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/SimplifyCFG/EqualPHIEdgeBlockMerge.ll b/test/Transforms/SimplifyCFG/EqualPHIEdgeBlockMerge.ll
new file mode 100644
index 0000000..3c1f141
--- /dev/null
+++ b/test/Transforms/SimplifyCFG/EqualPHIEdgeBlockMerge.ll
@@ -0,0 +1,18 @@
+; Test merging of blocks with phi nodes.
+;
+; RUN: llvm-upgrade < %s | llvm-as | opt -simplifycfg | llvm-dis | not grep N:
+;
+
+int %test(bool %a) {
+Q:
+ br bool %a, label %N, label %M
+N:
+ br label %M
+M:
+ ; It's ok to merge N and M because the incoming values for W are the
+ ; same for both cases...
+ %W = phi int [2, %N], [2, %Q]
+ %R = add int %W, 1
+ ret int %R
+}
+