Use new overflow-safe integer comparison functions.

Commit 6b80394781 introduced integer comparison functions designed
to be as efficient as possible while avoiding overflow.  This
commit makes use of these functions in many of the in-tree qsort()
comparators to help ensure transitivity.  Many of these comparator
functions should also see a small performance boost.

Author: Mats Kindahl
Reviewed-by: Andres Freund, Fabrízio de Royes Mello
Discussion: https://postgr.es/m/CA%2B14426g2Wa9QuUpmakwPxXFWG_1FaY0AsApkvcTBy-YfS6uaw%40mail.gmail.com

29 files changed, 67 insertions, 139 deletions

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 709edd1c179..e9cfc136042 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -19,6 +19,7 @@
 #include "access/nbtxlog.h"
 #include "access/transam.h"
 #include "access/xloginsert.h"
+#include "common/int.h"
 #include "common/pg_prng.h"
 #include "lib/qunique.h"
 #include "miscadmin.h"
@@ -3013,10 +3014,5 @@ _bt_blk_cmp(const void *arg1, const void *arg2)
 	BlockNumber b1 = *((BlockNumber *) arg1);
 	BlockNumber b2 = *((BlockNumber *) arg2);
 
-	if (b1 < b2)
-		return -1;
-	else if (b1 > b2)
-		return 1;
-
-	return 0;
+	return pg_cmp_u32(b1, b2);
 }
diff --git a/src/backend/access/nbtree/nbtpage.c b/src/backend/access/nbtree/nbtpage.c
index 567bade9f45..90990ea77a1 100644
--- a/src/backend/access/nbtree/nbtpage.c
+++ b/src/backend/access/nbtree/nbtpage.c
@@ -28,6 +28,7 @@
 #include "access/transam.h"
 #include "access/xlog.h"
 #include "access/xloginsert.h"
+#include "common/int.h"
 #include "miscadmin.h"
 #include "storage/indexfsm.h"
 #include "storage/lmgr.h"
@@ -1466,14 +1467,9 @@ _bt_delitems_cmp(const void *a, const void *b)
 	TM_IndexDelete *indexdelete1 = (TM_IndexDelete *) a;
 	TM_IndexDelete *indexdelete2 = (TM_IndexDelete *) b;
 
-	if (indexdelete1->id > indexdelete2->id)
-		return 1;
-	if (indexdelete1->id < indexdelete2->id)
-		return -1;
+	Assert(indexdelete1->id != indexdelete2->id);
 
-	Assert(false);
-
-	return 0;
+	return pg_cmp_s16(indexdelete1->id, indexdelete2->id);
 }
 
 /*
diff --git a/src/backend/access/nbtree/nbtsplitloc.c b/src/backend/access/nbtree/nbtsplitloc.c
index d0b1d825787..490e7bfd4df 100644
--- a/src/backend/access/nbtree/nbtsplitloc.c
+++ b/src/backend/access/nbtree/nbtsplitloc.c
@@ -15,6 +15,7 @@
 #include "postgres.h"
 
 #include "access/nbtree.h"
+#include "common/int.h"
 #include "storage/lmgr.h"
 
 typedef enum
@@ -596,12 +597,7 @@ _bt_splitcmp(const void *arg1, const void *arg2)
 	SplitPoint *split1 = (SplitPoint *) arg1;
 	SplitPoint *split2 = (SplitPoint *) arg2;
 
-	if (split1->curdelta > split2->curdelta)
-		return 1;
-	if (split1->curdelta < split2->curdelta)
-		return -1;
-
-	return 0;
+	return pg_cmp_s16(split1->curdelta, split2->curdelta);
 }
 
 /*
diff --git a/src/backend/access/spgist/spgdoinsert.c b/src/backend/access/spgist/spgdoinsert.c
index bb063c858d9..a4995c168b4 100644
--- a/src/backend/access/spgist/spgdoinsert.c
+++ b/src/backend/access/spgist/spgdoinsert.c
@@ -19,6 +19,7 @@
 #include "access/spgist_private.h"
 #include "access/spgxlog.h"
 #include "access/xloginsert.h"
+#include "common/int.h"
 #include "common/pg_prng.h"
 #include "miscadmin.h"
 #include "storage/bufmgr.h"
@@ -110,9 +111,7 @@ addNode(SpGistState *state, SpGistInnerTuple tuple, Datum label, int offset)
 static int
 cmpOffsetNumbers(const void *a, const void *b)
 {
-	if (*(const OffsetNumber *) a == *(const OffsetNumber *) b)
-		return 0;
-	return (*(const OffsetNumber *) a > *(const OffsetNumber *) b) ? 1 : -1;
+	return pg_cmp_u16(*(const OffsetNumber *) a, *(const OffsetNumber *) b);
 }
 
