forked from OSchip/llvm-project
113 lines
4.9 KiB
LLVM
113 lines
4.9 KiB
LLVM
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"
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; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s
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; This test checks the non-trivial pairing-induced cycle avoidance. Without this cycle avoidance, the algorithm would otherwise
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; want to select the pairs:
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; %div77 = fdiv double %sub74, %mul76.v.r1 <-> %div125 = fdiv double %mul121, %mul76.v.r2 (div125 depends on mul117)
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; %add84 = fadd double %sub83, 2.000000e+00 <-> %add127 = fadd double %mul126, 1.000000e+00 (add127 depends on div77)
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; %mul95 = fmul double %sub45.v.r1, %sub36.v.r1 <-> %mul88 = fmul double %sub36.v.r1, %sub87 (mul88 depends on add84)
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; %mul117 = fmul double %sub39.v.r1, %sub116 <-> %mul97 = fmul double %mul96, %sub39.v.r1 (mul97 depends on mul95)
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; and so a dependency cycle would be created.
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declare double @fabs(double) nounwind readnone
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define void @test1(double %a, double %b, double %c, double %add80, double %mul1, double %mul2.v.r1, double %mul73, double %sub, double %sub65, double %F.0, i32 %n.0, double %Bnm3.0, double %Bnm2.0, double %Bnm1.0, double %Anm3.0, double %Anm2.0, double %Anm1.0) {
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entry:
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br label %go
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go:
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%conv = sitofp i32 %n.0 to double
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%add35 = fadd double %conv, %a
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%sub36 = fadd double %add35, -1.000000e+00
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%add38 = fadd double %conv, %b
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%sub39 = fadd double %add38, -1.000000e+00
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%add41 = fadd double %conv, %c
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%sub42 = fadd double %add41, -1.000000e+00
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%sub45 = fadd double %add35, -2.000000e+00
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%sub48 = fadd double %add38, -2.000000e+00
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%sub51 = fadd double %add41, -2.000000e+00
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%mul52 = shl nsw i32 %n.0, 1
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%sub53 = add nsw i32 %mul52, -1
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%conv54 = sitofp i32 %sub53 to double
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%sub56 = add nsw i32 %mul52, -3
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%conv57 = sitofp i32 %sub56 to double
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%sub59 = add nsw i32 %mul52, -5
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%conv60 = sitofp i32 %sub59 to double
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%mul61 = mul nsw i32 %n.0, %n.0
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%conv62 = sitofp i32 %mul61 to double
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%mul63 = fmul double %conv62, 3.000000e+00
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%mul67 = fmul double %sub65, %conv
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%add68 = fadd double %mul63, %mul67
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%add69 = fadd double %add68, 2.000000e+00
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%sub71 = fsub double %add69, %mul2.v.r1
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%sub74 = fsub double %sub71, %mul73
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%mul75 = fmul double %conv57, 2.000000e+00
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%mul76 = fmul double %mul75, %sub42
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%div77 = fdiv double %sub74, %mul76
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%mul82 = fmul double %add80, %conv
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%sub83 = fsub double %mul63, %mul82
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%add84 = fadd double %sub83, 2.000000e+00
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%sub86 = fsub double %add84, %mul2.v.r1
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%sub87 = fsub double -0.000000e+00, %sub86
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%mul88 = fmul double %sub36, %sub87
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%mul89 = fmul double %mul88, %sub39
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%mul90 = fmul double %conv54, 4.000000e+00
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%mul91 = fmul double %mul90, %conv57
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%mul92 = fmul double %mul91, %sub51
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%mul93 = fmul double %mul92, %sub42
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%div94 = fdiv double %mul89, %mul93
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%mul95 = fmul double %sub45, %sub36
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%mul96 = fmul double %mul95, %sub48
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%mul97 = fmul double %mul96, %sub39
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%sub99 = fsub double %conv, %a
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%sub100 = fadd double %sub99, -2.000000e+00
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%mul101 = fmul double %mul97, %sub100
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%sub103 = fsub double %conv, %b
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%sub104 = fadd double %sub103, -2.000000e+00
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%mul105 = fmul double %mul101, %sub104
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%mul106 = fmul double %conv57, 8.000000e+00
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%mul107 = fmul double %mul106, %conv57
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%mul108 = fmul double %mul107, %conv60
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%sub111 = fadd double %add41, -3.000000e+00
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%mul112 = fmul double %mul108, %sub111
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%mul113 = fmul double %mul112, %sub51
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%mul114 = fmul double %mul113, %sub42
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%div115 = fdiv double %mul105, %mul114
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%sub116 = fsub double -0.000000e+00, %sub36
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%mul117 = fmul double %sub39, %sub116
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%sub119 = fsub double %conv, %c
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%sub120 = fadd double %sub119, -1.000000e+00
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%mul121 = fmul double %mul117, %sub120
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%mul123 = fmul double %mul75, %sub51
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%mul124 = fmul double %mul123, %sub42
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%div125 = fdiv double %mul121, %mul124
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%mul126 = fmul double %div77, %sub
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%add127 = fadd double %mul126, 1.000000e+00
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%mul128 = fmul double %add127, %Anm1.0
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%mul129 = fmul double %div94, %sub
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%add130 = fadd double %div125, %mul129
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%mul131 = fmul double %add130, %sub
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%mul132 = fmul double %mul131, %Anm2.0
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%add133 = fadd double %mul128, %mul132
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%mul134 = fmul double %div115, %mul1
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%mul135 = fmul double %mul134, %Anm3.0
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%add136 = fadd double %add133, %mul135
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%mul139 = fmul double %add127, %Bnm1.0
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%mul143 = fmul double %mul131, %Bnm2.0
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%add144 = fadd double %mul139, %mul143
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%mul146 = fmul double %mul134, %Bnm3.0
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%add147 = fadd double %add144, %mul146
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%div148 = fdiv double %add136, %add147
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%sub149 = fsub double %F.0, %div148
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%div150 = fdiv double %sub149, %F.0
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%call = tail call double @fabs(double %div150) nounwind readnone
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%cmp = fcmp olt double %call, 0x3CB0000000000000
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%cmp152 = icmp sgt i32 %n.0, 20000
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%or.cond = or i1 %cmp, %cmp152
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br i1 %or.cond, label %done, label %go
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done:
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ret void
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; CHECK: @test1
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; CHECK: go:
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; CHECK-NEXT: %conv.v.i0.1 = insertelement <2 x i32> undef, i32 %n.0, i32 0
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; FIXME: When tree pruning is deterministic, include the entire output.
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}
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