unsigned Flags = LSDA->getFlags();
const MCSymbolELF *LinkedToSym = nullptr;
StringRef Group;
+ bool IsComdat = false;
if (const Comdat *C = getELFComdat(&F)) {
Flags |= ELF::SHF_GROUP;
Group = C->getName();
+ IsComdat = C->getSelectionKind() == Comdat::Any;
}
// Use SHF_LINK_ORDER to facilitate --gc-sections if we can use GNU ld>=2.36
// or LLD, which support mixed SHF_LINK_ORDER & non-SHF_LINK_ORDER.
return getContext().getELFSection(
(TM.getUniqueSectionNames() ? LSDA->getName() + "." + F.getName()
: LSDA->getName()),
- LSDA->getType(), Flags, 0, Group, F.hasComdat(), MCSection::NonUniqueID,
+ LSDA->getType(), Flags, 0, Group, IsComdat, MCSection::NonUniqueID,
LinkedToSym);
}
resume { i8*, i32 } %0
}
+;; If the function is in a comdat group with noduplicates kind, the generated
+;; .gcc_except_table should is lowered to a zero-flag ELF section group.
+$zero = comdat noduplicates
+define i32 @zero() uwtable comdat personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
+; CHECK-LABEL: zero:
+; CHECK: .cfi_endproc
+; NORMAL-NEXT: .section .gcc_except_table.zero,"aG",@progbits,zero{{$}}
+; SEP_BFD-NEXT: .section .gcc_except_table.zero,"aG",@progbits,zero{{$}}
+; SEP-NEXT: .section .gcc_except_table.zero,"aGo",@progbits,zero,zero{{$}}
+; SEP_NOUNIQUE-NEXT: .section .gcc_except_table,"aG",@progbits,zero{{$}}
+; NOUNIQUE-NEXT: .section .gcc_except_table,"aG",@progbits,zero{{$}}
+entry:
+ invoke void @ext() to label %try.cont unwind label %lpad
+lpad:
+ %0 = landingpad { i8*, i32 } catch i8* bitcast (i8** @_ZTIi to i8*)
+ br label %eh.resume
+try.cont:
+ ret i32 0
+eh.resume:
+ resume { i8*, i32 } %0
+}
+
declare void @ext()
declare i32 @__gxx_personality_v0(...)