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Yul -> ewasm with staticcall (staticcall not included in the bytecode); solc 0.6.8+commit.0bbfe453.Darwin.appleclang
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| ======= initial Yul source ======= | |
| object "TestWasm9_2" { | |
| code { | |
| datacopy(0, dataoffset("Runtime"), datasize("Runtime")) | |
| return(0, datasize("Runtime")) | |
| } | |
| object "Runtime" { | |
| code { | |
| let _calldata := 96 | |
| calldatacopy(_calldata, 0, calldatasize()) | |
| let addr := mslice(_calldata, 20) | |
| let input_ptr := add(_calldata, 20) | |
| // callStatic | |
| let success := staticcall(gas(), addr, input_ptr, 4, 0, 0) | |
| mstore(0, success) | |
| return (0, 32) | |
| function mslice(position, length) -> result { | |
| if gt(length, 32) { revert(0, 0) } | |
| result := div(mload(position), exp(2, sub(256, mul(length, 8)))) | |
| } | |
| } | |
| } | |
| } | |
| ======= ./tests/contracts/c9_2.yul (Ewasm) ======= | |
| Pretty printed source: | |
| object "TestWasm9_2" { | |
| code { | |
| { | |
| let _1 := datasize("Runtime") | |
| datacopy(0, dataoffset("Runtime"), _1) | |
| return(0, _1) | |
| } | |
| } | |
| object "Runtime" { | |
| code { | |
| { | |
| calldatacopy(96, 0, calldatasize()) | |
| mstore(0, staticcall(gas(), div(mload(96), shl(96, 1)), 116, 4, 0, 0)) | |
| return(0, 32) | |
| } | |
| } | |
| } | |
| } | |
| ========================== | |
| Translated source: | |
| object "TestWasm9_2" { | |
| code { | |
| function main() | |
| { | |
| let _1 := datasize("Runtime") | |
| let _2 := 0 | |
| let _3:i32 := u256_to_i32(_2, _2, _2, _1) | |
| let _4:i32 := u256_to_i32(_2, _2, _2, dataoffset("Runtime")) | |
| let p:i32 := u256_to_i32(_2, _2, _2, _2) | |
| let r:i32 := i32.add(p, 64:i32) | |
| if i32.lt_u(r, p) { unreachable() } | |
| eth.codeCopy(r, _4, _3) | |
| let _5:i32 := u256_to_i32(_2, _2, _2, _1) | |
| let p_1:i32 := u256_to_i32(_2, _2, _2, _2) | |
| let r_1:i32 := i32.add(p_1, 64:i32) | |
| if i32.lt_u(r_1, p_1) { unreachable() } | |
| eth.finish(r_1, _5) | |
| } | |
| function u256_to_i32(x1, x2, x3, x4) -> v:i32 | |
| { | |
| if i64.ne(0, i64.or(i64.or(x1, x2), x3)) { unreachable() } | |
| if i64.ne(0, i64.shr_u(x4, 32)) { unreachable() } | |
| v := i32.wrap_i64(x4) | |
| } | |
| } | |
| object "Runtime" { | |
| code { | |
| function main() | |
| { | |
| let _1 := i64.extend_i32_u(eth.getCallDataSize()) | |
| let _2 := 0 | |
| let _3:i32 := u256_to_i32(_2, _2, _2, _1) | |
| let _4:i32 := u256_to_i32(_2, _2, _2, _2) | |
| let _5 := 96 | |
| let p:i32 := u256_to_i32(_2, _2, _2, _5) | |
| let r:i32 := i32.add(p, 64:i32) | |
| if i32.lt_u(r, p) { unreachable() } | |
| eth.callDataCopy(r, _4, _3) | |
| let x4 := _5 | |
| let y1 := _2 | |
| let y2 := _2 | |
| let y3 := _2 | |
| let y4 := 1 | |
| let z1 := _2 | |
| let z2 := _2 | |
| let z3 := _2 | |
| let z4 := _2 | |
| let _6:i32 := i64.eqz(_2) | |
| if i32.and(_6, _6) | |
| { | |
| if _6 | |
| { | |
| if i64.lt_u(_5, 256) | |
| { | |
| if i64.ge_u(_5, 128) | |
| { | |
| y1 := _2 | |
| y2 := y4 | |
