bump modernc.org/sqlite to v1.35.0-concurrency-workaround (#3797)

vendor/modernc.org/libc/builtin64.go

@@ -0,0 +1,24 @@
+// Copyright 2024 The Libc Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && (amd64 || arm64 || loong64 || ppc64le || s390x || riscv64)
+
+package libc // import "modernc.org/libc"
+
+import (
+	mbits "math/bits"
+)
+
+func X__builtin_ctzl(tls *TLS, x ulong) int32 {
+	return int32(mbits.TrailingZeros64(x))
+}
+
+func X__builtin_clzl(t *TLS, n ulong) int32 {
+	return int32(mbits.LeadingZeros64(n))
+}
+
+// int __builtin_popcountl (unsigned long x)
+func X__builtin_popcountl(t *TLS, x ulong) int32 {
+	return int32(mbits.OnesCount64(x))
+}