https://github.com/kishan-kumar-s-d-444 updated
https://github.com/llvm/llvm-project/pull/145042
>From fdf7f676690f7af5109970f239eba8f34850442f Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 19:35:57 +0530
Subject: [PATCH 1/8] Update Expr.h
---
clang/include/clang/AST/Expr.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/clang/include/clang/AST/Expr.h b/clang/include/clang/AST/Expr.h
index 9fc23d30b733f..2da16d4dc069d 100644
--- a/clang/include/clang/AST/Expr.h
+++ b/clang/include/clang/AST/Expr.h
@@ -2003,7 +2003,9 @@ enum class PredefinedIdentKind {
PrettyFunction,
/// The same as PrettyFunction, except that the
/// 'virtual' keyword is omitted for virtual member functions.
- PrettyFunctionNoVirtual
+ PrettyFunctionNoVirtual,
+ FQFunction,
+ MangledFunction
};
/// [C99 6.4.2.2] - A predefined identifier such as __func__.
>From b814391bd581ab82acf30366ffd3952f3f72a490 Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 19:38:50 +0530
Subject: [PATCH 2/8] Update TokenKinds.def
---
clang/include/clang/Basic/TokenKinds.def | 3 +++
1 file changed, 3 insertions(+)
diff --git a/clang/include/clang/Basic/TokenKinds.def
b/clang/include/clang/Basic/TokenKinds.def
index 94e72fea56a68..1f9f0d60e8b02 100644
--- a/clang/include/clang/Basic/TokenKinds.def
+++ b/clang/include/clang/Basic/TokenKinds.def
@@ -480,6 +480,9 @@ KEYWORD(__thread , KEYALL)
KEYWORD(__FUNCTION__ , KEYALL)
KEYWORD(__PRETTY_FUNCTION__ , KEYALL)
KEYWORD(__auto_type , KEYALL)
+KEYWORD(__fq_func__, KEYALL)
+KEYWORD(__mangled_func__, KEYALL)
+
// MS Extensions
KEYWORD(__FUNCDNAME__ , KEYMS)
>From fe6fc7ba8183b267ee00fdc66c3060f1449194b2 Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 19:39:32 +0530
Subject: [PATCH 3/8] Update Expr.cpp
---
clang/lib/AST/Expr.cpp | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index c3722c65abf6e..12b6745536d53 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -653,6 +653,10 @@ StringRef
PredefinedExpr::getIdentKindName(PredefinedIdentKind IK) {
return "__FUNCTION__";
case PredefinedIdentKind::FuncDName:
return "__FUNCDNAME__";
+ case PredefinedIdentKind::FQFunction:
+ return "__fq_func__";
+ case PredefinedIdentKind::MangledFunction:
+ return "__mangled_func__";
case PredefinedIdentKind::LFunction:
return "L__FUNCTION__";
case PredefinedIdentKind::PrettyFunction:
@@ -674,6 +678,34 @@ std::string
PredefinedExpr::ComputeName(PredefinedIdentKind IK,
bool ForceElaboratedPrinting) {
ASTContext &Context = CurrentDecl->getASTContext();
+ if (IK == PredefinedIdentKind::FQFunction) {
+ if (const auto *ND = dyn_cast<NamedDecl>(CurrentDecl))
+ return ND->getQualifiedNameAsString();
+ return "<unknown>";
+}
+
+if (IK == PredefinedIdentKind::MangledFunction) {
+ if (const auto *ND = dyn_cast<NamedDecl>(CurrentDecl)) {
+ std::unique_ptr<MangleContext> MC;
+ MC.reset(Context.createMangleContext());
+ SmallString<256> Buffer;
+ llvm::raw_svector_ostream Out(Buffer);
+ GlobalDecl GD;
+ if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(ND))
+ GD = GlobalDecl(CD, Ctor_Base);
+ else if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(ND))
+ GD = GlobalDecl(DD, Dtor_Base);
+ else if (auto FD = dyn_cast<FunctionDecl>(ND)) {
+ GD = FD->isReferenceableKernel() ? GlobalDecl(FD) : GlobalDecl(ND);
+ } else
+ GD = GlobalDecl(ND);
+ MC->mangleName(GD, Out);
+ return std::string(Buffer);
+ }
+ return "<unknown>";
+}
+
+
if (IK == PredefinedIdentKind::FuncDName) {
if (const NamedDecl *ND = dyn_cast<NamedDecl>(CurrentDecl)) {
std::unique_ptr<MangleContext> MC;
>From add48ac76f28fa94ff4aed30116722a2b24799fb Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 19:40:35 +0530
Subject: [PATCH 4/8] Update SemaExpr.cpp
---
clang/lib/Sema/SemaExpr.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 413eff4aa294a..2e5cd6a821c70 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -1992,6 +1992,10 @@ static PredefinedIdentKind
getPredefinedExprKind(tok::TokenKind Kind) {
llvm_unreachable("unexpected TokenKind");
case tok::kw___func__:
return PredefinedIdentKind::Func; // [C99 6.4.2.2]
+ case tok::kw___fq_func__:
+ return PredefinedIdentKind::FQFunction;
+ case tok::kw___mangled_func__:
+ return PredefinedIdentKind::MangledFunction;
case tok::kw___FUNCTION__:
return PredefinedIdentKind::Function;
case tok::kw___FUNCDNAME__:
>From f5847a1c5a93bb0e70eae2e211abe50a1cd3677d Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 19:41:40 +0530
Subject: [PATCH 5/8] Update ParseExpr.cpp
---
clang/lib/Parse/ParseExpr.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 3cf3d4ea7d705..afd28da1e2bc4 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -1042,6 +1042,8 @@ ExprResult Parser::ParseCastExpression(CastParseKind
ParseKind,
case tok::kw_L__FUNCTION__: // primary-expression: L__FUNCTION__ [MS]
case tok::kw_L__FUNCSIG__: // primary-expression: L__FUNCSIG__ [MS]
case tok::kw___PRETTY_FUNCTION__: // primary-expression: __P..Y_F..N__ [GNU]
+ case tok::kw___fq_func__: // <-- Add this line
+ case tok::kw___mangled_func__:
// Function local predefined macros are represented by PredefinedExpr
except
// when Microsoft extensions are enabled and one of these macros is
adjacent
// to a string literal or another one of these macros.
