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Bug 157792 - internal compiler error: in make_decl_rtl, at varasm.c:868
Summary: internal compiler error: in make_decl_rtl, at varasm.c:868
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: rawhide
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2005-05-15 17:18 UTC by Petr Vandrovec
Modified: 2007-11-30 22:11 UTC (History)
0 users

Fixed In Version: 4.0.0-6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-05-17 07:44:02 UTC

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
GNU Compiler Collection 21610 None None None Never

Description Petr Vandrovec 2005-05-15 17:18:07 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.8) Gecko/20050513 Debian/1.7.8-1

Description of problem:
gcc-4 fails to compile correct code with ICE in make_decl_rtl.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
petr-lx:/tmp$ /usr/bin/gcc -O2 bad.c
bad.c:14: internal compiler error: in make_decl_rtl, at varasm.c:868
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:> for instructions.
Preprocessed source stored into /tmp/ccayquSO.out file, please attach this to your bugreport.
petr-lx:/tmp$ cat /tmp/ccayquSO.out
// /usr/libexec/gcc/i386-redhat-linux/4.0.0/cc1 -quiet bad.c -quiet -dumpbase bad.c -auxbase bad -O2 -o - -frandom-seed=0
# 1 "bad.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "bad.c"
struct inner {
   char item;
struct outer {
   struct inner member;

struct inner * const ptr = (&((struct outer * const) (0x40000000))->member);

   ptr->item = 0;
petr-lx:/tmp$ /usr/bin/gcc -v
Using built-in specs.
Target: i386-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-languages=c,c++,objc,java,f95,ada --enable-java-awt=gtk --with-java-home=/usr/lib/jvm/java-1.4.2-gcj- --host=i386-redhat-linux
Thread model: posix
gcc version 4.0.0 20050512 (Red Hat 4.0.0-5)

Actual Results:  gcc crashes with ICE as shown above.

Expected Results:  gcc producing correct code - like what happens without using '-O2'.

Additional info:

Comment 1 Jakub Jelinek 2005-05-17 07:44:02 UTC
Should be fixed in gcc-4.0.0-6.

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