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Deprecate suggestVectorSize in favor of suggestVectorLength

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The function returns the vector length, not the byte size of the vector or the bit size of individual elements. This distinction is very important and some usages of this function in the stdlib operated under these incorrect assumptions.
This commit is contained in:
Carl Åstholm
2023-12-19 22:21:03 +01:00
parent 781c3a985c
commit 59ac0d1eed
5 changed files with 28 additions and 28 deletions
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lib/std/unicode.zig
+6 -6
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@@ -202,7 +202,7 @@ pub fn utf8CountCodepoints(s: []const u8) !usize {
pub fn utf8ValidateSlice(input: []const u8) bool {
var remaining = input;
const chunk_len = std.simd.suggestVectorSize(u8) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u8) orelse 1;
const Chunk = @Vector(chunk_len, u8);
// Fast path. Check for and skip ASCII characters at the start of the input.
@@ -758,7 +758,7 @@ pub fn utf16leToUtf8Alloc(allocator: mem.Allocator, utf16le: []const u16) ![]u8
var remaining = utf16le;
if (builtin.zig_backend != .stage2_x86_64) {
const chunk_len = std.simd.suggestVectorSize(u16) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u16) orelse 1;
const Chunk = @Vector(chunk_len, u16);
// Fast path. Check for and encode ASCII characters at the start of the input.
@@ -801,7 +801,7 @@ pub fn utf16leToUtf8AllocZ(allocator: mem.Allocator, utf16le: []const u16) ![:0]
var remaining = utf16le;
if (builtin.zig_backend != .stage2_x86_64) {
const chunk_len = std.simd.suggestVectorSize(u16) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u16) orelse 1;
const Chunk = @Vector(chunk_len, u16);
// Fast path. Check for and encode ASCII characters at the start of the input.
@@ -842,7 +842,7 @@ pub fn utf16leToUtf8(utf8: []u8, utf16le: []const u16) !usize {
var remaining = utf16le;
if (builtin.zig_backend != .stage2_x86_64) {
const chunk_len = std.simd.suggestVectorSize(u16) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u16) orelse 1;
const Chunk = @Vector(chunk_len, u16);
// Fast path. Check for and encode ASCII characters at the start of the input.
@@ -941,7 +941,7 @@ pub fn utf8ToUtf16LeWithNull(allocator: mem.Allocator, utf8: []const u8) ![:0]u1
var remaining = utf8;
// Need support for std.simd.interlace
if (builtin.zig_backend != .stage2_x86_64 and comptime !builtin.cpu.arch.isMIPS()) {
const chunk_len = std.simd.suggestVectorSize(u8) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u8) orelse 1;
const Chunk = @Vector(chunk_len, u8);
// Fast path. Check for and encode ASCII characters at the start of the input.
@@ -986,7 +986,7 @@ pub fn utf8ToUtf16Le(utf16le: []u16, utf8: []const u8) !usize {
var remaining = utf8;
// Need support for std.simd.interlace
if (builtin.zig_backend != .stage2_x86_64 and comptime !builtin.cpu.arch.isMIPS()) {
const chunk_len = std.simd.suggestVectorSize(u8) orelse 1;
const chunk_len = std.simd.suggestVectorLength(u8) orelse 1;
const Chunk = @Vector(chunk_len, u8);
// Fast path. Check for and encode ASCII characters at the start of the input.