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/Transforms/Reassociate/basictest.ll b/test/Transforms/Reassociate/basictest.ll
new file mode 100644
index 0000000..a7ff84a
--- /dev/null
+++ b/test/Transforms/Reassociate/basictest.ll
@@ -0,0 +1,9 @@
+; With reassociation, constant folding can eliminate the 12 and -12 constants.
+;
+; RUN: llvm-upgrade < %s | llvm-as | opt -reassociate -constprop -instcombine -die | llvm-dis | not grep add
+
+int %test(int %arg) {
+ %tmp1 = sub int -12, %arg
+ %tmp2 = add int %tmp1, 12
+ ret int %tmp2
+}