Xamarin Public Jenkins (auto-signing) f32dbaf0b2 Imported Upstream version 5.18.0.225
Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5
2018-12-21 19:01:49 +00:00

23 lines
709 B
LLVM

; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s
target datalayout = "e"
declare void @foo(i8*)
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
define void @test() {
%ptr1 = alloca i8
%ptr2 = alloca i8
call void @foo(i8* %ptr2)
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %ptr1, i8* %ptr2, i32 1, i32 1, i1 false)
call void @foo(i8* %ptr1)
ret void
; Check that the transformation isn't applied if the called function can
; capture the pointer argument (i.e. the nocapture attribute isn't present)
; CHECK-LABEL: @test(
; CHECK: call void @foo(i8* %ptr2)
; CHECK-NEXT: call void @llvm.memcpy
; CHECK-NEXT: call void @foo(i8* %ptr1)
}