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37ec73c718
As discussed on llvm-dev in http://lists.llvm.org/pipermail/llvm-dev/2017-September/117301.html this changes the command line interface of llvm-dwarfdump to match the one used by the dwarfdump utility shipping on macOS. In addition to being shorter to type this format also has the advantage of allowing more than one section to be specified at the same time. In a nutshell, with this change $ llvm-dwarfdump --debug-dump=info $ llvm-dwarfdump --debug-dump=apple-objc becomes $ dwarfdump --debug-info --apple-objc Differential Revision: https://reviews.llvm.org/D37714 llvm-svn: 312970
203 lines
9.2 KiB
LLVM
203 lines
9.2 KiB
LLVM
; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck %s
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;
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; PR22296: In this testcase the DBG_VALUE describing "p5" becomes unavailable
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; because the register its address is in is clobbered and we (currently) aren't
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; smart enough to realize that the value is rematerialized immediately after the
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; DBG_VALUE and/or is actually a stack slot.
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;
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; Test that we handle this situation gracefully by omitting the DW_AT_location
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; and not asserting.
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; Note that this check may XPASS in the future if DbgValueHistoryCalculator
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; becoms smarter. That would be fine, too.
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;
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; CHECK: DW_TAG_subprogram
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; CHECK: linkage_name{{.*}}_Z2f21A
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_AT_location
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; CHECK-NEXT: DW_AT_name {{.*}}"p5"
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;
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; // Compile at -O1
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; struct A {
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; int *m1;
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; int m2;
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; };
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;
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; void f1(int *p1, int p2);
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; void __attribute__((always_inline)) f2(A p5) { f1(p5.m1, p5.m2); }
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;
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; void func(void*);
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; void func(const int &, const int&);
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; int cond();
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; void f() {
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; while (cond()) {
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; int x;
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; func(x, 0);
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; while (cond()) {
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; char y;
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; func(&y);
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; char j;
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; func(&j);
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; char I;
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; func(&I);
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; func(0, 0);
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; A g;
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; g.m1 = &x;
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; f2(g);
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; }
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; }
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; }
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; ModuleID = 'test.cpp'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.10.0"
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%struct.A = type { i32*, i32 }
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; Function Attrs: alwaysinline ssp uwtable
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define void @_Z2f21A(i32* %p5.coerce0, i32 %p5.coerce1) #0 !dbg !11 {
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entry:
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tail call void @llvm.dbg.value(metadata i32* %p5.coerce0, metadata !16, metadata !33), !dbg !34
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tail call void @llvm.dbg.value(metadata i32 %p5.coerce1, metadata !16, metadata !35), !dbg !34
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tail call void @llvm.dbg.declare(metadata %struct.A* undef, metadata !16, metadata !36), !dbg !34
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tail call void @_Z2f1Pii(i32* %p5.coerce0, i32 %p5.coerce1), !dbg !37
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ret void, !dbg !38
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @_Z2f1Pii(i32*, i32) #2
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; Function Attrs: ssp uwtable
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define void @_Z1fv() #3 !dbg !17 {
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entry:
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%x = alloca i32, align 4
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%ref.tmp = alloca i32, align 4
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%y = alloca i8, align 1
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%j = alloca i8, align 1
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%I = alloca i8, align 1
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%ref.tmp5 = alloca i32, align 4
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%ref.tmp6 = alloca i32, align 4
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%call11 = call i32 @_Z4condv(), !dbg !39
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%tobool12 = icmp eq i32 %call11, 0, !dbg !39
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br i1 %tobool12, label %while.end7, label %while.body, !dbg !40
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while.cond.loopexit: ; preds = %while.body4, %while.body
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%call = call i32 @_Z4condv(), !dbg !39
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%tobool = icmp eq i32 %call, 0, !dbg !39
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br i1 %tobool, label %while.end7, label %while.body, !dbg !40
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while.body: ; preds = %entry, %while.cond.loopexit
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store i32 0, i32* %ref.tmp, align 4, !dbg !41, !tbaa !42
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call void @llvm.dbg.value(metadata i32* %x, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !46
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call void @_Z4funcRKiS0_(i32* dereferenceable(4) %x, i32* dereferenceable(4) %ref.tmp), !dbg !47
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%call29 = call i32 @_Z4condv(), !dbg !48
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%tobool310 = icmp eq i32 %call29, 0, !dbg !48
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br i1 %tobool310, label %while.cond.loopexit, label %while.body4, !dbg !49
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while.body4: ; preds = %while.body, %while.body4
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call void @llvm.dbg.value(metadata i8* %y, metadata !23, metadata !DIExpression(DW_OP_deref)), !dbg !50
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call void @_Z4funcPv(i8* %y), !dbg !51
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call void @llvm.dbg.value(metadata i8* %j, metadata !26, metadata !DIExpression(DW_OP_deref)), !dbg !52
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call void @_Z4funcPv(i8* %j), !dbg !53
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call void @llvm.dbg.value(metadata i8* %I, metadata !27, metadata !DIExpression(DW_OP_deref)), !dbg !54
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call void @_Z4funcPv(i8* %I), !dbg !55
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store i32 0, i32* %ref.tmp5, align 4, !dbg !56, !tbaa !42
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store i32 0, i32* %ref.tmp6, align 4, !dbg !57, !tbaa !42
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call void @_Z4funcRKiS0_(i32* dereferenceable(4) %ref.tmp5, i32* dereferenceable(4) %ref.tmp6), !dbg !58