| y3 := _2 | |
| y4 := _2 | |
| x4 := i64.sub(_5, 128) | |
| } | |
| if i64.ge_u(x4, 64) | |
| { | |
| y1 := y2 | |
| y2 := y3 | |
| y3 := y4 | |
| y4 := _2 | |
| x4 := i64.sub(x4, 64) | |
| } | |
| let t, z4_1 := shl_single(y4, x4) | |
| z4 := z4_1 | |
| let r_1, z3_1 := shl_single(y3, x4) | |
| z3 := i64.or(z3_1, t) | |
| let t_1, z2_1 := shl_single(y2, x4) | |
| z2 := i64.or(z2_1, r_1) | |
| let r_2, z1_1 := shl_single(y1, x4) | |
| z1 := i64.or(z1_1, t_1) | |
| } | |
| } | |
| } | |
| let _7, _8, _9, _10 := mload(_2, _2, _2, _5) | |
| let _11, _12, _13, _14 := div(_7, _8, _9, _10, z1, z2, z3, z4) | |
| let _15, _16, _17, _18 := staticcall(_2, _2, _2, eth.getGasLeft(), _11, _12, _13, _14, _2, _2, _2, 116, _2, _2, _2, 4, _2, _2, _2, _2, _2, _2, _2, _2) | |
| mstore(_2, _2, _2, _2, _15, _16, _17, _18) | |
| return(_2, _2, _2, _2, _2, _2, _2, 32) | |
| } | |
| function add_carry(x, y, c) -> r, r_c | |
| { | |
| let t := i64.add(x, y) | |
| r := i64.add(t, c) | |
| r_c := i64.extend_i32_u(i32.or(i64.lt_u(t, x), i64.lt_u(r, t))) | |
| } | |
| function add(x1, x2, x3, x4, y1, y2, y3, y4) -> r1, r2, r3, r4 | |
| { | |
| let t := i64.add(x4, y4) | |
| r4 := i64.add(t, 0) | |
| let r3_1, carry := add_carry(x3, y3, i64.extend_i32_u(i32.or(i64.lt_u(t, x4), i64.lt_u(r4, t)))) | |
| r3 := r3_1 | |
| let r2_1, carry_1 := add_carry(x2, y2, carry) | |
| r2 := r2_1 | |
| let r1_1, carry_2 := add_carry(x1, y1, carry_1) | |
| r1 := r1_1 | |
| } | |
| function sub(x1, x2, x3, x4, y1, y2, y3, y4) -> r1, r2, r3, r4 | |
| { | |
| let _1 := 0xffffffffffffffff | |
| let t := i64.add(x4, i64.xor(y4, _1)) | |
| r4 := i64.add(t, 1) | |
| let r3_1, carry := add_carry(x3, i64.xor(y3, _1), i64.extend_i32_u(i32.or(i64.lt_u(t, x4), i64.lt_u(r4, t)))) | |
| r3 := r3_1 | |
| let r2_1, carry_1 := add_carry(x2, i64.xor(y2, _1), carry) | |
| r2 := r2_1 | |
| let r1_1, carry_2 := add_carry(x1, i64.xor(y1, _1), carry_1) | |
| r1 := r1_1 | |
| } | |
| function shl_internal(amount, x1, x2, x3, x4) -> r1, r2, r3, r4 | |
| { | |
| let _1 := i64.sub(64, amount) | |
| r1 := i64.add(i64.shl(x1, amount), i64.shr_u(x2, _1)) | |
| r2 := i64.add(i64.shl(x2, amount), i64.shr_u(x3, _1)) | |
| r3 := i64.add(i64.shl(x3, amount), i64.shr_u(x4, _1)) | |
| r4 := i64.shl(x4, amount) | |
| } | |
| function shr_internal(amount, x1, x2, x3, x4) -> r1, r2, r3, r4 | |
| { | |
| let _1 := i64.sub(64, amount) | |
| r4 := i64.add(i64.shr_u(x4, amount), i64.shl(x3, _1)) | |
| r3 := i64.add(i64.shr_u(x3, amount), i64.shl(x2, _1)) | |
| r2 := i64.add(i64.shr_u(x2, amount), i64.shl(x1, _1)) | |
| r1 := i64.shr_u(x1, amount) | |
| } | |
| function div(x1, x2, x3, x4, y1, y2, y3, y4) -> r1, r2, r3, r4 | |
| { | |
| if i64.eqz(i64.or(i64.or(y1, y2), i64.or(y3, y4))) { leave } | |
| let m1 := 0 | |
| let m2 := m1 | |
| let m3 := m1 | |
| let m4 := 1 | |
| for { } true { } | |
| { | |
| if i32.or(i64.eqz(i64.clz(y1)), i32.eqz(lt_256x256_64(y1, y2, y3, y4, x1, x2, x3, x4))) { break } | |
| let y1_1, y2_1, y3_1, y4_1 := shl_internal(1, y1, y2, y3, y4) | |
| y1 := y1_1 | |
| y2 := y2_1 | |