>From 828383153d068d229b463fedf54c0df2915e35bc Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 22:54:29 +0530
Subject: [PATCH 6/8] Update README.md
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index a9b29ecbc1a3a..897840e92feec 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
# The LLVM Compiler Infrastructure
-
+//Changed//
[](https://securityscorecards.dev/viewer/?uri=github.com/llvm/llvm-project)
[](https://www.bestpractices.dev/projects/8273)
[](https://github.com/llvm/llvm-project/actions/workflows/libcxx-build-and-test.yaml?query=event%3Aschedule)
>From e03606deec5a3eda35d2529d2953752dcb7a9412 Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Fri, 20 Jun 2025 22:58:32 +0530
Subject: [PATCH 7/8] Update README.md
---
README.md | 1 -
1 file changed, 1 deletion(-)
diff --git a/README.md b/README.md
index 897840e92feec..1cbba1b409832 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
# The LLVM Compiler Infrastructure
-//Changed//
[](https://securityscorecards.dev/viewer/?uri=github.com/llvm/llvm-project)
[](https://www.bestpractices.dev/projects/8273)
[](https://github.com/llvm/llvm-project/actions/workflows/libcxx-build-and-test.yaml?query=event%3Aschedule)
>From a48e978060ea9e1119dca22c201b20b041705590 Mon Sep 17 00:00:00 2001
From: KISHAN KUMAR S D <kishankumarsd...@gmail.com>
Date: Tue, 15 Jul 2025 22:04:54 +0530
Subject: [PATCH 8/8] Update README.md
---
README.md | 142 +++++++++++++++++++++++++++++++++++++++++-------------
1 file changed, 108 insertions(+), 34 deletions(-)
diff --git a/README.md b/README.md
index 1cbba1b409832..9dabbfda2d8e7 100644
--- a/README.md
+++ b/README.md
@@ -1,43 +1,117 @@
-# The LLVM Compiler Infrastructure
-[](https://securityscorecards.dev/viewer/?uri=github.com/llvm/llvm-project)
-[](https://www.bestpractices.dev/projects/8273)
-[](https://github.com/llvm/llvm-project/actions/workflows/libcxx-build-and-test.yaml?query=event%3Aschedule)
+# Clang Enhancement: `__fq_func__` and `__mangled_func__` Support
-Welcome to the LLVM project!
+## 1) `Expr.h` → `llvm-project/clang/include/clang/AST/Expr.h`
-This repository contains the source code for LLVM, a toolkit for the
-construction of highly optimized compilers, optimizers, and run-time
-environments.
+```cpp
+enum class PredefinedIdentKind {
+ Func,
+ Function,
+ LFunction, // Same as Function, but as wide string.
+ FuncDName,
+ FuncSig,
+ LFuncSig, // Same as FuncSig, but as wide string
+ PrettyFunction,
+ /// The same as PrettyFunction, except that the
+ /// 'virtual' keyword is omitted for virtual member functions.
+ PrettyFunctionNoVirtual,
+ FQFunction,
+ MangledFunction
+};
+```
-The LLVM project has multiple components. The core of the project is
-itself called "LLVM". This contains all of the tools, libraries, and header
-files needed to process intermediate representations and convert them into
-object files. Tools include an assembler, disassembler, bitcode analyzer, and
-bitcode optimizer.
