[clang] [sanitizer] Add plumbing for -fsanitize-add-pseudo-functions and partly replace '-mllvm -array-bounds-pseudofn' (PR #138577)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,c,h -- clang/include/clang/Basic/CodeGenOptions.h clang/include/clang/Driver/SanitizerArgs.h clang/lib/CodeGen/CGExpr.cpp clang/lib/Driver/SanitizerArgs.cpp clang/lib/Frontend/CompilerInvocation.cpp clang/test/CodeGen/bounds-checking-debuginfo.c clang/test/Driver/fsanitize.c
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 4ea41662a..43694dbf4 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -1228,7 +1228,10 @@ void CodeGenFunction::EmitBoundsCheckImpl(const Expr *E, llvm::Value *Bound,
   SanitizerScope SanScope(this);
 
   llvm::DILocation *CheckDI = Builder.getCurrentDebugLocation();
-  if ((ClArrayBoundsPseudoFn || CGM.getCodeGenOpts().SanitizeAddPseudoFunctions.has(SanitizerKind::SO_ArrayBounds)) && CheckDI) {
+  if ((ClArrayBoundsPseudoFn ||
+       CGM.getCodeGenOpts().SanitizeAddPseudoFunctions.has(
+           SanitizerKind::SO_ArrayBounds)) &&
+      CheckDI) {
     CheckDI = getDebugInfo()->CreateSyntheticInlineAt(
         Builder.getCurrentDebugLocation(), "__ubsan_check_array_bounds");
   }
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index fd456ea06..453b03538 100644
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -741,8 +741,8 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
 
   // Parse -f(no-)?sanitize-add-pseudo-functions flags
   SanitizerMask AddPseudoFunctionsKinds =
-      parseSanitizeArgs(D, Args, DiagnoseErrors, AddPseudoFunctionsDefault, {}, {},
-                        options::OPT_fsanitize_add_pseudo_functions_EQ,
+      parseSanitizeArgs(D, Args, DiagnoseErrors, AddPseudoFunctionsDefault, {},
+                        {}, options::OPT_fsanitize_add_pseudo_functions_EQ,
                         options::OPT_fno_sanitize_add_pseudo_functions_EQ);
   AddPseudoFunctionsKinds &= Kinds;
 
@@ -1346,8 +1346,8 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args,
         Args.MakeArgString("-fsanitize-skip-hot-cutoff=" + SkipHotCutoffsStr));
 
   if (!AddPseudoFunctions.empty())
-    CmdArgs.push_back(
-        Args.MakeArgString("-fsanitize-add-pseudo-functions=" + toString(AddPseudoFunctions)));
+    CmdArgs.push_back(Args.MakeArgString("-fsanitize-add-pseudo-functions=" +
+                                         toString(AddPseudoFunctions)));
 
   addSpecialCaseListOpt(Args, CmdArgs,
                         "-fsanitize-ignorelist=", UserIgnorelistFiles);
@@ -1534,7 +1534,8 @@ SanitizerMask parseArgValues(const Driver &D, const llvm::opt::Arg *A,
        A->getOption().matches(options::OPT_fsanitize_merge_handlers_EQ) ||
        A->getOption().matches(options::OPT_fno_sanitize_merge_handlers_EQ) ||
        A->getOption().matches(options::OPT_fsanitize_add_pseudo_functions_EQ) ||
-       A->getOption().matches(options::OPT_fno_sanitize_add_pseudo_functions_EQ)) &&
+       A->getOption().matches(
+           options::OPT_fno_sanitize_add_pseudo_functions_EQ)) &&
       "Invalid argument in parseArgValues!");
   SanitizerMask Kinds;
   for (int i = 0, n = A->getNumValues(); i != n; ++i) {
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index d79b0546d..d1fda794d 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2336,9 +2336,10 @@ bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
       "-fsanitize-skip-hot-cutoff=",
       Args.getAllArgValues(OPT_fsanitize_skip_hot_cutoff_EQ), Diags);
 
-  parseSanitizerKinds("-fsanitize-add-pseudo-functions=",
-                      Args.getAllArgValues(OPT_fsanitize_add_pseudo_functions_EQ),
-                      Diags, Opts.SanitizeAddPseudoFunctions);
+  parseSanitizerKinds(
+      "-fsanitize-add-pseudo-functions=",
+      Args.getAllArgValues(OPT_fsanitize_add_pseudo_functions_EQ), Diags,
+      Opts.SanitizeAddPseudoFunctions);
 
   Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
 

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https://github.com/llvm/llvm-project/pull/138577