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llvm-mirror/test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll

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Disable emission of aranges by default and add a command line option to enable again that will be matched with a commit to enable in clang. llvm-svn: 201378
2014-02-14 02:26:55 +01:00
; RUN: llc -generate-arange-section < %s | FileCheck %s
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
; CHECK: .short 2 # DWARF Arange version number
; CHECK: # Segment Size
; CHECK-NOT: debug_loc
; CHECK: .quad global
; CHECK-NOT: debug_loc
; CHECK: # ARange terminator
; --- Source code ---
; Generated with "clang -g -O1 -S -emit-llvm"
; int global = 2;
; int foo(int bar) { return bar; }
; int foo2(int bar2) { return bar2; }
; int main() {
; return foo(2) + foo2(1) + global;
; }
; ModuleID = 'tmp/debug_ranges/a.cc'
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
source_filename = "test/DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll"
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
@global = global i32 2, align 4, !dbg !0
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
; Function Attrs: nounwind readnone uwtable
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
define i32 @_Z3fooi(i32 %bar) #0 !dbg !9 {
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
entry:
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
tail call void @llvm.dbg.value(metadata i32 %bar, i64 0, metadata !13, metadata !14), !dbg !15
ret i32 %bar, !dbg !15
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
}
; Function Attrs: nounwind readnone uwtable
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
define i32 @_Z4foo2i(i32 %bar2) #0 !dbg !16 {
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
entry:
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
tail call void @llvm.dbg.value(metadata i32 %bar2, i64 0, metadata !18, metadata !14), !dbg !19
ret i32 %bar2, !dbg !19
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
}
; Function Attrs: nounwind readonly uwtable
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
define i32 @main() #1 !dbg !20 {
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
entry:
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
%call = tail call i32 @_Z3fooi(i32 2), !dbg !23
%call1 = tail call i32 @_Z4foo2i(i32 1), !dbg !23
%add = add nsw i32 %call1, %call, !dbg !23
%0 = load i32, i32* @global, align 4, !dbg !23, !tbaa !24
%add2 = add nsw i32 %add, %0, !dbg !23
ret i32 %add2, !dbg !23
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
}
; Function Attrs: nounwind readnone
Move the complex address expression out of DIVariable and into an extra argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! Note: I accidentally committed a bogus older version of this patch previously. llvm-svn: 218787
2014-10-01 20:55:02 +02:00
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readonly uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind readnone }
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
!llvm.dbg.cu = !{!4}
!llvm.module.flags = !{!7, !8}
Remove wild .debug_aranges entries generated from unimportant labels r191052 added emitting .debug_aranges to Clang, but this functionality is broken: it uses all MC labels added in DWARF Asm printer, including the labels for build relocations between different DWARF sections, like .Lsection_line or .Ldebug_loc0. As a result, if any DIE .debug_info would contain "DW_AT_location=0x123" attribute, .debug_aranges would also contain a range starting from 0x123, breaking tools that rely on this section. This patch fixes this by using only MC labels that corresponds to the addresses in the user program. llvm-svn: 191884
2013-10-03 10:54:43 +02:00
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
!0 = !DIGlobalVariableExpression(var: !1)
!1 = !DIGlobalVariable(name: "global", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
!2 = !DIFile(filename: "tmp/debug_ranges/a.cc", directory: "/")
!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4 (191881)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
!5 = !{}
!6 = !{!0}
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 1, !"Debug Info Version", i32 3}
