[PATCH] D87147: PR-47391 : Two DIFile entries are describing the same file two different ways
David Blaikie via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Jan 8 22:11:47 PST 2021
This revision was automatically updated to reflect the committed changes.
Closed by commit rG33c8e16f660d: PR47391: Canonicalize DIFiles (authored by umesh.kalappa0, committed by dblaikie).
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D87147/new/
https://reviews.llvm.org/D87147
Files:
clang/lib/CodeGen/CGDebugInfo.cpp
clang/test/CodeGen/debug-info-oslog.c
clang/test/CodeGenCXX/difile_entry.cpp
Index: clang/test/CodeGenCXX/difile_entry.cpp
===================================================================
--- /dev/null
+++ clang/test/CodeGenCXX/difile_entry.cpp
@@ -0,0 +1,12 @@
+// RUN: rm -rf %t/test_dir
+// RUN: mkdir -p %t/test_dir
+// RUN: cd %t/test_dir
+// RUN: cp %s .
+// RUN: %clang_cc1 -main-file-name difile_entry.cpp -debug-info-kind=limited ../test_dir/difile_entry.cpp -std=c++11 -emit-llvm -o - | FileCheck ../test_dir/difile_entry.cpp
+int x();
+static int i = x();
+
+// CHECK: [[FILE: *]] = !DIFile(filename: "{{.*}}difile_entry.cpp",
+// CHECK: {{.*}} = distinct !DISubprogram(name: "__cxx_global_var_init", scope: {{.*}}, file: [[FILE]]
+// CHECK: {{.*}} = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_difile_entry.cpp", scope: {{.*}}, file: [[FILE]]
+
Index: clang/test/CodeGen/debug-info-oslog.c
===================================================================
--- clang/test/CodeGen/debug-info-oslog.c
+++ clang/test/CodeGen/debug-info-oslog.c
@@ -11,5 +11,5 @@
// number between file and type.
// CHECK: distinct !DISubprogram(name: "__os_log_helper_1_0_1_4_0",
-// CHECK-SAME: file: !{{[0-9+]}}, type
+// CHECK-SAME: file: !{{.*}}, type
// CHECK-SAME: flags: DIFlagArtificial
Index: clang/lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- clang/lib/CodeGen/CGDebugInfo.cpp
+++ clang/lib/CodeGen/CGDebugInfo.cpp
@@ -404,17 +404,23 @@
}
llvm::DIFile *CGDebugInfo::getOrCreateFile(SourceLocation Loc) {
- if (!Loc.isValid())
- // If Location is not valid then use main input file.
- return TheCU->getFile();
-
SourceManager &SM = CGM.getContext().getSourceManager();
- PresumedLoc PLoc = SM.getPresumedLoc(Loc);
+ StringRef FileName;
+ FileID FID;
- StringRef FileName = PLoc.getFilename();
- if (PLoc.isInvalid() || FileName.empty())
- // If the location is not valid then use main input file.
- return TheCU->getFile();
+ if (Loc.isInvalid()) {
+ FileName = TheCU->getFile()->getFilename();
+ } else {
+ PresumedLoc PLoc = SM.getPresumedLoc(Loc);
+ FileName = PLoc.getFilename();
+
+ if (FileName.empty()) {
+ FileName = TheCU->getFile()->getFilename();
+ } else {
+ FileName = PLoc.getFilename();
+ }
+ FID = PLoc.getFileID();
+ }
// Cache the results.
auto It = DIFileCache.find(FileName.data());
@@ -426,11 +432,7 @@
SmallString<32> Checksum;
- // Compute the checksum if possible. If the location is affected by a #line
- // directive that refers to a file, PLoc will have an invalid FileID, and we
- // will correctly get no checksum.
- Optional<llvm::DIFile::ChecksumKind> CSKind =
- computeChecksum(PLoc.getFileID(), Checksum);
+ Optional<llvm::DIFile::ChecksumKind> CSKind = computeChecksum(FID, Checksum);
Optional<llvm::DIFile::ChecksumInfo<StringRef>> CSInfo;
if (CSKind)
CSInfo.emplace(*CSKind, Checksum);
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