New testcase to make sure not instructions get combined

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2492 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/not.ll b/test/Transforms/InstCombine/not.ll
new file mode 100644 (file)
index 0000000..658afff
--- /dev/null
+++ b/test/Transforms/InstCombine/not.ll
@@ -0,0 +1,16 @@
+; This test makes sure that these instructions are properly eliminated.
+;
+
+; RUN: if as < %s | opt -instcombine -dce | dis | grep not
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+implementation
+
+int "test1"(int %A) {
+       %B = not int %A
+       %C = not int %B
+       ret int %C
+}
+