Differences in named v anonymous code generation

gistfile1.jl

function o1()
  function f1(i); i; end
end
function o2()
  f2(i) = i
end
function o3()
  f3 = function(i); i; end
end
function o4()
  f = i->i
end

code_llvm(o1, ())
code_llvm(o2, ())
code_llvm(o3, ())
code_llvm(o4, ())

define %jl_value_t* @julia_o115896() {
top:
  %0 = alloca [5 x %jl_value_t*], align 8
  %.sub = getelementptr inbounds [5 x %jl_value_t*]* %0, i64 0, i64 0
  %1 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 2, !dbg !2024
  store %jl_value_t* inttoptr (i64 6 to %jl_value_t*), %jl_value_t** %.sub, align 8
  %2 = load %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  %3 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 1, !dbg !2024
  %.c = bitcast %jl_value_t** %2 to %jl_value_t*, !dbg !2024
  store %jl_value_t* %.c, %jl_value_t** %3, align 8, !dbg !2024
  store %jl_value_t** %.sub, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  store %jl_value_t* null, %jl_value_t** %1, align 8, !dbg !2024
  %4 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 3
  store %jl_value_t* null, %jl_value_t** %4, align 8
  %5 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 4
  store %jl_value_t* null, %jl_value_t** %5, align 8
  %6 = load %jl_value_t** inttoptr (i64 140264582870160 to %jl_value_t**), align 16, !dbg !2025
  %7 = call %jl_value_t* @allocobj(i64 24), !dbg !2025
  %8 = getelementptr inbounds %jl_value_t* %7, i64 2, i32 0, !dbg !2025
  store %jl_value_t* %6, %jl_value_t** %8, align 8, !dbg !2025
  %9 = getelementptr inbounds %jl_value_t* %7, i64 0, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563857920 to %jl_value_t*), %jl_value_t** %9, align 8, !dbg !2025
  %10 = getelementptr inbounds %jl_value_t* %7, i64 1, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 1 to %jl_value_t*), %jl_value_t** %10, align 8, !dbg !2025
  store %jl_value_t* %7, %jl_value_t** %4, align 8, !dbg !2025
  %11 = call %jl_value_t* @allocobj(i64 32), !dbg !2025
  %12 = getelementptr inbounds %jl_value_t* %11, i64 2, i32 0, !dbg !2025
  store %jl_value_t* %7, %jl_value_t** %12, align 8, !dbg !2025
  %13 = getelementptr inbounds %jl_value_t* %11, i64 0, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563857920 to %jl_value_t*), %jl_value_t** %13, align 8, !dbg !2025
  %14 = getelementptr inbounds %jl_value_t* %11, i64 1, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 2 to %jl_value_t*), %jl_value_t** %14, align 8, !dbg !2025
  %15 = getelementptr inbounds %jl_value_t* %11, i64 3, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563870720 to %jl_value_t*), %jl_value_t** %15, align 8, !dbg !2025
  store %jl_value_t* %11, %jl_value_t** %4, align 8, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264664979008 to %jl_value_t*), %jl_value_t** %5, align 8, !dbg !2025
  %16 = call %jl_value_t* @jl_method_def(%jl_value_t* inttoptr (i64 140264596983984 to %jl_value_t*), %jl_value_t** %1, %jl_value_t* null, %jl_value_t* %11, %jl_value_t* inttoptr (i64 140264664979008 to %jl_value_t*)), !dbg !2025
  %17 = load %jl_value_t** %3, align 8, !dbg !2025
  %18 = getelementptr inbounds %jl_value_t* %17, i64 0, i32 0, !dbg !2025
  store %jl_value_t** %18, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2025
  ret %jl_value_t* %16, !dbg !2025
}

