[Driver] ignore -maccumulate_outgoing_args option

[pengfei]

Summary

Fixes https://llvm.org/bugs/show_bug.cgi?id=28145

Signed-off-by: Austin English <[e-mail]>

[nickdesaulniers]

Let me check on https://bugs.llvm.org/show_bug.cgi?id=28145 before we start ignoring this. That might be the right approach, but let me check. Otherwise we might actually need this implemented.

clang/include/clang/Driver/Options.td

def mqdsp6_compat : Flag<["-"], "mqdsp6-compat">, Group<m_Group>, Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Enable hexagon-qdsp6 backward compatibility">,
   MarshallingInfoFlag<LangOpts<"HexagonQdsp6Compat">>;
 def m64 : Flag<["-"], "m64">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def mx32 : Flag<["-"], "mx32">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def mabi_EQ : Joined<["-"], "mabi=">, Group<m_Group>;
 def miamcu : Flag<["-"], "miamcu">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>,
   HelpText<"Use Intel MCU ABI">;
 def mno_iamcu : Flag<["-"], "mno-iamcu">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
+def maccumulate_outgoing_args : Flag<["-"], "maccumulate-outgoing-args">, Group<clang_ignored_m_Group>;
 def malign_functions_EQ : Joined<["-"], "malign-functions=">, Group<clang_ignored_m_Group>;
 def malign_loops_EQ : Joined<["-"], "malign-loops=">, Group<clang_ignored_m_Group>;
 def malign_jumps_EQ : Joined<["-"], "malign-jumps=">, Group<clang_ignored_m_Group>;
 def malign_branch_EQ : CommaJoined<["-"], "malign-branch=">, Group<m_Group>, Flags<[NoXarchOption]>,
   HelpText<"Specify types of branches to align">;
 def malign_branch_boundary_EQ : Joined<["-"], "malign-branch-boundary=">, Group<m_Group>, Flags<[NoXarchOption]>,
   HelpText<"Specify the boundary's size to align branches">;
 def mpad_max_prefix_size_EQ : Joined<["-"], "mpad-max-prefix-size=">, Group<m_Group>, Flags<[NoXarchOption]>,

clang/test/Driver/clang_f_opts.c

 // RUN:     -fno-reorder-blocks -freorder-blocks                              \
 // RUN:     -fno-schedule-insns2 -fschedule-insns2                            \
 // RUN:     -fno-stack-check                                                  \
 // RUN:     -fno-check-new -fcheck-new                                        \
 // RUN:     -ffriend-injection                                                \
 // RUN:     -fno-implement-inlines -fimplement-inlines                        \
 // RUN:     -fstack-check                                                     \
 // RUN:     -fforce-addr                                                      \
+// RUN:     -maccumulate-outgoing-args                                        \
 // RUN:     -malign-functions=100                                             \
 // RUN:     -malign-loops=100                                                 \
 // RUN:     -malign-jumps=100                                                 \
 // RUN:     %s 2>&1 | FileCheck --check-prefix=IGNORE %s
 // IGNORE-NOT: error: unknown argument
 
 // Test that the warning is displayed on these.
 // RUN: %clang -###                                                           \