https://bugs.llvm.org/show_bug.cgi?id=42547
Bug ID: 42547
Summary: asm goto should not emit debug info at -g0
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: LLVM Codegen
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
small bug, but:
void foo(void) {
for (int j = 0; j < 3; ++j) {
// looks like bar gets "unrolled" while baz does not
asm goto(".quad %l0\n\t.quad %l1" :: "i"(&&baz) :: bar);
bar:;
baz:;
}
}
generates:
callbr void asm sideeffect ".quad ${0:l}\0A\09.quad ${1:l}",
"i,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@foo, %8), i8*
blockaddress(@foo, %7)) #1
to label %6 [label %7], !srcloc !2
I don't think the #1, or !srcloc !2 should be emitted at -g0. I suspect
there's a missing check for this a flag set by g0?
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