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

[Sergei Barannikov via llvm-commits]

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@@ -576,6 +576,11 @@ uint32_t MachineInstr::copyFlagsFromInstruction(const Instruction &I) {
       MIFlags |= MachineInstr::MIFlag::NoSWrap;
     if (TI->hasNoUnsignedWrap())
       MIFlags |= MachineInstr::MIFlag::NoUWrap;
+  } else if (const GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(&I)) {
+    if (GEP->hasNoUnsignedSignedWrap())
+      MIFlags |= MachineInstr::MIFlag::NoSWrap;
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s-barannikov wrote:

I've read the RFC and I got an impression that nsw and nusw are different.
CC @nikic 


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