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[Bug rtl-optimization/25115] [4.2 Regression] Segmentation fault in pre_insert_copy_insn
- From: "krebbel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Nov 2005 15:34:02 -0000
- Subject: [Bug rtl-optimization/25115] [4.2 Regression] Segmentation fault in pre_insert_copy_insn
- References: <bug-25115-5208@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla 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