1 files changed, 31 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/unpack-fca.ll b/test/Transforms/InstCombine/unpack-fca.ll
new file mode 100644
index 0000000..5f63330
--- /dev/null
+++ b/test/Transforms/InstCombine/unpack-fca.ll
@@ -0,0 +1,31 @@
+; RUN: opt -instcombine -S < %s | FileCheck %s
+
+target datalayout = "e-i64:64-f80:128-n8:16:32:64"
+target triple = "x86_64-unknown-linux-gnu"
+
+%A__vtbl = type { i8*, i32 (%A*)* }
+%A = type { %A__vtbl* }
+
+@A__vtblZ = constant %A__vtbl { i8* null, i32 (%A*)* @A.foo }
+
+declare i32 @A.foo(%A* nocapture %this)
+
+declare i8* @allocmemory(i64)
+
+define void @structA() {
+body:
+  %0 = tail call i8* @allocmemory(i64 32)
+  %1 = bitcast i8* %0 to %A*
+; CHECK: store %A__vtbl* @A__vtblZ
+  store %A { %A__vtbl* @A__vtblZ }, %A* %1, align 8
+  ret void
+}
+
+define void @structOfA() {
+body:
+  %0 = tail call i8* @allocmemory(i64 32)
+  %1 = bitcast i8* %0 to { %A }*
+; CHECK: store %A__vtbl* @A__vtblZ
+  store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %1, align 8
+  ret void
+}