diff --git a/tools/buildmgr/cbuildgen/config/AC6.6.16.2.cmake b/tools/buildmgr/cbuildgen/config/AC6.6.16.2.cmake
index 7a5af5f4c..8f82678d4 100644
--- a/tools/buildmgr/cbuildgen/config/AC6.6.16.2.cmake
+++ b/tools/buildmgr/cbuildgen/config/AC6.6.16.2.cmake
@@ -679,6 +679,7 @@ set(CC_CPU "--target=${ARMCLANG_TARGET} ${ARMCLANG_CPU}")
 set(CC_DEFINES ${ASM_DEFINES})
 set(CC_BYTE_ORDER ${ASM_BYTE_ORDER})
 set(CC_FLAGS ${ASM_FLAGS})
+set(CC_LTO "-flto")
 set(_PI "-include ")
 set(_ISYS "-isystem ")
 set(CC_OPTIONS_FLAGS)
@@ -704,6 +705,7 @@ set(CXX_BYTE_ORDER "${CC_BYTE_ORDER}")
 set(CXX_SECURE "${CC_SECURE}")
 set(CXX_BRANCHPROT "${CC_BRANCHPROT}")
 set(CXX_FLAGS "${CC_FLAGS}")
+set(CXX_LTO "${CC_LTO}")
 set(CXX_OPTIONS_FLAGS)
 cbuild_set_options_flags(CXX "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "${LANGUAGE_CXX}" CXX_OPTIONS_FLAGS)
 
@@ -721,6 +723,7 @@ if(SECURE STREQUAL "Secure")
   set(LD_SECURE "--import-cmse-lib-out \"${OUT_DIR}/${CMSE_LIB}\"")
 endif()
 
+set(LD_LTO "--lto")
 set(LD_FLAGS "")
 set(LD_OPTIONS_FLAGS)
 cbuild_set_options_flags(LD "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "" LD_OPTIONS_FLAGS)
diff --git a/tools/buildmgr/cbuildgen/config/CLANG.17.0.1.cmake b/tools/buildmgr/cbuildgen/config/CLANG.17.0.1.cmake
index 712770225..6684f88d5 100644
--- a/tools/buildmgr/cbuildgen/config/CLANG.17.0.1.cmake
+++ b/tools/buildmgr/cbuildgen/config/CLANG.17.0.1.cmake
@@ -388,6 +388,7 @@ set(CC_CPU "${CLANG_CPU}")
 set(CC_DEFINES ${ASM_DEFINES})
 set(CC_BYTE_ORDER ${ASM_BYTE_ORDER})
 set(CC_FLAGS "")
+set(CC_LTO "-flto")
 set(_PI "-include ")
 set(_ISYS "-isystem ")
 set(CC_OPTIONS_FLAGS)
@@ -409,6 +410,7 @@ set(CXX_BYTE_ORDER "${CC_BYTE_ORDER}")
 set(CXX_SECURE "${CC_SECURE}")
 set(CXX_BRANCHPROT "${CC_BRANCHPROT}")
 set(CXX_FLAGS "${CC_FLAGS}")
+set(CXX_LTO "${CC_LTO}")
 set(CXX_OPTIONS_FLAGS)
 cbuild_set_options_flags(CXX "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "${LANGUAGE_CXX}" CXX_OPTIONS_FLAGS)
 
@@ -421,6 +423,7 @@ if(SECURE STREQUAL "Secure")
   set(LD_SECURE "-Wl,--cmse-implib -Wl,--out-implib=\"${OUT_DIR}/${CMSE_LIB}\"")
 endif()
 
