llvm-for-llvmta/test/Analysis/BasicAA/tail-byval.ll

16 lines
506 B
LLVM

; RUN: opt -basic-aa -aa-eval -print-all-alias-modref-info -disable-output < %s 2>&1 | FileCheck %s
declare void @takebyval(i32* byval(i32) %p)
define i32 @tailbyval() {
entry:
%p = alloca i32
store i32 42, i32* %p
tail call void @takebyval(i32* byval(i32) %p)
%rv = load i32, i32* %p
ret i32 %rv
}
; FIXME: This should be Just Ref.
; CHECK-LABEL: Function: tailbyval: 1 pointers, 1 call sites
; CHECK-NEXT: Both ModRef: Ptr: i32* %p <-> tail call void @takebyval(i32* byval(i32) %p)