 /*
diff --git a/src/backend/access/spgist/spgtextproc.c b/src/backend/access/spgist/spgtextproc.c
index b8fd0c2ad85..d5db5225a9c 100644
--- a/src/backend/access/spgist/spgtextproc.c
+++ b/src/backend/access/spgist/spgtextproc.c
@@ -40,6 +40,7 @@
 #include "postgres.h"
 
 #include "access/spgist.h"
+#include "common/int.h"
 #include "catalog/pg_type.h"
 #include "mb/pg_wchar.h"
 #include "utils/builtins.h"
@@ -325,7 +326,7 @@ cmpNodePtr(const void *a, const void *b)
 	const spgNodePtr *aa = (const spgNodePtr *) a;
 	const spgNodePtr *bb = (const spgNodePtr *) b;
 
-	return aa->c - bb->c;
+	return pg_cmp_s16(aa->c, bb->c);
 }
 
 Datum
diff --git a/src/backend/backup/basebackup_incremental.c b/src/backend/backup/basebackup_incremental.c
index 0504c465db8..e994ee66bbf 100644
--- a/src/backend/backup/basebackup_incremental.c
+++ b/src/backend/backup/basebackup_incremental.c
@@ -27,6 +27,7 @@
 #include "common/blkreftable.h"
 #include "common/parse_manifest.h"
 #include "common/hashfn.h"
+#include "common/int.h"
 #include "postmaster/walsummarizer.h"
 
 #define	BLOCKS_PER_READ			512
@@ -994,10 +995,5 @@ compare_block_numbers(const void *a, const void *b)
 	BlockNumber aa = *(BlockNumber *) a;
 	BlockNumber bb = *(BlockNumber *) b;
 
-	if (aa > bb)
-		return 1;
-	else if (aa == bb)
-		return 0;
-	else
-		return -1;
+	return pg_cmp_u32(aa, bb);
 }
diff --git a/src/backend/backup/walsummary.c b/src/backend/backup/walsummary.c
index 867870aaad7..4d047e1c02f 100644
--- a/src/backend/backup/walsummary.c
+++ b/src/backend/backup/walsummary.c
@@ -17,6 +17,7 @@
 
 #include "access/xlog_internal.h"
 #include "backup/walsummary.h"
+#include "common/int.h"
 #include "utils/wait_event.h"
 
 static bool IsWalSummaryFilename(char *filename);
@@ -355,9 +356,5 @@ ListComparatorForWalSummaryFiles(const ListCell *a, const ListCell *b)
 	WalSummaryFile *ws1 = lfirst(a);
 	WalSummaryFile *ws2 = lfirst(b);
 
-	if (ws1->start_lsn < ws2->start_lsn)
-		return -1;
-	if (ws1->start_lsn > ws2->start_lsn)
-		return 1;
-	return 0;
+	return pg_cmp_u64(ws1->start_lsn, ws2->start_lsn);
 }
diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c
index 252e106cada..348943e36cc 100644
--- a/src/backend/catalog/heap.c
+++ b/src/backend/catalog/heap.c
@@ -56,6 +56,7 @@
 #include "catalog/storage.h"
 #include "commands/tablecmds.h"
 #include "commands/typecmds.h"
+#include "common/int.h"
 #include "miscadmin.h"
 #include "nodes/nodeFuncs.h"
 #include "optimizer/optimizer.h"
@@ -2762,11 +2763,7 @@ list_cookedconstr_attnum_cmp(const ListCell *p1, const ListCell *p2)
 	AttrNumber	v1 = ((CookedConstraint *) lfirst(p1))->attnum;
 	AttrNumber	v2 = ((CookedConstraint *) lfirst(p2))->attnum;
 
-	if (v1 < v2)
-		return -1;
-	if (v1 > v2)
-		return 1;
-	return 0;
+	return pg_cmp_s16(v1, v2);
 }
 
