Merge pull request #10612 from hzeller/feature-20260608-iwyu-constant-fold

IYWU: include necessary header for constant_fold()

Author: maliberty

src/syn/BUILD

@@ -20,7 +20,6 @@ cc_library(
         "src/flow/combinational_mapper_npn.cc",
         "src/flow/combinational_mapper_npn.h",
         "src/flow/constant_fold.cc",
-        "src/flow/constant_fold.h",
         "src/flow/export.cc",
         "src/flow/export.h",
         "src/flow/import.cc",
@@ -33,6 +32,7 @@ cc_library(
     ],
     hdrs = [
         "include/syn/synthesis.h",
+        "src/flow/constant_fold.h",
     ],
     includes = [
         "include",

src/syn/src/flow/CMakeLists.txt

@@ -15,7 +15,7 @@ add_library(syn_flow
 )
 
 set(_syn_flow_stage ${CMAKE_CURRENT_BINARY_DIR}/include/flow)
-foreach(_h combinational_mapper_npn.h export.h import.h opt_gatefusion.h)
+foreach(_h combinational_mapper_npn.h constant_fold.h export.h import.h opt_gatefusion.h)
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${_h} ${_syn_flow_stage}/${_h} COPYONLY)
 endforeach()
 

src/syn/test/opt_test.cc

@@ -4,6 +4,7 @@
 #include <memory>
 #include <sstream>
 
+#include "flow/constant_fold.h"
 #include "gtest/gtest.h"
 #include "syn/ir/Bundle.h"
 #include "syn/ir/Const.h"
@@ -24,8 +25,6 @@ int main(int argc, char** argv)
 
 namespace syn {
 
-void constantFold(Graph& g);
-
 TEST(OptTest, AndZero)
 {
   Graph g;