mirror of
https://github.com/RPCS3/llvm-mirror.git
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46d58287e3
- MIParser: If the successor list is not specified successors will be added based on basic block operands in the block and possible fallthrough. - MIRPrinter: Adds a new `simplify-mir` option, with that option set: Skip printing of block successor lists in cases where the parser is guaranteed to reconstruct it. This means we still print the list if some successor cannot be determined (happens for example for jump tables), if the successor order changes or branch probabilities being unequal. Differential Revision: https://reviews.llvm.org/D31262 llvm-svn: 302289
277 lines
13 KiB
YAML
277 lines
13 KiB
YAML
# RUN: llc -mtriple=arm-eabi -run-pass=livedebugvalues %s -o - | FileCheck %s
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#
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# Check that the debug information for variables are propagated into the correct blocks.
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#
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# Generated from the C source:
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#
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# int func2(int, int);
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# void func(int a) {
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# int b = func2(10, 11);
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# if (a) {
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# int c = func2(12, 13);
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# for(int i = 1; i < a; i++) {
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# func2(i, i+b);
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# }
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# func2(b,c);
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# }
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# func2(b,a);
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# }
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# CHECK: [[VAR_A:![0-9]+]] = !DILocalVariable(name: "a",
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# CHECK: [[VAR_B:![0-9]+]] = !DILocalVariable(name: "b",
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# CHECK: [[VAR_C:![0-9]+]] = !DILocalVariable(name: "c",
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# CHECK: [[VAR_I:![0-9]+]] = !DILocalVariable(name: "i",
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# CHECK: bb.0.entry
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# CHECK: DBG_VALUE debug-use %r0, debug-use _, [[VAR_A]]
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# CHECK: DBG_VALUE debug-use [[REG_A:%r[0-9]+]], debug-use _, [[VAR_A]]
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# CHECK: DBG_VALUE debug-use [[REG_B:%r[0-9]+]], debug-use _, [[VAR_B]]
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# CHECK: bb.1.if.then
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# CHECK: DBG_VALUE debug-use [[REG_B]], debug-use _, [[VAR_B]]
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# CHECK: DBG_VALUE debug-use [[REG_A]], debug-use _, [[VAR_A]]
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# CHECK: DBG_VALUE debug-use [[REG_C:%r[0-9]+]], debug-use _, [[VAR_C]]
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# CHECK: DBG_VALUE 1, 0, [[VAR_I]]
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# CHECK: bb.2.for.body
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# CHECK: DBG_VALUE debug-use [[REG_I:%r[0-9]+]], debug-use _, [[VAR_I]]
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# CHECK: DBG_VALUE debug-use [[REG_C]], debug-use _, [[VAR_C]]
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# CHECK: DBG_VALUE debug-use [[REG_B]], debug-use _, [[VAR_B]]
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# CHECK: DBG_VALUE debug-use [[REG_A]], debug-use _, [[VAR_A]]
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# CHECK: DBG_VALUE debug-use [[REG_I]], debug-use _, [[VAR_I]]
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# CHECK: bb.3.for.cond
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# CHECK: DBG_VALUE debug-use [[REG_C]], debug-use _, [[VAR_C]]
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# CHECK: DBG_VALUE debug-use [[REG_B]], debug-use _, [[VAR_B]]
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# CHECK: DBG_VALUE debug-use [[REG_A]], debug-use _, [[VAR_A]]
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# CHECK: DBG_VALUE debug-use [[REG_I]], debug-use _, [[VAR_I]]
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# CHECK: bb.4.for.cond.cleanup
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# CHECK: DBG_VALUE debug-use [[REG_C]], debug-use _, [[VAR_C]]
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# CHECK: DBG_VALUE debug-use [[REG_B]], debug-use _, [[VAR_B]]
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# CHECK: DBG_VALUE debug-use [[REG_A]], debug-use _, [[VAR_A]]
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# CHECK: bb.5.if.end
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# CHECK: DBG_VALUE debug-use [[REG_B]], debug-use _, [[VAR_B]]
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# CHECK: DBG_VALUE debug-use [[REG_A]], debug-use _, [[VAR_A]]
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--- |
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; ModuleID = '/data/kwalker/work/OpenSource-llvm/llvm/test/CodeGen/ARM/dbg-range-extension.ll'
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source_filename = "/data/kwalker/work/OpenSource-llvm/llvm/test/CodeGen/ARM/dbg-range-extension.ll"
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "arm---eabi"
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; Function Attrs: minsize nounwind optsize
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define void @func(i32 %a) local_unnamed_addr #0 !dbg !8 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !13, metadata !20), !dbg !21
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%call = tail call i32 @func2(i32 10, i32 11) #0, !dbg !22
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tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !14, metadata !20), !dbg !23
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%tobool = icmp eq i32 %a, 0, !dbg !24
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br i1 %tobool, label %if.end, label %if.then, !dbg !25
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if.then: ; preds = %entry
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%call1 = tail call i32 @func2(i32 12, i32 13) #0, !dbg !26
