1 ; RUN: llc < %s -verify-machineinstrs 2 ; PR16110 3 ; 4 ; This test case contains a value that is split into two connected components 5 ; by rematerialization during coalescing. It also contains a DBG_VALUE 6 ; instruction which must be updated during 7 ; ConnectedVNInfoEqClasses::Distribute(). 8 9 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32" 10 target triple = "thumbv7-apple-ios3.0.0" 11 12 @c = common global i32 0, align 4 13 @b = common global i32 0, align 4 14 @a = common global i64 0, align 8 15 @d = common global i32 0, align 4 16 17 ; Function Attrs: nounwind ssp 18 define i32 @pr16110() #0 !dbg !4 { 19 for.cond1.preheader: 20 store i32 0, i32* @c, align 4, !dbg !21 21 br label %for.cond1.outer, !dbg !26 22 23 for.cond1: ; preds = %for.end9, %for.cond1.outer 24 %storemerge11 = phi i32 [ 0, %for.end9 ], [ %storemerge11.ph, %for.cond1.outer ] 25 %cmp = icmp slt i32 %storemerge11, 1, !dbg !26 26 br i1 %cmp, label %for.body2, label %for.end9, !dbg !26 27 28 for.body2: ; preds = %for.cond1 29 store i32 %storemerge11, i32* @b, align 4, !dbg !26 30 tail call void @llvm.dbg.value(metadata i32* null, i64 0, metadata !11, metadata !DIExpression()), !dbg !28 31 %0 = load i64, i64* @a, align 8, !dbg !29 32 %xor = xor i64 %0, %e.1.ph, !dbg !29 33 %conv3 = trunc i64 %xor to i32, !dbg !29 34 tail call void @llvm.dbg.value(metadata i32 %conv3, i64 0, metadata !10, metadata !DIExpression()), !dbg !29 35 %tobool4 = icmp eq i32 %conv3, 0, !dbg !29 36 br i1 %tobool4, label %land.end, label %land.rhs, !dbg !29 37 38 land.rhs: ; preds = %for.body2 39 %call = tail call i32 bitcast (i32 (...)* @fn3 to i32 ()*)() #3, !dbg !29 40 %tobool5 = icmp ne i32 %call, 0, !dbg !29 41 br label %land.end 42 43 land.end: ; preds = %land.rhs, %for.body2 44 %1 = phi i1 [ false, %for.body2 ], [ %tobool5, %land.rhs ] 45 %land.ext = zext i1 %1 to i32 46 %call6 = tail call i32 bitcast (i32 (...)* @fn2 to i32 (i32, i32*)*)(i32 %land.ext, i32* null) #3 47 %2 = load i32, i32* @b, align 4, !dbg !26 48 %inc8 = add nsw i32 %2, 1, !dbg !26 49 %phitmp = and i64 %xor, 4294967295, !dbg !26 50 br label %for.cond1.outer, !dbg !26 51 52 for.cond1.outer: ; preds = %land.end, %for.cond1.preheader 53 %storemerge11.ph = phi i32 [ %inc8, %land.end ], [ 0, %for.cond1.preheader ] 54 %e.1.ph = phi i64 [ %phitmp, %land.end ], [ 0, %for.cond1.preheader ] 55 %3 = load i32, i32* @d, align 4, !dbg !31 56 %tobool10 = icmp eq i32 %3, 0, !dbg !31 57 br label %for.cond1 58 59 for.end9: ; preds = %for.cond1 60 br i1 %tobool10, label %if.end, label %for.cond1, !dbg !31 61 62 if.end: ; preds = %for.end9 63 store i32 %storemerge11, i32* @b, align 4, !dbg !26 64 ret i32 0, !dbg !32 65 } 66 67 declare i32 @fn2(...) #1 68 69 declare i32 @fn3(...) #1 70 71 ; Function Attrs: nounwind readnone 72 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2 73 74 attributes #0 = { nounwind ssp "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" "unsafe-fp-math"="false" "use-soft-float"="false" } 75 attributes #1 = { "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" "unsafe-fp-math"="false" "use-soft-float"="false" } 76 attributes #2 = { nounwind readnone } 77 attributes #3 = { nounwind } 78 79 !llvm.dbg.cu = !{!0} 80 !llvm.module.flags = !{!33} 81 82 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 182024) (llvm/trunk 182023)", isOptimized: true, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !15, imports: !2) 83 !1 = !DIFile(filename: "pr16110.c", directory: "/d/b") 84 !2 = !{} 85 !3 = !{!4} 86 !4 = distinct !DISubprogram(name: "pr16110", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !9) 87 !5 = !DIFile(filename: "pr16110.c", directory: "/d/b") 88 !6 = !DISubroutineType(types: !7) 89 !7 = !{!8} 90 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 91 !9 = !{!10, !11} 92 !10 = !DILocalVariable(name: "e", line: 8, scope: !4, file: !5, type: !8) 93 !11 = !DILocalVariable(name: "f", line: 13, scope: !12, file: !5, type: !14) 94 !12 = distinct !DILexicalBlock(line: 12, column: 0, file: !1, scope: !13) 95 !13 = distinct !DILexicalBlock(line: 12, column: 0, file: !1, scope: !4) 96 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !8) 97 !15 = !{!16, !18, !19, !20} 98 !16 = !DIGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !5, type: !17, variable: i64* @a) 99 !17 = !DIBasicType(tag: DW_TAG_base_type, name: "long long int", size: 64, align: 32, encoding: DW_ATE_signed) 100 !18 = !DIGlobalVariable(name: "b", line: 2, isLocal: false, isDefinition: true, scope: null, file: !5, type: !8, variable: i32* @b) 101 !19 = !DIGlobalVariable(name: "c", line: 3, isLocal: false, isDefinition: true, scope: null, file: !5, type: !8, variable: i32* @c) 102 !20 = !DIGlobalVariable(name: "d", line: 4, isLocal: false, isDefinition: true, scope: null, file: !5, type: !8, variable: i32* @d) 103 !21 = !DILocation(line: 10, scope: !22) 104 !22 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !4) 105 !26 = !DILocation(line: 12, scope: !13) 106 !27 = !{i32* null} 107 !28 = !DILocation(line: 13, scope: !12) 108 !29 = !DILocation(line: 14, scope: !12) 109 !31 = !DILocation(line: 16, scope: !4) 110 !32 = !DILocation(line: 18, scope: !4) 111 !33 = !{i32 1, !"Debug Info Version", i32 3} 112
