| 1 |
Frank Peters <frank.peters@×××××××.net> skribis: |
| 2 |
> A few days ago I posted about a possible problem with a floating |
| 3 |
> point test called the UCBTEST. After examining the source code |
| 4 |
> of this test, I see violations of aliasing rules throughout. |
| 5 |
> It's hard to efficiently manipulate variables without them. |
| 6 |
|
| 7 |
C is essentially a glorified assembly language for PDP-11, designed |
| 8 |
for bit-twiddling, which the original K&R book encouraged, and which |
| 9 |
this code is doing. So all is well, from my point of view. :) Fancy |
| 10 |
optimizations are not to be trusted on assembly code; never be afraid |
| 11 |
to turn them off. You probably don’t need them, anyway. :) |
Archives