1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/memcpy.ll b/test/CodeGen/X86/memcpy.ll
new file mode 100644
index 0000000..24530cd
--- /dev/null
+++ b/test/CodeGen/X86/memcpy.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -march=x86-64 | grep call.*memcpy | count 2
+
+declare void @llvm.memcpy.i64(i8*, i8*, i64, i32)
+
+define i8* @my_memcpy(i8* %a, i8* %b, i64 %n) {
+entry:
+	tail call void @llvm.memcpy.i64( i8* %a, i8* %b, i64 %n, i32 1 )
+	ret i8* %a
+}
+
+define i8* @my_memcpy2(i64* %a, i64* %b, i64 %n) {
+entry:
+	%tmp14 = bitcast i64* %a to i8*
+	%tmp25 = bitcast i64* %b to i8*
+	tail call void @llvm.memcpy.i64(i8* %tmp14, i8* %tmp25, i64 %n, i32 8 )
+	ret i8* %tmp14
+}