Combine an unaligned store of unaligned load into a memmove.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75908 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/XCore/unaligned_store_combine.ll

@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=xcore > %t1.s
+; RUN: grep "bl memmove" %t1.s | count 1
+; RUN: grep "ldc r., 8" %t1.s | count 1
+
+; Unaligned load / store pair. Should be combined into a memmove
+; of size 8
+define void @f(i64* %dst, i64* %src) nounwind {
+entry:
+	%0 = load i64* %src, align 1
+	store i64 %0, i64* %dst, align 1
+	ret void
+}