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[ewasm] Polyfill: Rename endian_swap -> bswap.

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This commit is contained in:
Alexander Arlt
2020-11-17 21:30:06 -05:00
parent 1e08e4e04c
commit c0d28492c3
5 changed files with 81 additions and 81 deletions
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libyul/backends/wasm/polyfill/Conversion.yul
+7 -7
View File
@@ -59,20 +59,20 @@ function u256_to_address(x1, x2, x3, x4) -> r1, r2, r3 {
r3 := x4
}
function endian_swap_16(x) -> y {
function bswap16(x) -> y {
let hi := i64.and(i64.shl(x, 8), 0xff00)
let lo := i64.and(i64.shr_u(x, 8), 0xff)
y := i64.or(hi, lo)
}
function endian_swap_32(x) -> y {
let hi := i64.shl(endian_swap_16(x), 16)
let lo := endian_swap_16(i64.shr_u(x, 16))
function bswap32(x) -> y {
let hi := i64.shl(bswap16(x), 16)
let lo := bswap16(i64.shr_u(x, 16))
y := i64.or(hi, lo)
}
function endian_swap(x) -> y {
let hi := i64.shl(endian_swap_32(x), 32)
let lo := endian_swap_32(i64.shr_u(x, 32))
function bswap64(x) -> y {
let hi := i64.shl(bswap32(x), 32)
let lo := bswap32(i64.shr_u(x, 32))
y := i64.or(hi, lo)
}
libyul/backends/wasm/polyfill/Interface.yul
+8 -8
View File
@@ -161,10 +161,10 @@ function mload(x1, x2, x3, x4) -> z1, z2, z3, z4 {
}
function mload_internal(pos:i32) -> z1, z2, z3, z4 {
z1 := endian_swap(i64.load(pos))
z2 := endian_swap(i64.load(i32.add(pos, 8:i32)))
z3 := endian_swap(i64.load(i32.add(pos, 16:i32)))
z4 := endian_swap(i64.load(i32.add(pos, 24:i32)))
z1 := bswap64(i64.load(pos))
z2 := bswap64(i64.load(i32.add(pos, 8:i32)))
z3 := bswap64(i64.load(i32.add(pos, 16:i32)))
z4 := bswap64(i64.load(i32.add(pos, 24:i32)))
}
function mstore(x1, x2, x3, x4, y1, y2, y3, y4) {
@@ -172,10 +172,10 @@ function mstore(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))
i64.store(pos, bswap64(y1))
i64.store(i32.add(pos, 8:i32), bswap64(y2))
i64.store(i32.add(pos, 16:i32), bswap64(y3))
i64.store(i32.add(pos, 24:i32), bswap64(y4))
}
function mstore_address(pos:i32, a1, a2, a3, a4) {