Add testcase for PR3168. It was fixed over time.

PR3168

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193152 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/GC/ocaml-gc-assert.ll b/test/CodeGen/X86/GC/ocaml-gc-assert.ll
new file mode 100644 (file)
index 0000000..b32ceca
--- /dev/null
+++ b/test/CodeGen/X86/GC/ocaml-gc-assert.ll
@@ -0,0 +1,21 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
+; PR3168
+
+; CHECK-LABEL: append
+
+define i32* @append() gc "ocaml" {
+entry:
+  switch i32 0, label %L2 [i32 0, label %L1]
+L1:
+  %var8 = alloca i8*
+  call void @llvm.gcroot(i8** %var8,i8* null)
+  br label %L3
+L2:
+  call ccc void @oread_runtime_casenotcovered()
+  unreachable
+L3:
+  ret i32* null
+}
+
+declare ccc void @oread_runtime_casenotcovered()
+declare void @llvm.gcroot(i8**,i8*)