File: null-aliases-nothing.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: opt < %s -passes=newgvn -S | FileCheck %s

%t = type { i32 }
declare void @test1f(ptr)

define void @test1(ptr noalias %stuff ) {
    %before = load i32, ptr %stuff

    call void @test1f(ptr null)

    %after = load i32, ptr %stuff ; <--- This should be a dead load
    %sum = add i32 %before, %after

    store i32 %sum, ptr %stuff
    ret void
; CHECK: load
; CHECK-NOT: load
; CHECK: ret void
}