Fix a bug in InstCombine where we would incorrectly attempt to construct a
bitcast between pointers of two different address spaces if they happened to have
the same pointer size.
llvm-svn: 203862
diff --git a/llvm/test/Transforms/InstCombine/load-addrspace-cast.ll b/llvm/test/Transforms/InstCombine/load-addrspace-cast.ll
new file mode 100644
index 0000000..fd6339c
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/load-addrspace-cast.ll
@@ -0,0 +1,12 @@
+; RUN: opt -instcombine -S < %s | FileCheck %s
+target datalayout = "e-p:64:64:64-n8:16:32:64"
+
+define i32* @pointer_to_addrspace_pointer(i32 addrspace(1)** %x) nounwind {
+; CHECK-LABEL: @pointer_to_addrspace_pointer(
+; CHECK: load
+; CHECK: addrspacecast
+ %y = bitcast i32 addrspace(1)** %x to i32**
+ %z = load i32** %y
+ ret i32* %z
+}
+