================
@@ -41,9 +43,10 @@ Base::~Base() {}
// CHECK: @_ZTSW3Mod4Base = constant
// CHECK: @_ZTIW3Mod4Base = constant
-// CHECK-INLINE: @_ZTVW3Mod4Base = linkonce_odr {{.*}}unnamed_addr constant
-// CHECK-INLINE: @_ZTSW3Mod4Base = linkonce_odr {{.*}}constant
-// CHECK-INLINE: @_ZTIW3Mod4Base = linkonce_odr {{.*}}constant
+// With the new Itanium C++ ABI, the linkage of vtables in modules don't need
to be linkonce ODR.
----------------
dwblaikie wrote:
Would they benefit from still being linkonce? What if the vtable is never used?
Or do we leave that up to `--gc-sections` linker behavior? (I'm not clear on
when we use linkage to let things be dropped, and when we use the linker
function-sections/data-sections/gc-sections behavior to drop unused stuff)
https://github.com/llvm/llvm-project/pull/75912
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