[mlir] Fix -Wstrict-prototypes warning

These warnings prevent compilation using clang and
-DLLVM_ENABLE_WERROR=On.

Differential revision: https://reviews.llvm.org/D139322

1 files changed, 7 insertions, 6 deletions

diff --git a/mlir/tools/mlir-tblgen/PassCAPIGen.cpp b/mlir/tools/mlir-tblgen/PassCAPIGen.cpp
index 72275e7..9f33a41 100644
--- a/mlir/tools/mlir-tblgen/PassCAPIGen.cpp
+++ b/mlir/tools/mlir-tblgen/PassCAPIGen.cpp
@@ -32,8 +32,8 @@ static llvm::cl::opt<std::string>
 
 const char *const passDecl = R"(
 /* Create {0} Pass. */
-MLIR_CAPI_EXPORTED MlirPass mlirCreate{0}{1}();
-MLIR_CAPI_EXPORTED void mlirRegister{0}{1}();
+MLIR_CAPI_EXPORTED MlirPass mlirCreate{0}{1}(void);
+MLIR_CAPI_EXPORTED void mlirRegister{0}{1}(void);
 
 )";
 
@@ -59,7 +59,8 @@ const char *const fileFooter = R"(
 static bool emitCAPIHeader(const llvm::RecordKeeper &records, raw_ostream &os) {
   os << fileHeader;
   os << "// Registration for the entire group\n";
-  os << "MLIR_CAPI_EXPORTED void mlirRegister" << groupName << "Passes();\n\n";
+  os << "MLIR_CAPI_EXPORTED void mlirRegister" << groupName
+     << "Passes(void);\n\n";
   for (const auto *def : records.getAllDerivedDefinitions("PassBase")) {
     Pass pass(def);
     StringRef defName = pass.getDef()->getName();
@@ -70,10 +71,10 @@ static bool emitCAPIHeader(const llvm::RecordKeeper &records, raw_ostream &os) {
 }
 
 const char *const passCreateDef = R"(
-MlirPass mlirCreate{0}{1}() {
+MlirPass mlirCreate{0}{1}(void) {
   return wrap({2}.release());
 }
-void mlirRegister{0}{1}() {
+void mlirRegister{0}{1}(void) {
   register{1}();
 }
 
@@ -85,7 +86,7 @@ const char *const passGroupRegistrationCode = R"(
 // {0} Group Registration
 //===----------------------------------------------------------------------===//
 
-void mlirRegister{0}Passes() {{
+void mlirRegister{0}Passes(void) {{
   register{0}Passes();
 }
 )";