| y3 := y3_1 | |
| y4 := y4_1 | |
| let m1_1, m2_1, m3_1, m4_1 := shl_internal(1, m1, m2, m3, m4) | |
| m1 := m1_1 | |
| m2 := m2_1 | |
| m3 := m3_1 | |
| m4 := m4_1 | |
| } | |
| for { } | |
| i32.eqz(i64.eqz(i64.or(i64.or(m1, m2), i64.or(m3, m4)))) | |
| { } | |
| { | |
| if i32.eqz(lt_256x256_64(x1, x2, x3, x4, y1, y2, y3, y4)) | |
| { | |
| let x1_1, x2_1, x3_1, x4_1 := sub(x1, x2, x3, x4, y1, y2, y3, y4) | |
| x1 := x1_1 | |
| x2 := x2_1 | |
| x3 := x3_1 | |
| x4 := x4_1 | |
| let r1_1, r2_1, r3_1, r4_1 := add(r1, r2, r3, r4, m1, m2, m3, m4) | |
| r1 := r1_1 | |
| r2 := r2_1 | |
| r3 := r3_1 | |
| r4 := r4_1 | |
| } | |
| let y1_2, y2_2, y3_2, y4_2 := shr_internal(1, y1, y2, y3, y4) | |
| y1 := y1_2 | |
| y2 := y2_2 | |
| y3 := y3_2 | |
| y4 := y4_2 | |
| let m1_2, m2_2, m3_2, m4_2 := shr_internal(1, m1, m2, m3, m4) | |
| m1 := m1_2 | |
| m2 := m2_2 | |
| m3 := m3_2 | |
| m4 := m4_2 | |
| } | |
| } | |
| function cmp(a, b) -> r:i32 | |
| { | |
| switch i64.lt_u(a, b) | |
| case 1:i32 { r := 0xffffffff:i32 } | |
| default { r := i64.ne(a, b) } | |
| } | |
| function lt_256x256_64(x1, x2, x3, x4, y1, y2, y3, y4) -> z:i32 | |
| { | |
| switch cmp(x1, y1) | |
| case 0:i32 { | |
| switch cmp(x2, y2) | |
| case 0:i32 { | |
| switch cmp(x3, y3) | |
| case 0:i32 { z := i64.lt_u(x4, y4) } | |
| case 1:i32 { z := 0:i32 } | |
| default { z := 1:i32 } | |
| } | |
| case 1:i32 { z := 0:i32 } | |
| default { z := 1:i32 } | |
| } | |
| case 1:i32 { z := 0:i32 } | |
| default { z := 1:i32 } | |
| } | |
| function shl_single(a, amount) -> x, y | |
| { | |
| x := i64.shr_u(a, i64.sub(64, amount)) | |
| y := i64.shl(a, amount) | |
| } | |
| function u256_to_i32(x1, x2, x3, x4) -> v:i32 | |
| { | |
| if i64.ne(0, i64.or(i64.or(x1, x2), x3)) { unreachable() } | |
| if i64.ne(0, i64.shr_u(x4, 32)) { unreachable() } | |
| v := i32.wrap_i64(x4) | |
| } | |
| function to_internal_i32ptr(x1, x2, x3, x4) -> r:i32 | |
| { | |
| let p:i32 := u256_to_i32(x1, x2, x3, x4) | |
| r := i32.add(p, 64:i32) | |
| if i32.lt_u(r, p) { unreachable() } | |
| } | |
| function endian_swap_16(x) -> y | |
| { | |
| y := i64.or(i64.and(i64.shl(x, 8), 0xff00), i64.and(i64.shr_u(x, 8), 0xff)) | |
| } | |
| function endian_swap_32(x) -> y | |
| { | |
| let hi := i64.shl(endian_swap_16(x), 16) | |
| y := i64.or(hi, endian_swap_16(i64.shr_u(x, 16))) | |
| } | |
| function endian_swap(x) -> y | |
| { | |
| let hi := i64.shl(endian_swap_32(x), 32) | |
| y := i64.or(hi, endian_swap_32(i64.shr_u(x, 32))) | |
| } | |
| function mload(x1, x2, x3, x4) -> z1, z2, z3, z4 | |
| { | |
| let _1:i32 := to_internal_i32ptr(x1, x2, x3, x4) | |
| let z1_1 := endian_swap(i64.load(_1)) | |
| let z2_1 := endian_swap(i64.load(i32.add(_1, 8:i32))) | |
| let z3_1 := endian_swap(i64.load(i32.add(_1, 16:i32))) | |
| let z4_1 := endian_swap(i64.load(i32.add(_1, 24:i32))) | |
| z1 := z1_1 | |
| z2 := z2_1 | |
| z3 := z3_1 | |
| z4 := z4_1 | |
| } | |
| function mstore(x1, x2, x3, x4, y1, y2, y3, y4) | |
| { | |
| mstore_internal(to_internal_i32ptr(x1, x2, x3, x4), y1, y2, y3, y4) | |
| } | |
