New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12783 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/cast-propagate.ll b/test/Transforms/InstCombine/cast-propagate.ll
new file mode 100644 (file)
index 0000000..bf1143d
--- /dev/null
+++ b/test/Transforms/InstCombine/cast-propagate.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < cast-propagate.ll | opt -instcombine -mem2reg | llvm-dis | not grep load
+
+int %test1(uint* %P) {
+       %A = alloca uint 
+       store uint 123, uint* %A
+       %Q = cast uint* %A to int*    ; Cast the result of the load not the source
+       %V = load int* %Q
+       ret int %V
+}