (&(*partitions)[i], j - i, sizeof (*partitions)[i],
+ offset_cmp);
/* Continue with next partition. */
i = j;
}