================
@@ -2888,7 +2888,9 @@ inline bool DoShift(InterpState &S, CodePtr OpPC, LT
&LHS, RT &RHS,
S.CCEDiag(Loc, diag::note_constexpr_negative_shift) << RHS.toAPSInt();
if (!S.noteUndefinedBehavior())
return false;
- RHS = -RHS;
+
+ RHS = RHS.isMin() ? RT(APSInt::getMaxValue(RHS.bitWidth(), false)) : -RHS;
----------------
tbaederr wrote:
Does `RT::max()` not work?
https://github.com/llvm/llvm-project/pull/176390
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