[PATCH] D51030: [AArch64] Optimise load(adr address) to ldr address

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: lib/Target/AArch64/AArch64InstrInfo.td:1896
+def alignedload : PatFrag<(ops node:$ptr), (load node:$ptr), [{
+  return cast<LoadSDNode>(N)->getAlignment() >= 4;
+}]>;
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Checking the alignment of the load isn't going to do the right thing in general; you need to check that the global is aligned.  (Normally, a misaligned load is UB, but this would turn it into a link error.)


https://reviews.llvm.org/D51030