llvm/llvm/test/Transforms/LoopVectorize/vectorizeVFone.ll

; RUN: opt < %s -passes=loop-vectorize -S 2>&1 | FileCheck %s

%type = type { [3 x double] }

define void @getScalarFunc(ptr %A, ptr %C, ptr %B) {
; CHECK-LABEL: getScalarFunc
; This check will catch also the massv version of the function.
; CHECK-NOT: call fast <{{[0-9]+}} x double> @{{.*}}atan(<{{[0-9]+}} x double> %{{[0-9]+}})
entry:
  br label %for.body

for.body: 
  %i = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %dummyload2 = load double, ptr %A, align 8
  %arrayidx.i24 = getelementptr inbounds %type, ptr %B, i64 %i, i32 0, i32 0
  %_15 = load double, ptr %arrayidx.i24, align 8
  %call10 = tail call fast double @atan(double %_15) #0
  %inc = add i64 %i, 1
  %cmp = icmp ugt i64 1000, %inc
  br i1 %cmp, label %for.body, label %for.end

for.end: 
  ret void
}

declare double @atan(double) local_unnamed_addr
declare <2 x double> @vector_atan(<2 x double>) #0
attributes #0 = { nounwind readnone "vector-function-abi-variant"="_ZGV_LLVM_N2v_atan(vector_atan)" }