New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5857 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/BasicAA/2003-04-22-GEPProblem.ll b/test/Analysis/BasicAA/2003-04-22-GEPProblem.ll
new file mode 100644 (file)
index 0000000..27ec9ea
--- /dev/null
+++ b/test/Analysis/BasicAA/2003-04-22-GEPProblem.ll
@@ -0,0 +1,15 @@
+; RUN: as < %s | opt -load-vn -gcse -instcombine | dis | grep sub
+
+; BasicAA was incorrectly concluding that P1 and P2 didn't conflict!
+
+int %test(int *%Ptr, long %V) {
+       %P2 = getelementptr int* %Ptr, long 1
+       %P1 = getelementptr int* %Ptr, long %V
+       %X = load int* %P1
+       store int 5, int* %P2
+
+       %Y = load int* %P1
+
+       %Z = sub int %X, %Y
+       ret int %Z
+}

diff --git a/test/Transforms/BasicAA/2003-04-22-GEPProblem.ll b/test/Transforms/BasicAA/2003-04-22-GEPProblem.ll
new file mode 100644 (file)
index 0000000..27ec9ea
--- /dev/null
+++ b/test/Transforms/BasicAA/2003-04-22-GEPProblem.ll
@@ -0,0 +1,15 @@
+; RUN: as < %s | opt -load-vn -gcse -instcombine | dis | grep sub
+
+; BasicAA was incorrectly concluding that P1 and P2 didn't conflict!
+
+int %test(int *%Ptr, long %V) {
+       %P2 = getelementptr int* %Ptr, long 1
+       %P1 = getelementptr int* %Ptr, long %V
+       %X = load int* %P1
+       store int 5, int* %P2
+
+       %Y = load int* %P1
+
+       %Z = sub int %X, %Y
+       ret int %Z
+}