1 ; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s 2 3 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" 4 target triple = "x86_64-apple-macosx10.7.0" 5 6 @.str = private unnamed_addr constant [6 x i8] c"bingo\00", align 1 7 8 ; We can't vectorize when the roots are used inside the tree. 9 ;CHECK-LABEL: @in_tree_user( 10 ;CHECK-NOT: load <2 x double> 11 ;CHECK: ret 12 define void @in_tree_user(double* nocapture %A, i32 %n) { 13 entry: 14 %conv = sitofp i32 %n to double 15 br label %for.body 16 17 for.body: ; preds = %for.inc, %entry 18 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ] 19 %0 = shl nsw i64 %indvars.iv, 1 20 %arrayidx = getelementptr inbounds double* %A, i64 %0 21 %1 = load double* %arrayidx, align 8 22 %mul1 = fmul double %conv, %1 23 %mul2 = fmul double %mul1, 7.000000e+00 24 %add = fadd double %mul2, 5.000000e+00 25 %BadValue = fadd double %add, %add ; <------------------ In tree user. 26 %2 = or i64 %0, 1 27 %arrayidx6 = getelementptr inbounds double* %A, i64 %2 28 %3 = load double* %arrayidx6, align 8 29 %mul8 = fmul double %conv, %3 30 %mul9 = fmul double %mul8, 4.000000e+00 31 %add10 = fadd double %mul9, 9.000000e+00 32 %cmp11 = fcmp ogt double %add, %add10 33 br i1 %cmp11, label %if.then, label %for.inc 34 35 if.then: ; preds = %for.body 36 %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([6 x i8]* @.str, i64 0, i64 0)) 37 br label %for.inc 38 39 for.inc: ; preds = %for.body, %if.then 40 %indvars.iv.next = add i64 %indvars.iv, 1 41 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 42 %exitcond = icmp eq i32 %lftr.wideiv, 100 43 br i1 %exitcond, label %for.end, label %for.body 44 45 for.end: ; preds = %for.inc 46 ret void 47 } 48 49 declare i32 @printf(i8* nocapture, ...) 50 51