 /*
diff --git a/src/backend/nodes/list.c b/src/backend/nodes/list.c
index 957186bef5a..e2615ab1050 100644
--- a/src/backend/nodes/list.c
+++ b/src/backend/nodes/list.c
@@ -17,6 +17,7 @@
  */
 #include "postgres.h"
 
+#include "common/int.h"
 #include "nodes/pg_list.h"
 #include "port/pg_bitutils.h"
 #include "utils/memdebug.h"
@@ -1692,11 +1693,7 @@ list_int_cmp(const ListCell *p1, const ListCell *p2)
 	int			v1 = lfirst_int(p1);
 	int			v2 = lfirst_int(p2);
 
-	if (v1 < v2)
-		return -1;
-	if (v1 > v2)
-		return 1;
-	return 0;
+	return pg_cmp_s32(v1, v2);
 }
 
 /*
@@ -1708,9 +1705,5 @@ list_oid_cmp(const ListCell *p1, const ListCell *p2)
 	Oid			v1 = lfirst_oid(p1);
 	Oid			v2 = lfirst_oid(p2);
 
-	if (v1 < v2)
-		return -1;
-	if (v1 > v2)
-		return 1;
-	return 0;
+	return pg_cmp_u32(v1, v2);
 }
diff --git a/src/backend/nodes/tidbitmap.c b/src/backend/nodes/tidbitmap.c
index 0f4850065fb..e8ab5d78fcc 100644
--- a/src/backend/nodes/tidbitmap.c
+++ b/src/backend/nodes/tidbitmap.c
@@ -42,6 +42,7 @@
 
 #include "access/htup_details.h"
 #include "common/hashfn.h"
+#include "common/int.h"
 #include "nodes/bitmapset.h"
 #include "nodes/tidbitmap.h"
 #include "storage/lwlock.h"
@@ -1425,11 +1426,7 @@ tbm_comparator(const void *left, const void *right)
 	BlockNumber l = (*((PagetableEntry *const *) left))->blockno;
 	BlockNumber r = (*((PagetableEntry *const *) right))->blockno;
 
-	if (l < r)
-		return -1;
-	else if (l > r)
-		return 1;
-	return 0;
+	return pg_cmp_u32(l, r);
 }
 
 /*
diff --git a/src/backend/parser/parse_agg.c b/src/backend/parser/parse_agg.c
index 7b211a7743f..9d151a880b8 100644
--- a/src/backend/parser/parse_agg.c
+++ b/src/backend/parser/parse_agg.c
@@ -18,6 +18,7 @@
 #include "catalog/pg_aggregate.h"
 #include "catalog/pg_constraint.h"
 #include "catalog/pg_type.h"
+#include "common/int.h"
 #include "nodes/makefuncs.h"
 #include "nodes/nodeFuncs.h"
 #include "optimizer/optimizer.h"
@@ -1760,7 +1761,7 @@ cmp_list_len_asc(const ListCell *a, const ListCell *b)
 	int			la = list_length((const List *) lfirst(a));
 	int			lb = list_length((const List *) lfirst(b));
 
-	return (la > lb) ? 1 : (la == lb) ? 0 : -1;
+	return pg_cmp_s32(la, lb);
 }
 
 /* list_sort comparator to sort sub-lists by length and contents */
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index 37998f73871..2ab344c1f8e 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -78,6 +78,7 @@
 #include "catalog/pg_database.h"
 #include "commands/dbcommands.h"
 #include "commands/vacuum.h"
+#include "common/int.h"
 #include "lib/ilist.h"
 #include "libpq/pqsignal.h"
 #include "miscadmin.h"
@@ -1120,10 +1121,8 @@ rebuild_database_list(Oid newdb)
 static int
 db_comparator(const void *a, const void *b)
 {
-	if (((const avl_dbase *) a)->adl_score == ((const avl_dbase *) b)->adl_score)
-		return 0;
-	else
-		return (((const avl_dbase *) a)->adl_score < ((const avl_dbase *) b)->adl_score) ? 1 : -1;
+	return pg_cmp_s32(((const avl_dbase *) a)->adl_score,
+					  ((const avl_dbase *) b)->adl_score);
 }
 
