[all-commits] [llvm/llvm-project] 06aae4: [HLSL][SPIRV] Restore support for -g to generate N...

[Diego Novillo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 06aae40c6dee03741f96c1b09ccc57f7fb110dd1
      https://github.com/llvm/llvm-project/commit/06aae40c6dee03741f96c1b09ccc57f7fb110dd1
  Author: Diego Novillo <dnovillo at nvidia.com>
  Date:   2026-04-01 (Wed, 01 Apr 2026)

  Changed paths:
    M clang/lib/CodeGen/CGDebugInfo.cpp
    A clang/test/CodeGenHLSL/debug/source-language.hlsl
    M llvm/docs/SPIRVUsage.rst
    M llvm/lib/Target/SPIRV/SPIRVEmitNonSemanticDI.cpp
    M llvm/lib/Target/SPIRV/SPIRVTargetMachine.cpp
    M llvm/test/CodeGen/SPIRV/debug-info/debug-compilation-unit.ll
    M llvm/test/CodeGen/SPIRV/debug-info/debug-type-basic.ll
    M llvm/test/CodeGen/SPIRV/debug-info/debug-type-pointer.ll
    A llvm/test/CodeGen/SPIRV/debug-info/hlsl-debug-info-auto-activation.ll
    A llvm/test/CodeGen/SPIRV/debug-info/no-nonsemantic-without-extension.ll
    M llvm/test/CodeGen/SPIRV/hlsl-resources/SampleErrorsDebug.ll
    M llvm/test/CodeGen/SPIRV/llc-pipeline.ll

  Log Message:
  -----------
  [HLSL][SPIRV] Restore support for -g to generate NSDI (#190007)

The original attempt (#187051) produced a regression for
`intel-sycl-gpu` because `SPIRVEmitNonSemanticDI` will now self-activate
whenever `llvm.dbg.cu` is present. This removed the need for the
explicit `--spv-emit-nonsemantic-debug-info` flag.

The pass is now entered unconditionally for all SPIR-V targets, but
`NonSemantic.Shader.DebugInfo.100` requires the
`SPV_KHR_non_semantic_info`. Targets like `spirv64-intel` do not enable
that extension by default. When `checkSatisfiable()` ran on those
targets, it issued a fatal error rather than silently skipping.

Adds an early-out from `emitGlobalDI()`: if
`SPV_KHR_non_semantic_info` is not available for the current target, the
pass returns without emitting anything.



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