[llvm] [X86][GlobalISel] - Legalize And Select of G_FPTOSI/G_SITOFP in X87 mode (PR #137377)

[Matt Arsenault via llvm-commits]

================
@@ -355,6 +357,15 @@ bool X86InstructionSelector::selectCopy(MachineInstr &I,
   return true;
 }
 
+bool X86InstructionSelector::checkMemoryOpSize(const MachineInstr &MI,
+                                               unsigned NumBytes) const {
+  if (!MI.mayLoadOrStore())
+    return false;
+  assert(MI.hasOneMemOperand() &&
+         "Expected load/store to have only one mem op!");
----------------
arsenm wrote:

In the use context I would expect MI.mayLoadOrStore to be implied 

https://github.com/llvm/llvm-project/pull/137377