Fix negative shift left reported by UBSan #757
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This shall have no performance impact on 2’s complement machine where the compiler replaces the multiplication by power of two (constant) by a left shift. Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
mayeut
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Follow-up of uclouvain#757 This shall have no performance impact on 2’s complement machine where the compiler replaces the multiplication by power of two (constant) by a left shift. Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
mayeut
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Follow-up of #757 This shall have no performance impact on 2’s complement machine where the compiler replaces the multiplication by power of two (constant) by a left shift. Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
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As @boxerab said, this shall have no performance impact on 2’s complement machine where
the compiler generates a left shift instruction for the signed multiplication by a positive constant power of two.
Verified at least on MacOS Xcode 7.3, same assembly generated after fix.
Update #718