While this regression aligns with the IGC update, it’s worth exploring
whether the issue stems from the switch to the distro-provided Khronos
SPIR-V translator.

Since the _Z37__spirv_ImageSampleExplicitLod_Ruint4 symbol relates to
SPIR-V image sampling logic, there’s a possibility that:

The Khronos translator behaves differently than IGC’s previous internal 
translator.
A mismatch between IGC and the external translator version may be responsible.

To confirm, could we:

Test the .spv file directly with ocloc to isolate whether the translator is the 
source of failure?
Verify the Khronos translator version used in both IGC builds?
Attempt building IGC without the 
-DIGC_OPTION__USE_KHRONOS_SPIRV_TRANSLATOR_IN_SC=1 flag to determine if the 
issue is tied to the translator switch rather than core IGC behavior?

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https://bugs.launchpad.net/bugs/2101784

Title:
  OpenCL regression due to missing spirv function

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