[LLVMdev] a packed constant cannot be referenced in the arithmetic instruction?

[Tzu-Chien Chiu]

%foo1 = constant <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>;

void %main() {
    %x = mul <4 x float> %foo1, %foo1
    ret void
}

llvm-as complained " Reference to an invalid definition: 'foo1' of
type '<4 x float>' ".

I searched all test script in llvm/test, and I found the only way to
use packed constant is:

%foo1 = uninitialized global <4 x float>;

void %main() {
    store <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, <4
x float>* %foo1
    %l1 = load <4 x float>* %foo1
    %x = mul <4 x float> %l1, %l1
    ret void
}

(in "llvm/test/Feature/packed.ll")

Why?