+set(LD_LTO "-flto")
 set(LD_FLAGS)
 set(LD_OPTIONS_FLAGS)
 cbuild_set_options_flags(LD "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "" LD_OPTIONS_FLAGS)
diff --git a/tools/buildmgr/cbuildgen/config/CLANG_TI.4.0.1.cmake b/tools/buildmgr/cbuildgen/config/CLANG_TI.4.0.1.cmake
index 7f2b4f0e9..a7bc5d751 100644
--- a/tools/buildmgr/cbuildgen/config/CLANG_TI.4.0.1.cmake
+++ b/tools/buildmgr/cbuildgen/config/CLANG_TI.4.0.1.cmake
@@ -155,6 +155,7 @@ set(CC_CPU "${TIARMCLANG_CPU}")
 set(CC_DEFINES ${ASM_DEFINES})
 set(CC_BYTE_ORDER ${ASM_BYTE_ORDER})
 set(CC_FLAGS "")
+set(CC_LTO "-flto")
 set(_PI "-include ")
 set(_ISYS "-isystem ")
 set(CC_OPTIONS_FLAGS)
@@ -176,6 +177,7 @@ set(CXX_BYTE_ORDER "${CC_BYTE_ORDER}")
 set(CXX_SECURE "${CC_SECURE}")
 set(CXX_BRANCHPROT "${CC_BRANCHPROT}")
 set(CXX_FLAGS "${CC_FLAGS}")
+set(CXX_LTO "${CC_LTO}")
 set(CXX_OPTIONS_FLAGS)
 cbuild_set_options_flags(CXX "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "${LANGUAGE_CXX}" CXX_OPTIONS_FLAGS)
 
@@ -188,6 +190,7 @@ if(SECURE STREQUAL "Secure")
   set(LD_SECURE "-Wl,--import_cmse_lib_out=\"${OUT_DIR}/${CMSE_LIB}\"")
 endif()
 
+set(LD_LTO "-flto")
 set(LD_FLAGS)
 set(LD_OPTIONS_FLAGS)
 cbuild_set_options_flags(LD "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "" LD_OPTIONS_FLAGS)
diff --git a/tools/buildmgr/cbuildgen/config/GCC.10.3.1.cmake b/tools/buildmgr/cbuildgen/config/GCC.10.3.1.cmake
index 6fd98061f..2cba06e62 100644
--- a/tools/buildmgr/cbuildgen/config/GCC.10.3.1.cmake
+++ b/tools/buildmgr/cbuildgen/config/GCC.10.3.1.cmake
@@ -258,6 +258,7 @@ set(CC_CPU "${GNUASM_CPU}")
 set(CC_DEFINES ${ASM_DEFINES})
 set(CC_BYTE_ORDER ${ASM_BYTE_ORDER})
 set(CC_FLAGS)
+set(CC_LTO "-flto")
 set(_PI "-include ")
 set(_ISYS "-isystem ")
 set(CC_OPTIONS_FLAGS)
@@ -285,6 +286,7 @@ set(CXX_BYTE_ORDER "${CC_BYTE_ORDER}")
 set(CXX_SECURE "${CC_SECURE}")
 set(CXX_BRANCHPROT "${CC_BRANCHPROT}")
 set(CXX_FLAGS "${CC_FLAGS}")
+set(CXX_LTO "${CC_LTO}")
 set(CXX_OPTIONS_FLAGS)
 cbuild_set_options_flags(CXX "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "${LANGUAGE_CXX}" CXX_OPTIONS_FLAGS)
 
@@ -304,6 +306,7 @@ if(SECURE STREQUAL "Secure")
   set(LD_SECURE "-Wl,--cmse-implib -Wl,--out-implib=\"${OUT_DIR}/${CMSE_LIB}\"")
 endif()
 
