[PATCH] D36467: [ARM, FIX] ARMTargetLowering::isLegalAddressingMode can accept illegal addressing modes for Thumb1 target

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


================
Comment at: lib/Target/ARM/ARMISelLowering.cpp:12400
+  if (Subtarget->isThumb1Only()) {
+    return (AM.Scale == 1);
+  }
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Maybe `((unsigned)AM.HasBaseReg + Scale) <= 2`, like we use in other places?  It doesn't come up often, but it's easy to support.


https://reviews.llvm.org/D36467