llvm/test/CodeGen/SystemZ/scalar-ctlz-04.ll


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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z17 | FileCheck %s

declare i128 @llvm.ctlz.i128(i128, i1)

define i128 @f1(i128 %a) {
; CHECK-LABEL: f1:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r3), 3
; CHECK-NEXT:    vclzq %v0, %v0
; CHECK-NEXT:    vst %v0, 0(%r2), 3
; CHECK-NEXT:    br %r14
  %res = tail call i128 @llvm.ctlz.i128(i128 %a, i1 false)
  ret i128 %res
}

define i128 @f2(i128 %a) {
; CHECK-LABEL: f2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vl %v0, 0(%r3), 3
; CHECK-NEXT:    vclzq %v0, %v0
; CHECK-NEXT:    vst %v0, 0(%r2), 3
; CHECK-NEXT:    br %r14
  %res = tail call i128 @llvm.ctlz.i128(i128 %a, i1 true)
  ret i128 %res
}