Forum topic

omp_get_num_procs() doesn't returns all processor

Hi, I have an application in c++ that is using Qt libraries.

Authored by Leonardo H. Last updated on 03/29/2017 - 22:58

Step 1. Select Your OS from Intel® Quark™ Microcontroller Developer Kit D2000 – Getting Started for Linux*

  Windows* (64bit: Versions 7, 8.1, and 10)

Last updated on 09/28/2016 - 14:05
Forum topic

__builtin_clrsbl undefined

__builtin_clrsb and __builtin_clrsbll exist, but __builtin_clrsbl seems to be missing.  Quick test:

Authored by Evan N. Last updated on 03/29/2017 - 22:54
Forum topic

internal error: 010101_14277


Attached is a (preprocessed) source file that triggers the error.

Authored by Matthias H. Last updated on 03/29/2017 - 23:06
Forum topic

Issue with O2/O3 optimisation using Intel compiler 2017 update 2


Authored by Arthur P. Last updated on 03/29/2017 - 23:07
Forum topic

compatibility with GCC 5.x and later built-in functions

GCC 5.x and later support built-in functions for overflow checking [1]  that are unsupported by Intel C/C++ in versions including the recently released 2017.0.2.174 / 20170213.

Authored by William S. Last updated on 03/29/2017 - 22:51
Forum topic

Calling convention (codegen) bug when returning packed struct

There seems to be a bug related to a wrong assumption of calling convention of a function returning a packed struct. The generated function's code writes the full 5-byte struct to the RAX register but the calling code tries to pass a return address through the RCX register and then reads from the passed address on the stack (while overwriting the real result in RAX). When the returned struct...

Authored by Andrey Glebov Last updated on 03/29/2017 - 23:08
Forum topic

Intel C++ compiler for academic non-commercial use


Authored by José Luis G. Last updated on 03/29/2017 - 23:10
Forum topic

Apparent IPO compiler bug

I just encountered a very strange compiler (or linker?) bug, thought I should report it here. My description here is what I guess is happening... This is in icl Build 20150121

Authored by Hans v. Last updated on 03/29/2017 - 22:47
For more complete information about compiler optimizations, see our Optimization Notice.