add byval test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41123 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/byval.ll b/test/CodeGen/X86/byval.ll
new file mode 100644 (file)
index 0000000..7c0aeb8
--- /dev/null
+++ b/test/CodeGen/X86/byval.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep movq.*8.*rsp.*rax
+
+%struct.s = type { i64, i64, i64 }
+
+define i64 @f(%struct.s* byval %a) {
+entry:
+       %tmp2 = getelementptr %struct.s* %a, i32 0, i32 0
+       %tmp3 = load i64* %tmp2, align 8
+       ret i64 %tmp3
+}