X86: Correct how the hi portion of a product is computed.
--HG-- extra : convert_revision : 1f503e1cae0374e62e6254e8073e903adc29d067
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1 changed files with 2 additions and 2 deletions
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@ -463,8 +463,8 @@ let {{
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uint64_t psrc2_h = op2 >> halfSize;
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uint64_t psrc2_h = op2 >> halfSize;
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uint64_t psrc2_l = op2 & mask(halfSize);
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uint64_t psrc2_l = op2 & mask(halfSize);
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uint64_t result =
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uint64_t result =
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((psrc1_l * psrc2_h) >> halfSize) +
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((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
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((psrc1_h * psrc2_l) >> halfSize) +
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((psrc1_l * psrc2_l) >> halfSize)) >> halfSize) +
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psrc1_h * psrc2_h;
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psrc1_h * psrc2_h;
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DestReg = merge(DestReg, result, dataSize);
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DestReg = merge(DestReg, result, dataSize);
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'''
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'''
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