[llvm] [llvm-profgen] Loading binary functions from .symtab when DWARF info is incomplete (PR #163654)

via llvm-commits llvm-commits at lists.llvm.org
Wed Oct 15 15:58:06 PDT 2025


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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/ProfileData/SampleProf.h llvm/tools/llvm-profgen/ProfileGenerator.cpp llvm/tools/llvm-profgen/ProfiledBinary.cpp llvm/tools/llvm-profgen/ProfiledBinary.h --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/include/llvm/ProfileData/SampleProf.h b/llvm/include/llvm/ProfileData/SampleProf.h
index 4adbe13b6..dadf718d0 100644
--- a/llvm/include/llvm/ProfileData/SampleProf.h
+++ b/llvm/include/llvm/ProfileData/SampleProf.h
@@ -1214,7 +1214,7 @@ public:
     // Note the sequence of the suffixes in the knownSuffixes array matters.
     // If suffix "A" is appended after the suffix "B", "A" should be in front
     // of "B" in knownSuffixes.
-    SmallVector<StringRef> KnownSuffixes ({LLVMSuffix, PartSuffix, UniqSuffix});
+    SmallVector<StringRef> KnownSuffixes({LLVMSuffix, PartSuffix, UniqSuffix});
     return getCanonicalFnName(FnName, KnownSuffixes, Attr);
   }
 
diff --git a/llvm/tools/llvm-profgen/ProfileGenerator.cpp b/llvm/tools/llvm-profgen/ProfileGenerator.cpp
index 058b154fc..0478d5568 100644
--- a/llvm/tools/llvm-profgen/ProfileGenerator.cpp
+++ b/llvm/tools/llvm-profgen/ProfileGenerator.cpp
@@ -492,13 +492,18 @@ bool ProfileGeneratorBase::collectFunctionsFromRawProfile(
   }
 
   if (ErrStkAddr)
-    WithColor::warning() << "Cannot find Stack Address from DWARF Info: " << ErrStkAddr << "/" << TotalStkAddr << " missing\n";
+    WithColor::warning() << "Cannot find Stack Address from DWARF Info: "
+                         << ErrStkAddr << "/" << TotalStkAddr << " missing\n";
   if (ErrFuncRange)
-    WithColor::warning() << "Cannot find Function Range from DWARF Info: " << ErrFuncRange << "/" << TotalFuncRange << " missing\n";
+    WithColor::warning() << "Cannot find Function Range from DWARF Info: "
+                         << ErrFuncRange << "/" << TotalFuncRange
+                         << " missing\n";
   if (ErrSrc)
-    WithColor::warning() << "Cannot find LBR Source Addr from DWARF Info: " << ErrSrc << "/" << TotalSrc << " missing\n";
+    WithColor::warning() << "Cannot find LBR Source Addr from DWARF Info: "
+                         << ErrSrc << "/" << TotalSrc << " missing\n";
   if (ErrTgt)
-    WithColor::warning() << "Cannot find LBR Target Addr from DWARF Info: " << ErrTgt << "/" << TotalTgt << " missing\n";
+    WithColor::warning() << "Cannot find LBR Target Addr from DWARF Info: "
+                         << ErrTgt << "/" << TotalTgt << " missing\n";
   return true;
 }
 
diff --git a/llvm/tools/llvm-profgen/ProfiledBinary.cpp b/llvm/tools/llvm-profgen/ProfiledBinary.cpp
index 2d9a13b97..aa385c0db 100644
--- a/llvm/tools/llvm-profgen/ProfiledBinary.cpp
+++ b/llvm/tools/llvm-profgen/ProfiledBinary.cpp
@@ -822,8 +822,7 @@ void ProfiledBinary::populateSymbolAddressList(const ObjectFile *Obj) {
   }
 }
 
-void ProfiledBinary::populateSymbolsFromElf(
-    const ObjectFile *Obj) {
+void ProfiledBinary::populateSymbolsFromElf(const ObjectFile *Obj) {
   // Load binary functions from ELF symbol table when DWARF info is incomplete
   StringRef FileName = Obj->getFileName();
   for (const ELFSymbolRef Symbol : Obj->symbols()) {
@@ -836,8 +835,9 @@ void ProfiledBinary::populateSymbolsFromElf(
       continue;
 
     SmallVector<StringRef> Suffixes(
-      {".destroy", ".resume", ".llvm.", ".cold", ".warm"});
-    const StringRef SymName = FunctionSamples::getCanonicalFnName(Name, Suffixes);
+        {".destroy", ".resume", ".llvm.", ".cold", ".warm"});
+    const StringRef SymName =
+        FunctionSamples::getCanonicalFnName(Name, Suffixes);
 
     auto Ret = BinaryFunctions.emplace(SymName, BinaryFunction());
     auto &Func = Ret.first->second;

``````````

</details>


https://github.com/llvm/llvm-project/pull/163654


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