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83
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1 ; RUN: llc -verify-machineinstrs -mtriple=i386--netbsd < %s | FileCheck %s
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2 ; Regression test for http://reviews.llvm.org/D5701
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3
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4 ; ModuleID = 'xxhash.i'
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5 target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
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6 target triple = "i386--netbsd"
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7
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8 ; CHECK-LABEL: fn1
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120
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9 ; CHECK: addl {{.*#+}} 4-byte Folded Reload
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83
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10 ; CHECK: addl {{.*#+}} 4-byte Folded Reload
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11 ; CHECK: imull {{.*#+}} 4-byte Folded Reload
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12 ; CHECK: orl {{.*#+}} 4-byte Folded Reload
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13 ; CHECK: retl
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14
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15 %struct.XXH_state64_t = type { i32, i32, i64, i64, i64 }
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16
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17 @a = common global i32 0, align 4
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18 @b = common global i64 0, align 8
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19
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20 ; Function Attrs: nounwind uwtable
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21 define i64 @fn1() #0 {
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22 entry:
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95
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23 %0 = load i32, i32* @a, align 4, !tbaa !1
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83
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24 %1 = inttoptr i32 %0 to %struct.XXH_state64_t*
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95
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25 %total_len = getelementptr inbounds %struct.XXH_state64_t, %struct.XXH_state64_t* %1, i32 0, i32 0
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26 %2 = load i32, i32* %total_len, align 4, !tbaa !5
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83
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27 %tobool = icmp eq i32 %2, 0
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28 br i1 %tobool, label %if.else, label %if.then
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29
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30 if.then: ; preds = %entry
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95
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31 %v3 = getelementptr inbounds %struct.XXH_state64_t, %struct.XXH_state64_t* %1, i32 0, i32 3
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32 %3 = load i64, i64* %v3, align 4, !tbaa !8
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33 %v4 = getelementptr inbounds %struct.XXH_state64_t, %struct.XXH_state64_t* %1, i32 0, i32 4
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34 %4 = load i64, i64* %v4, align 4, !tbaa !9
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35 %v2 = getelementptr inbounds %struct.XXH_state64_t, %struct.XXH_state64_t* %1, i32 0, i32 2
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36 %5 = load i64, i64* %v2, align 4, !tbaa !10
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83
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37 %shl = shl i64 %5, 1
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38 %or = or i64 %shl, %5
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39 %shl2 = shl i64 %3, 2
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40 %shr = lshr i64 %3, 1
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41 %or3 = or i64 %shl2, %shr
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42 %add = add i64 %or, %or3
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43 %mul = mul i64 %4, -4417276706812531889
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44 %shl4 = mul i64 %4, -8834553413625063778
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45 %shr5 = ashr i64 %mul, 3
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46 %or6 = or i64 %shr5, %shl4
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47 %mul7 = mul nsw i64 %or6, 1400714785074694791
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48 %xor = xor i64 %add, %mul7
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49 store i64 %xor, i64* @b, align 8, !tbaa !11
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50 %mul8 = mul nsw i64 %xor, 1400714785074694791
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51 br label %if.end
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52
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53 if.else: ; preds = %entry
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95
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54 %6 = load i64, i64* @b, align 8, !tbaa !11
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83
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55 %xor10 = xor i64 %6, -4417276706812531889
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56 %mul11 = mul nsw i64 %xor10, 400714785074694791
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57 br label %if.end
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58
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59 if.end: ; preds = %if.else, %if.then
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60 %storemerge.in = phi i64 [ %mul11, %if.else ], [ %mul8, %if.then ]
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61 %storemerge = add i64 %storemerge.in, -8796714831421723037
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62 store i64 %storemerge, i64* @b, align 8, !tbaa !11
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63 ret i64 undef
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64 }
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65
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66 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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67
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68 !llvm.ident = !{!0}
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69
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70 !0 = !{!"clang version 3.6 (trunk 219587)"}
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71 !1 = !{!2, !2, i64 0}
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72 !2 = !{!"int", !3, i64 0}
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73 !3 = !{!"omnipotent char", !4, i64 0}
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74 !4 = !{!"Simple C/C++ TBAA"}
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75 !5 = !{!6, !2, i64 0}
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76 !6 = !{!"XXH_state64_t", !2, i64 0, !2, i64 4, !7, i64 8, !7, i64 16, !7, i64 24}
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77 !7 = !{!"long long", !3, i64 0}
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78 !8 = !{!6, !7, i64 16}
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79 !9 = !{!6, !7, i64 24}
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80 !10 = !{!6, !7, i64 8}
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81 !11 = !{!7, !7, i64 0}
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