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/CFrontend/2003-11-04-EmptyStruct.c b/test/CFrontend/2003-11-04-EmptyStruct.c
new file mode 100644
index 0000000..c7a0164
--- /dev/null
+++ b/test/CFrontend/2003-11-04-EmptyStruct.c
@@ -0,0 +1,6 @@
+// RUN: %llvmgcc -S %s -o - | llvm-as -f -o /dev/null
+
+typedef struct { } rwlock_t;
+struct fs_struct { rwlock_t lock; int umask; };
+void __copy_fs_struct(struct fs_struct *fs) { fs->lock = (rwlock_t) { }; }
+