[mlir][opt] Expose MLIR_ENABLE_DEPRECATED_GPU_SER... in mlir-config.h. (

#84006)

This is another follow-up of #83004, which made the same change for
`MLIR_CUDA_CONVERSIONS_ENABLED`. As the previous PR, this PR commit
exposes mentioned CMake variable through `mlir-config.h` and uses the
macro that is introduced with the same name. This replaces the macro
`MLIR_ENABLE_DEPRECATED_GPU_SERIALIZATION`, which the CMake files
previously defined manually.

mlir/include/mlir/Config/mlir-config.h.cmake

@@ -13,6 +13,9 @@
 #ifndef MLIR_CONFIG_H
 #define MLIR_CONFIG_H
 
+/* If set, enable deprecated serialization passes. */
+#cmakedefine01 MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE
+
 /* Enable expensive checks to detect invalid pattern API usage. Failed checks
    manifest as fatal errors or invalid memory accesses (e.g., accessing
    deallocated memory) that cause a crash. Running with ASAN is recommended for

mlir/tools/mlir-opt/CMakeLists.txt

@@ -106,11 +106,3 @@ llvm_update_compile_flags(mlir-opt)
 
 mlir_check_all_link_libraries(mlir-opt)
 export_executable_symbols_for_plugins(mlir-opt)
-
-if(MLIR_ENABLE_DEPRECATED_GPU_SERIALIZATION)
-  # Enable deprecated serialization passes.
-  target_compile_definitions(mlir-opt
-    PRIVATE
-    MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE=1
-  )
-endif()

mlir/tools/mlir-opt/mlir-opt.cpp

@@ -10,6 +10,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "mlir/Config/mlir-config.h"
 #include "mlir/IR/AsmState.h"
 #include "mlir/IR/Dialect.h"
 #include "mlir/IR/MLIRContext.h"
@@ -277,7 +278,7 @@ void registerTestPasses() {
 
 int main(int argc, char **argv) {
   registerAllPasses();
-#if MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE == 1
+#if MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE
   registerGpuSerializeToCubinPass();
   registerGpuSerializeToHsacoPass();
 #endif

utils/bazel/llvm-project-overlay/mlir/BUILD.bazel

@@ -32,6 +32,7 @@ expand_template(
     name = "mlir_config_h_gen",
     out = "include/mlir/Config/mlir-config.h",
     substitutions = {
+        "#cmakedefine01 MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE": "#define MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE 0",
         "#cmakedefine01 MLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS": "#define MLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS 0",
         "#cmakedefine MLIR_GREEDY_REWRITE_RANDOMIZER_SEED ${MLIR_GREEDY_REWRITE_RANDOMIZER_SEED}": "/* #undef MLIR_GREEDY_REWRITE_RANDOMIZER_SEED */",
         "#cmakedefine01 MLIR_ENABLE_PDL_IN_PATTERNMATCH": "#define MLIR_ENABLE_PDL_IN_PATTERNMATCH 1",
@@ -9172,6 +9173,7 @@ cc_binary(
         ":SCFToGPU",
         ":Support",
         ":Transforms",
+        ":config",
         "//llvm:AllTargetsCodeGens",
         "//llvm:Support",
         "//mlir/test:TestAffine",