+set(LD_LTO "-flto")
 set(LD_FLAGS)
 set(LD_OPTIONS_FLAGS)
 cbuild_set_options_flags(LD "${OPTIMIZE}" "${DEBUG}" "${WARNINGS}" "" LD_OPTIONS_FLAGS)
diff --git a/tools/projmgr/include/ProjMgrParser.h b/tools/projmgr/include/ProjMgrParser.h
index fc6b2a4fc..8f710c60f 100644
--- a/tools/projmgr/include/ProjMgrParser.h
+++ b/tools/projmgr/include/ProjMgrParser.h
@@ -199,6 +199,7 @@ struct BuildType {
   std::string warnings;
   std::string languageC;
   std::string languageCpp;
+  bool lto = false;
   std::vector<std::string> defines;
   std::vector<std::string> definesAsm;
   std::vector<std::string> undefines;
diff --git a/tools/projmgr/include/ProjMgrYamlParser.h b/tools/projmgr/include/ProjMgrYamlParser.h
index 75e134f6f..243294cd1 100644
--- a/tools/projmgr/include/ProjMgrYamlParser.h
+++ b/tools/projmgr/include/ProjMgrYamlParser.h
@@ -146,6 +146,7 @@ static constexpr const char* YAML_LICENSE = "license";
 static constexpr const char* YAML_LICENSES = "licenses";
 static constexpr const char* YAML_LICENSE_AGREEMENT = "license-agreement";
 static constexpr const char* YAML_LINKER = "linker";
+static constexpr const char* YAML_LINK_TIME_OPTIMIZE = "link-time-optimize";
 static constexpr const char* YAML_MAP = "map";
 static constexpr const char* YAML_MASK = "mask";
 static constexpr const char* YAML_MEMORY = "memory";
diff --git a/tools/projmgr/schemas/common.schema.json b/tools/projmgr/schemas/common.schema.json
index 5067ec930..a306148b6 100644
--- a/tools/projmgr/schemas/common.schema.json
+++ b/tools/projmgr/schemas/common.schema.json
@@ -235,6 +235,11 @@
       "enum": [ "size", "speed", "balanced", "none", "debug" ],
       "description": "Generic optimization levels for code generation (size, speed, balanced, none, debug)."
     },
+    "LinkTimeOptimizeType": {
+      "title": "link-time-optimize:",
+      "type": ["null", "boolean"],
+      "description": "Enable Link Time Optimization (LTO)"
+    },
     "DebugType": {
       "title": "debug:\nDocumentation: https://open-cmsis-pack.github.io/cmsis-toolbox/YML-Input-Format/#debug",
       "enum": [ "on", "off" ],
@@ -577,6 +582,7 @@
         "device":       { "$ref": "#/definitions/DeviceType" },
         "language-C":   { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":         { "$ref": "#/definitions/MiscTypes" },
         "memory":       { "$ref": "#/definitions/MemoryType" },
         "optimize":     { "$ref": "#/definitions/OptimizeType" },
@@ -615,6 +621,7 @@
         "del-path":     { "$ref": "#/definitions/DelpathsType" },
         "language-C":   { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":         { "$ref": "#/definitions/MiscTypes" },
         "optimize":     { "$ref": "#/definitions/OptimizeType" },
         "processor":    { "$ref": "#/definitions/ProcessorType" },
@@ -745,6 +752,7 @@
         "groups": { "$ref": "#/definitions/GroupsType" },
         "language-C": { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc": { "$ref": "#/definitions/MiscTypes" },
         "not-for-context": { "$ref": "#/definitions/NotForContext" },
         "optimize": { "$ref": "#/definitions/OptimizeType" },
@@ -781,6 +789,7 @@
         "warnings":        { "$ref": "#/definitions/WarningsType" },
         "language-C":      { "$ref": "#/definitions/LanguageCType" },
         "language-CPP":    { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "define":          { "$ref": "#/definitions/DefinesType" },
         "define-asm":      { "$ref": "#/definitions/DefinesAsmType" },
         "undefine":        { "$ref": "#/definitions/UndefinesType" },
@@ -849,6 +858,7 @@
         "language":        { "$ref": "#/definitions/FileLanguageType" },
         "language-C":      { "$ref": "#/definitions/LanguageCType" },
         "language-CPP":    { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":            { "$ref": "#/definitions/MiscTypes" },
         "not-for-context": { "$ref": "#/definitions/NotForContext" },
         "optimize":        { "$ref": "#/definitions/OptimizeType" },
@@ -968,6 +978,7 @@
         "instances":    { "$ref": "#/definitions/InstancesType" },