 /*
diff --git a/src/backend/replication/logical/reorderbuffer.c b/src/backend/replication/logical/reorderbuffer.c
index bbf0966182f..5446df3c647 100644
--- a/src/backend/replication/logical/reorderbuffer.c
+++ b/src/backend/replication/logical/reorderbuffer.c
@@ -91,6 +91,7 @@
 #include "access/xact.h"
 #include "access/xlog_internal.h"
 #include "catalog/catalog.h"
+#include "common/int.h"
 #include "lib/binaryheap.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -5119,11 +5120,7 @@ file_sort_by_lsn(const ListCell *a_p, const ListCell *b_p)
 	RewriteMappingFile *a = (RewriteMappingFile *) lfirst(a_p);
 	RewriteMappingFile *b = (RewriteMappingFile *) lfirst(b_p);
 
-	if (a->lsn < b->lsn)
-		return -1;
-	else if (a->lsn > b->lsn)
-		return 1;
-	return 0;
+	return pg_cmp_u64(a->lsn, b->lsn);
 }
 
 /*
diff --git a/src/backend/replication/syncrep.c b/src/backend/replication/syncrep.c
index 2e6493aaaa4..bfcd8fa13e9 100644
--- a/src/backend/replication/syncrep.c
+++ b/src/backend/replication/syncrep.c
@@ -75,6 +75,7 @@
 #include <unistd.h>
 
 #include "access/xact.h"
+#include "common/int.h"
 #include "miscadmin.h"
 #include "pgstat.h"
 #include "replication/syncrep.h"
@@ -698,12 +699,7 @@ cmp_lsn(const void *a, const void *b)
 	XLogRecPtr	lsn1 = *((const XLogRecPtr *) a);
 	XLogRecPtr	lsn2 = *((const XLogRecPtr *) b);
 
-	if (lsn1 > lsn2)
-		return -1;
-	else if (lsn1 == lsn2)
-		return 0;
-	else
-		return 1;
+	return pg_cmp_u64(lsn2, lsn1);
 }
 
 /*
diff --git a/src/backend/utils/adt/oid.c b/src/backend/utils/adt/oid.c
index 62bcfc5b566..56fb1fd77ce 100644
--- a/src/backend/utils/adt/oid.c
+++ b/src/backend/utils/adt/oid.c
@@ -18,6 +18,7 @@
 #include <limits.h>
 
 #include "catalog/pg_type.h"
+#include "common/int.h"
 #include "libpq/pqformat.h"
 #include "nodes/miscnodes.h"
 #include "nodes/value.h"
@@ -259,11 +260,7 @@ oid_cmp(const void *p1, const void *p2)
 	Oid			v1 = *((const Oid *) p1);
 	Oid			v2 = *((const Oid *) p2);
 
-	if (v1 < v2)
-		return -1;
-	if (v1 > v2)
-		return 1;
-	return 0;
+	return pg_cmp_u32(v1, v2);
 }
 
 
diff --git a/src/backend/utils/adt/tsgistidx.c b/src/backend/utils/adt/tsgistidx.c
index a62b285365a..3fb76964343 100644
--- a/src/backend/utils/adt/tsgistidx.c
+++ b/src/backend/utils/adt/tsgistidx.c
@@ -17,6 +17,7 @@
 #include "access/gist.h"
 #include "access/heaptoast.h"
 #include "access/reloptions.h"
+#include "common/int.h"
 #include "lib/qunique.h"
 #include "port/pg_bitutils.h"
 #include "tsearch/ts_utils.h"
@@ -136,9 +137,7 @@ compareint(const void *va, const void *vb)
 	int32		a = *((const int32 *) va);
 	int32		b = *((const int32 *) vb);
 
-	if (a == b)
-		return 0;
-	return (a > b) ? 1 : -1;
+	return pg_cmp_s32(a, b);
 }
 
 static void
@@ -598,10 +597,7 @@ comparecost(const void *va, const void *vb)
 	const SPLITCOST *a = (const SPLITCOST *) va;
 	const SPLITCOST *b = (const SPLITCOST *) vb;
 
-	if (a->cost == b->cost)
-		return 0;
-	else
-		return (a->cost > b->cost) ? 1 : -1;
+	return pg_cmp_s32(a->cost, b->cost);
 }
 
 
diff --git a/src/backend/utils/adt/tsquery_gist.c b/src/backend/utils/adt/tsquery_gist.c
index f0b1c81c816..2db304b10bd 100644
--- a/src/backend/utils/adt/tsquery_gist.c
+++ b/src/backend/utils/adt/tsquery_gist.c
@@ -16,6 +16,7 @@
 