define %jl_value_t* @julia_o215897() {
top:
  %0 = alloca [5 x %jl_value_t*], align 8
  %.sub = getelementptr inbounds [5 x %jl_value_t*]* %0, i64 0, i64 0
  %1 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 2, !dbg !2024
  store %jl_value_t* inttoptr (i64 6 to %jl_value_t*), %jl_value_t** %.sub, align 8
  %2 = load %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  %3 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 1, !dbg !2024
  %.c = bitcast %jl_value_t** %2 to %jl_value_t*, !dbg !2024
  store %jl_value_t* %.c, %jl_value_t** %3, align 8, !dbg !2024
  store %jl_value_t** %.sub, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  store %jl_value_t* null, %jl_value_t** %1, align 8, !dbg !2024
  %4 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 3
  store %jl_value_t* null, %jl_value_t** %4, align 8
  %5 = getelementptr [5 x %jl_value_t*]* %0, i64 0, i64 4
  store %jl_value_t* null, %jl_value_t** %5, align 8
  %6 = load %jl_value_t** inttoptr (i64 140264582870160 to %jl_value_t**), align 16, !dbg !2025
  %7 = call %jl_value_t* @allocobj(i64 24), !dbg !2025
  %8 = getelementptr inbounds %jl_value_t* %7, i64 2, i32 0, !dbg !2025
  store %jl_value_t* %6, %jl_value_t** %8, align 8, !dbg !2025
  %9 = getelementptr inbounds %jl_value_t* %7, i64 0, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563857920 to %jl_value_t*), %jl_value_t** %9, align 8, !dbg !2025
  %10 = getelementptr inbounds %jl_value_t* %7, i64 1, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 1 to %jl_value_t*), %jl_value_t** %10, align 8, !dbg !2025
  store %jl_value_t* %7, %jl_value_t** %4, align 8, !dbg !2025
  %11 = call %jl_value_t* @allocobj(i64 32), !dbg !2025
  %12 = getelementptr inbounds %jl_value_t* %11, i64 2, i32 0, !dbg !2025
  store %jl_value_t* %7, %jl_value_t** %12, align 8, !dbg !2025
  %13 = getelementptr inbounds %jl_value_t* %11, i64 0, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563857920 to %jl_value_t*), %jl_value_t** %13, align 8, !dbg !2025
  %14 = getelementptr inbounds %jl_value_t* %11, i64 1, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 2 to %jl_value_t*), %jl_value_t** %14, align 8, !dbg !2025
  %15 = getelementptr inbounds %jl_value_t* %11, i64 3, i32 0, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264563870720 to %jl_value_t*), %jl_value_t** %15, align 8, !dbg !2025
  store %jl_value_t* %11, %jl_value_t** %4, align 8, !dbg !2025
  store %jl_value_t* inttoptr (i64 140264664979744 to %jl_value_t*), %jl_value_t** %5, align 8, !dbg !2025
  %16 = call %jl_value_t* @jl_method_def(%jl_value_t* inttoptr (i64 140264597128592 to %jl_value_t*), %jl_value_t** %1, %jl_value_t* null, %jl_value_t* %11, %jl_value_t* inttoptr (i64 140264664979744 to %jl_value_t*)), !dbg !2025
  %17 = load %jl_value_t** %3, align 8, !dbg !2025
  %18 = getelementptr inbounds %jl_value_t* %17, i64 0, i32 0, !dbg !2025
  store %jl_value_t** %18, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2025
  ret %jl_value_t* %16, !dbg !2025
}

define %jl_value_t* @julia_o315898() {
top:
  %0 = alloca [3 x %jl_value_t*], align 8
  %.sub = getelementptr inbounds [3 x %jl_value_t*]* %0, i64 0, i64 0
  %1 = getelementptr [3 x %jl_value_t*]* %0, i64 0, i64 2, !dbg !2024
  store %jl_value_t* inttoptr (i64 2 to %jl_value_t*), %jl_value_t** %.sub, align 8
  %2 = load %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  %3 = getelementptr [3 x %jl_value_t*]* %0, i64 0, i64 1, !dbg !2024
  %.c = bitcast %jl_value_t** %2 to %jl_value_t*, !dbg !2024
  store %jl_value_t* %.c, %jl_value_t** %3, align 8, !dbg !2024
  store %jl_value_t** %.sub, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  store %jl_value_t* inttoptr (i64 140264664898528 to %jl_value_t*), %jl_value_t** %1, align 8, !dbg !2025
  %4 = load %jl_value_t** %3, align 8, !dbg !2025
  %5 = getelementptr inbounds %jl_value_t* %4, i64 0, i32 0, !dbg !2025
  store %jl_value_t** %5, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2025
  ret %jl_value_t* inttoptr (i64 140264664898528 to %jl_value_t*), !dbg !2025
}

define %jl_value_t* @julia_o415899() {
top:
  %0 = alloca [3 x %jl_value_t*], align 8
  %.sub = getelementptr inbounds [3 x %jl_value_t*]* %0, i64 0, i64 0
  %1 = getelementptr [3 x %jl_value_t*]* %0, i64 0, i64 2, !dbg !2024
  store %jl_value_t* inttoptr (i64 2 to %jl_value_t*), %jl_value_t** %.sub, align 8
  %2 = load %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  %3 = getelementptr [3 x %jl_value_t*]* %0, i64 0, i64 1, !dbg !2024
  %.c = bitcast %jl_value_t** %2 to %jl_value_t*, !dbg !2024
  store %jl_value_t* %.c, %jl_value_t** %3, align 8, !dbg !2024
  store %jl_value_t** %.sub, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2024
  store %jl_value_t* inttoptr (i64 140264664900192 to %jl_value_t*), %jl_value_t** %1, align 8, !dbg !2025
  %4 = load %jl_value_t** %3, align 8, !dbg !2025
  %5 = getelementptr inbounds %jl_value_t* %4, i64 0, i32 0, !dbg !2025
  store %jl_value_t** %5, %jl_value_t*** @jl_pgcstack, align 8, !dbg !2025
  ret %jl_value_t* inttoptr (i64 140264664900192 to %jl_value_t*), !dbg !2025
}