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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=memcpyopt -S -verify-memoryssa | FileCheck %s3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"5 6; Don't delete the memcpy in %if.then, even though it depends on an instruction7; which will be deleted.8 9define void @foo(i1 %c, ptr %d, ptr %e, ptr %f) {10; CHECK-LABEL: @foo(11; CHECK-NEXT: entry:12; CHECK-NEXT: [[TMP:%.*]] = alloca [50 x i8], align 813; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[TMP]], i64 114; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr nonnull [[D:%.*]], i8 0, i64 10, i1 false)15; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[TMP]], i8 0, i64 11, i1 false)16; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN:%.*]], label [[EXIT:%.*]]17; CHECK: if.then:18; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[F:%.*]], i8 0, i64 11, i1 false)19; CHECK-NEXT: br label [[EXIT]]20; CHECK: exit:21; CHECK-NEXT: ret void22;23entry:24 %tmp = alloca [50 x i8], align 825 %tmp1 = getelementptr inbounds i8, ptr %tmp, i64 126 call void @llvm.memset.p0.i64(ptr nonnull %d, i8 0, i64 10, i1 false)27 store i8 0, ptr %tmp, align 828 call void @llvm.memcpy.p0.p0.i64(ptr nonnull %tmp1, ptr nonnull %d, i64 10, i1 false)29 br i1 %c, label %if.then, label %exit30 31if.then:32 call void @llvm.memcpy.p0.p0.i64(ptr align 8 %f, ptr nonnull align 8 %tmp, i64 30, i1 false)33 br label %exit34 35exit:36 ret void37}38 39declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)40declare void @llvm.memset.p0.i64(ptr, i8, i64, i1)41