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1; This test checks to make sure that constant exprs fold in some simple situations2 3; RUN: llvm-as < %s | llvm-dis | FileCheck %s4; RUN: verify-uselistorder %s5 6; CHECK-NOT: bitcast7; CHECK-NOT: trunc8; CHECK: addrspacecast9; CHECK: addrspacecast10 11@A = global ptr null ; Cast null -> fold12@B = global ptr @A ; Cast to same type -> fold13@C = global i32 trunc (i64 42 to i32) ; Integral casts14@D = global ptr @C ; cast of cast ptr->ptr15@E = global i32 ptrtoint(ptr inttoptr (i8 5 to ptr) to i32) ; i32 -> ptr -> i3216 17; Test folding of binary instrs18@F = global ptr inttoptr (i32 add (i32 5, i32 -5) to ptr)19@G = global ptr inttoptr (i32 sub (i32 5, i32 5) to ptr)20 21; Address space cast AS0 null-> AS1 null22@H = global ptr addrspace(1) addrspacecast(ptr null to ptr addrspace(1))23 24; Address space cast AS1 null-> AS0 null25@I = global ptr addrspacecast(ptr addrspace(1) null to ptr)26 27; Bitcast -> GEP28@J = external global { i32 }29@K = global ptr @J30