; RUN: llc -mtriple=aarch64-unknown-unknown -asm-verbose=false < %s |\ ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=PERFMON ; RUN: llc -mtriple=aarch64-unknown-unknown -mattr=-perfmon -asm-verbose=false < %s |\ ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=NOPERFMON define i64 @test_readcyclecounter() nounwind { ; CHECK-LABEL: test_readcyclecounter: ; PERFMON-NEXT: mrs x0, PMCCNTR_EL0 ; NOPERFMON-NEXT: mov x0, xzr ; CHECK-NEXT: ret %tmp0 = call i64 @llvm.readcyclecounter() ret i64 %tmp0 } declare i64 @llvm.readcyclecounter()