Ignore some -f options that are supported by gcc.

It is possible that we should say some of these are unsupported, but this is
not any worse than the old behavior of ignoring all unknown -f options.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191429 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index d03ec94d136b5ef6a825d8eead742e02f6e98369..04935ebbeeac68a9d3345039dc15a89ced5a65c2 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -1364,6 +1364,37 @@ def Z_reserved_lib_stdcxx : Flag<["-"], "Z-reserved-lib-stdc++">,
 def Z_reserved_lib_cckext : Flag<["-"], "Z-reserved-lib-cckext">,
     Flags<[LinkerInput, NoArgumentUnused, Unsupported]>, Group<reserved_lib_Group>;
 
+// Ignored options
+// FIXME: multiclasess produce suffixes, not prefixes. This is fine for now
+// since it is only used in ignored options.
+multiclass BooleanFFlag<list<string> prefixes, string name> {
+  def _f : Flag<["-"], "f"#name>;
+  def _fno : Flag<["-"], "fno-"#name>;
+}
+
+def fprofile_dir : Joined<["-"], "fprofile-dir=">, Group<clang_ignored_f_Group>;
+
+defm profile_use : BooleanFFlag<["-"], "profile-use">, Group<clang_ignored_f_Group>;
+def fprofile_use_eq : Joined<["-"], "fprofile-use=">, Group<clang_ignored_f_Group>;
+
+defm falign_functions : BooleanFFlag<["-"], "align-functions">, Group<clang_ignored_f_Group>;
+def falign_functions_eq : Joined<["-"], "falign-functions=">, Group<clang_ignored_f_Group>;
+
+defm tracer : BooleanFFlag<["-"], "tracer">, Group<clang_ignored_f_Group>;
+defm unroll_all_loops : BooleanFFlag<["-"], "unroll-all-loops">, Group<clang_ignored_f_Group>;
+defm sse : BooleanFFlag<["-"], "see">, Group<clang_ignored_f_Group>;
+defm rounding_math : BooleanFFlag<["-"], "rounding-math">, Group<clang_ignored_f_Group>;
+defm profile_values : BooleanFFlag<["-"], "profile-values">, Group<clang_ignored_f_Group>;
+defm profile_correction : BooleanFFlag<["-"], "profile-correction">, Group<clang_ignored_f_Group>;
+defm prefetch_loop_arrays : BooleanFFlag<["-"], "prefetch-loop-arrays">, Group<clang_ignored_f_Group>;
+defm permissive : BooleanFFlag<["-"], "permissive">, Group<clang_ignored_f_Group>;
+defm non_call_exceptions : BooleanFFlag<["-"], "non-call-exceptions">, Group<clang_ignored_f_Group>;
+defm ivopts : BooleanFFlag<["-"], "ivopts">, Group<clang_ignored_f_Group>;
+defm ident : BooleanFFlag<["-"], "ident">, Group<clang_ignored_f_Group>;
+defm gcse : BooleanFFlag<["-"], "gcse">, Group<clang_ignored_f_Group>;
+defm eliminate_unused_debug_types : BooleanFFlag<["-"], "eliminate-unused-debug-types">, Group<clang_ignored_f_Group>;
+defm float_store : BooleanFFlag<["-"], "float-store">, Group<clang_ignored_f_Group>;
+
 include "CC1Options.td"
 
 include "CLCompatOptions.td"

diff --git a/test/Driver/clang_f_opts.c b/test/Driver/clang_f_opts.c
index 780b727de0512efdde017cf61f30ce817564ab0e..80ff29e49a7352b6bca59de55e2ca2c9b5f56d13 100644 (file)
--- a/test/Driver/clang_f_opts.c
+++ b/test/Driver/clang_f_opts.c
@@ -99,3 +99,26 @@
 // RUN: %clang -### -S -O4 %s 2>&1 | FileCheck -check-prefix=CHECK-MAX-O %s
 // CHECK-MAX-O: warning: -O4 is equivalent to -O3
 // CHECK-MAX-O: -O3
+
+// Test that we don't error on these.
+// RUN: %clang -### -S                                                        \
+// RUN:     -falign-functions -falign-functions=2 -fno-align-functions        \
+// RUN:     -fasynchronous-unwind-tables -fno-asynchronous-unwind-tables      \
+// RUN:     -fbuiltin -fno-builtin                                            \
+// RUN:     -ffloat-store -fno-float-store                                    \
+// RUN:     -feliminate-unused-debug-types -fno-eliminate-unused-debug-types  \
+// RUN:     -fgcse -fno-gcse                                                  \
+// RUN:     -fident -fno-ident                                                \
+// RUN:     -fivopts -fno-ivopts                                              \
+// RUN:     -fnon-call-exceptions -fno-non-call-exceptions                    \
+// RUN:     -fpermissive -fno-permissive                                      \
+// RUN:     -fprefetch-loop-arrays -fno-prefetch-loop-arrays                  \
+// RUN:     -fprofile-correction -fno-profile-correction                      \
+// RUN:     -fprofile-dir=bar                                                 \
+// RUN:     -fprofile-use -fprofile-use=zed -fno-profile-use                  \
+// RUN:     -fprofile-values -fno-profile-values                              \
+// RUN:     -frounding-math -fno-rounding-math                                \
+// RUN:     -fsee -fno-see                                                    \
+// RUN:     -ftracer -fno-tracer                                              \
+// RUN:     -funroll-all-loops -fno-unroll-all-loops                          \
+// RUN:     %s