It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/Andersens/arg-must-alias.ll b/test/Analysis/Andersens/arg-must-alias.ll
new file mode 100644
index 0000000..d19b381
--- /dev/null
+++ b/test/Analysis/Andersens/arg-must-alias.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -anders-aa -load-vn -gcse -deadargelim | llvm-dis | not grep ARG
+
+%G = internal constant int* null
+
+implementation
+
+internal int %internal(int* %ARG) {
+ ;; The 'Arg' argument must-aliases the null pointer, so it can be subsituted
+ ;; directly here, making it dead.
+ store int* %ARG, int** %G
+ ret int 0
+}
+
+int %foo() {
+ %V = call int %internal(int* null)
+ ret int %V
+}