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Simon Marlow authored
This reverts commit 546f24e4. And adds a fix for Windows: we need to use __builtin_clzll() rather than __builtin_clzl(), because StgWord is unsigned long long on Windows.
5f8c0b84
This reverts commit 546f24e4. And adds a fix for Windows: we need to use __builtin_clzll() rather than __builtin_clzl(), because StgWord is unsigned long long on Windows.