Internal error: 04010002_1671

[nemequ]

I have some code which generates an ICE when compiled with ICC 2021.2.0 on Linux.  Here is a reduced test case:

typedef char a;
typedef struct {
  a b __attribute__((__vector_size__(16)));
} c;
typedef struct {
  c d[4];
} e;
c f;
e g;
c i(e h) { return f; }
void j() { i(g); }

# icc -o test test.c
test.c(11) (col. 14): internal error: 04010002_1671

compilation aborted for test.c (code 4)

If you want to reproduce using the original code (before it was reduced), it is SIMDe. The code is hiding from ICC behind an ifdef right now, but changing simde/simde-common.h:965 to `#elif 0`, then compiling normally should trigger the issue.

[MRajesh_intel]

Hi,

Thanks for reporting the issue. It was reproducible at our end.

We are working on this internally.

Regards

Rajesh.

[Viet_H_Intel]

I've reported this bug to our Compiler Developer.

Thanks,

[Viet_H_Intel]

Hi,

Not sure if you are aware, but the classic C/C++ compilers will enter “Legacy Product Support” mode signaling the end of regular updates to the classic compiler base, and they will no longer appear in oneAPI toolkits.

Please see the article for more details:

https://www.intel.com/content/www/us/en/developer/articles/technical/adoption-of-llvm-complete-icx.h...

Please migrate your code to icx.

We are going to close this as "won't fix"

Regards,

Viet