GCC alternative for Linux supporting OpenMP and 128-bit integers with +, -, *, /, and %

Question

I have a C code that uses OpenMP and 128-bit integers. For the 128-bit integers, I'm using the __int128_t and __uint128_t extensions provided by GCC. I'm looking for any other compiler that can also compile this kind of code.

Clang supports __uint128_t, but not OpenMP. ICC supports OpenMP, but not 128-bit integers (at least not ones that you can use built-in operators like +, -, *, /, and % with). The Portland Group C Compiler doesn't natively support 128-bit arithmetic.

Just to be clear, I'm looking for 128-bit integers analogous to __int128_t that work as drop-in replacements for "normal" integers. Is there any compiler for Linux besides GCC that supports OpenMP and 128-bit integers, with the built-in operators +, -, *, /, and %?

Why would you like to change compilers? – Jens Gustedt May 07 '13 at 16:57 — Jens Gustedt, May 07 '13 at 16:57
@Jens In order to double-check my calculations. – Douglas B. Staple May 07 '13 at 16:58 — Douglas B. Staple, May 07 '13 at 16:58

score 2 · Accepted Answer · answered Mar 04 '15 at 14:05

2

ICC didn't support __int128_t with version 12 (when this question was posted), but supported was added with versions 13 onwards, see: 128-bit integers supporting +, -, *, /, and % in the Intel C Compiler?

answered Mar 04 '15 at 14:05

Douglas B. Staple

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GCC alternative for Linux supporting OpenMP and 128-bit integers with +, -, *, /, and %

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