add missing MLIR wrapper stubs for MLIR-disabled builds - #5154
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nkotakal0107 wants to merge 1 commit into
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add missing MLIR wrapper stubs for MLIR-disabled builds#5154nkotakal0107 wants to merge 1 commit into
nkotakal0107 wants to merge 1 commit into
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…ve no undefined symbols The MLIR wrappers are declared unconditionally in gpu/mlir.hpp and called unconditionally from gpu/jit/mlir.cpp, but mlir.cpp's #else (MLIR-off) branch defined only 5 of 9. The missing four (is_module_fusible, adjust_param_shapes, dump_mlir_to_file, dump_mlir_to_mxr) became undefined symbols when MLIR is off, so dlopen(RTLD_NOW) failed and the ORT MIGraphX EP fell back to CPU. Add no-op stubs for the four in the #else branch; is_module_fusible returns false so callers take the non-MLIR path. MLIR-on builds are unaffected (the #else block isn't compiled).
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TedThemistokleous
approved these changes
Aug 19, 2026
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Motivation
When MIGraphX is built with MLIR off, libmigraphx_gpu.so fails to load with an undefined symbol error, so the ONNX Runtime MIGraphX EP can't initialize and falls back to CPU. This makes the "MLIR off" build usable instead of broken.
Technical Details
The MLIR wrappers are declared unconditionally in gpu/mlir.hpp and called unconditionally from gpu/jit/mlir.cpp, but mlir.cpp's #else (MLIR-off) branch defined only 5 of 9. The missing four (is_module_fusible, adjust_param_shapes, dump_mlir_to_file, dump_mlir_to_mxr) became undefined symbols, so dlopen(RTLD_NOW) failed. This adds no-op stubs for them in the #else branch (is_module_fusible returns false → callers take the non-MLIR path). MLIR-on builds are unaffected since the #else block isn't compiled.
so added missing MLIR wrapper stubs for MLIR-disabled builds
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