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tail call void @llvm.dbg.value(metadata i32 %call1, i64 0, metadata !15, metadata !20), !dbg !27
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tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !18, metadata !20), !dbg !28
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br label %for.cond, !dbg !29
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for.cond: ; preds = %for.body, %if.then
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%i.0 = phi i32 [ 1, %if.then ], [ %inc, %for.body ]
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tail call void @llvm.dbg.value(metadata i32 %i.0, i64 0, metadata !18, metadata !20), !dbg !28
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%cmp = icmp slt i32 %i.0, %a, !dbg !30
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br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !33
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for.cond.cleanup: ; preds = %for.cond
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%call3 = tail call i32 @func2(i32 %call, i32 %call1) #0, !dbg !34
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br label %if.end, !dbg !35
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for.body: ; preds = %for.cond
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%0 = add i32 %call, %i.0, !dbg !36
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%call2 = tail call i32 @func2(i32 %i.0, i32 %0) #0, !dbg !36
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%inc = add nuw nsw i32 %i.0, 1, !dbg !38
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tail call void @llvm.dbg.value(metadata i32 %inc, i64 0, metadata !18, metadata !20), !dbg !28
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br label %for.cond, !dbg !40, !llvm.loop !41
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if.end: ; preds = %for.cond.cleanup, %entry
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%call4 = tail call i32 @func2(i32 %call, i32 %a) #0, !dbg !43
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ret void, !dbg !44
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}
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; Function Attrs: minsize optsize
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declare i32 @func2(i32, i32) local_unnamed_addr #1
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #3
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attributes #0 = { minsize nounwind optsize }
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attributes #1 = { minsize optsize }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "loop.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 1, !"min_enum_size", i32 4}
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!7 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git b8f10df3679b36f51e1de7c4351b82d297825089) (http://llvm.org/git/llvm.git c2a5d16d1e3b8c49f5bbb1ff87a76ac4f88edb89)"}
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!8 = distinct !DISubprogram(name: "func", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null, !11}
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!11 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!12 = !{!13, !14, !15, !18}
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!13 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)
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!14 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !11)
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!15 = !DILocalVariable(name: "c", scope: !16, file: !1, line: 5, type: !11)
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!16 = distinct !DILexicalBlock(scope: !17, file: !1, line: 4, column: 9)
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!17 = distinct !DILexicalBlock(scope: !8, file: !1, line: 4, column: 6)
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!18 = !DILocalVariable(name: "i", scope: !19, file: !1, line: 6, type: !11)
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!19 = distinct !DILexicalBlock(scope: !16, file: !1, line: 6, column: 3)
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!20 = !DIExpression()
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!21 = !DILocation(line: 2, column: 15, scope: !8)
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!22 = !DILocation(line: 3, column: 17, scope: !8)
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!23 = !DILocation(line: 3, column: 13, scope: !8)
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!24 = !DILocation(line: 4, column: 6, scope: !17)
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!25 = !DILocation(line: 4, column: 6, scope: !8)
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!26 = !DILocation(line: 5, column: 11, scope: !16)
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!27 = !DILocation(line: 5, column: 7, scope: !16)
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!28 = !DILocation(line: 6, column: 11, scope: !19)
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!29 = !DILocation(line: 6, column: 7, scope: !19)
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!30 = !DILocation(line: 6, column: 20, scope: !31)
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!31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 1)
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!32 = distinct !DILexicalBlock(scope: !19, file: !1, line: 6, column: 3)
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!33 = !DILocation(line: 6, column: 3, scope: !31)
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!34 = !DILocation(line: 9, column: 3, scope: !16)
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!35 = !DILocation(line: 10, column: 2, scope: !16)
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!36 = !DILocation(line: 7, column: 4, scope: !37)
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!37 = distinct !DILexicalBlock(scope: !32, file: !1, line: 6, column: 30)
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!38 = !DILocation(line: 6, column: 26, scope: !39)
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!39 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3)
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!40 = !DILocation(line: 6, column: 3, scope: !39)
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!41 = distinct !{!41, !42}
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!42 = !DILocation(line: 6, column: 3, scope: !16)
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!43 = !DILocation(line: 11, column: 2, scope: !8)
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!44 = !DILocation(line: 12, column: 1, scope: !8)
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...
