[Bug rtl-optimization/25115] [4.2 Regression] Segmentation fault in pre_insert_copy_insn

[krebbel at gcc dot gnu dot org]

------- Comment #6 from krebbel at gcc dot gnu dot org  2005-11-28 15:34 -------
Created an attachment (id=10354)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10354&action=view)
Testcase which failes on S/390 64bit with -O2

This testcase is reduced from gengtype-lex.c. Due to this bug it is currently
not possible to bootstrap gcc dfp-branch on s390x (64bit).

The patch proposed by Paolo Bonzini fixes the problem and produces slightly
better code resulting in five assembler instructions less.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25115