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1; RUN: llc -mtriple=aarch64 < %s | FileCheck %s2 3 4define i64 @test_readcyclecounter() nounwind {5 ; CHECK-LABEL: test_readcyclecounter:6 ; CHECK: // %bb.0:7 ; CHECK-NEXT: mrs x0, CNTVCT_EL08 ; CHECK-NEXT: ret9 %tmp0 = call i64 @llvm.readcyclecounter()10 ret i64 %tmp011}12 13declare i64 @llvm.readcyclecounter()14