This release also provides
all of the functional enhancements offered in Enterprise PL/I V3R3,
including the following:
More XML support
The XMLCHAR built-in function will write XML with the
names and values of the elements of a referenced structure to a
buffer and return the number of bytes written. This XML can then
be passed to other applications, including code using the PL/I SAX parser,
which want to consume it.
Improved performance
- The compilation time under OPT(2) will be significantly less
than under Enterprise PL/I V3R2, especially for large programs.
- The compiler now uses the ED and EDMK instructions for inlined
numeric conversions to PICTURE and CHARACTER. This results in faster,
shorter code sequences and also in faster compilations.
- The compiler now generates better code for string comparisons.
This also results in faster, shorter code sequences.
- The compiler now generates shorter, faster code for conversion
from FIXED DECIMAL to PICTURE with trailing overpunch characters.
- The ARCH and TUNE compiler options now accept 5 as a valid
sub-option. Under ARCH(5), the compiler will generate, when appropriate,
some new
z/Architecture instructions such as NILL, NILH, OILL, OILH, LLILL,
and LLILH.
Easier migration
- The new BIFPREC compiler option controls the precision of the
FIXED BIN result returned by various built-in functions and thus
provides for better compatibility with the OS PL/I compiler.
- The new BACKREG compiler option controls which register the
compiler uses as the backchain register and thus allows for easier
mixing of old and new object code.
- The new RESEXP compiler option controls the evaluation of restricted expressions
in code, and thus provides for better compatibility with the OS
PL/I compiler.
- The new BLKOFF compiler option provides for controlling the
way offsets in the compiler's pseudo-assembler listing are calculated.
- The STORAGE compiler option causes the compiler to produce,
as part of the listing, a summary, similar to that produced by the
OS PL/I compiler, of the storage used by each procedure and begin-block.
Improved usability
- The new LAXDEF suboption of the RULES compiler option allows
the use of so-called illegal defining without having the compiler
generate E-level messages.
- The new FLOATINMATH compiler option offers easier control of
the precision with which math functions are evaluated.
- The new MEMINDEX, MEMSEARCH(R) and MEMVERIFY(R) built-in functions provide
the ability to search strings larger than 32K.
- The new ROUTCDE and DESC suboptions of the DISPLAY(WTO) compiler option
offers control of the corresponding elements of the WTO.
- The compiler now stores in each object a short string that
will be in storage even when the associated code runs and that records
all the options used to produce that object. This allows various
tools to produce better diagnostics.
- The compiler now issues messages identifying more of the places
where statements have been merged or deleted.
- The PLIDUMP output now includes a hex dump of user static.
- The PLIDUMP output now includes the options used to compile
each program in the Language Environment traceback.
- The PLIDUMP output now includes more information on PL/I files.
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