Integrate LLVM at llvm/llvm-project@99bb9a719cec

Updates LLVM usage to match
[99bb9a719cec](llvm/llvm-project@99bb9a719cec)

PiperOrigin-RevId: 657153082

Author: gribozavr

third_party/llvm/generated.patch

@@ -1,4 +1,41 @@
 Auto generated patch. Do not edit or delete it, even if empty.
+diff -ruN --strip-trailing-cr a/clang/lib/Sema/SemaTemplateDeduction.cpp b/clang/lib/Sema/SemaTemplateDeduction.cpp
+--- a/clang/lib/Sema/SemaTemplateDeduction.cpp
++++ b/clang/lib/Sema/SemaTemplateDeduction.cpp
+@@ -951,9 +951,11 @@
+ 
+     // Skip over the pack elements that were expanded into separate arguments.
+     // If we partially expanded, this is the number of partial arguments.
++    // FIXME: `&& FixedNumExpansions` is a workaround for UB described in
++    // https://github.com/llvm/llvm-project/issues/100095
+     if (IsPartiallyExpanded)
+       PackElements += NumPartialPackArgs;
+-    else if (IsExpanded)
++    else if (IsExpanded && FixedNumExpansions)
+       PackElements += *FixedNumExpansions;
+ 
+     for (auto &Pack : Packs) {
+diff -ruN --strip-trailing-cr a/clang/test/SemaCXX/pr100095.cpp b/clang/test/SemaCXX/pr100095.cpp
+--- a/clang/test/SemaCXX/pr100095.cpp
++++ b/clang/test/SemaCXX/pr100095.cpp
+@@ -0,0 +1,17 @@
++// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s
++// XFAIL: asserts
++
++template <class> struct Pair;
++template <class...> struct Tuple {
++  template <class _Up> Tuple(_Up);
++};
++template <typename> struct StatusOr;
++template <int> using ElementType = int;
++template <int... fields>
++using Key = Tuple<ElementType<fields>...>;
++template <int... fields>
++StatusOr<Pair<Key<fields...>>> Parser();
++struct Helper { Helper(Tuple<>, Tuple<>, int, int); };
++struct D : Helper {
++  D(Key<> f, int n, int e) : Helper(f, Parser<>, n, e) {}
++};
 diff -ruN --strip-trailing-cr a/mlir/lib/Conversion/GPUCommon/OpToFuncCallLowering.h b/mlir/lib/Conversion/GPUCommon/OpToFuncCallLowering.h
 --- a/mlir/lib/Conversion/GPUCommon/OpToFuncCallLowering.h
 +++ b/mlir/lib/Conversion/GPUCommon/OpToFuncCallLowering.h

third_party/llvm/workspace.bzl

@@ -4,8 +4,8 @@ load("//third_party:repo.bzl", "tf_http_archive")
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "51d4980a133db12888207698e39c469cb7055cac"
-    LLVM_SHA256 = "ee34426de8adf8408a610d0072e82b50bad0adac2c009f1f20072d626c0b876e"
+    LLVM_COMMIT = "99bb9a719cec9513e72ad275c1c0302b76b6c408"
+    LLVM_SHA256 = "af060bd4edd9340fd0b90ddd246c78e87dd374d5998a4c154f31d11f8888a076"
 
     tf_http_archive(
         name = name,