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fb3abba237
Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
101 lines
4.8 KiB
LLVM
101 lines
4.8 KiB
LLVM
; RUN: opt < %s -loop-vectorize -S 2>&1 | FileCheck %s
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; Verify warning is generated when vectorization/ interleaving is explicitly specified and fails to occur.
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; CHECK: warning: no_array_bounds.cpp:5:5: loop not vectorized: failed explicitly specified loop vectorization
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; CHECK: warning: no_array_bounds.cpp:10:5: loop not interleaved: failed explicitly specified loop interleaving
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; #pragma clang loop vectorize(enable)
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; for (int i = 0; i < number; i++) {
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; A[B[i]]++;
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; }
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; #pragma clang loop vectorize(disable) interleave(enable)
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; for (int i = 0; i < number; i++) {
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; B[A[i]]++;
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; }
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: nounwind ssp uwtable
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define void @_Z4testPiS_i(i32* nocapture %A, i32* nocapture %B, i32 %number) #0 !dbg !4 {
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entry:
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%cmp25 = icmp sgt i32 %number, 0, !dbg !10
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br i1 %cmp25, label %for.body.preheader, label %for.end15, !dbg !10, !llvm.loop !12
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for.body.preheader: ; preds = %entry
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br label %for.body, !dbg !14
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for.cond5.preheader: ; preds = %for.body
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br i1 %cmp25, label %for.body7.preheader, label %for.end15, !dbg !16, !llvm.loop !18
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for.body7.preheader: ; preds = %for.cond5.preheader
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br label %for.body7, !dbg !20
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv27 = phi i64 [ %indvars.iv.next28, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv27, !dbg !14
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%0 = load i32, i32* %arrayidx, align 4, !dbg !14, !tbaa !22
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%idxprom1 = sext i32 %0 to i64, !dbg !14
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1, !dbg !14
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%1 = load i32, i32* %arrayidx2, align 4, !dbg !14, !tbaa !22
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%inc = add nsw i32 %1, 1, !dbg !14
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store i32 %inc, i32* %arrayidx2, align 4, !dbg !14, !tbaa !22
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%indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1, !dbg !10
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%lftr.wideiv29 = trunc i64 %indvars.iv.next28 to i32, !dbg !10
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%exitcond30 = icmp eq i32 %lftr.wideiv29, %number, !dbg !10
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br i1 %exitcond30, label %for.cond5.preheader, label %for.body, !dbg !10, !llvm.loop !12
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for.body7: ; preds = %for.body7.preheader, %for.body7
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body7 ], [ 0, %for.body7.preheader ]
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%arrayidx9 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !20
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%2 = load i32, i32* %arrayidx9, align 4, !dbg !20, !tbaa !22
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%idxprom10 = sext i32 %2 to i64, !dbg !20
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%arrayidx11 = getelementptr inbounds i32, i32* %B, i64 %idxprom10, !dbg !20
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%3 = load i32, i32* %arrayidx11, align 4, !dbg !20, !tbaa !22
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%inc12 = add nsw i32 %3, 1, !dbg !20
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store i32 %inc12, i32* %arrayidx11, align 4, !dbg !20, !tbaa !22
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !16
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !16
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%exitcond = icmp eq i32 %lftr.wideiv, %number, !dbg !16
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br i1 %exitcond, label %for.end15.loopexit, label %for.body7, !dbg !16, !llvm.loop !18
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for.end15.loopexit: ; preds = %for.body7
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br label %for.end15
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for.end15: ; preds = %for.end15.loopexit, %entry, %for.cond5.preheader
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ret void, !dbg !26
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}
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attributes #0 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0", isOptimized: true, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "no_array_bounds.cpp", directory: ".")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "test", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2)
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!5 = !DIFile(filename: "no_array_bounds.cpp", directory: ".")
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!6 = !DISubroutineType(types: !2)
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!7 = !{i32 2, !"Dwarf Version", i32 2}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{!"clang version 3.5.0"}
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!10 = !DILocation(line: 4, column: 8, scope: !11)
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!11 = distinct !DILexicalBlock(line: 4, column: 3, file: !1, scope: !4)
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!12 = !{!12, !13}
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!13 = !{!"llvm.loop.vectorize.enable", i1 true}
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!14 = !DILocation(line: 5, column: 5, scope: !15)
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!15 = distinct !DILexicalBlock(line: 4, column: 36, file: !1, scope: !11)
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!16 = !DILocation(line: 9, column: 8, scope: !17)
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!17 = distinct !DILexicalBlock(line: 9, column: 3, file: !1, scope: !4)
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!18 = !{!18, !13, !19}
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!19 = !{!"llvm.loop.vectorize.width", i32 1}
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!20 = !DILocation(line: 10, column: 5, scope: !21)
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!21 = distinct !DILexicalBlock(line: 9, column: 36, file: !1, scope: !17)
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!22 = !{!23, !23, i64 0}
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!23 = !{!"int", !24, i64 0}
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!24 = !{!"omnipotent char", !25, i64 0}
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!25 = !{!"Simple C/C++ TBAA"}
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!26 = !DILocation(line: 12, column: 1, scope: !4)
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