================
@@ -361,6 +368,13 @@ CodeGenFunction::AddInitializerToStaticVarDecl(const
VarDecl &D,
}
return GV;
}
+ if (!getLangOpts().CPlusPlus) {
+ // In C, when an initializer is given, the Linux kernel relies on clang to
+ // zero-initialize all members not explicitly initialized, including
padding
+ // bits.
----------------
rjmccall wrote:
> > But I assume that similar code is required in order to explicitly zero out
> > any padding when dynamically initializing a local variable.
>
> I guess you mean variables assigned by Compound literals after variable
> definition. An example is in https://godbolt.org/z/caaEKnjWe.
No, I mean initializing a local aggregate with a non-constant initializer, e.g.
```
void g(char c) {
struct A a = { c, 2 };
}
```
Do we already zero the padding correctly in this case?
https://github.com/llvm/llvm-project/pull/97121
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