--- /dev/null
+; RUN: llc -o - %s | FileCheck %s
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx"
+
+; selectiondag stack protector uses a GuardReg which the fast-isel stack
+; protection code did not but the state was not reset properly.
+; The optnone attribute on @bar forces fast-isel.
+
+; CHECK-LABEL: foo:
+; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip), %rax
+; CHECK-NOT: movq ___stack_chk_guard@GOTPCREL(%rip), %rax
+define void @foo() #0 {
+entry:
+ %_tags = alloca [3 x i32], align 4
+ ret void
+}
+
+; CHECK-LABEL: bar:
+; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip), %rax
+; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip), %rax
+define void @bar() #1 {
+entry:
+ %vt = alloca [2 x double], align 16
+ br i1 undef, label %cleanup.4091, label %for.cond.3850
+
+unreachable:
+ unreachable
+
+for.cond.3850:
+ br i1 undef, label %land.rhs.3853, label %land.end.3857
+
+land.rhs.3853:
+ br label %land.end.3857
+
+land.end.3857:
+ %0 = phi i1 [ false, %for.cond.3850 ], [ false, %land.rhs.3853 ]
+ br i1 %0, label %unreachable, label %unreachable
+
+cleanup.4091:
+ ret void
+}
+
+attributes #0 = { ssp }
+attributes #1 = { noinline optnone ssp }