On 08/18/2014 03:11 PM, Hong Xu wrote:
Hi everyone,
I have founded a very interesting problem: if I compile the gsl library
with the CFLAGS of '-O2 -march=x86-64' or '-march=core2' (or one of
sandybridge ivybridge haswell), all tests can pass. However, if I
compile with CFLAGS='-O2 -march=[any of core2 sandybridge ivybridge
haswell]', the tests won't pass. The file specfunc/testsuite.log is
pasted in this link: http://pastebin.com/hcNhHz3b
This would limit the usage of the advantage of newer instructions, and
potentially there may be a bug. Would anyone look into this?
Thanks!
Hong
Could this be a gcc problem? A quick google search shows some gcc
versions have bugs with these architectures
