derek.holloway
7502bf64a4
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24 lines
790 B
LLVM
24 lines
790 B
LLVM
; RUN: opt -passes='print<mem-derefs>' -S < %s -disable-output -use-dereferenceable-at-point-semantics 2>&1 | FileCheck %s --check-prefixes=CHECK
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target datalayout = "e-i32:32:64"
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; For the abstract machine model (before RS4GC), gc managed objects
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; conceptually live forever. But there may be non-managed objects which are
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; freed.
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; CHECK-LABEL: 'abstract_model'
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; CHECK: %gc_ptr
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; CHECK-NOT: %other_ptr
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; FIXME: Can infer the gc pointer case
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define void @abstract_model(ptr addrspace(1) dereferenceable(8) %gc_ptr,
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ptr dereferenceable(8) %other_ptr)
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gc "statepoint-example" {
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entry:
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call void @mayfree()
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load i32, ptr addrspace(1) %gc_ptr
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load i32, ptr %other_ptr
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ret void
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}
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; Can free any object accessible in memory
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declare void @mayfree()
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