[Bug c/47538] GNU Scientific Library miscompiled by gcc 4.6

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47538

--- Comment #5 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-01-30 03:10:37 UTC ---
Interestingly adding all of the options enabled at -O1 to -O0...

-O0 -fcombine-stack-adjustments -fcompare-elim -fcprop-registers -fdefer-pop
-fforward-propagate -fguess-branch-probability -fif-conversion -fif-conversion2
-fipa-profile  -fipa-pure-const -fipa-reference  -fmerge-constants
-fsplit-wide-types  -ftree-bit-ccp -ftree-ccp  -ftree-ch  -ftree-copy-prop
-ftree-copyrename -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-fre
-ftree-sink -ftree-sra -ftree-ter 

doesn't trigger the miscompilation.