Florian Hahn b769758056
[Options] Use UseDerefAtPointSemantics cl::opt<bool>. (#123192)
It is used as boolean option, use cl::opt<bool> instead of
vl::opt<unsigned>.

PR: https://github.com/llvm/llvm-project/pull/123192
2025-01-16 14:07:03 +00:00

24 lines
786 B
LLVM

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