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llvm-project/clang/test/CodeGenCXX/debug-info-function-context.cpp

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[DWARF] Make sure file entry for artificial functions has an MD5 checksum The DIFile cache was keyed on a string pointer instead of string content, which was causing misses and resulted in an entry without a checksum. In DWARF v5 if any checksum is missing, we can't write any to the output file, so this had consequences. Fixes https://github.com/llvm/llvm-project/issues/63955 Differential revision: https://reviews.llvm.org/D155991
2023-07-21 13:34:41 -07:00
// RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -triple x86_64-pc-linux-gnu %s \
Reapply "[DebugInfo] Alternate (more efficient) MD5 fix" D155991 changed the file lookup to do a full string compare on the filename; however, this added ~0.5% to compile time with -g. Go back to the previous pointer-based lookup, but capture the main file's checksum as well as its name to use when creating the extra DIFile entry. This causes all entries to be consistent and also avoids computing the checksum twice. This reverts commit 5956648fc3ba11dd6b0d0f2d1d9b923e7f80f247. There was a string lifetime issue that is now corrected. Differential Revision: https://reviews.llvm.org/D156571
2023-08-18 07:33:27 -07:00
// RUN: -dwarf-version=5 -main-file-name debug-info-function-context.cpp -o - | FileCheck %s
Add the context that a function was created in as the context for the function, not the context of the context. llvm-svn: 192862
2013-10-17 01:31:21 +00:00
struct C {
void member_function();
static int static_member_function();
static int static_member_variable;
};
int C::static_member_variable = 0;
void C::member_function() { static_member_variable = 0; }
int C::static_member_function() { return static_member_variable; }
C global_variable;
int global_function() { return -1; }
namespace ns {
void global_namespace_function() { global_variable.member_function(); }
int global_namespace_variable = 1;
}
[DWARF] Make sure file entry for artificial functions has an MD5 checksum The DIFile cache was keyed on a string pointer instead of string content, which was causing misses and resulted in an entry without a checksum. In DWARF v5 if any checksum is missing, we can't write any to the output file, so this had consequences. Fixes https://github.com/llvm/llvm-project/issues/63955 Differential revision: https://reviews.llvm.org/D155991
2023-07-21 13:34:41 -07:00
// Generate the artificial global functions to initialize a global.
int global_initialized_variable = C::static_member_function();
Add the context that a function was created in as the context for the function, not the context of the context. llvm-svn: 192862
2013-10-17 01:31:21 +00:00
// Check that the functions that belong to C have C as a context and the
// functions that belong to the namespace have it as a context, and the global
[DWARF] Make sure file entry for artificial functions has an MD5 checksum The DIFile cache was keyed on a string pointer instead of string content, which was causing misses and resulted in an entry without a checksum. In DWARF v5 if any checksum is missing, we can't write any to the output file, so this had consequences. Fixes https://github.com/llvm/llvm-project/issues/63955 Differential revision: https://reviews.llvm.org/D155991
2023-07-21 13:34:41 -07:00
// functions (user-defined and artificial) have the file as a context.
Add the context that a function was created in as the context for the function, not the context of the context. llvm-svn: 192862
2013-10-17 01:31:21 +00:00
[DWARF] Make sure file entry for artificial functions has an MD5 checksum The DIFile cache was keyed on a string pointer instead of string content, which was causing misses and resulted in an entry without a checksum. In DWARF v5 if any checksum is missing, we can't write any to the output file, so this had consequences. Fixes https://github.com/llvm/llvm-project/issues/63955 Differential revision: https://reviews.llvm.org/D155991
2023-07-21 13:34:41 -07:00
// The first DIFile is for the CU, the second is what everything else uses.
// We're using DWARF v5 so both should have MD5 checksums.
