================
@@ -13,7 +13,10 @@ void init(void * 
__attribute__((pass_dynamic_object_size(0))));
 // CHECK-LABEL: define dso_local void @_ZN3foo3barC1Ev(
 // CHECK-SAME: ptr noundef nonnull align 4 dereferenceable(1) [[THIS:%.*]]) 
unnamed_addr #[[ATTR0:[0-9]+]] align 2 {
 // CHECK-NEXT:  entry:
-// CHECK-NEXT:    tail call void @_Z4initPvU25pass_dynamic_object_size0(ptr 
noundef nonnull align 4 dereferenceable(1) [[THIS]], i64 noundef -1) 
#[[ATTR2:[0-9]+]]
----------------
Sirraide wrote:

> different behaviour depending on optimisation levels

As in, Clang emits different IR before it even gets to the optimiser.

https://github.com/llvm/llvm-project/pull/114495
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