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C/C++ and Fortran Compilers

Showing 51 of 8213

xlc listing files for inline functions incorrect

Found a surprising limitation with xlc listing files for inline functions that are in .h files. The listing for such functions in the PDEF section has a line number like 691 | which doesn't reflect the source line number at the top of that .lst fi...
about 11 years ago in C/C++ and Fortran Compilers / C/C++ 4 Not under consideration

Add support for function inlining at OPT(0) [Metal C]

The METAL option of the xlc compiler does not support selectively inlining functions without optimizing the rest of the code We would like to be able to use a compiler attribute (such as "__always_inline__" or "_inline") to force inlining of certa...
over 3 years ago in C/C++ and Fortran Compilers / C/C++ 2 Not under consideration

Raise a severe error if an unknown instruction is generated

If the Compiler/Optimizer generates an invalid unknown instruction (UNKWN), it have to raise a Severe Error. The assembly list shows unknown ?UNKWN? instructions: 000027 | ALRK r8,r7,r9 000027 | UNKWN r15,r3 000027 | UNKWN r8,r6 000027 | C r0,s.uw...
almost 8 years ago in C/C++ and Fortran Compilers / C/C++ 7 Not under consideration

XL Fortran Bogus Error on Assumed Shape Dummy Argument of BIND(C) Procedure

The XL Fortran compiler gives a bogus error message for the below valid Fortran program. The restriction that presumably generates this error message was replaced in Fortran 2018 standard (sec 18.3.6 point 5). Furthermore, the XL compiler provides...
about 4 years ago in C/C++ and Fortran Compilers / Fortran 1 Future consideration

XL C/C++ for z/OS Compiler Features

We'd like to move to using the newer Clang-based XL C/C++ compiler, but we need some features that are not present in the newer product, namely: AMODE31 supportEBCDIC supportHex float support
about 4 years ago in C/C++ and Fortran Compilers / C/C++ 2 Future consideration

The C++ interface for demangling new cxxabi names(generated by xlclang 16.1) are not implemented.

The C++ interface for demangling new cxxabi names(generated by xlclang 16.1) are not implemented. The C++ interface could only demangle old C++ names generated by xlC.
about 4 years ago in C/C++ and Fortran Compilers / C/C++ 1 Future consideration

#pragma report should be extended to C

It is very frustrating that this pragma is not available in C, but only in C++!
almost 9 years ago in C/C++ and Fortran Compilers / C/C++ 4 Not under consideration

Perform optimizations based on __attribute__((__malloc__))

Currently, __attribute__((__malloc__)) does not work as documented in the compiler docs. The documentation infers that the compiler performs certain optimizations when using __malloc__ attribute. However, it appears that the compiler simply tolera...
almost 9 years ago in C/C++ and Fortran Compilers / C/C++ 4 Not under consideration

Issue with Occurs clause Variables

We are migrating Micro focus COBOL programs to IBM COBOL for my client(shop direct). We see some initialization errors coming from mx20f program while compiling with IBM COBOL compiler. Initialization is not possible on occurs clause variables in ...
over 4 years ago in C/C++ and Fortran Compilers / C/C++ 4 Not under consideration

Using CPACF with HW built-In instructions

ISV likes to use HW Crypto support of CPACF (see Principles of Operation) in their applications running on z/OS. As of requiremts of their architecture and as of performance reasons, they do not use ICSF. So they have to use the CPACF instructions...
over 9 years ago in C/C++ and Fortran Compilers / C/C++ 7 Not under consideration

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