================
@@ -1262,6 +1277,26 @@
LoweringPreparePass::buildCXXGlobalVarDeclInitFunc(cir::GlobalOp op) {
// If this is a global TLS variable (that is, declared at namespace scope),
we
// have to emit the guard variable here.
bool needsTlsGuard = op.getTlsRefs() && op.getTlsRefs()->getGuardName();
+
+ // Non-TLS globals (such as weak/linkonce_odr/inline-ns scope variables) use
+ // the __cxa_guard_acquire/release instead of the TLS guard.
+ if (!needsTlsGuard && op.getDynamicInitGuard()) {
+ if (!op.getDynamicInitInfo()) {
+ op->emitError(
+ "guarded global with a guard is missing 'dynamic_init_info'");
+ return {};
+ }
+
+ if (op.getDynamicInitInfo()->getLocal()) {
+ op->emitError("guarded global is marked local");
+ return {};
+ }
+ emitGuardedInit(builder, op, op.getCtorRegion(), op.getDtorRegion());
----------------
xakep8 wrote:
emitGuardedInit retains the hasOneBlock() assumptions from the LocalInitOp
path, but GlobalOp ctor/dtor regions are AnyRegion.
https://github.com/llvm/llvm-project/pull/228586
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