steplong added a comment.
> Isn't the question whether `f` is considered "extern C" in the end or not? I
> thought `isExternC()` checks that? Are you saying it would return false for
> `f` in your example?
Yup, `isExternC()` is returning false for that case because there's "static".
> I'm probably missing something. Is the "static" important in this example?
> Since `f` has internal linkage, I don't see why a user would care if it's
> "extern C" or not, and also not in which section it would go (in this case it
> will not be emitted at all, because it's not used).
Hmm, good point. This is the disassembly I see for:
extern "C" { static void f(); }
static void f();
#pragma alloc_text(s, f)
static void f() {}
void bar() {
f();
}
Disassembly of section .text$mn:
?bar@@YAXXZ:
0: fd 7b bf a9 stp x29, x30, [sp, #-16]!
4: fd 03 00 91 mov x29, sp
8: 00 00 00 94 bl #0 <?bar@@YAXXZ+0x8>
c: fd 7b c1 a8 ldp x29, x30, [sp], #16
10: c0 03 5f d6 ret
Disassembly of section s:
s:
0: c0 03 5f d6 ret
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D128649/new/
https://reviews.llvm.org/D128649
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