Integrate LLVM at llvm/llvm-project@f4843acd839f

Updates LLVM usage to match
[f4843acd839f](llvm/llvm-project@f4843acd839f)

PiperOrigin-RevId: 629464549

third_party/llvm/generated.patch

@@ -1,30 +1,13 @@
 Auto generated patch. Do not edit or delete it, even if empty.
-diff -ruN --strip-trailing-cr a/clang/lib/Lex/Pragma.cpp b/clang/lib/Lex/Pragma.cpp
---- a/clang/lib/Lex/Pragma.cpp
-+++ b/clang/lib/Lex/Pragma.cpp
-@@ -1444,7 +1444,8 @@
- .Case("once", PPCallbacks::PWS_Once)
- .Case("suppress", PPCallbacks::PWS_Suppress)
- .Default(-1);
-- if (SpecifierValid = (SpecifierInt != -1))
-+ SpecifierValid = SpecifierInt != -1;
-+ if (SpecifierValid)
- Specifier =
- static_cast<PPCallbacks::PragmaWarningSpecifier>(SpecifierInt);
-
 diff -ruN --strip-trailing-cr a/clang/test/CodeGenCoroutines/coro-elide-thinlto.cpp b/clang/test/CodeGenCoroutines/coro-elide-thinlto.cpp
 --- a/clang/test/CodeGenCoroutines/coro-elide-thinlto.cpp
 +++ b/clang/test/CodeGenCoroutines/coro-elide-thinlto.cpp
-@@ -2,10 +2,10 @@
- // This test is adapted from coro-elide.cpp and splits functions into two files.
- //
+@@ -4,8 +4,8 @@
  // RUN: split-file %s %t
--// RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-callee.cpp -o coro-elide-callee.o
--// RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-caller.cpp -o coro-elide-caller.o
--// RUN: llvm-lto -thinlto coro-elide-callee.o coro-elide-caller.o -o summary
--// RUN: %clang_cc1 -O2 -x ir coro-elide-caller.o -fthinlto-index=summary.thinlto.bc -emit-llvm -o - | FileCheck %s
-+// RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-callee.cpp -o %t/coro-elide-callee.o
-+// RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-caller.cpp -o %t/coro-elide-caller.o
+ // RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-callee.cpp -o %t/coro-elide-callee.o
+ // RUN: %clang --target=x86_64-linux -std=c++20 -O2 -flto=thin -I %S -c %t/coro-elide-caller.cpp -o %t/coro-elide-caller.o
+-// RUN: llvm-lto -thinlto %t/coro-elide-callee.o %t/coro-elide-caller.o -o summary
+-// RUN: %clang_cc1 -O2 -x ir %t/coro-elide-caller.o -fthinlto-index=summary.thinlto.bc -emit-llvm -o - | FileCheck %s
 +// RUN: llvm-lto -thinlto %t/coro-elide-callee.o %t/coro-elide-caller.o -o %t/summary
 +// RUN: %clang_cc1 -O2 -x ir %t/coro-elide-caller.o -fthinlto-index=%t/summary.thinlto.bc -emit-llvm -o - | FileCheck %s
 

third_party/llvm/workspace.bzl

@@ -4,8 +4,8 @@ load("//third_party:repo.bzl", "tf_http_archive")
 
 def repo(name):
  """Imports LLVM."""
- LLVM_COMMIT = "8ba880b587074ad6c8624ed45ea2b289f653667f"
- LLVM_SHA256 = "92f4c53268903ce55a4715a569abbde5a5c5d77cf0bae894bb3b35ac61598638"
+ LLVM_COMMIT = "f4843acd839f4f8687815560b69fa96ed3cbf8cf"
+ LLVM_SHA256 = "bf6efbc83faab7b7d765acb3ce201b740c6e536569fa58f77c278d06b779f4ca"
 
  tf_http_archive(
  name = name,