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/2005-03-05-OffsetOfHack.c b/test/CFrontend/2005-03-05-OffsetOfHack.c
new file mode 100644
index 0000000..8df7231
--- /dev/null
+++ b/test/CFrontend/2005-03-05-OffsetOfHack.c
@@ -0,0 +1,12 @@
+// RUN: %llvmgcc %s -S -o -
+
+struct s {
+ unsigned long int field[0];
+};
+
+#define OFFS \
+ (((char *) &((struct s *) 0)->field[0]) - (char *) 0)
+
+int foo[OFFS];
+
+