[CIR][CodeGen][Builtin] `__builtin_ia32_shufp*`

[tommymcm]

Minimized test case:

#include "wmmintrin.h"
int A(n, a, A, h, w)
int n;
int a, A, h, w;
{ __m128 b = __builtin_ia32_shufps(b, b, 0); }

Failed assertion:

clangir/clang/lib/CIR/CodeGen/CIRGenBuiltinX86.cpp

Line 810 in aeac352

llvm_unreachable("shufpd NYI");

Flags: -fclangir -O2