[Bug target/49468] SH Target: inefficient integer abs code

[kkojima at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49468

Kazumoto Kojima <kkojima at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement

--- Comment #3 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2011-06-22 22:37:28 UTC ---
On sh4-unknown-linux-gnu, this patch causes two new failures on
libstdc++ testsuite

FAIL: 27_io/basic_ostream/inserters_arithmetic/char/7.cc execution test
FAIL: 27_io/basic_ostream/inserters_arithmetic/wchar_t/7.cc execution test

I can't find any differences between generated codes for those
test cases by compilers with/without your patch and the failures
go away if the tests are running with libstdc++ library built
with the unpatched compiler.
So it seems that something in libstdc++ library is miscompiled.
Weired and hard to see what is going on, ATM.