         "language-C":   { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":         { "$ref": "#/definitions/MiscTypes" },
         "not-for-context": { "$ref": "#/definitions/NotForContext" },
         "optimize":     { "$ref": "#/definitions/OptimizeType" },
@@ -1127,6 +1138,7 @@
         "generators":      { "$ref": "#/definitions/GeneratorsOutputType" },
         "language-C":      { "$ref": "#/definitions/LanguageCType" },
         "language-CPP":    { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":            { "$ref": "#/definitions/MiscTypes" },
         "optimize":        { "$ref": "#/definitions/OptimizeType" },
         "output-dirs":     { "$ref": "#/definitions/OutputDirectoriesType" },
@@ -1173,6 +1185,7 @@
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
         "layers":       { "$ref": "#/definitions/LayersType" },
         "linker":       { "$ref": "#/definitions/LinkersType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":         { "$ref": "#/definitions/MiscTypes" },
         "optimize":     { "$ref": "#/definitions/OptimizeType" },
         "output":       { "$ref": "#/definitions/OutputType" },
@@ -1373,6 +1386,7 @@
         "warnings":          { "$ref": "#/definitions/WarningsType" },
         "language-C":        { "$ref": "#/definitions/LanguageCType" },
         "language-CPP":      { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":              { "$ref": "#/definitions/MiscType" },
         "define":            { "$ref": "#/definitions/BuildDefinesType" },
         "define-asm":        { "$ref": "#/definitions/BuildDefinesType" },
@@ -1455,6 +1469,7 @@
         "language-C":   { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
         "linker":       { "$ref": "#/definitions/LinkersType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":         { "$ref": "#/definitions/MiscTypes" },
         "packs":        { "$ref": "#/definitions/PacksType" },
         "processor":    { "$ref": "#/definitions/ProcessorType" },
@@ -1629,6 +1644,7 @@
         "warnings":     { "$ref": "#/definitions/WarningsType" },
         "language-C":   { "$ref": "#/definitions/LanguageCType" },
         "language-CPP": { "$ref": "#/definitions/LanguageCppType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "define":       { "$ref": "#/definitions/DefinesType" },
         "define-asm":   { "$ref": "#/definitions/DefinesType" },
         "undefine":     { "$ref": "#/definitions/UndefinesType" },
@@ -1697,6 +1713,7 @@
         "language-C":      { "$ref": "#/definitions/LanguageCType" },
         "language-CPP":    { "$ref": "#/definitions/LanguageCppType" },
         "linker":          { "$ref": "#/definitions/LinkersType" },
+        "link-time-optimize": { "$ref": "#/definitions/LinkTimeOptimizeType" },
         "misc":            { "$ref": "#/definitions/MiscTypes" },
         "not-for-context": { "$ref": "#/definitions/NotForContext" },
         "optimize":        { "$ref": "#/definitions/OptimizeType" },
diff --git a/tools/projmgr/src/ProjMgrCbuild.cpp b/tools/projmgr/src/ProjMgrCbuild.cpp
index 5c593f130..3b6f913d6 100644
--- a/tools/projmgr/src/ProjMgrCbuild.cpp
+++ b/tools/projmgr/src/ProjMgrCbuild.cpp
@@ -460,6 +460,9 @@ void ProjMgrCbuild::SetControlsNode(YAML::Node node, const ContextItem* context,
   SetNodeValue(node[YAML_WARNINGS], controls.warnings);
   SetNodeValue(node[YAML_LANGUAGE_C], controls.languageC);
   SetNodeValue(node[YAML_LANGUAGE_CPP], controls.languageCpp);
+  if (controls.lto) {
+    node[YAML_LINK_TIME_OPTIMIZE] = true;
+  }
   SetMiscNode(node[YAML_MISC], controls.misc);
   SetDefineNode(node[YAML_DEFINE], controls.defines);
   SetDefineNode(node[YAML_DEFINE_ASM], controls.definesAsm);
diff --git a/tools/projmgr/src/ProjMgrWorker.cpp b/tools/projmgr/src/ProjMgrWorker.cpp
index 6096b565c..4698f12c8 100644
--- a/tools/projmgr/src/ProjMgrWorker.cpp
+++ b/tools/projmgr/src/ProjMgrWorker.cpp
@@ -2923,6 +2923,19 @@ bool ProjMgrWorker::ProcessPrecedences(ContextItem& context, BoardOrDevice proce
     error |= true;
   }
 
