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2012-10-01 Robert Dewar <dewar@adacore.com> * checks.adb (Minimize_Eliminate_Overflow_Checks): Changes for exponentiation. * exp_ch4.adb (Expand_N_Op_Expon): Changes for Minimize/Eliminate overflow checks. * s-bignum.adb (Compare): Fix bad precondition. 2012-10-01 Ed Schonberg <schonberg@adacore.com> * sem_ch3.adb (Build_Derived_Record_Type): If the derived type has new discriminantss that constrain inherited ones, use the discriminant type in the original declaration to check for conformance, because in the presence of array components with a smaller range that are constrained by the origina discriminant, the compiler will have created a narrower subtype for that discriminant. From-SVN: r191919
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