From 3423e73cece2657e4e0008a60f2f9d0ade618fbe Mon Sep 17 00:00:00 2001
From: Icenowy Zheng <uwu@icenowy.me>
Date: Wed, 17 Jul 2024 01:46:46 +0800
Subject: [PATCH] gallivm: orcjit: keep the ownership of tm for LPJit

The ownership of the TargetMachine object is released when LPJit
singleton is constructed, leads to a slight memory loss detectable.

Keep the ownership by saving the unique pointer as another class member
named tm_unique.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30216>
---
 src/gallium/auxiliary/gallivm/lp_bld_init_orc.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init_orc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_init_orc.cpp
index 32792138220..9821e3176d8 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init_orc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init_orc.cpp
@@ -279,6 +279,7 @@ private:
    static LPJit* jit;
 
    std::unique_ptr<llvm::orc::LLJIT> lljit;
+   std::unique_ptr<llvm::TargetMachine> tm_unique;
    /* avoid name conflict */
    unsigned jit_dylib_count;
 
@@ -318,7 +319,8 @@ LPJit::LPJit() :jit_dylib_count(0) {
 
    init_native_targets();
    JITTargetMachineBuilder JTMB = create_jtdb();
-   tm = wrap(ExitOnErr(JTMB.createTargetMachine()).release());
+   tm_unique = ExitOnErr(JTMB.createTargetMachine());
+   tm = wrap(tm_unique.get());
 
    /* Create an LLJIT instance with an ObjectLinkingLayer (JITLINK)
     * or RuntimeDyld as the base layer.