File: readcyclecounter.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (15 lines) | stat: -rw-r--r-- 578 bytes parent folder | download | duplicates (19) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
; 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()