dotp.ll

dotp.ll

; ModuleID = 'dotp.ll'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"

; Function Attrs: nounwind readonly ssp uwtable
define double @dotp(double* noalias nocapture readonly %xs, double* noalias nocapture readonly %ys, i32 %n) #0 {
entry:
  %cmp5 = icmp sgt i32 %n, 0
  br i1 %cmp5, label %for.body, label %for.end

for.body:                                         ; preds = %entry, %for.body
  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
  %acc.06 = phi double [ %add, %for.body ], [ 0.000000e+00, %entry ]
  %arrayidx = getelementptr inbounds double* %xs, i64 %indvars.iv
  %0 = load double* %arrayidx, align 8
  %arrayidx2 = getelementptr inbounds double* %ys, i64 %indvars.iv
  %1 = load double* %arrayidx2, align 8
  %mul = fmul fast double %0, %1
  %add = fadd fast double %acc.06, %mul
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
  %exitcond = icmp eq i32 %lftr.wideiv, %n
  br i1 %exitcond, label %for.end, label %for.body

for.end:                                          ; preds = %for.body, %entry
  %acc.0.lcssa = phi double [ 0.000000e+00, %entry ], [ %add, %for.body ]
  ret double %acc.0.lcssa
}

attributes #0 = { nounwind readonly ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="true" "use-soft-float"="false" }

!llvm.ident = !{!0}

!0 = metadata !{metadata !"clang version 3.4 (tags/RELEASE_34/final)"}