+  // Link Time Optimize
+  context.controls.processed.lto =
+    context.controls.cproject.lto ||
+    context.controls.csolution.lto ||
+    context.controls.target.lto ||
+    context.controls.build.lto;
+  for (auto& setup : context.controls.setups) {
+    context.controls.processed.lto |= setup.lto;
+  }
+  for (auto& [_, clayer] : context.controls.clayers) {
+    context.controls.processed.lto |= clayer.lto;
+  }
+
   // Misc
   vector<vector<MiscItem>*> miscVec = {
     &context.controls.cproject.misc,
diff --git a/tools/projmgr/src/ProjMgrYamlParser.cpp b/tools/projmgr/src/ProjMgrYamlParser.cpp
index f73e09b08..349bf5b89 100644
--- a/tools/projmgr/src/ProjMgrYamlParser.cpp
+++ b/tools/projmgr/src/ProjMgrYamlParser.cpp
@@ -960,6 +960,7 @@ bool ProjMgrYamlParser::ParseBuildType(const YAML::Node& parent, const string& f
   for (const auto& item : buildChildren) {
     ParseString(parent, item.first, item.second);
   }
+  buildType.lto = parent[YAML_LINK_TIME_OPTIMIZE].IsDefined();
   ParseProcessor(parent, buildType.processor);
   ParseMisc(parent, buildType.misc);
   if (!ParseDefine(parent[YAML_DEFINE], buildType.defines)) {
@@ -1089,6 +1090,7 @@ const set<string> solutionKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1123,6 +1125,7 @@ const set<string> projectKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1152,6 +1155,7 @@ const set<string> setupKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1178,6 +1182,7 @@ const set<string> layerKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1215,6 +1220,7 @@ const set<string> targetTypeKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1236,6 +1242,7 @@ const set<string> buildTypeKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1317,6 +1324,7 @@ const set<string> componentsKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1366,6 +1374,7 @@ const set<string> groupsKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
@@ -1387,6 +1396,7 @@ const set<string> filesKeys = {
   YAML_WARNINGS,
   YAML_LANGUAGE_C,
   YAML_LANGUAGE_CPP,
+  YAML_LINK_TIME_OPTIMIZE,
   YAML_DEFINE,
   YAML_DEFINE_ASM,
   YAML_UNDEFINE,
diff --git a/tools/projmgr/test/data/TestLTO/main.c b/tools/projmgr/test/data/TestLTO/main.c
new file mode 100644
index 000000000..7e06c94d0
--- /dev/null
+++ b/tools/projmgr/test/data/TestLTO/main.c
@@ -0,0 +1 @@
+/* Dummy */
diff --git a/tools/projmgr/test/data/TestLTO/project.cproject.yml b/tools/projmgr/test/data/TestLTO/project.cproject.yml
new file mode 100644
index 000000000..5d2a553b6
--- /dev/null
+++ b/tools/projmgr/test/data/TestLTO/project.cproject.yml
@@ -0,0 +1,14 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/cproject.schema.json
+
+project:
+
+  components:
+    - component: CORE
+    - component: Startup
+      link-time-optimize:
+
+  groups:
+    - group: Source
+      files:
+        - file: main.c
+          link-time-optimize:
diff --git a/tools/projmgr/test/data/TestLTO/solution.csolution.yml b/tools/projmgr/test/data/TestLTO/solution.csolution.yml
new file mode 100644
index 000000000..24568a286
--- /dev/null
+++ b/tools/projmgr/test/data/TestLTO/solution.csolution.yml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/csolution.schema.json
+
+solution:
+
+  compiler: AC6
+
+  target-types:
+    - type: CM0
+      device: RteTest_ARMCM0
+      link-time-optimize:
+
+  projects:
+    - project: project.cproject.yml
+
+  packs:
+    - pack: ARM::RteTest_DFP
diff --git a/tools/projmgr/test/src/ProjMgrUnitTests.cpp b/tools/projmgr/test/src/ProjMgrUnitTests.cpp
index 94c938678..e754cd5b4 100644
--- a/tools/projmgr/test/src/ProjMgrUnitTests.cpp
+++ b/tools/projmgr/test/src/ProjMgrUnitTests.cpp
@@ -6855,3 +6855,15 @@ TEST_F(ProjMgrUnitTests, ConvertActiveTargetSet) {
   errStr = streamRedirect.GetErrorString();
   EXPECT_STREQ(errStr.c_str(), "error csolution: unknown selected context(s):\n  UnknownContext+Type1\n");
 }
+
+TEST_F(ProjMgrUnitTests, LinkTimeOptimize) {
+  char* argv[3];
+  const string& csolution = testinput_folder + "/TestLTO/solution.csolution.yml";
+  argv[1] = (char*)"convert";
+  argv[2] = (char*)csolution.c_str();
+  EXPECT_EQ(0, RunProjMgr(3, argv, m_envp));
+  const YAML::Node& cbuild = YAML::LoadFile(testinput_folder + "/TestLTO/project+CM0.cbuild.yml");
+  EXPECT_TRUE(cbuild["build"]["link-time-optimize"].IsDefined());
+  EXPECT_TRUE(cbuild["build"]["components"][0]["link-time-optimize"].IsDefined());
+  EXPECT_TRUE(cbuild["build"]["groups"][0]["files"][0]["link-time-optimize"].IsDefined());
+}