+## `2)Expr.cpp` -->`llvm-project/clang/lib/AST`
+```
+StringRef PredefinedExpr::getIdentKindName(PredefinedIdentKind IK) {
+ switch (IK) {
+ case PredefinedIdentKind::Func:
+ return "__func__";
+ case PredefinedIdentKind::Function:
+ return "__FUNCTION__";
+ case PredefinedIdentKind::FuncDName:
+ return "__FUNCDNAME__";
+ case PredefinedIdentKind::FQFunction:
+ return "__fq_func__";
+ case PredefinedIdentKind::MangledFunction:
+ return "__mangled_func__";
+ case PredefinedIdentKind::LFunction:
+ return "L__FUNCTION__";
+ case PredefinedIdentKind::PrettyFunction:
+ return "__PRETTY_FUNCTION__";
+ case PredefinedIdentKind::FuncSig:
+ return "__FUNCSIG__";
+ case PredefinedIdentKind::LFuncSig:
+ return "L__FUNCSIG__";
+ case PredefinedIdentKind::PrettyFunctionNoVirtual:
+ break;
+ }
+ llvm_unreachable("Unknown ident kind for PredefinedExpr");
+}
+```
+```
+std::string PredefinedExpr::ComputeName(PredefinedIdentKind IK,
+ const Decl *CurrentDecl,
+ bool ForceElaboratedPrinting) {
+ ASTContext &Context = CurrentDecl->getASTContext();
-C-like languages use the [Clang](https://clang.llvm.org/) frontend. This
-component compiles C, C++, Objective-C, and Objective-C++ code into LLVM
bitcode
--- and from there into object files, using LLVM.
+ if (IK == PredefinedIdentKind::FQFunction) {
+ if (const auto *ND = dyn_cast<NamedDecl>(CurrentDecl))
+ return ND->getQualifiedNameAsString();
+ return "<unknown>";
+}
-Other components include:
-the [libc++ C++ standard library](https://libcxx.llvm.org),
-the [LLD linker](https://lld.llvm.org), and more.
+if (IK == PredefinedIdentKind::MangledFunction) {
+ if (const auto *ND = dyn_cast<NamedDecl>(CurrentDecl)) {
+ std::unique_ptr<MangleContext> MC;
+ MC.reset(Context.createMangleContext());
+ SmallString<256> Buffer;
+ llvm::raw_svector_ostream Out(Buffer);
+ GlobalDecl GD;
+ if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(ND))
+ GD = GlobalDecl(CD, Ctor_Base);
+ else if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(ND))
+ GD = GlobalDecl(DD, Dtor_Base);
+ else if (auto FD = dyn_cast<FunctionDecl>(ND)) {
+ GD = FD->isReferenceableKernel() ? GlobalDecl(FD) : GlobalDecl(ND);
+ } else
+ GD = GlobalDecl(ND);
+ MC->mangleName(GD, Out);
+ return std::string(Buffer);
+ }
+ return "<unknown>";
+}
+// Remaining Code continues
+```
-## Getting the Source Code and Building LLVM
+## `3)TokenKinds.def`
-->`llvm-project/clang/include/clang/Basic/TokenKinds.def`
+```
+KEYWORD(__fq_func__, KEYALL)
+KEYWORD(__mangled_func__, KEYALL)
+```
-Consult the
-[Getting Started with
LLVM](https://llvm.org/docs/GettingStarted.html#getting-the-source-code-and-building-llvm)
-page for information on building and running LLVM.
+## `4)SemaExpr.cpp` -->`llvm-project/clang/lib/Sema/SemaExpr.cpp`
+```
+static PredefinedIdentKind getPredefinedExprKind(tok::TokenKind Kind) {
+ switch (Kind) {
+ default:
+ llvm_unreachable("unexpected TokenKind");
+ case tok::kw___func__:
+ return PredefinedIdentKind::Func;
+ case tok::kw___fq_func__:
+ return PredefinedIdentKind::FQFunction;
+ case tok::kw___mangled_func__:
+ return PredefinedIdentKind::MangledFunction;
+ // Code Continues
+```
-For information on how to contribute to the LLVM project, please take a look at
-the [Contributing to LLVM](https://llvm.org/docs/Contributing.html) guide.
+## `5)ParseExpr.cpp` -->`llvm-project/clang/lib/Parse/ParseExpr.cpp`
+ ```
+ case tok::kw_L__FUNCTION__:
+ case tok::kw_L__FUNCSIG__:
+ case tok::kw___PRETTY_FUNCTION__:
+ //Add below lines
+ case tok::kw___fq_func__:
+ case tok::kw___mangled_func__:
+ //end here
+```
-## Getting in touch
-
-Join the [LLVM Discourse forums](https://discourse.llvm.org/), [Discord
-chat](https://discord.gg/xS7Z362),
-[LLVM Office Hours](https://llvm.org/docs/GettingInvolved.html#office-hours) or
-[Regular sync-ups](https://llvm.org/docs/GettingInvolved.html#online-sync-ups).
-
-The LLVM project has adopted a [code of
conduct](https://llvm.org/docs/CodeOfConduct.html) for
-participants to all modes of communication within the project.
+
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