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Add chipStar (SPIR-V) support to the HIP backend #809

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Add chipStar (SPIR-V) support to the HIP backend #809

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b40c388
cmake: add chipStar/SPIRV platform support to FindHIP
pvelesko Apr 29, 2026
29cc3be
hip: skip arch flag on SPIR-V (chipStar)
pvelesko Oct 29, 2026
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4 changes: 4 additions & 0 deletions cmake/FindHIP.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,10 @@ if(UNIX AND NOT APPLE AND NOT CYGWIN)
set(HIP_RUNTIME_DEFINE "__HIP_PLATFORM_AMD__")
set(HIP_PLATFORM "hip-clang")
endif()
elseif(${HIP_PLATFORM} STREQUAL "spirv")
set(HIP_INCLUDE_DIRS "${HIP_ROOT_DIR}/include")
set(HIP_LIBRARIES "${HIP_ROOT_DIR}/lib/libCHIP.so")
set(HIP_RUNTIME_DEFINE "__HIP_PLATFORM_SPIRV__")
elseif(${HIP_PLATFORM} STREQUAL "nvidia")
find_package(CUDA)

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3 changes: 3 additions & 0 deletions src/occa/internal/modes/hip/device.cpp
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Expand Up @@ -211,6 +211,9 @@ namespace occa {
}

void device::setArchCompilerFlags(occa::json &kernelProps) {
#if defined(__HIP_PLATFORM_SPIRV__)
return; // SPIR-V is architecture-agnostic; no arch flag
#endif
const std::string hipccCompilerFlags = (
kernelProps.get<std::string>("hipcc_compiler_flags")
);
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