https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103326
Bug ID: 103326
Summary: constexpr crashing when uses with vector extensions
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: unlvsur at live dot com
Target Milestone: ---
using x86_64_v16qi [[gnu::__vector_size__ (16)]] = char;
template<typename T>
void foo()
{
constexpr x86_64_v16qi zero{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0};
}
void foo2()
{
foo<int>();
}
D:\hg\fast_io\.tmp>g++ -S simd_constexpr_crashing.cc -Ofast -std=c++20
-march=native -I../include
simd_constexpr_crashing.cc: In instantiation of 'void foo() [with T = int]':
simd_constexpr_crashing.cc:11:10: required from here
simd_constexpr_crashing.cc:6:32: internal compiler error: in tsubst_copy, at
cp/pt.c:17303
6 | constexpr x86_64_v16qi zero{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0};
| ^~~~
libbacktrace could not find executable to open
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