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[vm] Disable inlining of _StringBase._createOneByteString
If _StringBase._createOneByteString is inlined it becomes much slower due to https://github.com/dart-lang/sdk/issues/37800. This workaround improves Base64Encoder benchmark on ia32 in bytecode mode: Base64Encoder(RunTime): 63.31 -> 46.7 us. Issue: https://github.com/dart-lang/sdk/issues/37800 Change-Id: Ibcf5dc7bfd25bac0bd61a9dcb196c553c82f3dc1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112647 Reviewed-by: Aart Bik <ajcbik@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
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@ -219,6 +219,8 @@ abstract class _StringBase implements String {
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return createFromCharCodes(charCodeList, 0, length, bits);
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}
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// Inlining is disabled as a workaround to http://dartbug.com/37800.
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@pragma("vm:never-inline")
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static String _createOneByteString(List<int> charCodes, int start, int len) {
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// It's always faster to do this in Dart than to call into the runtime.
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var s = _OneByteString._allocate(len);
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