Reapply "[DebugInfo] Alternate (more efficient) MD5 fix" D155991 changed the file lookup to do a full string compare on the filename; however, this added ~0.5% to compile time with -g. Go back to the previous pointer-based lookup, but capture the main file's checksum as well as its name to use when creating the extra DIFile entry. This causes all entries to be consistent and also avoids computing the checksum twice. This reverts commit 5956648fc3ba11dd6b0d0f2d1d9b923e7f80f247. There was a string lifetime issue that is now corrected. Differential Revision: https://reviews.llvm.org/D156571
2023-08-18 07:33:27 -07:00
// CHECK: !DIFile(filename: "{{.*}}context.cpp",{{.*}} checksumkind: CSK_MD5, checksum: [[CKSUM:".*"]]
// CHECK: ![[FILE:[0-9]+]] = !DIFile(filename: "{{.*}}context.cpp",{{.*}} checksumkind: CSK_MD5, checksum: [[CKSUM]]
DebugInfo: Adapt to loss of DITypeRef in LLVM r267296 LLVM stopped using MDString-based type references, and DIBuilder no longer fills 'retainedTypes:' with every DICompositeType that has an 'identifier:' field. There are just minor changes to keep the same behaviour in CFE. Leaving 'retainedTypes:' unfilled has a dramatic impact on the output order of the IR though. There are a huge number of testcase changes, which were unfortunately not really scriptable. llvm-svn: 267297
2016-04-23 21:08:27 +00:00
// CHECK: ![[C:[0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C",
Update to match LLVM changes for PR27284. (Reverse the ownership between DICompileUnit and DISubprogram.) http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266445
2016-04-15 15:55:45 +00:00
// CHECK: ![[NS:.*]] = !DINamespace(name: "ns"
[DebugInfo] NFC Clang test changes for: IR/Bitcode changes for DISubprogram flags. Differential Revision: https://reviews.llvm.org/D54756 llvm-svn: 347807
2018-11-28 21:18:07 +00:00
// CHECK: !DISubprogram(name: "member_function",{{.*}} scope: ![[C]],{{.*}} DISPFlagDefinition
Revert "Just call getContextDescriptor to get the context for subprograms" while I investigate as it seems to be causing issues with the gdb bot. This reverts commit r204874. llvm-svn: 204896
2014-03-27 05:29:34 +00:00
[DebugInfo] NFC Clang test changes for: IR/Bitcode changes for DISubprogram flags. Differential Revision: https://reviews.llvm.org/D54756 llvm-svn: 347807
2018-11-28 21:18:07 +00:00
// CHECK: !DISubprogram(name: "static_member_function",{{.*}} scope: ![[C]],{{.*}} DISPFlagDefinition
Add the context that a function was created in as the context for the function, not the context of the context. llvm-svn: 192862
2013-10-17 01:31:21 +00:00
[DebugInfo] NFC Clang test changes for: IR/Bitcode changes for DISubprogram flags. Differential Revision: https://reviews.llvm.org/D54756 llvm-svn: 347807
2018-11-28 21:18:07 +00:00
// CHECK: !DISubprogram(name: "global_function",{{.*}} scope: ![[FILE]],{{.*}} DISPFlagDefinition
Revert "Just call getContextDescriptor to get the context for subprograms" while I investigate as it seems to be causing issues with the gdb bot. This reverts commit r204874. llvm-svn: 204896
2014-03-27 05:29:34 +00:00
[DebugInfo] NFC Clang test changes for: IR/Bitcode changes for DISubprogram flags. Differential Revision: https://reviews.llvm.org/D54756 llvm-svn: 347807
2018-11-28 21:18:07 +00:00
// CHECK: !DISubprogram(name: "global_namespace_function",{{.*}} scope: ![[NS]],{{.*}} DISPFlagDefinition
[DWARF] Make sure file entry for artificial functions has an MD5 checksum The DIFile cache was keyed on a string pointer instead of string content, which was causing misses and resulted in an entry without a checksum. In DWARF v5 if any checksum is missing, we can't write any to the output file, so this had consequences. Fixes https://github.com/llvm/llvm-project/issues/63955 Differential revision: https://reviews.llvm.org/D155991
2023-07-21 13:34:41 -07:00
// CHECK: !DISubprogram(name: "__cxx_global_var_init",{{.*}} scope: ![[FILE]],{{.*}} DISPFlagDefinition
// CHECK: !DISubprogram(linkageName: "_GLOBAL__sub_I_{{.*}}",{{.*}} scope: ![[FILE]],{{.*}} DISPFlagDefinition
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