Add another variant of the testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12834 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/LoadVN/dependent_loads.ll b/test/Analysis/LoadVN/dependent_loads.ll
index 97c6e95496ea5437675e612b4b699c15a9f8f19b..959628f4d63c1e3ae6368c7cbc3b44d3a83684f6 100644 (file)
--- a/test/Analysis/LoadVN/dependent_loads.ll
+++ b/test/Analysis/LoadVN/dependent_loads.ll
@@ -1,5 +1,7 @@
 ; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | not grep sub
 
+%S = type { int, sbyte }
+
 sbyte %test(sbyte** %P) {
        %A = load sbyte** %P
        %B = load sbyte* %A
@@ -10,3 +12,16 @@ sbyte %test(sbyte** %P) {
        %R = sub sbyte %B, %Y
        ret sbyte %R
 }
+
+sbyte %test(%S ** %P) {
+       %A = load %S** %P
+       %B = getelementptr %S* %A, int 0, ubyte 1
+       %C = load sbyte* %B
+
+       %X = load %S** %P
+       %Y = getelementptr %S* %X, int 0, ubyte 1
+       %Z = load sbyte* %Y
+
+       %R = sub sbyte %C, %Z
+       ret sbyte %R
+}