[clang][cli] Remove -f[no-]trapping-math from -cc1 command line

This patch removes the -f[no-]trapping-math flags from the -cc1 command line. These flags are ignored in the command line parser and their semantics is fully handled by -ffp-exception-mode.

This patch does not remove -f[no-]trapping-math from the driver command line. The driver flags are being used and do affect compilation.

Reviewed By: dexonsmith, SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D93395

1 files changed, 0 insertions, 8 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 07906f4..cc3b038 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2684,14 +2684,6 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
       Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
   }
 
-  if (Args.hasArg(OPT_ftrapping_math)) {
-    Opts.setFPExceptionMode(LangOptions::FPE_Strict);
-  }
-
-  if (Args.hasArg(OPT_fno_trapping_math)) {
-    Opts.setFPExceptionMode(LangOptions::FPE_Ignore);
-  }
-
   LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore;
   if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) {
     StringRef Val = A->getValue();