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+! { dg-do run }
+! { dg-options "-fbounds-check" }
+! Tests the fix for PR31257, in which achar caused an ICE because it had no
+! charlen.
+!
+! The code comes from http://www.star.le.ac.uk/~cgp/fortran.html (by Clive Page)
+! Reported by Thomas Koenig <tkoenig@gcc.gnu.org>
+!
+ if (any (Up ("AbCdEfGhIjKlM") .ne. (/"ABCDEFGHIJKLM"/))) call abort ()
+contains
+ Character (len=20) Function Up (string)
+ Character(len=*) string
+ Up = &
+ transfer(merge(achar(iachar(transfer(string,"x",len(string)))- &
+ (ichar('a')-ichar('A')) ), &
+ transfer(string,"x",len(string)) , &
+ transfer(string,"x",len(string)) >= "a" .and. &
+ transfer(string,"x",len(string)) <= "z"), repeat("x", len(string)))
+ return
+ end function Up
+end