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call void @llvm.dbg.declare(metadata %struct.A* undef, metadata !28, metadata !36), !dbg !59
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call void @llvm.dbg.value(metadata i32* %x, metadata !28, metadata !33), !dbg !59
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call void @llvm.dbg.value(metadata i32* %x, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !46
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call void @llvm.dbg.value(metadata i32* %x, metadata !60, metadata !33), !dbg !62
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call void @llvm.dbg.value(metadata i32 undef, metadata !60, metadata !35), !dbg !62
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call void @llvm.dbg.declare(metadata %struct.A* undef, metadata !60, metadata !36), !dbg !62
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call void @_Z2f1Pii(i32* %x, i32 undef), !dbg !63
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%call2 = call i32 @_Z4condv(), !dbg !48
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%tobool3 = icmp eq i32 %call2, 0, !dbg !48
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br i1 %tobool3, label %while.cond.loopexit, label %while.body4, !dbg !49
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while.end7: ; preds = %while.cond.loopexit, %entry
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ret void, !dbg !64
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}
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declare i32 @_Z4condv()
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declare void @_Z4funcRKiS0_(i32* dereferenceable(4), i32* dereferenceable(4))
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declare void @_Z4funcPv(i8*)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { alwaysinline ssp uwtable }
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attributes #1 = { nounwind readnone }
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attributes #3 = { ssp uwtable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!29, !30, !31}
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!llvm.ident = !{!32}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 (trunk 227088) (llvm/trunk 227091)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
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!1 = !DIFile(filename: "test.cpp", directory: "")
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!2 = !{}
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!3 = !{!4}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 128, align: 64, file: !1, elements: !5, identifier: "_ZTS1A")
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!5 = !{!6, !9}
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!6 = !DIDerivedType(tag: DW_TAG_member, name: "m1", line: 2, size: 64, align: 64, file: !1, scope: !4, baseType: !7)
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!7 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !8)
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !DIDerivedType(tag: DW_TAG_member, name: "m2", line: 3, size: 32, align: 32, offset: 64, file: !1, scope: !4, baseType: !8)
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!11 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f21A", line: 7, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 7, file: !1, scope: !12, type: !13, variables: !15)
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!12 = !DIFile(filename: "test.cpp", directory: "")
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!13 = !DISubroutineType(types: !14)
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!14 = !{null, !4}
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!15 = !{!16}
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!16 = !DILocalVariable(name: "p5", line: 7, arg: 1, scope: !11, file: !12, type: !4)
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!17 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", line: 12, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 12, file: !1, scope: !12, type: !18, variables: !20)
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!18 = !DISubroutineType(types: !19)
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!19 = !{null}
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!20 = !{!21, !23, !26, !27, !28}
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!21 = !DILocalVariable(name: "x", line: 14, scope: !22, file: !12, type: !8)
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!22 = distinct !DILexicalBlock(line: 13, column: 18, file: !1, scope: !17)
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!23 = !DILocalVariable(name: "y", line: 17, scope: !24, file: !12, type: !25)
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!24 = distinct !DILexicalBlock(line: 16, column: 20, file: !1, scope: !22)
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!25 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!26 = !DILocalVariable(name: "j", line: 19, scope: !24, file: !12, type: !25)
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!27 = !DILocalVariable(name: "I", line: 21, scope: !24, file: !12, type: !25)
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!28 = !DILocalVariable(name: "g", line: 24, scope: !24, file: !12, type: !4)
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!29 = !{i32 2, !"Dwarf Version", i32 2}
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!30 = !{i32 2, !"Debug Info Version", i32 3}
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!31 = !{i32 1, !"PIC Level", i32 2}
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!32 = !{!"clang version 3.7.0 (trunk 227088) (llvm/trunk 227091)"}
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!33 = !DIExpression(DW_OP_LLVM_fragment, 0, 8)
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!34 = !DILocation(line: 7, column: 42, scope: !11)
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!35 = !DIExpression(DW_OP_LLVM_fragment, 8, 4)
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!36 = !DIExpression()
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!37 = !DILocation(line: 7, column: 48, scope: !11)
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!38 = !DILocation(line: 7, column: 66, scope: !11)
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!39 = !DILocation(line: 13, column: 10, scope: !17)
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!40 = !DILocation(line: 13, column: 3, scope: !17)
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!41 = !DILocation(line: 15, column: 13, scope: !22)
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!42 = !{!43, !43, i64 0}
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!43 = !{!"int", !44, i64 0}
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!44 = !{!"omnipotent char", !45, i64 0}
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!45 = !{!"Simple C/C++ TBAA"}
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!46 = !DILocation(line: 14, column: 9, scope: !22)
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!47 = !DILocation(line: 15, column: 5, scope: !22)
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!48 = !DILocation(line: 16, column: 12, scope: !22)
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!49 = !DILocation(line: 16, column: 5, scope: !22)
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!50 = !DILocation(line: 17, column: 12, scope: !24)
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!51 = !DILocation(line: 18, column: 7, scope: !24)
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!52 = !DILocation(line: 19, column: 12, scope: !24)
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!53 = !DILocation(line: 20, column: 7, scope: !24)
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!54 = !DILocation(line: 21, column: 12, scope: !24)
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!55 = !DILocation(line: 22, column: 7, scope: !24)
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!56 = !DILocation(line: 23, column: 12, scope: !24)
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!57 = !DILocation(line: 23, column: 15, scope: !24)
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!58 = !DILocation(line: 23, column: 7, scope: !24)
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!59 = !DILocation(line: 24, column: 9, scope: !24)
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!60 = !DILocalVariable(name: "p5", line: 7, arg: 1, scope: !11, file: !12, type: !4)
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!61 = distinct !DILocation(line: 26, column: 7, scope: !24)
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!62 = !DILocation(line: 7, column: 42, scope: !11, inlinedAt: !61)
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!63 = !DILocation(line: 7, column: 48, scope: !11, inlinedAt: !61)
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!64 = !DILocation(line: 29, column: 1, scope: !17)
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