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--- /dev/null
+++ b/Zend/tests/bug53632.phpt
@@ -0,0 +1,10 @@
+--TEST--
+zend_strtod() hangs with 2.2250738585072011e-308
+--FILE--
+<?php
+$d = 2.2250738585072011e-308;
+
+echo "Done\n";
+?>
+--EXPECTF--
+Done
--- a/Zend/zend_strtod.c
+++ b/Zend/zend_strtod.c
@@ -2045,7 +2045,7 @@ ZEND_API double zend_strtod (CONST char
int bb2, bb5, bbe, bd2, bd5, bbbits, bs2, c, dsign,
e, e1, esign, i, j, k, nd, nd0, nf, nz, nz0, sign;
CONST char *s, *s0, *s1;
- double aadj, aadj1, adj;
+ volatile double aadj, aadj1, adj;
volatile _double rv, rv0;
Long L;
ULong y, z;
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