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      1 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"
      2 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s
      3 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-aligned-only -instcombine -gvn -S | FileCheck %s -check-prefix=CHECK-AO
      4 
      5 ; Simple 3-pair chain also with loads and stores (using ptrs and gep)
      6 define double @test1(i64* %a, i64* %b, i64* %c) nounwind uwtable readonly {
      7 entry:
      8   %i0 = load i64* %a, align 8
      9   %i1 = load i64* %b, align 8
     10   %mul = mul i64 %i0, %i1
     11   %arrayidx3 = getelementptr inbounds i64* %a, i64 1
     12   %i3 = load i64* %arrayidx3, align 8
     13   %arrayidx4 = getelementptr inbounds i64* %b, i64 1
     14   %i4 = load i64* %arrayidx4, align 8
     15   %mul5 = mul i64 %i3, %i4
     16   %ptr = inttoptr i64 %mul to double*
     17   %ptr5 = inttoptr i64 %mul5 to double*
     18   %aptr = getelementptr inbounds double* %ptr, i64 2
     19   %aptr5 = getelementptr inbounds double* %ptr5, i64 3
     20   %av = load double* %aptr, align 16
     21   %av5 = load double* %aptr5, align 16
     22   %r = fmul double %av, %av5
     23   store i64 %mul, i64* %c, align 8
     24   %arrayidx5 = getelementptr inbounds i64* %c, i64 1
     25   store i64 %mul5, i64* %arrayidx5, align 8
     26   ret double %r
     27 ; CHECK: @test1
     28 ; CHECK: %i0.v.i0 = bitcast i64* %a to <2 x i64>*
     29 ; CHECK: %i1.v.i0 = bitcast i64* %b to <2 x i64>*
     30 ; CHECK: %i0 = load <2 x i64>* %i0.v.i0, align 8
     31 ; CHECK: %i1 = load <2 x i64>* %i1.v.i0, align 8
     32 ; CHECK: %mul = mul <2 x i64> %i0, %i1
     33 ; CHECK: %ptr = inttoptr <2 x i64> %mul to <2 x double*>
     34 ; CHECK: %aptr = getelementptr inbounds <2 x double*> %ptr, <2 x i64> <i64 2, i64 3>
     35 ; CHECK: %aptr.v.r1 = extractelement <2 x double*> %aptr, i32 0
     36 ; CHECK: %aptr.v.r2 = extractelement <2 x double*> %aptr, i32 1
     37 ; CHECK: %av = load double* %aptr.v.r1, align 16
     38 ; CHECK: %av5 = load double* %aptr.v.r2, align 16
     39 ; CHECK: %r = fmul double %av, %av5
     40 ; CHECK: %0 = bitcast i64* %c to <2 x i64>*
     41 ; CHECK: store <2 x i64> %mul, <2 x i64>* %0, align 8
     42 ; CHECK: ret double %r
     43 ; CHECK-AO: @test1
     44 ; CHECK-AO-NOT: load <2 x
     45 }
     46 
     47 ; Simple 3-pair chain with loads and stores (using ptrs and gep)
     48 define void @test2(i64** %a, i64** %b, i64** %c) nounwind uwtable readonly {
     49 entry:
     50   %i0 = load i64** %a, align 8
     51   %i1 = load i64** %b, align 8
     52   %arrayidx3 = getelementptr inbounds i64** %a, i64 1
     53   %i3 = load i64** %arrayidx3, align 8
     54   %arrayidx4 = getelementptr inbounds i64** %b, i64 1
     55   %i4 = load i64** %arrayidx4, align 8
     56   %o1 = load i64* %i1, align 8
     57   %o4 = load i64* %i4, align 8
     58   %ptr0 = getelementptr inbounds i64* %i0, i64 %o1
     59   %ptr3 = getelementptr inbounds i64* %i3, i64 %o4
     60   store i64* %ptr0, i64** %c, align 8
     61   %arrayidx5 = getelementptr inbounds i64** %c, i64 1
     62   store i64* %ptr3, i64** %arrayidx5, align 8
     63   ret void
     64 ; CHECK: @test2
     65 ; CHECK: %i0.v.i0 = bitcast i64** %a to <2 x i64*>*
     66 ; CHECK: %i1 = load i64** %b, align 8
     67 ; CHECK: %i0 = load <2 x i64*>* %i0.v.i0, align 8
     68 ; CHECK: %arrayidx4 = getelementptr inbounds i64** %b, i64 1
     69 ; CHECK: %i4 = load i64** %arrayidx4, align 8
     70 ; CHECK: %o1 = load i64* %i1, align 8
     71 ; CHECK: %o4 = load i64* %i4, align 8
     72 ; CHECK: %ptr0.v.i1.1 = insertelement <2 x i64> undef, i64 %o1, i32 0
     73 ; CHECK: %ptr0.v.i1.2 = insertelement <2 x i64> %ptr0.v.i1.1, i64 %o4, i32 1
     74 ; CHECK: %ptr0 = getelementptr inbounds <2 x i64*> %i0, <2 x i64> %ptr0.v.i1.2
     75 ; CHECK: %0 = bitcast i64** %c to <2 x i64*>*
     76 ; CHECK: store <2 x i64*> %ptr0, <2 x i64*>* %0, align 8
     77 ; CHECK: ret void
     78 ; CHECK-AO: @test2
     79 ; CHECK-AO-NOT: <2 x
     80 }
     81 
     82