29 lines
957 B
LLVM
29 lines
957 B
LLVM
; This test checks to make sure that constant exprs fold in some simple situations
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; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK-NOT: bitcast
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; CHECK-NOT: trunc
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; CHECK: addrspacecast
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; CHECK: addrspacecast
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@A = global ptr null ; Cast null -> fold
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@B = global ptr @A ; Cast to same type -> fold
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@C = global i32 trunc (i64 42 to i32) ; Integral casts
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@D = global ptr @C ; cast of cast ptr->ptr
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@E = global i32 ptrtoint(ptr inttoptr (i8 5 to ptr) to i32) ; i32 -> ptr -> i32
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; Test folding of binary instrs
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@F = global ptr inttoptr (i32 add (i32 5, i32 -5) to ptr)
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@G = global ptr inttoptr (i32 sub (i32 5, i32 5) to ptr)
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; Address space cast AS0 null-> AS1 null
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@H = global ptr addrspace(1) addrspacecast(ptr null to ptr addrspace(1))
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; Address space cast AS1 null-> AS0 null
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@I = global ptr addrspacecast(ptr addrspace(1) null to ptr)
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; Bitcast -> GEP
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@J = external global { i32 }
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@K = global ptr @J
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