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120
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1 ; RUN: llc -fp-contract=fast -O3 -march=hexagon -mcpu=hexagonv5 < %s
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2 ; REQUIRES: asserts
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3
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4 ; Test that the pipeliner doesn't ICE due because the PHI generation
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5 ; code in the epilog does not attempt to reuse an existing PHI.
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6
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7 define void @test(float* noalias %srcImg, i32 %width, float* noalias %dstImg) {
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8 entry.split:
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9 %shr = lshr i32 %width, 1
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10 %incdec.ptr253 = getelementptr inbounds float, float* %dstImg, i32 2
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11 br i1 undef, label %for.body, label %for.end
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12
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13 for.body:
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14 %dst.21518.reg2mem.0 = phi float* [ null, %while.end712 ], [ %incdec.ptr253, %entry.split ]
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15 %dstEnd.01519 = phi float* [ %add.ptr725, %while.end712 ], [ undef, %entry.split ]
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16 %add.ptr367 = getelementptr inbounds float, float* %srcImg, i32 undef
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17 %dst.31487 = getelementptr inbounds float, float* %dst.21518.reg2mem.0, i32 1
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18 br i1 undef, label %while.body661.preheader, label %while.end712
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19
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20 while.body661.preheader:
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21 %scevgep1941 = getelementptr float, float* %add.ptr367, i32 1
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22 br label %while.body661.ur
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23
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24 while.body661.ur:
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25 %lsr.iv1942 = phi float* [ %scevgep1941, %while.body661.preheader ], [ undef, %while.body661.ur ]
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26 %col1.31508.reg2mem.0.ur = phi float [ %col3.31506.reg2mem.0.ur, %while.body661.ur ], [ undef, %while.body661.preheader ]
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27 %col4.31507.reg2mem.0.ur = phi float [ %add710.ur, %while.body661.ur ], [ 0.000000e+00, %while.body661.preheader ]
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28 %col3.31506.reg2mem.0.ur = phi float [ %add689.ur, %while.body661.ur ], [ undef, %while.body661.preheader ]
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29 %dst.41511.ur = phi float* [ %incdec.ptr674.ur, %while.body661.ur ], [ %dst.31487, %while.body661.preheader ]
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30 %mul662.ur = fmul float %col1.31508.reg2mem.0.ur, 4.000000e+00
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31 %add663.ur = fadd float undef, %mul662.ur
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32 %add665.ur = fadd float %add663.ur, undef
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33 %add667.ur = fadd float undef, %add665.ur
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34 %add669.ur = fadd float undef, %add667.ur
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35 %add670.ur = fadd float %col4.31507.reg2mem.0.ur, %add669.ur
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36 %conv673.ur = fmul float %add670.ur, 3.906250e-03
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37 %incdec.ptr674.ur = getelementptr inbounds float, float* %dst.41511.ur, i32 1
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38 store float %conv673.ur, float* %dst.41511.ur, align 4
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39 %scevgep1959 = getelementptr float, float* %lsr.iv1942, i32 -1
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40 %0 = load float, float* %scevgep1959, align 4
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41 %mul680.ur = fmul float %0, 4.000000e+00
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42 %add681.ur = fadd float undef, %mul680.ur
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43 %add684.ur = fadd float undef, %add681.ur
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44 %add687.ur = fadd float undef, %add684.ur
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45 %add689.ur = fadd float undef, %add687.ur
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46 %add699.ur = fadd float undef, undef
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47 %add703.ur = fadd float undef, %add699.ur
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48 %add707.ur = fadd float undef, %add703.ur
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49 %add710.ur = fadd float undef, %add707.ur
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50 %cmp660.ur = icmp ult float* %incdec.ptr674.ur, %dstEnd.01519
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51 br i1 %cmp660.ur, label %while.body661.ur, label %while.end712
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52
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53 while.end712:
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54 %dst.4.lcssa.reg2mem.0 = phi float* [ %dst.31487, %for.body ], [ undef, %while.body661.ur ]
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55 %conv721 = fpext float undef to double
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56 %mul722 = fmul double %conv721, 0x3F7111112119E8FB
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57 %conv723 = fptrunc double %mul722 to float
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58 store float %conv723, float* %dst.4.lcssa.reg2mem.0, align 4
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59 %add.ptr725 = getelementptr inbounds float, float* %dstEnd.01519, i32 %shr
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60 %cmp259 = icmp ult i32 undef, undef
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61 br i1 %cmp259, label %for.body, label %for.end
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62
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63 for.end:
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64 ret void
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65 }
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