testcase reduced from Ptrdist/bc that is miscompiled by recent instcombine changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26151 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll b/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
new file mode 100644 (file)
index 0000000..f070338
--- /dev/null
+++ b/test/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output &&
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep undef
+
+int %test(sbyte %A) {
+       %B = cast sbyte %A to int
+       %C = shr int %B, ubyte 8
+       ret int %C
+}
+