Add a test for the load/store alignment.

llvm-svn: 40687

llvm/test/CFrontend/2007-08-01-LoadStoreAlign.c

@@ -0,0 +1,17 @@
+// RUN: %llvmgcc -O3 -S -o - -emit-llvm %s | grep -c {align 1} | grep 2
+// RUN: %llvmgcc -O3 -S -o - -emit-llvm %s | llvm-as | llc
+
+struct p {
+  char a;
+  int b;
+} __attribute__ ((packed));
+
+struct p t = { 1, 10 };
+struct p u;
+
+int main () {
+  int tmp = t.b;
+  u.b = tmp;
+  return tmp;
+
+}