[clang] Introduce SemaX86 (#93098)

This patch moves `Sema` functions that are specific for x86 into the new
`SemaX86` class. This continues previous efforts to split `Sema` up.
Additional context can be found in #84184 and #92682.

clang/include/clang/Sema/Sema.h

@@ -177,6 +177,7 @@ class SemaOpenMP;
 class SemaPseudoObject;
 class SemaRISCV;
 class SemaSYCL;
+class SemaX86;
 class StandardConversionSequence;
 class Stmt;
 class StringLiteral;
@@ -1037,6 +1038,11 @@ class Sema final : public SemaBase {
     return *SYCLPtr;
   }
 
+  SemaX86 &X86() {
+    assert(X86Ptr);
+    return *X86Ptr;
+  }
+
   /// Source of additional semantic information.
   IntrusiveRefCntPtr<ExternalSemaSource> ExternalSource;
 
@@ -1076,6 +1082,7 @@ class Sema final : public SemaBase {
   std::unique_ptr<SemaPseudoObject> PseudoObjectPtr;
   std::unique_ptr<SemaRISCV> RISCVPtr;
   std::unique_ptr<SemaSYCL> SYCLPtr;
+  std::unique_ptr<SemaX86> X86Ptr;
 
   ///@}
 
@@ -2122,16 +2129,6 @@ class Sema final : public SemaBase {
                            CallExpr *TheCall);
   bool CheckMipsBuiltinArgument(unsigned BuiltinID, CallExpr *TheCall);
   bool CheckSystemZBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall);
-  bool CheckX86BuiltinRoundingOrSAE(unsigned BuiltinID, CallExpr *TheCall);
-  bool CheckX86BuiltinGatherScatterScale(unsigned BuiltinID, CallExpr *TheCall);
-  bool CheckX86BuiltinTileArguments(unsigned BuiltinID, CallExpr *TheCall);
-  bool CheckX86BuiltinTileArgumentsRange(CallExpr *TheCall,
-                                         ArrayRef<int> ArgNums);
-  bool CheckX86BuiltinTileDuplicate(CallExpr *TheCall, ArrayRef<int> ArgNums);
-  bool CheckX86BuiltinTileRangeAndDuplicate(CallExpr *TheCall,
-                                            ArrayRef<int> ArgNums);
-  bool CheckX86BuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID,
-                                   CallExpr *TheCall);
   bool CheckPPCBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID,
                                    CallExpr *TheCall);
   bool CheckAMDGCNBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall);

clang/include/clang/Sema/SemaX86.h

@@ -0,0 +1,38 @@
+//===----- SemaX86.h ------- X86 target-specific routines -----*- C++ -*---===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file declares semantic analysis functions specific to X86.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SEMA_SEMAX86_H
+#define LLVM_CLANG_SEMA_SEMAX86_H
+
+#include "clang/AST/Expr.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Sema/SemaBase.h"
+
+namespace clang {
+class SemaX86 : public SemaBase {
+public:
+  SemaX86(Sema &S);
+
+  bool CheckBuiltinRoundingOrSAE(unsigned BuiltinID, CallExpr *TheCall);
+  bool CheckBuiltinGatherScatterScale(unsigned BuiltinID, CallExpr *TheCall);
+  bool CheckBuiltinTileArguments(unsigned BuiltinID, CallExpr *TheCall);
+  bool CheckBuiltinTileArgumentsRange(CallExpr *TheCall, ArrayRef<int> ArgNums);
+  bool CheckBuiltinTileDuplicate(CallExpr *TheCall, ArrayRef<int> ArgNums);
+  bool CheckBuiltinTileRangeAndDuplicate(CallExpr *TheCall,
+                                         ArrayRef<int> ArgNums);
+  bool CheckBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID,
+                                CallExpr *TheCall);
+};
+} // namespace clang
+
+#endif // LLVM_CLANG_SEMA_SEMAX86_H

clang/lib/Sema/CMakeLists.txt

@@ -71,6 +71,7 @@ add_clang_library(clangSema
   SemaTemplateInstantiateDecl.cpp
   SemaTemplateVariadic.cpp
   SemaType.cpp
+  SemaX86.cpp
   TypeLocBuilder.cpp
 
   DEPENDS

clang/lib/Sema/Sema.cpp

@@ -52,6 +52,7 @@
 #include "clang/Sema/SemaPseudoObject.h"
 #include "clang/Sema/SemaRISCV.h"
 #include "clang/Sema/SemaSYCL.h"
+#include "clang/Sema/SemaX86.h"
 #include "clang/Sema/TemplateDeduction.h"
 #include "clang/Sema/TemplateInstCallback.h"
 #include "clang/Sema/TypoCorrection.h"
@@ -215,6 +216,7 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       PseudoObjectPtr(std::make_unique<SemaPseudoObject>(*this)),
       RISCVPtr(std::make_unique<SemaRISCV>(*this)),
       SYCLPtr(std::make_unique<SemaSYCL>(*this)),
+      X86Ptr(std::make_unique<SemaX86>(*this)),
       MSPointerToMemberRepresentationMethod(
           LangOpts.getMSPointerToMemberRepresentationMethod()),
       MSStructPragmaOn(false), VtorDispStack(LangOpts.getVtorDispMode()),