New sac2c generates very slow code on 64-bit bice
| Bugzilla Link | 403 |
| Created on | Oct 18, 2007 18:35 |
| Resolution | FIXED |
| Resolved on | Oct 19, 2007 00:51 |
| Version | 1.00beta |
| OS | Linux |
| Architecture | PC |
Extended Description
I compiled apex/unirand/unirand.sac [after fixing use/imports] with sac2c rev 15555, to get 0.408sec user CPU time. After updating to sac2c rev#15631, same code executes in 5.932sec. After changing sac2c/sac2crc LDFLAGS="-static" and recompiling, unirand executes in 5.456CPU seconds. This happens on two 64-bit platforms: SuSE 10.1 AMD Opteron, two-holer, and on an Ubuntu 7.04 Intel 2-holer laptop.
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