i960 Processor Compiler User's Guide
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generates potentially unaligned references when
it seems advantageous to do so. When
mstrict-align is enabled, sequences of
smaller memory references are used instead of
larger ones that might not be correctly aligned.
The default is on for C-series and J-series
processors.
mstrict-ref-def Generate code so that an uninitialized file-scope
variable definition causes space to be allocated in
the
.bss section instead of as a .comm symbol.
This enforces a single unique definition of a
variable.
mtail-call | Generate output that converts (does not
mno-tail-call convert) call instructions immediately followed
by
ret instructions to branches to the call target.
While generating faster code, this option makes
debugging more difficult.
mtail-call is the
default at
O2 or higher.
mwait=
n
Specifies the expected number of wait-states for
the memory being used in the target. This can
make a difference in which optimizations are
cost-effective and in the instruction scheduling
optimization.
n
must be in the range 0.32.
nostdinc (No Standard Header Files)
Do not use standard
header files.
Do not search the standard system directories for header files. Only the
directories specified with
I options (and the current directory, when
appropriate) are searched. Using
nostdinc and I-, you can eliminate all
directories from the search path except those you specify.
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