New testcase that basicaa should be able to handle

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8614 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/BasicAA/2003-09-19-LocalArgument.ll b/test/Analysis/BasicAA/2003-09-19-LocalArgument.ll
new file mode 100644 (file)
index 0000000..90f7172
--- /dev/null
+++ b/test/Analysis/BasicAA/2003-09-19-LocalArgument.ll
@@ -0,0 +1,12 @@
+; In this test, a local alloca cannot alias an incoming argument.
+
+; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | not grep sub
+
+int %test(int* %P) {
+       %X = alloca int
+       %V1 = load int* %P
+       store int 0, int* %X
+       %V2 = load int* %P
+       %Diff = sub int %V1, %V2
+       ret int %Diff
+}

diff --git a/test/Transforms/BasicAA/2003-09-19-LocalArgument.ll b/test/Transforms/BasicAA/2003-09-19-LocalArgument.ll
new file mode 100644 (file)
index 0000000..90f7172
--- /dev/null
+++ b/test/Transforms/BasicAA/2003-09-19-LocalArgument.ll
@@ -0,0 +1,12 @@
+; In this test, a local alloca cannot alias an incoming argument.
+
+; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | not grep sub
+
+int %test(int* %P) {
+       %X = alloca int
+       %V1 = load int* %P
+       store int 0, int* %X
+       %V2 = load int* %P
+       %Diff = sub int %V1, %V2
+       ret int %Diff
+}