Fortran Compiler

[garraleta_fortran]

I have installed two versions of INTEL FORTRAN
a) Intel Parallel Studio XE-2013 in VISUAL STUDIO 2008
b) The new IFX in VISUAL STUDIO 2022
Both work well. But there are subtle differences in debug.

Here is a small example

In 2008 The sequence of instructions is step by step starting on line 7:
7-8-9-10-11-12-13-9-10-11-12-13-14
In te new IFX is:
7-8-9-10-11-12-9-12-13-9-10-11-12-9-12-13

[Steve_Lionel · Accepted solution]

Instruction to line number correlation has always been approximate. The compiler may choose to reorder some operations. Since END DO is not executable, where it shows up in debugging is unpredictable.