From 071ae19af04e1ab6b1e535544a9bf829b9cf1af9 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Sun, 31 May 2026 19:07:34 -0400
Subject: [PATCH] xo-jit: workaround llvm warnings on gcc 14.3

---
 example/ex1/ex1.cpp           | 3 +++
 example/ex2_jit/ex2_jit.cpp   | 3 +++
 include/xo/jit/IrPipeline.hpp | 3 +++
 src/jit/CMakeLists.txt        | 3 ++-
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/example/ex1/ex1.cpp b/example/ex1/ex1.cpp
index 761c79fc..017f19ec 100644
--- a/example/ex1/ex1.cpp
+++ b/example/ex1/ex1.cpp
@@ -26,7 +26,10 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Transforms/InstCombine/InstCombine.h"
 #include "llvm/Transforms/Scalar.h"
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 #include "llvm/Transforms/Scalar/GVN.h"
+#pragma GCC diagnostic pop
 #include "llvm/Transforms/Scalar/Reassociate.h"
 #include "llvm/Transforms/Scalar/SimplifyCFG.h"
 #include <cmath>
diff --git a/example/ex2_jit/ex2_jit.cpp b/example/ex2_jit/ex2_jit.cpp
index 08a0bc16..0e8e68d3 100644
--- a/example/ex2_jit/ex2_jit.cpp
+++ b/example/ex2_jit/ex2_jit.cpp
@@ -27,7 +27,10 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Transforms/InstCombine/InstCombine.h"
 #include "llvm/Transforms/Scalar.h"
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 #include "llvm/Transforms/Scalar/GVN.h"
+#pragma GCC diagnostic pop
 #include "llvm/Transforms/Scalar/Reassociate.h"
 #include "llvm/Transforms/Scalar/SimplifyCFG.h"
 
diff --git a/include/xo/jit/IrPipeline.hpp b/include/xo/jit/IrPipeline.hpp
index 5268d088..2658b472 100644
--- a/include/xo/jit/IrPipeline.hpp
+++ b/include/xo/jit/IrPipeline.hpp
@@ -29,7 +29,10 @@
 # include "llvm/Target/TargetMachine.h"
 # include "llvm/Transforms/InstCombine/InstCombine.h"
 # include "llvm/Transforms/Scalar.h"
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 # include "llvm/Transforms/Scalar/GVN.h"
+# pragma GCC diagnostic pop
 # include "llvm/Transforms/Utils/Mem2Reg.h"
 # include "llvm/Transforms/Scalar/Reassociate.h"
 # include "llvm/Transforms/Scalar/SimplifyCFG.h"
diff --git a/src/jit/CMakeLists.txt b/src/jit/CMakeLists.txt
index ce09091b..77bd9a5e 100644
--- a/src/jit/CMakeLists.txt
+++ b/src/jit/CMakeLists.txt
@@ -43,7 +43,8 @@ execute_process(
 
 message(STATUS "LLVM_LIBS=[${LLVM_LIBS}]")
 
-target_include_directories(${SELF_LIB} PUBLIC ${LLVM_INCLUDE_DIRS})
+# SYSTEM: suppress warnings from LLVM headers (e.g. gcc14 false positive in SmallDenseMap)
+target_include_directories(${SELF_LIB} SYSTEM PUBLIC ${LLVM_INCLUDE_DIRS})
 target_compile_definitions(${SELF_LIB} PUBLIC ${LLVM_DEFINITIONS_LIST})
 target_link_directories(${SELF_LIB} PUBLIC ${LLVM_LIBRARY_DIR})
 target_link_libraries(${SELF_LIB} PUBLIC ${LLVM_LIBS})