 #include "access/gist.h"
 #include "access/stratnum.h"
+#include "common/int.h"
 #include "tsearch/ts_utils.h"
 #include "utils/builtins.h"
 
@@ -156,10 +157,8 @@ typedef struct
 static int
 comparecost(const void *a, const void *b)
 {
-	if (((const SPLITCOST *) a)->cost == ((const SPLITCOST *) b)->cost)
-		return 0;
-	else
-		return (((const SPLITCOST *) a)->cost > ((const SPLITCOST *) b)->cost) ? 1 : -1;
+	return pg_cmp_s32(((const SPLITCOST *) a)->cost,
+					  ((const SPLITCOST *) b)->cost);
 }
 
 #define WISH_F(a,b,c) (double)( -(double)(((a)-(b))*((a)-(b))*((a)-(b)))*(c) )
diff --git a/src/backend/utils/adt/tsvector.c b/src/backend/utils/adt/tsvector.c
index fb7b7c712a4..10bc4f2234f 100644
--- a/src/backend/utils/adt/tsvector.c
+++ b/src/backend/utils/adt/tsvector.c
@@ -14,6 +14,7 @@
 
 #include "postgres.h"
 
+#include "common/int.h"
 #include "libpq/pqformat.h"
 #include "nodes/miscnodes.h"
 #include "tsearch/ts_locale.h"
@@ -37,9 +38,7 @@ compareWordEntryPos(const void *a, const void *b)
 	int			apos = WEP_GETPOS(*(const WordEntryPos *) a);
 	int			bpos = WEP_GETPOS(*(const WordEntryPos *) b);
 
-	if (apos == bpos)
-		return 0;
-	return (apos > bpos) ? 1 : -1;
+	return pg_cmp_s32(apos, bpos);
 }
 
 /*
diff --git a/src/backend/utils/adt/tsvector_op.c b/src/backend/utils/adt/tsvector_op.c
index 71386d0a1ff..947a592ed28 100644
--- a/src/backend/utils/adt/tsvector_op.c
+++ b/src/backend/utils/adt/tsvector_op.c
@@ -19,6 +19,7 @@
 #include "catalog/namespace.h"
 #include "catalog/pg_type.h"
 #include "commands/trigger.h"
+#include "common/int.h"
 #include "executor/spi.h"
 #include "funcapi.h"
 #include "lib/qunique.h"
@@ -435,9 +436,7 @@ compare_int(const void *va, const void *vb)
 	int			a = *((const int *) va);
 	int			b = *((const int *) vb);
 
-	if (a == b)
-		return 0;
-	return (a > b) ? 1 : -1;
+	return pg_cmp_s32(a, b);
 }
 
 static int
diff --git a/src/backend/utils/adt/xid.c b/src/backend/utils/adt/xid.c
index 63adf5668b5..ae273b19610 100644
--- a/src/backend/utils/adt/xid.c
+++ b/src/backend/utils/adt/xid.c
@@ -19,6 +19,7 @@
 #include "access/multixact.h"
 #include "access/transam.h"
 #include "access/xact.h"
+#include "common/int.h"
 #include "libpq/pqformat.h"
 #include "utils/builtins.h"
 #include "utils/xid8.h"
@@ -140,11 +141,7 @@ xidComparator(const void *arg1, const void *arg2)
 	TransactionId xid1 = *(const TransactionId *) arg1;
 	TransactionId xid2 = *(const TransactionId *) arg2;
 
-	if (xid1 > xid2)
-		return 1;
-	if (xid1 < xid2)
-		return -1;
-	return 0;
+	return pg_cmp_u32(xid1, xid2);
 }
 
 /*
diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index ac106b40e30..50acae45298 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -69,6 +69,7 @@
 #include "commands/policy.h"
 #include "commands/publicationcmds.h"
 #include "commands/trigger.h"
+#include "common/int.h"
 #include "miscadmin.h"
 #include "nodes/makefuncs.h"
 #include "nodes/nodeFuncs.h"
@@ -4520,7 +4521,7 @@ AttrDefaultCmp(const void *a, const void *b)
 	const AttrDefault *ada = (const AttrDefault *) a;
 	const AttrDefault *adb = (const AttrDefault *) b;
 
