https://github.com/jyknight updated 
https://github.com/llvm/llvm-project/pull/149602

>From 296b9b160564882e209544ed7a2db0adc62d3246 Mon Sep 17 00:00:00 2001
From: James Y Knight <jykni...@google.com>
Date: Fri, 18 Jul 2025 17:44:38 -0400
Subject: [PATCH 1/2] [clang-format] Google Style: disable
 DerivePointerAlignment.

The Google C++ Style Guide is being changed to specify that spaces
should go after the asterisk/ampersand, rather than permitting either
before or after on a file-by-file basis.

ObjC style is not being modified.
---
 clang/lib/Format/Format.cpp           |  3 ++-
 clang/unittests/Format/FormatTest.cpp | 22 +++++++++++++---------
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 62feb3db0ed5e..c8462891f8290 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -1753,7 +1753,7 @@ FormatStyle getGoogleStyle(FormatStyle::LanguageKind 
Language) {
   GoogleStyle.AttributeMacros.push_back("absl_nullable");
   GoogleStyle.AttributeMacros.push_back("absl_nullability_unknown");
   GoogleStyle.BreakTemplateDeclarations = FormatStyle::BTDS_Yes;
-  GoogleStyle.DerivePointerAlignment = true;
+  GoogleStyle.DerivePointerAlignment = false;
   GoogleStyle.IncludeStyle.IncludeBlocks = tooling::IncludeStyle::IBS_Regroup;
   GoogleStyle.IncludeStyle.IncludeCategories = {{"^<ext/.*\\.h>", 2, 0, false},
                                                 {"^<.*\\.h>", 1, 0, false},
@@ -1862,6 +1862,7 @@ FormatStyle getGoogleStyle(FormatStyle::LanguageKind 
Language) {
   } else if (Language == FormatStyle::LK_ObjC) {
     GoogleStyle.AlwaysBreakBeforeMultilineStrings = false;
     GoogleStyle.ColumnLimit = 100;
+    GoogleStyle.DerivePointerAlignment = true;
     // "Regroup" doesn't work well for ObjC yet (main header heuristic,
     // relationship between ObjC standard library headers and other heades,
     // #imports, etc.)
diff --git a/clang/unittests/Format/FormatTest.cpp 
b/clang/unittests/Format/FormatTest.cpp
index 0bc1c6d45656e..195d045573b4d 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -8571,10 +8571,10 @@ TEST_F(FormatTest, BreaksFunctionDeclarations) {
                "operator<<(const SomeLooooooooooooooooooooooooogType 
&other);");
   verifyGoogleFormat(
       "SomeLoooooooooooooooooooooooooooooogType operator>>(\n"
-      "    const SomeLooooooooogType &a, const SomeLooooooooogType &b);");
+      "    const SomeLooooooooogType& a, const SomeLooooooooogType& b);");
   verifyGoogleFormat(
       "SomeLoooooooooooooooooooooooooooooogType operator<<(\n"
-      "    const SomeLooooooooogType &a, const SomeLooooooooogType &b);");
+      "    const SomeLooooooooogType& a, const SomeLooooooooogType& b);");
 
   verifyFormat("void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
                "    int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa = 1);");
@@ -8583,7 +8583,7 @@ TEST_F(FormatTest, BreaksFunctionDeclarations) {
   verifyGoogleFormat(
       "typename aaaaaaaaaa<aaaaaa>::aaaaaaaaaaa\n"
       "aaaaaaaaaa<aaaaaa>::aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
-      "    bool *aaaaaaaaaaaaaaaaaa, bool *aa) {}");
+      "    bool* aaaaaaaaaaaaaaaaaa, bool* aa) {}");
   verifyGoogleFormat("template <typename T>\n"
                      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
                      "aaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaaaaa(\n"
@@ -12287,6 +12287,7 @@ TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) {
       "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
 
   verifyGoogleFormat("int const* a = &b;");
+  verifyFormat("int const* a = &b;", "int const *a = &b;", getGoogleStyle());
   verifyGoogleFormat("**outparam = 1;");
   verifyGoogleFormat("*outparam = a * b;");
   verifyGoogleFormat("int main(int argc, char** argv) {}");
@@ -12891,27 +12892,30 @@ TEST_F(FormatTest, UnderstandsEllipsis) {
 }
 
