[Bug rtl-optimization/38644] [4.4/4.5/4.6/4.7 Regression] Optimization flag -O1 -fschedule-insns2 causes wrong code

[sebastian.huber@embedded-brains.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38644

--- Comment #58 from Sebastian Huber <sebastian.huber@embedded-brains.de> 2011-10-31 10:45:43 UTC ---
I tested Jiangning Liu's latest patch.  With it GCC 4.6.2 produces valid code
for -march=armv4t, -march=armv5t, -march=armv5te, -march=armv6, and
-march=armv7-m.  GCC 4.6.2 produces valid code for -march-armv7-m also without
the patch, for all other listed options the code is wrong.

Testsuite results:

http://gcc.gnu.org/ml/gcc-testresults/2011-10/msg03523.html