[lld] Use --no-warnings flag to suppress --noinhibit-exec warnings

lld/ELF/Driver.cpp

@@ -86,7 +86,9 @@ ELFSyncStream elf::Log(Ctx &ctx) { return {ctx, DiagLevel::Log}; }
 ELFSyncStream elf::Msg(Ctx &ctx) { return {ctx, DiagLevel::Msg}; }
 ELFSyncStream elf::Warn(Ctx &ctx) { return {ctx, DiagLevel::Warn}; }
 ELFSyncStream elf::Err(Ctx &ctx) {
-  return {ctx, ctx.arg.noinhibitExec ? DiagLevel::Warn : DiagLevel::Err};
+  if (ctx.arg.noinhibitExec)
+    return {ctx, ctx.e.suppressWarnings ? DiagLevel::None : DiagLevel::Warn};
+  return {ctx, DiagLevel::Err};
 }
 ELFSyncStream elf::ErrAlways(Ctx &ctx) { return {ctx, DiagLevel::Err}; }
 ELFSyncStream elf::Fatal(Ctx &ctx) { return {ctx, DiagLevel::Fatal}; }

lld/ELF/Relocations.cpp

@@ -87,8 +87,10 @@ static void printLocation(ELFSyncStream &s, InputSectionBase &sec,
 
 void elf::reportRangeError(Ctx &ctx, uint8_t *loc, const Relocation &rel,
                            const Twine &v, int64_t min, uint64_t max) {
-  ErrorPlace errPlace = getErrorPlace(ctx, loc);
   auto diag = Err(ctx);
+  if (diag.getDiagLevel() == DiagLevel::None)
+    return;
+  ErrorPlace errPlace = getErrorPlace(ctx, loc);
   diag << errPlace.loc << "relocation " << rel.type
        << " out of range: " << v.str() << " is not in [" << min << ", " << max
        << ']';
@@ -119,6 +121,8 @@ void elf::reportRangeError(Ctx &ctx, uint8_t *loc, const Relocation &rel,
 void elf::reportRangeError(Ctx &ctx, uint8_t *loc, int64_t v, int n,
                            const Symbol &sym, const Twine &msg) {
   auto diag = Err(ctx);
+  if (diag.getDiagLevel() == DiagLevel::None)
+    return;
   diag << getErrorPlace(ctx, loc).loc << msg << " is out of range: " << v
        << " is not in [" << llvm::minIntN(n) << ", " << llvm::maxIntN(n) << "]";
   if (!sym.getName().empty()) {

lld/include/lld/Common/ErrorHandler.h

@@ -168,6 +168,7 @@ class SyncStream {
   ~SyncStream();
   StringRef str() { return os.str(); }
   uint64_t tell() { return os.tell(); }
+  DiagLevel getDiagLevel() { return level; }
 };
 
 [[noreturn]] void exitLld(int val);