GCC-generated code slower than Solaris-generated code ive vs ive1
| Bugzilla Link | 288 |
| Created on | Aug 26, 2006 22:54 |
| Resolution | DUPLICATE |
| Resolved on | Oct 03, 2006 21:19 |
| Version | svn |
| OS | Linux |
| Architecture | PC |
Extended Description
I thought we had a bug report on this, but I don't see it, so here's another, with some more info: sac2c -O3 buildv.sac runs about 15% slower under GCC than sac2c -O3 -ive 1 buildv.sac Under Solaris, they're about the same, or perhaps the ive1 code is a tad slower. With histop.sac, where ive 1 is much slower than ive, the relative speed of ive1/ive is about 4.2 on asterix running SUN C, \ and about 3.5 on my AMD Linux box w/gcc. I don't think we can do much about this, but it's noteworthy.
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