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Re:GCC x86 Performance Hints (2012) by cozzyd on Friday August 21, 2020 @04:29PM (#24238571)
It's also possible someone may prefer the 80-bit intermediate precision of the x87 registers. I guess.
Re:GCC x86 Performance Hints (2012) by jcranmer on Friday August 21, 2020 @06:01PM (#24239331)
long double in either x87 or SSE mode will force the use of 80-bit fp values.