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12 lines
345 B
12 lines
345 B
7 months ago
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Regression check for optimizing simplify instruction pass.
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A pair (sub, neg) should not be transforemd to (sub) for
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fp calculation because we can lose the sign of zero for
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the following expression:
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- ( A - B ) != B - A ; if B == A
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Addition or subtraction with fp zero should not be eliminated
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because:
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-0.0 + 0.0 = 0.0
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-0.0 - -0.0 = 0.0
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