| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -passes=memcpyopt -verify-memoryssa | FileCheck %s |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| %T = type { i64, i64 } |
| |
| define void @test(ptr %src) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: [[TMP:%.*]] = alloca i8, align 1 |
| ; CHECK-NEXT: [[DST:%.*]] = alloca i8, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[DST]], ptr align 8 [[SRC:%.*]], i64 1, i1 false) |
| ; CHECK-NEXT: ret void |
| ; |
| %tmp = alloca i8 |
| %dst = alloca i8 |
| call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %src, i64 1, i1 false), !noalias !2 |
| call void @llvm.memcpy.p0.p0.i64(ptr align 8 %dst, ptr align 8 %tmp, i64 1, i1 false) |
| |
| ret void |
| } |
| |
| declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1) |
| |
| ; Check that the noalias for "dst" was removed by checking that the metadata is gone |
| ; CHECK-NOT: "dst" |
| !0 = !{!0} |
| !1 = distinct !{!1, !0, !"dst"} |
| !2 = distinct !{!1} |