| function mstore_internal(pos:i32, y1, y2, y3, y4) | |
| { | |
| i64.store(pos, endian_swap(y1)) | |
| i64.store(i32.add(pos, 8:i32), endian_swap(y2)) | |
| i64.store(i32.add(pos, 16:i32), endian_swap(y3)) | |
| i64.store(i32.add(pos, 24:i32), endian_swap(y4)) | |
| } | |
| function staticcall(a1, a2, a3, a4, b1, b2, b3, b4, c1, c2, c3, c4, d1, d2, d3, d4, e1, e2, e3, e4, f1, f2, f3, f4) -> x1, x2, x3, x4 | |
| { | |
| if i64.ne(0, b1) { unreachable() } | |
| if i64.ne(0, i64.shr_u(b2, 32)) { unreachable() } | |
| mstore_internal(0:i32, 0, b2, b3, b4) | |
| let _1:i32 := u256_to_i32(d1, d2, d3, d4) | |
| let _2:i32 := to_internal_i32ptr(c1, c2, c3, c4) | |
| if i64.ne(0, i64.or(i64.or(a1, a2), a3)) { unreachable() } | |
| x4 := i64.extend_i32_u(eth.callStatic(a4, 12:i32, _2, _1)) | |
| } | |
| function return(x1, x2, x3, x4, y1, y2, y3, y4) | |
| { | |
| eth.finish(to_internal_i32ptr(x1, x2, x3, x4), u256_to_i32(y1, y2, y3, y4)) | |
| } | |
| } | |
| } | |
| } | |
| Binary representation: | |
| 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| |
| Text representation: | |
| (module | |
| ;; sub-module "Runtime" will be encoded as custom section in binary here, but is skipped in text mode. | |
| (import "ethereum" "codeCopy" (func $eth.codeCopy (param i32 i32 i32))) | |
| (import "ethereum" "finish" (func $eth.finish (param i32 i32))) | |
| (memory $memory (export "memory") 1) | |
| (export "main" (func $main)) | |
| (func $main | |
| (local $_1 i64) | |
| (local $_2 i64) | |
| (local $_3 i64) | |
| (local $_4 i64) | |
| (local $p i64) | |
| (local $r i64) | |
| (local $_5 i64) | |
| (local $p_1 i64) | |
| (local $r_1 i64) | |
| (local.set $_1 (datasize "Runtime")) | |
| (local.set $_2 (i64.const 0)) | |
| (local.set $_3 (call $u256_to_i32 (local.get $_2) (local.get $_2) (local.get $_2) (local.get $_1))) | |
| (local.set $_4 (call $u256_to_i32 (local.get $_2) (local.get $_2) (local.get $_2) (dataoffset "Runtime"))) | |
| (local.set $p (call $u256_to_i32 (local.get $_2) (local.get $_2) (local.get $_2) (local.get $_2))) | |
| (local.set $r (i64.extend_i32_u (i32.add (i32.wrap_i64 (local.get $p)) (i32.wrap_i64 (i64.const 64))))) | |
| (if (i64.ne (i64.extend_i32_u (i32.lt_u (i32.wrap_i64 (local.get $r)) (i32.wrap_i64 (local.get $p)))) (i64.const 0)) (then | |
| (unreachable))) | |
| (call $eth.codeCopy (i32.wrap_i64 (local.get $r)) (i32.wrap_i64 (local.get $_4)) (i32.wrap_i64 (local.get $_3))) | |
| (local.set $_5 (call $u256_to_i32 (local.get $_2) (local.get $_2) (local.get $_2) (local.get $_1))) | |
| (local.set $p_1 (call $u256_to_i32 (local.get $_2) (local.get $_2) (local.get $_2) (local.get $_2))) | |
| (local.set $r_1 (i64.extend_i32_u (i32.add (i32.wrap_i64 (local.get $p_1)) (i32.wrap_i64 (i64.const 64))))) | |
| (if (i64.ne (i64.extend_i32_u (i32.lt_u (i32.wrap_i64 (local.get $r_1)) (i32.wrap_i64 (local.get $p_1)))) (i64.const 0)) (then | |
| (unreachable))) | |
| (call $eth.finish (i32.wrap_i64 (local.get $r_1)) (i32.wrap_i64 (local.get $_5))) | |
| ) | |
| (func $u256_to_i32 | |
| (param $x1 i64) | |
