On 11/16/2013 04:25 AM, Tim Prince wrote:
Many decisions on compiler defaults still are based on an unscientific choice of benchmarks, with gcc evidently more responsive to input from the community.
I'm also quite convinced that we are hampered by the fact that there is no IPA on alignment in GCC.
I bet that in the average Fortran program, most arrays are suitably aligned (after all, they're either a - by definition - SAVEd array in a module, or an ALLOCATEd array), and code that does this:
CALL AAP(..., A(2), ...) is relatively sparse. -- Toon Moene - e-mail: t...@moene.org - phone: +31 346 214290 Saturnushof 14, 3738 XG Maartensdijk, The Netherlands At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/ Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news