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llvm-project/llvm/test/DebugInfo/varargs.ll

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Attempt to unbreak an MSVC buildbot by switching to %llc_dwarf. llvm-svn: 202202
2014-02-26 07:03:00 +08:00
; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
Address review comments for r202188. This is refactoring / simplifying code, updating comments and enabling the testcase on non-x86 platforms. No functionality change. llvm-svn: 202199
2014-02-26 06:27:14 +08:00
; REQUIRES: object-emission
;
; Test debug info for variadic function arguments.
; Created from tools/clang/tests/CodeGenCXX/debug-info-varargs.cpp
;
; The ... parameter of variadic should be emitted as
; DW_TAG_unspecified_parameters.
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
;
; Normal variadic function.
Address review comments for r202188. This is refactoring / simplifying code, updating comments and enabling the testcase on non-x86 platforms. No functionality change. llvm-svn: 202199
2014-02-26 06:27:14 +08:00
; void b(int c, ...);
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
;
; CHECK: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
DebugInfo: Lazily construct subprogram definition DIEs. A further step to correctly emitting concrete out of line definitions preceeding inlined instances of the same program. To do this, emission of subprograms must be delayed until required since we don't know which (abstract only (if there's no out of line definition), concrete only (if there are no inlined instances), or both) DIEs are required at the start of the module. To reduce the test churn in the following commit that actually fixes the bug, this commit introduces the lazy DIE construction and cleans up test cases that are impacted by the changes in the resulting DIE ordering. llvm-svn: 209675
2014-05-28 02:37:48 +08:00
; CHECK: DW_AT_name {{.*}} "a"
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_formal_parameter
Address review comments for r202188. This is refactoring / simplifying code, updating comments and enabling the testcase on non-x86 platforms. No functionality change. llvm-svn: 202199
2014-02-26 06:27:14 +08:00
; CHECK-NOT: DW_TAG
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
; CHECK: DW_TAG_formal_parameter
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_unspecified_parameters
;
; CHECK: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
DebugInfo: Lazily construct subprogram definition DIEs. A further step to correctly emitting concrete out of line definitions preceeding inlined instances of the same program. To do this, emission of subprograms must be delayed until required since we don't know which (abstract only (if there's no out of line definition), concrete only (if there are no inlined instances), or both) DIEs are required at the start of the module. To reduce the test churn in the following commit that actually fixes the bug, this commit introduces the lazy DIE construction and cleans up test cases that are impacted by the changes in the resulting DIE ordering. llvm-svn: 209675
2014-05-28 02:37:48 +08:00
; CHECK: DW_AT_name {{.*}} "b"
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_formal_parameter
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_unspecified_parameters
;
DebugInfo: Lazily construct subprogram definition DIEs. A further step to correctly emitting concrete out of line definitions preceeding inlined instances of the same program. To do this, emission of subprograms must be delayed until required since we don't know which (abstract only (if there's no out of line definition), concrete only (if there are no inlined instances), or both) DIEs are required at the start of the module. To reduce the test churn in the following commit that actually fixes the bug, this commit introduces the lazy DIE construction and cleans up test cases that are impacted by the changes in the resulting DIE ordering. llvm-svn: 209675
2014-05-28 02:37:48 +08:00
; Variadic C++ member function.
; struct A { void a(int c, ...); }
;
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
; Variadic function pointer.
