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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/46165] [4.3/4.4 Regression] ICE: verify_flow_info failed when casting-out attribute noreturn with -fno-tree-ccp -fno-tree-copy-prop -fno-tree-dce
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46165

--- Comment #7 from Zdenek Sojka <zsojka at seznam dot cz> 2010-11-12 10:25:06 UTC ---
I can reproduce it with 4.4 r166509 as follows:

$ gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-4_4/configure --enable-languages=c,c++,fortran
--enable-checking=yes,rtl,df
--prefix=/mnt/svn/gcc-4_4/binary-166509-fortran-checking-yes-rtl-df/
Thread model: posix
gcc version 4.4.6 20101109 (prerelease) (GCC) 
$ gcc -O -fno-tree-ccp -fno-tree-copy-prop -fno-tree-dce pr46165.c
pr46165.c: In function 'g':
pr46165.c:2: error: control flow in the middle of basic block 2
pr46165.c:2: internal compiler error: verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.