https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80366
Bug ID: 80366
Summary: [7 Regression] r246759 causes LLVM build failure:
error: comdat-local function called by outside its
comdat
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: hubicka at ucw dot cz, marxin at gcc dot gnu.org
Target Milestone: ---
Since r246759 LLVM doesn't build anymore:
trippels@gcc2-power8 llvm_build % cat DAGISelMatcherEmitter.ii
struct B {
int *Ptr;
B(int, int p2) {
if (!p2)
if (Ptr || *Ptr)
++Ptr;
}
};
template <typename> struct StringMapIterator : B {
using base = B;
StringMapIterator() : base(0, 0) {}
};
template <typename> struct A {
void operator[](int) { StringMapIterator<int>(); }
};
struct C {
A<int> PatternPredicateMap;
unsigned m_fn1();
};
unsigned C::m_fn1() { PatternPredicateMap[0]; }
trippels@gcc2-power8 llvm_build % g++ -c -O3 DAGISelMatcherEmitter.ii
DAGISelMatcherEmitter.ii:20:47: error: comdat-local function called by
B::B(int, int) outside its comdat
unsigned C::m_fn1() { PatternPredicateMap[0]; }
^
_ZN1BC2Eii.part.0/8 (B::B(int, int)) @0x3fff7bf70000
Type: function definition analyzed
Visibility: prevailing_def_ironly comdat_group:_ZN1BC5Eii artificial
Same comdat group as: _ZN1BC2Eii/1
References:
Referring:
Availability: local
First run: 1
Function flags: body local split_part
Called by: _ZN1BC2Eii.constprop.2/10 (0.54 per call) _ZN1BC2Eii/1 (0.54 per
call)
Calls:
DAGISelMatcherEmitter.ii:20:47: internal compiler error: verify_cgraph_node
failed
0x10610e0b cgraph_node::verify_node()
../../gcc/gcc/cgraph.c:3505
0x10600ec3 symtab_node::verify()
../../gcc/gcc/symtab.c:1183
0x106013c7 symtab_node::verify_symtab_nodes()
../../gcc/gcc/symtab.c:1203
0x10904b43 symtab_node::checking_verify_symtab_nodes()
../../gcc/gcc/cgraph.h:616
0x10904b43 symbol_table::remove_unreachable_nodes(_IO_FILE*)
../../gcc/gcc/ipa.c:698
0x10a3c62f execute_todo
../../gcc/gcc/passes.c:2030
