1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2007-09-17-AliasConstFold2.ll b/test/Transforms/InstCombine/2007-09-17-AliasConstFold2.ll
new file mode 100644
index 0000000..23ee12b
--- /dev/null
+++ b/test/Transforms/InstCombine/2007-09-17-AliasConstFold2.ll
@@ -0,0 +1,14 @@
+; RUN: opt < %s -instcombine -S | grep icmp
+; PR1678
+
+@A = alias weak void ()* @B		; <void ()*> [#uses=1]
+
+declare extern_weak void @B()
+
+define i32 @active() {
+entry:
+	%"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
+	%tmp1 = icmp ne void ()* @A, null		; <i1> [#uses=1]
+	%tmp12 = zext i1 %tmp1 to i32		; <i32> [#uses=1]
+	ret i32 %tmp12
+}