https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101880
Bug ID: 101880
Summary: mangling vec_perm_expr is not implemented
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ABI
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
Take:
template<typename T>
auto foo(const T& x) -> decltype(__builtin_shuffle(x,x)) { return x; }
#define vector(x,y) x __attribute__((vector_size(y*sizeof(x))))
vector(int,16) y(vector(int,16) x)
{
return foo(x);
}
---- CUT ----
We produce currently:
<source>: In instantiation of 'decltype ('vec_perm_expr' not supported by
dump_expr<expression error>) foo(const T&) [with T = __vector(16) int]':
<source>:3:6: sorry, unimplemented: mangling vec_perm_expr
3 | auto foo(const T& x) -> decltype(__builtin_shuffle(x,x)) { return x; }
| ^~~
