Ninja: Restore cmcldeps command-line ordering

Restore the ordering before the refactoring in commit 0f20ba5b68
(Ninja: Swift: Extract helpers and reorder module flags, 2026-04-10,
v4.4.0-rc1~273^2~1) to ensure the correct precedence with launchers.
Add regression tests.

Fixes: #27931, #27934

Source/cmNinjaTargetGenerator.cxx

@@ -725,6 +725,7 @@ cmList ExpandRuleCommands(std::string const& command,
                           cmRulePlaceholderExpander::RuleVariables const& vars,
                           cmMakefile const* mf, std::string const& lang,
                           std::string const& launcher,
+                          std::string const& cldeps,
                           cmLocalGenerator* localGenerator,
                           cmRulePlaceholderExpander* rulePlaceholderExpander)
 {
@@ -735,6 +736,9 @@ cmList ExpandRuleCommands(std::string const& command,
     commands.front().insert(0, "${CODE_CHECK}");
     commands.front().insert(0, "${LAUNCHER}");
   }
+  if (!commands.empty()) {
+    commands.front().insert(0, cldeps);
+  }
   if (!extraCommands.empty()) {
     commands.append(extraCommands);
   }
@@ -1038,13 +1042,9 @@ void cmNinjaTargetGenerator::WriteCompileRule(std::string const& lang,
   std::string const cmdVar = this->GetCompileTemplateVar(lang);
   std::string const& compileCmd = mf->GetRequiredDefinition(cmdVar);
   cmList compileCmds = ExpandRuleCommands(compileCmd, vars, mf, lang, launcher,
-                                          this->GetLocalGenerator(),
+                                          cldeps, this->GetLocalGenerator(),
                                           rulePlaceholderExpander.get());
 
-  if (!compileCmds.empty()) {
-    compileCmds.front().insert(0, cldeps);
-  }
-
   rule.Command =
     this->GetLocalGenerator()->BuildCommandLine(compileCmds, config, config);
 
@@ -1076,8 +1076,8 @@ void cmNinjaTargetGenerator::WriteCompileRule(std::string const& lang,
       emitModRule.Restat = "1";
 
       cmList emitModCmds = ExpandRuleCommands(
-        *emitModCmdVal, emVars, mf, lang, launcher, this->GetLocalGenerator(),
-        rulePlaceholderExpander.get());
+        *emitModCmdVal, emVars, mf, lang, launcher, cldeps,
+        this->GetLocalGenerator(), rulePlaceholderExpander.get());
       emitModRule.Command = this->GetLocalGenerator()->BuildCommandLine(
         emitModCmds, config, config);
       emitModRule.Comment = "Rule for emitting Swift .swiftmodule files.";

Tests/RunCMake/CompilerLauncher/C-launch-Build-check.cmake

@@ -0,0 +1,21 @@
+if(RunCMake_GENERATOR STREQUAL "Ninja")
+  set(rules_ninja "${RunCMake_TEST_BINARY_DIR}/CMakeFiles/rules.ninja")
+  set(build_ninja "${RunCMake_TEST_BINARY_DIR}/build.ninja")
+
+  file(READ "${rules_ninja}" ninja_content)
+  file(READ "${build_ninja}" build_ninja_content)
+
+  if(NOT ninja_content MATCHES "command = \"[^\"]*ctest(\.exe)?\" --launch")
+    set(RunCMake_TEST_FAILED
+      "Expected compile command to use ctest --launch: ${ninja_content}"
+    )
+    return()
+  endif()
+
+  if(NOT build_ninja_content MATCHES "LAUNCHER = [^\n]*USED_LAUNCHER=1")
+    set(RunCMake_TEST_FAILED
+      "Expected compile command to include the compiler launcher"
+    )
+    return()
+  endif()
+endif()

Tests/RunCMake/Instrumentation/RunCMakeTest.cmake

@@ -255,6 +255,9 @@ instrument(no-query
   BUILD INSTALL TEST
   CHECK_SCRIPT check-data-dir.cmake
 )
+if(RunCMake_GENERATOR STREQUAL "Ninja")
+  set(CHECK_NINJA_INSTRUMENT_ORDER 1)
+endif()
 instrument(disabled-test
   BUILD TEST DISABLE_TEST
   CHECK_SCRIPT check-data-dir.cmake
@@ -267,6 +270,7 @@ instrument(both-query
   BUILD INSTALL TEST STATIC_QUERY DYNAMIC_QUERY CAPTURE_OUTPUT_QUERY
   CHECK_SCRIPT check-data-dir.cmake
 )
+unset(CHECK_NINJA_INSTRUMENT_ORDER)
 
 # Test cmake_instrumentation command
 instrument(cmake-command

Tests/RunCMake/Instrumentation/check-data-dir.cmake

@@ -240,6 +240,14 @@ if (ARGS_BUILD AND NOT EXISTS ${RunCMake_TEST_BINARY_DIR}/shell_redirect.out)
   add_error("custom command with shell redirection did not run")
 endif()
 
+if (CHECK_NINJA_INSTRUMENT_ORDER)
+  set(rules_ninja "${RunCMake_TEST_BINARY_DIR}/CMakeFiles/rules.ninja")
+  file(READ "${rules_ninja}" ninja_content)
+  if (NOT ninja_content MATCHES "command = \"[^\"]*ctest(\.exe)?\" --instrument")
+    add_error("Expected compile command to start with ctest --instrument")
+  endif()
+endif()
+
 # Look for build snippet, which may not appear immediately
 if (ARGS_BUILD_MAKE_PROGRAM)
   set(NUM_TRIES 30)