================
@@ -1353,6 +1353,19 @@ void CodeGenFunction::EmitLifetimeEnd(llvm::Value *Size,
llvm::Value *Addr) {
C->setDoesNotThrow();
}
+void CodeGenFunction::EmitFakeUse(Address Addr) {
+ // We do not emit a fake use if we want to apply optnone to this function,
+ // even if we might not apply it anyway due to minsize or similar attributes.
+ if (!CGM.getCodeGenOpts().DisableO0ImplyOptNone &&
+ CGM.getCodeGenOpts().OptimizationLevel == 0)
+ return;
----------------
dwblaikie wrote:
(FWIW - clang IRGen always emit stack-home locations, at any optimization level
- it's only a question of whether we run the optimizations (& whether they
fire, eg: we might run the optimization pass, but it detects a function is
optnone, then it does nothing) that remove those stack homes)
https://github.com/llvm/llvm-project/pull/110102
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