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diff test/Transforms/InstCombine/2002-08-02-CastTest.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/Transforms/InstCombine/2002-08-02-CastTest.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,11 @@
+; This testcase is incorrectly getting completely eliminated.  There should be
+; SOME instruction named %c here, even if it's a bitwise and.
+;
+; RUN: opt < %s -instcombine -S | grep %c
+;
+define i64 @test3(i64 %A) {
+        %c1 = trunc i64 %A to i8                ; <i8> [#uses=1]
+        %c2 = zext i8 %c1 to i64                ; <i64> [#uses=1]
+        ret i64 %c2
+}
+