[all-commits] [llvm/llvm-project] 4f403e: [SPIR-V] Ensure that OpExtInst instructions genera...

[Vyacheslav Levytskyy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4f403e88f260cd1df3633fbcbe8fa8d1c8e0a745
      https://github.com/llvm/llvm-project/commit/4f403e88f260cd1df3633fbcbe8fa8d1c8e0a745
  Author: Vyacheslav Levytskyy <vyacheslav.levytskyy at intel.com>
  Date:   2024-09-03 (Tue, 03 Sep 2024)

  Changed paths:
    M llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp
    A llvm/test/CodeGen/SPIRV/debug-info/no-misplaced-opextinst.ll

  Log Message:
  -----------
  [SPIR-V] Ensure that OpExtInst instructions generated by NonSemantic_Shader_DebugInfo_100 are not mixed up with other OpExtInst instructions (#107007)

This PR is to ensure that OpExtInst instructions generated by
NonSemantic_Shader_DebugInfo_100 are not mixed up with other OpExtInst
instructions.

Original implementation
(https://github.com/llvm/llvm-project/pull/97558) has introduced an
issue by moving OpExtInst instruction with the 3rd operand equal to
DebugSource (value 35) or DebugCompilationUnit (value 1) even if
OpExtInst is not generated by NonSemantic_Shader_DebugInfo_100
implementation code.

The reproducer is attached as a new test case. The code of the test case
reproduces the issue, because "lgamma" has the same code (35) inside
OpenCL_std as DebugSource inside NonSemantic_Shader_DebugInfo_100.



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