-	return ada->adnum - adb->adnum;
+	return pg_cmp_s16(ada->adnum, adb->adnum);
 }
 
 /*
diff --git a/src/backend/utils/cache/syscache.c b/src/backend/utils/cache/syscache.c
index 662f9308647..2292237f85f 100644
--- a/src/backend/utils/cache/syscache.c
+++ b/src/backend/utils/cache/syscache.c
@@ -29,6 +29,7 @@
 #include "catalog/pg_shdepend_d.h"
 #include "catalog/pg_shdescription_d.h"
 #include "catalog/pg_shseclabel_d.h"
+#include "common/int.h"
 #include "lib/qunique.h"
 #include "utils/catcache.h"
 #include "utils/lsyscache.h"
@@ -676,7 +677,5 @@ oid_compare(const void *a, const void *b)
 	Oid			oa = *((const Oid *) a);
 	Oid			ob = *((const Oid *) b);
 
-	if (oa == ob)
-		return 0;
-	return (oa > ob) ? 1 : -1;
+	return pg_cmp_u32(oa, ob);
 }
diff --git a/src/backend/utils/cache/typcache.c b/src/backend/utils/cache/typcache.c
index 84fc83cb11f..2842bde9071 100644
--- a/src/backend/utils/cache/typcache.c
+++ b/src/backend/utils/cache/typcache.c
@@ -57,6 +57,7 @@
 #include "catalog/pg_range.h"
 #include "catalog/pg_type.h"
 #include "commands/defrem.h"
+#include "common/int.h"
 #include "executor/executor.h"
 #include "lib/dshash.h"
 #include "optimizer/optimizer.h"
@@ -2722,12 +2723,7 @@ enum_oid_cmp(const void *left, const void *right)
 	const EnumItem *l = (const EnumItem *) left;
 	const EnumItem *r = (const EnumItem *) right;
 
-	if (l->enum_oid < r->enum_oid)
-		return -1;
-	else if (l->enum_oid > r->enum_oid)
-		return 1;
-	else
-		return 0;
+	return pg_cmp_u32(l->enum_oid, r->enum_oid);
 }
 
 /*
diff --git a/src/backend/utils/resowner/resowner.c b/src/backend/utils/resowner/resowner.c
index aa199b23ffd..ab9343bc5cf 100644
--- a/src/backend/utils/resowner/resowner.c
+++ b/src/backend/utils/resowner/resowner.c
@@ -46,6 +46,7 @@
 #include "postgres.h"
 
 #include "common/hashfn.h"
+#include "common/int.h"
 #include "storage/ipc.h"
 #include "storage/predicate.h"
 #include "storage/proc.h"
@@ -264,14 +265,7 @@ resource_priority_cmp(const void *a, const void *b)
 
 	/* Note: reverse order */
 	if (ra->kind->release_phase == rb->kind->release_phase)
-	{
-		if (ra->kind->release_priority == rb->kind->release_priority)
-			return 0;
-		else if (ra->kind->release_priority > rb->kind->release_priority)
-			return -1;
-		else
-			return 1;
-	}
+		return pg_cmp_u32(rb->kind->release_priority, ra->kind->release_priority);
 	else if (ra->kind->release_phase > rb->kind->release_phase)
 		return -1;
 	else
diff --git a/src/bin/pg_dump/pg_dump_sort.c b/src/bin/pg_dump/pg_dump_sort.c
index f358dd22b9d..8ee8a42781a 100644
--- a/src/bin/pg_dump/pg_dump_sort.c
+++ b/src/bin/pg_dump/pg_dump_sort.c
@@ -16,6 +16,7 @@
 #include "postgres_fe.h"
 
 #include "catalog/pg_class_d.h"
+#include "common/int.h"
 #include "lib/binaryheap.h"
 #include "pg_backup_archiver.h"
 #include "pg_backup_utils.h"
@@ -1504,9 +1505,5 @@ int_cmp(void *a, void *b, void *arg)
 	int			ai = (int) (intptr_t) a;
 	int			bi = (int) (intptr_t) b;
 
