Fixes https://github.com/davidgiven/ack/issues/188
One call to n_coerc() omits the 6th and last argument. This worked in
traditional K&R C, but stops working if we declare n_coerc() with a
prototype of all 6 parameters.
Change the last parameter to a pointer. Declare n_coerc() with
prototype, so it now requires all 6 arguments. Pass NULL when have no
iocc_t. This NULL exists only to satisfy the prototype; n_coerc()
will not use this NULL.
A different fix would declare n_coerc() with 5 parameters and `...`,
then use <stdarg.h> to read the 6th argument when it exists.
In util/ncgg, add two more errors for tables using reglap:
- "Two sizes of reg_float can't be same size"
- "Missing reg_float of size %d to contain %s"
In mach/proto/ncg, rename macro isregvar_size() to PICK_REGVAR(), so
the macro doesn't look like a function. This macro sometimes doesn't
evaluate its second argument.
In mach/powerpc/ncg/mach.c, change type of lfs_set to uint32_t, and
change the left shifts from 1U<<regno to (uint32_t)1<<regno, because
1U would be too small for machines with 16-bit int.
If the ncg table uses reglap, then regvar($1, reg_float) would have
two sizes of registers. An error from ncgg would happen if regvar()
was in a token that allows only one size. Now one can pick a size
with regvar_w() for word size or regvar_d() for double-word size.
Add regvar_d and regvar_w as keywords in ncgg. Modify EX_REGVAR to
include the register size. In ncg, add some checks for the register
size. In tables without reglap, regvar() works as before, and ncg
ignores the register size in EX_REGVAR.
