llvm-dis hello_world.bc -o hello_world.ll

hello_world.ll

; ModuleID = 'hello_world.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin"

%tydesc = type { i64, i64, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, i8*, i8* }

@_rust_crate_map_toplevel = global { i32, i8*, i64, [2 x i64] } { i32 1, i8* bitcast ({} ({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*)* @_ZN7cleanup10annihilate17_c17425bfbdabf8296_07preE to i8*), i64 ptrtoint ([1 x { i64, i64 }]* @_rust_mod_map to i64), [2 x i64] [i64 ptrtoint (i64* @_rust_crate_map_std_0.7-pre_c3ca5d77d81b46c1 to i64), i64 0] }
@_rust_crate_map_std_0.7-pre_c3ca5d77d81b46c1 = external global i64
@_rust_mod_map = internal global [1 x { i64, i64 }] zeroinitializer
@rust_abi_version = constant i64 1

declare i64 @upcall_call_shim_on_rust_stack(i8*, i8*)

define internal i64 @_ZN9add_three16_e0f64ae76a8e9923_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*, i64) {
static_allocas:
  %2 = alloca i64
  %3 = alloca i64
  br label %5

return:                                           ; preds = %5
  %4 = load i64* %2
  ret i64 %4

; <label>:5                                       ; preds = %static_allocas
  store i64 %1, i64* %3
  %6 = load i64* %3
  %7 = add i64 3, %6
  store i64 %7, i64* %2
  br label %return
}

define internal i64 @_ZN6double16_e0f64ae76a8e9923_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*, i64) {
static_allocas:
  %2 = alloca i64
  %3 = alloca i64
  br label %5

return:                                           ; preds = %5
  %4 = load i64* %2
  ret i64 %4

; <label>:5                                       ; preds = %static_allocas
  store i64 %1, i64* %3
  %6 = load i64* %3
  %7 = mul i64 2, %6
  store i64 %7, i64* %2
  br label %return
}

define i64 @meaning_of_life() {
static_allocas:
  %0 = alloca i64
  %1 = alloca { i64* }
  %2 = alloca i64
  br label %4

return:                                           ; preds = %4
  %3 = load i64* %0
  ret i64 %3

; <label>:4                                       ; preds = %static_allocas
  %5 = getelementptr inbounds { i64* }* %1, i32 0, i32 0
  store i64* %2, i64** %5
  %6 = bitcast { i64* }* %1 to i8*
  %7 = call i64 @upcall_call_shim_on_rust_stack(i8* %6, i8* bitcast ({} ({ i64* }*)* @_ZN15meaning_of_life17__rust_stack_shimE to i8*))
  %8 = getelementptr inbounds { i64* }* %1, i32 0, i32 0
  %9 = load i64** %8
  %10 = load i64* %9
  store i64 %10, i64* %0
  br label %return
}

define internal i64 @_ZN15meaning_of_life10__rust_abiE({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*) {
static_allocas:
  %1 = alloca i64
  %2 = alloca i64
  %3 = alloca i64
  %4 = alloca i64
  br label %6

return:                                           ; preds = %15
  %5 = load i64* %1
  ret i64 %5

; <label>:6                                       ; preds = %static_allocas
  br label %7

; <label>:7                                       ; preds = %6
  br label %8

; <label>:8                                       ; preds = %7
  store i64 18, i64* %3
  %9 = load i64* %3
  %10 = call i64 @_ZN9add_three16_e0f64ae76a8e9923_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)* undef, i64 %9)
  store i64 %10, i64* %2
  br label %11

; <label>:11                                      ; preds = %8
  %12 = load i64* %2
  store i64 %12, i64* %4
  %13 = load i64* %4
  %14 = call i64 @_ZN6double16_e0f64ae76a8e9923_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)* undef, i64 %13)
  store i64 %14, i64* %1
  br label %15

; <label>:15                                      ; preds = %11
  br label %return
}

define internal {} @_ZN15meaning_of_life17__rust_stack_shimE({ i64* }*) {
static_allocas:
  %1 = alloca i64
  br label %2

return:                                           ; preds = %2
  ret {} zeroinitializer

; <label>:2                                       ; preds = %static_allocas
  %3 = call i64 @_ZN15meaning_of_life10__rust_abiE({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)* null)
  %4 = getelementptr inbounds { i64* }* %0, i32 0, i32 0
  %5 = load i64** %4
  store i64 %3, i64* %5
  br label %return
}

define internal {} @_ZN4main17_3941ddf94af05e673_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*) {
static_allocas:
  %1 = alloca {}
  br label %3

return:                                           ; preds = %3
  %2 = load {}* %1
  ret {} %2

; <label>:3                                       ; preds = %static_allocas
  br label %return
}

define {} @_rust_main({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*) {
static_allocas:
  %1 = alloca {}
  br label %3

return:                                           ; preds = %3
  %2 = load {}* %1
  ret {} %2

; <label>:3                                       ; preds = %static_allocas
  %4 = call {} @_ZN4main17_3941ddf94af05e673_00E({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)* %0)
  store {} %4, {}* %1
  br label %return
}

define i64 @main(i64, i8**) {
top:
  %2 = call i64 @_ZN8unstable4lang5start17_80798dc0c0e380dc6_07preE({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)* null, i8* bitcast ({} ({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*)* @_rust_main to i8*), i64 %0, i8** %1, i8* bitcast ({ i32, i8*, i64, [2 x i64] }* @_rust_crate_map_toplevel to i8*))
  ret i64 %2
}

declare i64 @_ZN8unstable4lang5start17_80798dc0c0e380dc6_07preE({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*, i8*, i64, i8**, i8*)

declare {} @_ZN7cleanup10annihilate17_c17425bfbdabf8296_07preE({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*)