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/CodeGen/PowerPC/mem_update.ll b/test/CodeGen/PowerPC/mem_update.ll
new file mode 100644
index 0000000..4d3ebe9
--- /dev/null
+++ b/test/CodeGen/PowerPC/mem_update.ll
@@ -0,0 +1,68 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=ppc32 -enable-ppc-preinc | \
+; RUN:   not grep addi
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=ppc64 -enable-ppc-preinc | \
+; RUN:   not grep addi
+%Glob = global ulong 4
+
+int *%test0(int *%X,  int *%dest) {
+	%Y = getelementptr int* %X, int 4
+	%A = load int* %Y
+	store int %A, int* %dest
+	ret int* %Y
+}
+
+int *%test1(int *%X,  int *%dest) {
+	%Y = getelementptr int* %X, int 4
+	%A = load int* %Y
+	store int %A, int* %dest
+	ret int* %Y
+}
+
+short *%test2(short *%X, int *%dest) {
+	%Y = getelementptr short* %X, int 4
+	%A = load short* %Y
+	%B = cast short %A to int
+	store int %B, int* %dest
+	ret short* %Y
+}
+
+ushort *%test3(ushort *%X, int *%dest) {
+	%Y = getelementptr ushort* %X, int 4
+	%A = load ushort* %Y
+	%B = cast ushort %A to int
+	store int %B, int* %dest
+	ret ushort* %Y
+}
+
+short *%test3a(short *%X, long *%dest) {
+	%Y = getelementptr short* %X, int 4
+	%A = load short* %Y
+	%B = cast short %A to long
+	store long %B, long* %dest
+	ret short* %Y
+}
+
+long *%test4(long *%X, long *%dest) {
+	%Y = getelementptr long* %X, int 4
+	%A = load long* %Y
+	store long %A, long* %dest
+	ret long* %Y
+}
+
+ushort *%test5(ushort *%X) {
+	%Y = getelementptr ushort* %X, int 4
+	store ushort 7, ushort* %Y
+	ret ushort* %Y
+}
+
+ulong *%test6(ulong *%X, ulong %A) {
+	%Y = getelementptr ulong* %X, int 4
+	store ulong %A, ulong* %Y
+	ret ulong* %Y
+}
+
+ulong *%test7(ulong *%X, ulong %A) {
+	store ulong %A, ulong* %Glob
+	ret ulong *%Glob
+}
+