| (param $x2 i64) | |
| (param $x3 i64) | |
| (param $x4 i64) | |
| (result i64) | |
| (local $v i64) | |
| (if (i64.ne (i64.extend_i32_u (i64.ne (i64.const 0) (i64.or (i64.or (local.get $x1) (local.get $x2)) (local.get $x3)))) (i64.const 0)) (then | |
| (unreachable))) | |
| (if (i64.ne (i64.extend_i32_u (i64.ne (i64.const 0) (i64.shr_u (local.get $x4) (i64.const 32)))) (i64.const 0)) (then | |
| (unreachable))) | |
| (local.set $v (i64.extend_i32_u (i32.wrap_i64 (local.get $x4)))) | |
| (local.get $v) | |
| ) | |
| ) | |
| ======== wasm2wat ======= | |
| (module | |
| (type (;0;) (func)) | |
| (type (;1;) (func (param i64 i64 i64 i64) (result i64))) | |
| (type (;2;) (func (param i32 i32))) | |
| (type (;3;) (func (param i32 i32 i32))) | |
| (import "ethereum" "codeCopy" (func (;0;) (type 3))) | |
| (import "ethereum" "finish" (func (;1;) (type 2))) | |
| (func (;2;) (type 0) | |
| (local i64 i64 i64 i64 i64 i64 i64 i64 i64) | |
| i64.const 2412 | |
| local.set 0 | |
| i64.const 0 | |
| local.set 1 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| local.get 0 | |
| call 3 | |
| local.set 2 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| i64.const 117 | |
| call 3 | |
| local.set 3 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| call 3 | |
| local.set 4 | |
| local.get 4 | |
| i32.wrap_i64 | |
| i64.const 64 | |
| i32.wrap_i64 | |
| i32.add | |
| i64.extend_i32_u | |
| local.set 5 | |
| local.get 5 | |
| i32.wrap_i64 | |
| local.get 4 | |
| i32.wrap_i64 | |
| i32.lt_u | |
| i64.extend_i32_u | |
| i64.const 0 | |
| i64.ne | |
| if ;; label = @1 | |
| unreachable | |
| end | |
| local.get 5 | |
| i32.wrap_i64 | |
| local.get 3 | |
| i32.wrap_i64 | |
| local.get 2 | |
| i32.wrap_i64 | |
| call 0 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| local.get 0 | |
| call 3 | |
| local.set 6 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| local.get 1 | |
| call 3 | |
| local.set 7 | |
| local.get 7 | |
| i32.wrap_i64 | |
| i64.const 64 | |
| i32.wrap_i64 | |
| i32.add | |
| i64.extend_i32_u | |
| local.set 8 | |
| local.get 8 | |
| i32.wrap_i64 | |
| local.get 7 | |
| i32.wrap_i64 | |
| i32.lt_u | |
| i64.extend_i32_u | |
| i64.const 0 | |
| i64.ne | |
| if ;; label = @1 | |
| unreachable | |
| end | |
| local.get 8 | |
| i32.wrap_i64 | |
| local.get 6 | |
| i32.wrap_i64 | |
| call 1) | |
| (func (;3;) (type 1) (param i64 i64 i64 i64) (result i64) | |
| (local i64) | |
| i64.const 0 | |
| local.get 0 | |
| local.get 1 | |
| i64.or | |
| local.get 2 | |
| i64.or | |
| i64.ne | |
| i64.extend_i32_u | |
| i64.const 0 | |
| i64.ne | |
| if ;; label = @1 | |
| unreachable | |
| end | |
| i64.const 0 | |
| local.get 3 | |
| i64.const 32 | |
| i64.shr_u | |
| i64.ne | |
| i64.extend_i32_u | |
| i64.const 0 | |
| i64.ne | |
| if ;; label = @1 | |
| unreachable | |
| end | |
| local.get 3 | |
| i32.wrap_i64 | |
| i64.extend_i32_u | |
| local.set 4 | |
| local.get 4) | |
| (memory (;0;) 1) | |
| (export "memory" (memory 0)) | |
| (export "main" (func 2))) | |
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