segmentation fault in clang frontend with -fsanitize=undefined

[fvanderhave]

Hello,

When I attempt to compile the attached C source file with the 2024.1 version of icx, the compiler itself experiences an error (segfault in clang frontend).

/opt/intel/oneapi/compiler/latest/bin/icx --version
Intel(R) oneAPI DPC++/C++ Compiler 2024.1.0 (2024.1.0.20240308)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/intel/oneapi/compiler/2024.1/bin/compiler
Configuration file: /opt/intel/oneapi/compiler/2024.1/bin/compiler/../icx.cfg

The invocation to reproduce the problem:

/opt/intel/oneapi/compiler/latest/bin/icx -Wall -Wextra -fsanitize=undefined
-o icx_sanitize_problem icx_sanitize_problem.c

This compiles and runs without problems when it is compiled with icx without the undefined behavior sanitizer, or when it is compiled with gcc or clang, with or without the sanitizer option.

Best regards,
Frans.

[Alex_Y_Intel]

This issue has been escalated to our engineers and we'll work on it internally and come back with update when we reach the conclusion. 

[Jie_L_Intel · Accepted solution]

This bug is planned to be fixed in next release of Base Toolkit.

[fvanderhave]

Excellent. Thanks.