1 ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7
3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-apple-darwin13.3.0"
6 @a = common global double 0.000000e+00, align 8
10 %init = load double* @a, align 8
14 %phi = phi double [ %add2, %loop ], [ %init, %entry ]
15 %postadd1_phi = phi double [ %postadd1, %loop ], [ %init, %entry ]
16 %postadd2_phi = phi double [ %postadd2, %loop ], [ %init, %entry ]
17 %add1 = fadd double %postadd1_phi, undef
18 %add2 = fadd double %postadd2_phi, %phi
19 %mul2 = fmul double %add2, 0.000000e+00
20 %binaryop_B = fadd double %postadd1_phi, %mul2
21 %mul1 = fmul double %add1, 0.000000e+00
22 %tmp = fadd double %postadd2_phi, 0.000000e+00
24 ; tryToVectorize() starts with this binary instruction.
25 ; At the same time vectorization wraps around the loop, vectorizes
26 ; postadd1/2 and eventually binary_V and tmp. So binary_V itself is replaced
27 ; with a vector instruction.
28 ; The SLPVectorizer crashed because it tried to use binary_V
29 ; after vectorization to re-arrange instructions.
30 %binary_V = fadd double %mul1, %binaryop_B
32 %postadd1 = fadd double %binary_V, 0.000000e+00
33 %postadd2 = fadd double %tmp, 1.000000e+00
34 %tobool = fcmp une double %postadd1, 0.000000e+00
35 br i1 %tobool, label %exit, label %loop