new testcase for a -basicaa bug that Alkis found with Java.

llvm-svn: 20530

1 files changed, 14 insertions, 0 deletions

diff --git a/llvm/test/Regression/Analysis/BasicAA/2005-03-09-BrokenBasicAA.ll b/llvm/test/Regression/Analysis/BasicAA/2005-03-09-BrokenBasicAA.ll
new file mode 100644
index 00000000000..75601432071
--- /dev/null
+++ b/llvm/test/Regression/Analysis/BasicAA/2005-03-09-BrokenBasicAA.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | grep 'load int\* %A'
+
+declare double* %useit(int*)
+
+int %foo(uint %Amt) {
+	%A = malloc int, uint %Amt
+	%P = call double*  %useit(int* %A)
+
+	%X = load int* %A
+	store double 0.0, double* %P
+	%Y = load int* %A
+	%Z = sub int %X, %Y
+	ret int %Z
+}