-	if (ai < bi)
-		return -1;
-	if (ai > bi)
-		return 1;
-	return 0;
+	return pg_cmp_s32(ai, bi);
 }
diff --git a/src/bin/pg_upgrade/function.c b/src/bin/pg_upgrade/function.c
index af998f74d37..d65153de819 100644
--- a/src/bin/pg_upgrade/function.c
+++ b/src/bin/pg_upgrade/function.c
@@ -11,6 +11,7 @@
 
 #include "access/transam.h"
 #include "catalog/pg_language_d.h"
+#include "common/int.h"
 #include "pg_upgrade.h"
 
 /*
@@ -29,17 +30,16 @@ library_name_compare(const void *p1, const void *p2)
 {
 	const char *str1 = ((const LibraryInfo *) p1)->name;
 	const char *str2 = ((const LibraryInfo *) p2)->name;
-	int			slen1 = strlen(str1);
-	int			slen2 = strlen(str2);
+	size_t		slen1 = strlen(str1);
+	size_t		slen2 = strlen(str2);
 	int			cmp = strcmp(str1, str2);
 
 	if (slen1 != slen2)
-		return slen1 - slen2;
+		return pg_cmp_size(slen1, slen2);
 	if (cmp != 0)
 		return cmp;
-	else
-		return ((const LibraryInfo *) p1)->dbnum -
-			((const LibraryInfo *) p2)->dbnum;
+	return pg_cmp_s32(((const LibraryInfo *) p1)->dbnum,
+					  ((const LibraryInfo *) p2)->dbnum);
 }
 
 
diff --git a/src/bin/pg_walsummary/pg_walsummary.c b/src/bin/pg_walsummary/pg_walsummary.c
index 1341c83c69b..485c72d9395 100644
--- a/src/bin/pg_walsummary/pg_walsummary.c
+++ b/src/bin/pg_walsummary/pg_walsummary.c
@@ -16,6 +16,7 @@
 #include <limits.h>
 
 #include "common/blkreftable.h"
+#include "common/int.h"
 #include "common/logging.h"
 #include "fe_utils/option_utils.h"
 #include "lib/stringinfo.h"
@@ -219,12 +220,7 @@ compare_block_numbers(const void *a, const void *b)
 	BlockNumber aa = *(BlockNumber *) a;
 	BlockNumber bb = *(BlockNumber *) b;
 
-	if (aa > bb)
-		return 1;
-	else if (aa == bb)
-		return 0;
-	else
-		return -1;
+	return pg_cmp_u32(aa, bb);
 }
 
 /*
diff --git a/src/bin/psql/crosstabview.c b/src/bin/psql/crosstabview.c
index c6116b7238e..305ed4ab0a8 100644
--- a/src/bin/psql/crosstabview.c
+++ b/src/bin/psql/crosstabview.c
@@ -8,6 +8,7 @@
 #include "postgres_fe.h"
 
 #include "common.h"
+#include "common/int.h"
 #include "common/logging.h"
 #include "crosstabview.h"
 #include "pqexpbuffer.h"
@@ -709,5 +710,5 @@ pivotFieldCompare(const void *a, const void *b)
 static int
 rankCompare(const void *a, const void *b)
 {
-	return *((const int *) a) - *((const int *) b);
+	return pg_cmp_s32(*(const int *) a, *(const int *) b);
 }
diff --git a/src/include/access/gin_private.h b/src/include/access/gin_private.h
index 51d0c74a6b0..3013a44bae1 100644
--- a/src/include/access/gin_private.h
+++ b/src/include/access/gin_private.h
@@ -14,6 +14,7 @@
 #include "access/gin.h"
 #include "access/ginblock.h"
 #include "access/itup.h"
+#include "common/int.h"
 #include "catalog/pg_am_d.h"
 #include "fmgr.h"
 #include "lib/rbtree.h"
@@ -489,12 +490,7 @@ ginCompareItemPointers(ItemPointer a, ItemPointer b)
 	uint64		ia = (uint64) GinItemPointerGetBlockNumber(a) << 32 | GinItemPointerGetOffsetNumber(a);
 	uint64		ib = (uint64) GinItemPointerGetBlockNumber(b) << 32 | GinItemPointerGetOffsetNumber(b);
 
-	if (ia == ib)
-		return 0;
-	else if (ia > ib)
-		return 1;
-	else
-		return -1;
+	return pg_cmp_u64(ia, ib);
 }
 
 extern int	ginTraverseLock(Buffer buffer, bool searchMode);