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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=memcpyopt,instcombine -S < %s -verify-memoryssa | FileCheck %s3 4target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"5target triple = "x86_64-unknown-linux-gnu"6 7define void @foo(ptr noalias nocapture sret([8 x i64]) dereferenceable(64) %sret) {8; CHECK-LABEL: @foo(9; CHECK-NEXT: entry-block:10; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) [[SRET:%.*]], i8 0, i64 64, i1 false)11; CHECK-NEXT: ret void12;13entry-block:14 %a = alloca [8 x i64], align 815 call void @llvm.lifetime.start.p0(ptr %a)16 call void @llvm.memset.p0.i64(ptr align 8 %a, i8 0, i64 64, i1 false)17 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %sret, ptr align 8 %a, i64 64, i1 false)18 call void @llvm.lifetime.end.p0(ptr %a)19 ret void20 21}22 23define void @bar(ptr noalias nocapture sret([8 x i64]) dereferenceable(64) %sret, ptr noalias nocapture dereferenceable(64) %out) {24; CHECK-LABEL: @bar(25; CHECK-NEXT: entry-block:26; CHECK-NEXT: [[A:%.*]] = alloca [8 x i64], align 827; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[A]])28; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) [[A]], i8 0, i64 64, i1 false)29; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) [[SRET:%.*]], i8 0, i64 64, i1 false)30; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) [[A]], i8 42, i64 32, i1 false)31; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) [[OUT:%.*]], ptr noundef nonnull align 8 dereferenceable(64) [[A]], i64 64, i1 false)32; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[A]])33; CHECK-NEXT: ret void34;35entry-block:36 %a = alloca [8 x i64], align 837 call void @llvm.lifetime.start.p0(ptr %a)38 call void @llvm.memset.p0.i64(ptr align 8 %a, i8 0, i64 64, i1 false)39 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %sret, ptr align 8 %a, i64 64, i1 false)40 call void @llvm.memset.p0.i64(ptr align 8 %a, i8 42, i64 32, i1 false)41 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %out, ptr align 8 %a, i64 64, i1 false)42 call void @llvm.lifetime.end.p0(ptr %a)43 ret void44 45}46 47declare void @llvm.lifetime.start.p0(ptr nocapture) nounwind48declare void @llvm.lifetime.end.p0(ptr nocapture) nounwind49 50declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) nounwind51declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind52