1 ; RUN: opt -basicaa -inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s 2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 3 target triple = "x86_64-unknown-linux-gnu" 4 5 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #0 6 declare void @hey() #0 7 8 define void @hello(i8* noalias nocapture %a, i8* noalias nocapture readonly %c, i8* nocapture %b) #1 { 9 entry: 10 %l = alloca i8, i32 512, align 1 11 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 16, i32 16, i1 0) 12 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %c, i64 16, i32 16, i1 0) 13 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %c, i64 16, i32 16, i1 0) 14 call void @hey() 15 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %l, i8* %c, i64 16, i32 16, i1 0) 16 ret void 17 } 18 19 define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 { 20 entry: 21 tail call void @hello(i8* %a, i8* %c, i8* %b) 22 ret void 23 } 24 25 ; CHECK: define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 { 26 ; CHECK: entry: 27 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 16, i32 16, i1 false) #1, !noalias !0 28 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %c, i64 16, i32 16, i1 false) #1, !noalias !3 29 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %c, i64 16, i32 16, i1 false) #1, !alias.scope !5 30 ; CHECK: call void @hey() #1, !noalias !5 31 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %{{.*}}, i8* %c, i64 16, i32 16, i1 false) #1, !noalias !3 32 ; CHECK: ret void 33 ; CHECK: } 34 35 attributes #0 = { nounwind argmemonly } 36 attributes #1 = { nounwind } 37 attributes #2 = { nounwind uwtable } 38 39 ; CHECK: !0 = !{!1} 40 ; CHECK: !1 = distinct !{!1, !2, !"hello: %c"} 41 ; CHECK: !2 = distinct !{!2, !"hello"} 42 ; CHECK: !3 = !{!4} 43 ; CHECK: !4 = distinct !{!4, !2, !"hello: %a"} 44 ; CHECK: !5 = !{!4, !1} 45 46