 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) {
+  FormatStyle Style = getLLVMStyle();
+  Style.DerivePointerAlignment = true;
+
   verifyFormat("int *a;\n"
                "int *a;\n"
                "int *a;",
                "int *a;\n"
                "int* a;\n"
                "int *a;",
-               getGoogleStyle());
+               Style);
   verifyFormat("int* a;\n"
                "int* a;\n"
                "int* a;",
                "int* a;\n"
                "int* a;\n"
                "int *a;",
-               getGoogleStyle());
+               Style);
   verifyFormat("int *a;\n"
                "int *a;\n"
                "int *a;",
                "int *a;\n"
                "int * a;\n"
                "int *  a;",
-               getGoogleStyle());
+               Style);
   verifyFormat("auto x = [] {\n"
                "  int *a;\n"
                "  int *a;\n"
@@ -12920,7 +12924,7 @@ TEST_F(FormatTest, 
AdaptivelyFormatsPointersAndReferences) {
                "auto x=[]{int *a;\n"
                "int * a;\n"
                "int *  a;};",
-               getGoogleStyle());
+               Style);
 }
 
 TEST_F(FormatTest, UnderstandsRvalueReferences) {
@@ -13056,7 +13060,7 @@ TEST_F(FormatTest, FormatsCasts) {
   verifyFormat("virtual void foo(char &) const;");
   verifyFormat("virtual void foo(int *a, char *) const;");
   verifyFormat("int a = sizeof(int *) + b;");
-  verifyGoogleFormat("int a = alignof(int *) + b;");
+  verifyGoogleFormat("int a = alignof(int*) + b;");
   verifyFormat("bool b = f(g<int>) && c;");
   verifyFormat("typedef void (*f)(int i) func;");
   verifyFormat("void operator++(int) noexcept;");
@@ -25419,7 +25423,7 @@ TEST_F(FormatTest, AtomicQualifier) {
   verifyFormat("struct foo {\n"
                "  int a1;\n"
                "  _Atomic(a) a2;\n"
-               "  _Atomic(_Atomic(int) *const) a3;\n"
+               "  _Atomic(_Atomic(int)* const) a3;\n"
                "};",
                Google);
   verifyFormat("_Atomic(uint64_t) a;");

>From 9d86ca8094a3f2901c7b8d62889ab783e806fc59 Mon Sep 17 00:00:00 2001
From: James Y Knight <jykni...@google.com>
Date: Mon, 21 Jul 2025 11:01:39 -0400
Subject: [PATCH 2/2] Review comments

---
 clang/lib/Format/Format.cpp           | 1 -
 clang/unittests/Format/FormatTest.cpp | 4 ++--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index c8462891f8290..8059f47fc61b1 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -1753,7 +1753,6 @@ FormatStyle getGoogleStyle(FormatStyle::LanguageKind 
Language) {
   GoogleStyle.AttributeMacros.push_back("absl_nullable");
   GoogleStyle.AttributeMacros.push_back("absl_nullability_unknown");
   GoogleStyle.BreakTemplateDeclarations = FormatStyle::BTDS_Yes;
-  GoogleStyle.DerivePointerAlignment = false;
   GoogleStyle.IncludeStyle.IncludeBlocks = tooling::IncludeStyle::IBS_Regroup;
   GoogleStyle.IncludeStyle.IncludeCategories = {{"^<ext/.*\\.h>", 2, 0, false},
                                                 {"^<.*\\.h>", 1, 0, false},
diff --git a/clang/unittests/Format/FormatTest.cpp 
b/clang/unittests/Format/FormatTest.cpp
index 195d045573b4d..eaef541ca43a1 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -12287,7 +12287,6 @@ TEST_F(FormatTest, UnderstandsUsesOfStarAndAmp) {
       "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa, *aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
 
   verifyGoogleFormat("int const* a = &b;");
-  verifyFormat("int const* a = &b;", "int const *a = &b;", getGoogleStyle());
   verifyGoogleFormat("**outparam = 1;");
   verifyGoogleFormat("*outparam = a * b;");
   verifyGoogleFormat("int main(int argc, char** argv) {}");
@@ -12892,7 +12891,8 @@ TEST_F(FormatTest, UnderstandsEllipsis) {
 }
 
 TEST_F(FormatTest, AdaptivelyFormatsPointersAndReferences) {
-  FormatStyle Style = getLLVMStyle();
+  auto Style = getGoogleStyle();
+  EXPECT_FALSE(Style.DerivePointerAlignment);
   Style.DerivePointerAlignment = true;
 
   verifyFormat("int *a;\n"

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