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Suppressing MSVC warnings; patch thanks to Peng Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176193 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -258,7 +258,10 @@ inline unsigned CountTrailingZeros_32(uint32_t Value) {
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4, 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9,
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5, 20, 8, 19, 18
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};
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return Mod37BitPosition[(-Value & Value) % 37];
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// Replace "-Value" by "1+~Value" in the following commented code to avoid
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// MSVC warning C4146
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// return Mod37BitPosition[(-Value & Value) % 37];
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return Mod37BitPosition[((1 + ~Value) & Value) % 37];
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#endif
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}
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@ -285,7 +288,10 @@ inline unsigned CountTrailingZeros_64(uint64_t Value) {
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29, 50, 43, 46, 31, 37, 21, 57, 52, 8, 26, 49, 45, 36, 56,
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7, 48, 35, 6, 34, 33, 0
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};
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return Mod67Position[(-Value & Value) % 67];
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// Replace "-Value" by "1+~Value" in the following commented code to avoid
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// MSVC warning C4146
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// return Mod67Position[(-Value & Value) % 67];
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return Mod67Position[((1 + ~Value) & Value) % 67];
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#endif
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}
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@ -420,7 +426,11 @@ int IsInf(double d);
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/// alignment that may be assumed after adding the two together.
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inline uint64_t MinAlign(uint64_t A, uint64_t B) {
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// The largest power of 2 that divides both A and B.
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return (A | B) & -(A | B);
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//
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// Replace "-Value" by "1+~Value" in the following commented code to avoid
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// MSVC warning C4146
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// return (A | B) & -(A | B);
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return (A | B) & (1 + ~(A | B));
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}
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/// NextPowerOf2 - Returns the next power of two (in 64-bits)
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