[llvm] [GlobalIsel] Import GEP flags (PR #93850)

[Thorsten Schütt via llvm-commits]

================
@@ -24,6 +24,9 @@ namespace llvm {
 
 /// A base class for all GenericMachineInstrs.
 class GenericMachineInstr : public MachineInstr {
+  constexpr static int PoisonFlags = NoUWrap | NoSWrap | NoUSWrap | IsExact |
----------------
tschuett wrote:

I would prefer to not leak GlobalIsel details into MachineInstr.

https://github.com/llvm/llvm-project/pull/93850