I noticed this while developing/debugging the source file, the code is in a
very rough and buggy state but the behavior I'm getting seems to be tied to a
properly formed printf().
$ gcc -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-mpfr --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)
File will be attached. Sample output:
WITH THE PRINTF (note the "Most common" lines):
Current: 1
Most common: 1 9 :: 1
Current: 1
Current: 19
Most common: 4 15 :: 19
Current: 1
Current: 1
Current: 1
Current: 1
Current: 20
Most common: c 1c :: 20
Current: 1
Current: 1
Current: 1
Current: 1
Current: 1
Current: 68
Most common: 11 11 :: 68
Current: 1
Current: 1
Current: 77
Most common: 11 19 :: 77
Current: 5
Current: 1
Current: 4
Current: 1
Current: 4
Current: 11
Current: 5
Current: 7
Current: 2
Current: 6
Current: 1
Current: 3
Current: 16
Current: 7
Current: 1
Current: 19
Current: 4
Current: 8
Current: 6
Current: 8
Current: 9
Current: 8
[output trimmed...]
Most common: 11 19 :: 77
0 0 :: 516
Key size: 134513244
WITHOUT THE PRINTF ("Current: %i\n" lines no longer printing):
Most common: 0 0 :: 0
0 0 :: 516
Key size: 134513244
--
Summary: gcc miscompilation of some stuff
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nigelenki at comcast dot net
GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29595
