Ygen 0.1.2

# RUN: 
cargo run -p ylc -- -in=%s -o=out.o
gcc out.o -o a.exe
./a.exe
# IN:
define u32 @main() {
 entry:
    %0 = u32 5
    %1 = u32 0
    %2 = cmp le u32 %0, %1
    br cond %2 yeah, no
  
  yeah:
    ret u32 1

  no:
    ret u32 4
}

# EXIT_CODE=4