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---
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name: func
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alignment: 2
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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tracksRegLiveness: false
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liveins:
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- { reg: '%r0' }
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calleeSavedRegisters: [ '%lr', '%d8', '%d9', '%d10', '%d11', '%d12', '%d13',
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'%d14', '%d15', '%q4', '%q5', '%q6', '%q7', '%r4',
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'%r5', '%r6', '%r7', '%r8', '%r9', '%r10', '%r11',
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'%s16', '%s17', '%s18', '%s19', '%s20', '%s21',
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'%s22', '%s23', '%s24', '%s25', '%s26', '%s27',
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'%s28', '%s29', '%s30', '%s31', '%d8_d10', '%d9_d11',
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'%d10_d12', '%d11_d13', '%d12_d14', '%d13_d15',
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'%q4_q5', '%q5_q6', '%q6_q7', '%q4_q5_q6_q7', '%r4_r5',
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'%r6_r7', '%r8_r9', '%r10_r11', '%d8_d9_d10', '%d9_d10_d11',
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'%d10_d11_d12', '%d11_d12_d13', '%d12_d13_d14',
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'%d13_d14_d15', '%d8_d10_d12', '%d9_d11_d13', '%d10_d12_d14',
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'%d11_d13_d15', '%d8_d10_d12_d14', '%d9_d11_d13_d15',
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'%d9_d10', '%d11_d12', '%d13_d14', '%d9_d10_d11_d12',
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'%d11_d12_d13_d14' ]
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 24
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offsetAdjustment: 0
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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stack:
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- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '%lr' }
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- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '%r11' }
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- { id: 2, type: spill-slot, offset: -12, size: 4, alignment: 4, callee-saved-register: '%r7' }
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- { id: 3, type: spill-slot, offset: -16, size: 4, alignment: 4, callee-saved-register: '%r6' }
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- { id: 4, type: spill-slot, offset: -20, size: 4, alignment: 4, callee-saved-register: '%r5' }
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- { id: 5, type: spill-slot, offset: -24, size: 4, alignment: 4, callee-saved-register: '%r4' }
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body: |
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bb.0.entry:
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liveins: %r0, %r4, %r5, %r6, %r7, %r11, %lr
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%sp = frame-setup STMDB_UPD %sp, 14, _, killed %r4, killed %r5, killed %r6, killed %r7, killed %r11, killed %lr
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frame-setup CFI_INSTRUCTION def_cfa_offset 24
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frame-setup CFI_INSTRUCTION offset %lr, -4
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frame-setup CFI_INSTRUCTION offset %r11, -8
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frame-setup CFI_INSTRUCTION offset %r7, -12
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frame-setup CFI_INSTRUCTION offset %r6, -16
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frame-setup CFI_INSTRUCTION offset %r5, -20
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frame-setup CFI_INSTRUCTION offset %r4, -24
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DBG_VALUE debug-use %r0, debug-use _, !13, !20, debug-location !21
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%r4 = MOVr killed %r0, 14, _, _
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DBG_VALUE debug-use %r4, debug-use _, !13, !20, debug-location !21
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%r0 = MOVi 10, 14, _, _, debug-location !22
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%r1 = MOVi 11, 14, _, _, debug-location !22
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BL @func2, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit killed %r0, implicit killed %r1, implicit-def %sp, implicit-def %r0, debug-location !22
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%r5 = MOVr killed %r0, 14, _, _, debug-location !22
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DBG_VALUE debug-use %r5, debug-use _, !14, !20, debug-location !23
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CMPri %r4, 0, 14, _, implicit-def %cpsr, debug-location !25
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Bcc %bb.5.if.end, 0, killed %cpsr
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bb.1.if.then:
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liveins: %r4, %r5
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%r0 = MOVi 12, 14, _, _, debug-location !26
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%r1 = MOVi 13, 14, _, _, debug-location !26
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BL @func2, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit killed %r0, implicit killed %r1, implicit-def %sp, implicit-def %r0, debug-location !26
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%r6 = MOVr killed %r0, 14, _, _, debug-location !26
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DBG_VALUE debug-use %r6, debug-use _, !15, !20, debug-location !27
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%r7 = MOVi 1, 14, _, _
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DBG_VALUE 1, 0, !18, !20, debug-location !28
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B %bb.3.for.cond
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bb.2.for.body:
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liveins: %r4, %r5, %r6, %r7
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%r1 = ADDrr %r5, %r7, 14, _, _, debug-location !36
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%r0 = MOVr %r7, 14, _, _, debug-location !36
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BL @func2, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit killed %r0, implicit killed %r1, implicit-def %sp, implicit-def dead %r0, debug-location !36
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%r7 = ADDri killed %r7, 1, 14, _, _, debug-location !38
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DBG_VALUE debug-use %r7, debug-use _, !18, !20, debug-location !28
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bb.3.for.cond:
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liveins: %r4, %r5, %r6, %r7
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DBG_VALUE debug-use %r7, debug-use _, !18, !20, debug-location !28
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CMPrr %r7, %r4, 14, _, implicit-def %cpsr, debug-location !33
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Bcc %bb.2.for.body, 11, killed %cpsr, debug-location !33
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bb.4.for.cond.cleanup:
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liveins: %r4, %r5, %r6
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%r0 = MOVr %r5, 14, _, _, debug-location !34
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%r1 = MOVr killed %r6, 14, _, _, debug-location !34
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BL @func2, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit killed %r0, implicit killed %r1, implicit-def %sp, implicit-def dead %r0, debug-location !34
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bb.5.if.end:
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liveins: %r4, %r5
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%r0 = MOVr killed %r5, 14, _, _, debug-location !43
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%r1 = MOVr killed %r4, 14, _, _, debug-location !43
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%sp = LDMIA_UPD %sp, 14, _, def %r4, def %r5, def %r6, def %r7, def %r11, def %lr, debug-location !43
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TAILJMPd @func2, implicit %sp, implicit %sp, implicit killed %r0, implicit killed %r1, debug-location !43
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...
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