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std.simd: Increase branch quota in suggestVectorLengthForCpu()

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This does a bunch of CPU family and feature checks. It would be annoying to have
to @setEvalBranchQuota() at every comptime use site.
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Alex Rønne Petersen 2025-06-30 06:56:43 +02:00
parent 197fb26da0
commit b64fe53ad5
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lib/std/simd.zig
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@ -9,6 +9,8 @@ const std = @import("std");
const builtin = @import("builtin");
pub fn suggestVectorLengthForCpu(comptime T: type, comptime cpu: std.Target.Cpu) ?comptime_int {
@setEvalBranchQuota(2_000);
// This is guesswork, if you have better suggestions can add it or edit the current here
const element_bit_size = @max(8, std.math.ceilPowerOfTwo(u16, @bitSizeOf(T)) catch unreachable);
const vector_bit_size: u16 = blk: {