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authorDuncan Sands <baldrick@free.fr>2007-09-20 18:56:24 +0000
committerDuncan Sands <baldrick@free.fr>2007-09-20 18:56:24 +0000
commitd7944ca61cbe6126a8e649439488fdad7dc0d529 (patch)
tree455ad890eb3db3cce835730bd6c058bea747264a
parentb7c801720823e0691602c2b68ceaea26e75af4fc (diff)
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Testcase for PR1678.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42171 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--test/Transforms/InstCombine/2007-09-17-AliasConstFold2.ll14
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..300edd5
--- /dev/null
+++ b/test/Transforms/InstCombine/2007-09-17-AliasConstFold2.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | 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
+}