Should be this way in a perfect world. But this reminds me of the Pascal compiler on the IBM PC-RT (RS-6000 predecessor), which produced correct results on opt level 0, incorrect results on opt level 1 and a crashing program on opt level 2. We stopped trying to use this machine and waited for the RS-6000; the RS-6000 Pascal was OK.
Kind regards Bernd Am 21.07.2013 23:03, schrieb John Gilmore:
What is not "in the compiler's and optimizer's discretion" is to produce different final numerical or string results for different levels of optimization.
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