Address review comments for r202188. This is refactoring / simplifying code, updating comments and enabling the testcase on non-x86 platforms. No functionality change. llvm-svn: 202199
2014-02-26 06:27:14 +08:00
; void (*fptr)(int, ...);
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
;
; CHECK: DW_TAG_subroutine_type
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_formal_parameter
; CHECK-NOT: DW_TAG
; CHECK: DW_TAG_unspecified_parameters
;
; ModuleID = 'llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp'
%struct.A = type { i8 }
; Function Attrs: nounwind ssp uwtable
define void @_Z1biz(i32 %c, ...) #0 {
%1 = alloca i32, align 4
%a = alloca %struct.A, align 1
%fptr = alloca void (i32, ...)*, align 8
store i32 %c, i32* %1, align 4
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
call void @llvm.dbg.declare(metadata !{i32* %1}, metadata !21, metadata !{i32 786690}), !dbg !22
call void @llvm.dbg.declare(metadata !{%struct.A* %a}, metadata !23, metadata !{i32 786690}), !dbg !24
call void @llvm.dbg.declare(metadata !{void (i32, ...)** %fptr}, metadata !25, metadata !{i32 786690}), !dbg !27
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
store void (i32, ...)* @_Z1biz, void (i32, ...)** %fptr, align 8, !dbg !27
ret void, !dbg !28
}
; 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
2014-10-02 02:55:02 +08:00
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
attributes #0 = { nounwind ssp uwtable }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!18, !19}
!llvm.ident = !{!20}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !13, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] [DW_LANG_C_plus_plus]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!1 = metadata !{metadata !"llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", metadata !"radar/13690847"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!4 = metadata !{i32 786451, metadata !1, null, metadata !"A", i32 3, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!5 = metadata !{metadata !6}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!6 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1A", metadata !"a", metadata !"a", metadata !"_ZN1A1aEiz", i32 6, metadata !7, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !12, i32 6} ; [ DW_TAG_subprogram ] [line 6] [a]
!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
[Debug Info] remove DITrivialType and use null to represent unspecified param. Per feedback on r214111, we are going to use null to represent unspecified parameter. If the type array is {null}, it means a function that returns void; If the type array is {null, null}, it means a variadic function that returns void. In summary if we have more than one element in the type array and the last element is null, it is a variadic function. rdar://17628609 llvm-svn: 214189
2014-07-30 02:20:39 +08:00
!8 = metadata !{null, metadata !9, metadata !10, null}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!9 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
!10 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!12 = metadata !{i32 786468}
!13 = metadata !{metadata !14}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!14 = metadata !{i32 786478, metadata !1, metadata !15, metadata !"b", metadata !"b", metadata !"_Z1biz", i32 13, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32, ...)* @_Z1biz, null, null, metadata !2, i32 13} ; [ DW_TAG_subprogram ] [line 13] [def] [b]
!15 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp]
!16 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
[Debug Info] remove DITrivialType and use null to represent unspecified param. Per feedback on r214111, we are going to use null to represent unspecified parameter. If the type array is {null}, it means a function that returns void; If the type array is {null, null}, it means a variadic function that returns void. In summary if we have more than one element in the type array and the last element is null, it is a variadic function. rdar://17628609 llvm-svn: 214189
2014-07-30 02:20:39 +08:00
!17 = metadata !{null, metadata !10, null}
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!18 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!19 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!20 = metadata !{metadata !"clang version 3.5 "}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!21 = metadata !{i32 786689, metadata !14, metadata !"c", metadata !15, i32 16777229, metadata !10, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [c] [line 13]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!22 = metadata !{i32 13, i32 0, metadata !14, null}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!23 = metadata !{i32 786688, metadata !14, metadata !"a", metadata !15, i32 16, metadata !4, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [a] [line 16]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!24 = metadata !{i32 16, i32 0, metadata !14, null}
Revert "DI: Fold constant arguments into a single MDString" This reverts commit r218914 while I investigate some bots. llvm-svn: 218918
2014-10-03 06:15:31 +08:00
!25 = metadata !{i32 786688, metadata !14, metadata !"fptr", metadata !15, i32 18, metadata !26, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [fptr] [line 18]
!26 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
Debug info: Support variadic functions. Variadic functions have an unspecified parameter tag after the last argument. In IR this is represented as an unspecified parameter in the subroutine type. Paired commit with CFE r202185. rdar://problem/13690847 This re-applies r202184 + a bugfix in DwarfDebug's argument handling. llvm-svn: 202188
2014-02-26 03:57:42 +08:00
!27 = metadata !{i32 18, i32 0, metadata !14, null}
!28 = metadata !{i32 22, i32 0, metadata !14, null}