!9 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !2, file: !2, line: 2, type: !10, isLocal: false, isDefinition: true, scopeLine: 2, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !12)
!10 = !DISubroutineType(types: !11)
!11 = !{!3, !3}
IR: Make metadata typeless in assembly Now that `Metadata` is typeless, reflect that in the assembly. These are the matching assembly changes for the metadata/value split in r223802. - Only use the `metadata` type when referencing metadata from a call intrinsic -- i.e., only when it's used as a `Value`. - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode` when referencing it from call intrinsics. So, assembly like this: define @foo(i32 %v) { call void @llvm.foo(metadata !{i32 %v}, metadata !0) call void @llvm.foo(metadata !{i32 7}, metadata !0) call void @llvm.foo(metadata !1, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{metadata !3}, metadata !0) ret void, !bar !2 } !0 = metadata !{metadata !2} !1 = metadata !{i32* @global} !2 = metadata !{metadata !3} !3 = metadata !{} turns into this: define @foo(i32 %v) { call void @llvm.foo(metadata i32 %v, metadata !0) call void @llvm.foo(metadata i32 7, metadata !0) call void @llvm.foo(metadata i32* @global, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{!3}, metadata !0) ret void, !bar !2 } !0 = !{!2} !1 = !{i32* @global} !2 = !{!3} !3 = !{} I wrote an upgrade script that handled almost all of the tests in llvm and many of the tests in cfe (even handling many `CHECK` lines). I've attached it (or will attach it in a moment if you're speedy) to PR21532 to help everyone update their out-of-tree testcases. This is part of PR21532. llvm-svn: 224257
2014-12-15 20:07:53 +01:00
!12 = !{!13}
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
!13 = !DILocalVariable(name: "bar", arg: 1, scope: !9, file: !2, line: 2, type: !3)
!14 = !DIExpression()
!15 = !DILocation(line: 2, scope: !9)
!16 = distinct !DISubprogram(name: "foo2", linkageName: "_Z4foo2i", scope: !2, file: !2, line: 3, type: !10, isLocal: false, isDefinition: true, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !17)
IR: Make metadata typeless in assembly Now that `Metadata` is typeless, reflect that in the assembly. These are the matching assembly changes for the metadata/value split in r223802. - Only use the `metadata` type when referencing metadata from a call intrinsic -- i.e., only when it's used as a `Value`. - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode` when referencing it from call intrinsics. So, assembly like this: define @foo(i32 %v) { call void @llvm.foo(metadata !{i32 %v}, metadata !0) call void @llvm.foo(metadata !{i32 7}, metadata !0) call void @llvm.foo(metadata !1, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{metadata !3}, metadata !0) ret void, !bar !2 } !0 = metadata !{metadata !2} !1 = metadata !{i32* @global} !2 = metadata !{metadata !3} !3 = metadata !{} turns into this: define @foo(i32 %v) { call void @llvm.foo(metadata i32 %v, metadata !0) call void @llvm.foo(metadata i32 7, metadata !0) call void @llvm.foo(metadata i32* @global, metadata !0) call void @llvm.foo(metadata !3, metadata !0) call void @llvm.foo(metadata !{!3}, metadata !0) ret void, !bar !2 } !0 = !{!2} !1 = !{i32* @global} !2 = !{!3} !3 = !{} I wrote an upgrade script that handled almost all of the tests in llvm and many of the tests in cfe (even handling many `CHECK` lines). I've attached it (or will attach it in a moment if you're speedy) to PR21532 to help everyone update their out-of-tree testcases. This is part of PR21532. llvm-svn: 224257
2014-12-15 20:07:53 +01:00
!17 = !{!18}
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 01:45:21 +01:00
!18 = !DILocalVariable(name: "bar2", arg: 1, scope: !16, file: !2, line: 3, type: !3)
!19 = !DILocation(line: 3, scope: !16)
!20 = distinct !DISubprogram(name: "main", scope: !2, file: !2, line: 5, type: !21, isLocal: false, isDefinition: true, scopeLine: 5, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !5)
!21 = !DISubroutineType(types: !22)
!22 = !{!3}
!23 = !DILocation(line: 6, scope: !20)
!24 = !{!25, !25, i64 0}
!25 = !{!"int", !26}
!26 = !{!"omnipotent char", !27}
!27 = !{!"Simple C/C++ TBAA"}
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