Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/CodeGen/AArch64/arm64-stack-no-frame.ll

@@ -0,0 +1,20 @@
+; RUN: llc -mtriple=arm64-apple-ios7.0 -o - %s | FileCheck %s
+
+@global = global [20 x i64] zeroinitializer, align 8
+
+; The following function has enough locals to need some restoring, but not a
+; frame record. In an intermediate frame refactoring, prologue and epilogue were
+; inconsistent about how much to move SP.
+define void @test_stack_no_frame() {
+; CHECK: test_stack_no_frame
+; CHECK: sub sp, sp, #[[STACKSIZE:[0-9]+]]
+  %local = alloca [20 x i64]
+  %val = load volatile [20 x i64], [20 x i64]* @global, align 8
+  store volatile [20 x i64] %val, [20 x i64]* %local, align 8
+
+  %val2 = load volatile [20 x i64], [20 x i64]* %local, align 8
+  store volatile [20 x i64] %val2, [20 x i64]* @global, align 8
+
+; CHECK: add sp, sp, #[[STACKSIZE]]
+  ret void
+}