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- UOPT(5) Last changed: 1-28-99
-
-
- NNAAMMEE
- uuoopptt - the ucode optimizer
-
- IIMMPPLLEEMMEENNTTAATTIIOONN
- IRIX systems
-
- DDEESSCCRRIIPPTTIIOONN
- The ucode optimizer, uuoopptt, is a part of the compiling system and is
- always invoked from one of the compiler commands, such as cccc(1) or
- ff7777(1).
-
- uuoopptt has the following options not recognized by the compilers, which
- can be applied with the prefix --WWoo. For example, to prevent loop
- unrolling completely with the C compiler, use cccc --WWoo,,--llooooppuunnrroollll,,00.
- For compiler commands other than cccc or ff7777 see the appropriate man
- page.
-
- The following options are available:
-
- --llooooppuunnrroollll _c_o_u_n_t
- Each loop which uuoopptt can unroll is unrolled _c_o_u_n_t times. Set
- _c_o_u_n_t to 0 to prevent loop unrolling. For example, you may want
- to prevent loop unrolling if you find that unrolled loops are
- slower (possibly due to cache effects) or where code size
- reduction is critical. The default is _c_o_u_n_t = 4.
-
- --uunnrroolllllliimmiitt _l_i_m_i_t
- Each loop which uuoopptt can unroll is unrolled a maximum of _l_i_m_i_t
- times. Defaults to 160.
-
- FFIILLEESS
- /usr/lib/uopt
-
- SSEEEE AALLSSOO
- cccc(1), ff7777(1),
-
- This man page is available only online.
-