[SOL][BPF] Allow misaligned loads (anza-xyz#7)

Co-authored-by: Jack May <jack@solana.com>
dmakarov · May 16, 2021 · faf6ee2 · faf6ee2
1 parent 4a40a94
commit faf6ee2
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/llvm/lib/Target/BPF/BPFISelLowering.cpp b/llvm/lib/Target/BPF/BPFISelLowering.cpp
@@ -159,7 +159,13 @@ BPFTargetLowering::BPFTargetLowering(const TargetMachine &TM,
 }
 
 bool BPFTargetLowering::allowsMisalignedMemoryAccesses(
-    EVT VT, unsigned, unsigned, MachineMemOperand::Flags, bool *) const {
+    EVT VT, unsigned, unsigned, MachineMemOperand::Flags, bool *Fast) const {
+  if (!VT.isSimple()) {
+    return false;
+  }
+  if (Fast) {
+    *Fast = true;
+  }
   return true;
 }