From 515640c3e550c0943bc2bb6e414f501c6c6aabd6 Mon Sep 17 00:00:00 2001
From: Gary <github@gallan.co.uk>
Date: Fri, 22 Nov 2024 14:34:24 +0000
Subject: [PATCH 1/2] Add test for bug GH-16870 (Overly restrictive gmp_pow
 overflow checks)

---
 ext/gmp/tests/gh16870.phpt | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 ext/gmp/tests/gh16870.phpt

diff --git a/ext/gmp/tests/gh16870.phpt b/ext/gmp/tests/gh16870.phpt
new file mode 100644
index 0000000000000..ef0ff80856673
--- /dev/null
+++ b/ext/gmp/tests/gh16870.phpt
@@ -0,0 +1,24 @@
+--TEST--
+Bug GH-16870 (Overly restrictive gmp_pow overflow checks)
+--EXTENSIONS--
+gmp
+--FILE--
+<?php
+echo '64^11 = 0x', gmp_strval(gmp_pow(64, 11), 16), "\n";
+echo '2^31 = 0x', gmp_strval(gmp_pow(2, 31), 16), "\n";
+echo '2^32 = 0x', gmp_strval(gmp_pow(2, 32), 16), "\n";
+echo '2^64 = 0x', gmp_strval(gmp_pow(2, 64), 16), "\n";
+echo '2^128 = 0x', gmp_strval(gmp_pow(2, 128), 16), "\n";
+echo '2^512 = 0x', gmp_strval(gmp_pow(2, 512), 16), "\n";
+echo '2^1024 = 0x', gmp_strval(gmp_pow(2, 1024), 16), "\n";
+echo '2^8192 = 0x', gmp_strval(gmp_pow(2, 8192), 16), "\n";
+?>
+--EXPECT--
+64^11 = 0x40000000000000000
+2^31 = 0x80000000
+2^32 = 0x100000000
+2^64 = 0x10000000000000000
+2^128 = 0x100000000000000000000000000000000
+2^512 = 0x100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+2^1024 = 0x10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+2^8192 = 0x100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

From 52e504f63caa3f343cbd0c50f650fbafeb6e8b4b Mon Sep 17 00:00:00 2001
From: GaryAllan <github@gallan.co.uk>
Date: Fri, 22 Nov 2024 16:18:55 +0000
Subject: [PATCH 2/2] Update ext/gmp/tests/gh16870.phpt

Add XFAIL header for CI

Co-authored-by: Gina Peter Banyard <girgias@php.net>
---
 ext/gmp/tests/gh16870.phpt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/gmp/tests/gh16870.phpt b/ext/gmp/tests/gh16870.phpt
index ef0ff80856673..2cdbc44f3f1ac 100644
--- a/ext/gmp/tests/gh16870.phpt
+++ b/ext/gmp/tests/gh16870.phpt
@@ -2,6 +2,8 @@
 Bug GH-16870 (Overly restrictive gmp_pow overflow checks)
 --EXTENSIONS--
 gmp
+--XFAIL--
+Currently fails after the introduction of overflow warning
 --FILE--
 <?php
 echo '64^11 = 0x', gmp_strval(gmp_pow(64, 11), 16), "\n";