https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92015
Bug ID: 92015
Summary: internal compiler error: in cxx_eval_array_reference,
at cp/constexpr.c:2568
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ed at catmur dot uk
Target Milestone: ---
when indexing a char array initialized from a string literal in constexpr
context:
struct S1 { char c[6] {'h', 'e', 'l', 'l', 'o', 0}; };
struct S2 { char c[6] = "hello"; };
static_assert(S1{}.c[0] == 'h'); // OK
static_assert(S2{}.c[0] == 'h'); // ICE
Expected: both static_asserts pass.
According to Godbolt, this ICE was introduced between 8.3 and 9.1, and is still
present in 10.0.
