[LLVMdev] Puzzled by results of -O3

[Timo Juhani Lindfors]

Stephan <stephan.reiter at gmail.com> writes:
> store [1 x i32] zeroinitializer, [1 x i32]* %tmp4

If I replace this with

%tmp6 = bitcast [1 x i32]* %tmp4 to i32* ; <[1 x i32]*>[#uses=1]
store i32 0, i32* %tmp6

then "opt -gvn" alone is enough figure out "ret i32 0".