diff options
| -rw-r--r-- | include/clang/Driver/CC1Options.td | 2 | ||||
| -rw-r--r-- | include/clang/Driver/Options.td | 4 | ||||
| -rw-r--r-- | include/clang/Frontend/CodeGenOptions.h | 2 | ||||
| -rw-r--r-- | lib/Driver/Tools.cpp | 4 | ||||
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 1 |
5 files changed, 11 insertions, 2 deletions
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td index a175ce5fb4..fcdd4697d5 100644 --- a/include/clang/Driver/CC1Options.td +++ b/include/clang/Driver/CC1Options.td @@ -151,6 +151,8 @@ def fdata_sections : Flag<"-fdata-sections">, HelpText<"Place each data in its own section (ELF Only)">; def funroll_loops : Flag<"-funroll-loops">, HelpText<"Turn on loop unroller">; +def relaxed_aliasing : Flag<"-relaxed-aliasing">, + HelpText<"Turn off TBAA">; def masm_verbose : Flag<"-masm-verbose">, HelpText<"Generate verbose assembly output">; def mcode_model : Separate<"-mcode-model">, diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td index 4d31ce48ff..cfb9c81b57 100644 --- a/include/clang/Driver/Options.td +++ b/include/clang/Driver/Options.td @@ -337,7 +337,7 @@ def fno_show_column : Flag<"-fno-show-column">, Group<f_Group>; def fno_show_source_location : Flag<"-fno-show-source-location">, Group<f_Group>; def fno_spell_checking : Flag<"-fno-spell-checking">, Group<f_Group>; def fno_stack_protector : Flag<"-fno-stack-protector">, Group<f_Group>; -def fno_strict_aliasing : Flag<"-fno-strict-aliasing">, Group<clang_ignored_f_Group>; +def fno_strict_aliasing : Flag<"-fno-strict-aliasing">, Group<f_Group>; def fno_threadsafe_statics : Flag<"-fno-threadsafe-statics">, Group<f_Group>; def fno_use_cxa_atexit : Flag<"-fno-use-cxa-atexit">, Group<f_Group>; def fno_unit_at_a_time : Flag<"-fno-unit-at-a-time">, Group<f_Group>; @@ -386,7 +386,7 @@ def fsigned_bitfields : Flag<"-fsigned-bitfields">, Group<f_Group>; def fsigned_char : Flag<"-fsigned-char">, Group<f_Group>; def fstack_protector_all : Flag<"-fstack-protector-all">, Group<f_Group>; def fstack_protector : Flag<"-fstack-protector">, Group<f_Group>; -def fstrict_aliasing : Flag<"-fstrict-aliasing">, Group<clang_ignored_f_Group>; +def fstrict_aliasing : Flag<"-fstrict-aliasing">, Group<f_Group>; def fsyntax_only : Flag<"-fsyntax-only">, Flags<[DriverOption]>; def ftabstop_EQ : Joined<"-ftabstop=">, Group<f_Group>; def ferror_limit_EQ : Joined<"-ferror-limit=">, Group<f_Group>; diff --git a/include/clang/Frontend/CodeGenOptions.h b/include/clang/Frontend/CodeGenOptions.h index ffaaedc30e..171cfd97bf 100644 --- a/include/clang/Frontend/CodeGenOptions.h +++ b/include/clang/Frontend/CodeGenOptions.h @@ -66,6 +66,7 @@ public: unsigned OptimizationLevel : 3; /// The -O[0-4] option specified. unsigned OptimizeSize : 1; /// If -Os is specified. unsigned RelaxAll : 1; /// Relax all machine code instructions. + unsigned RelaxedAliasing : 1; /// Set when -fno-strict-aliasing is enabled. unsigned SimplifyLibCalls : 1; /// Set when -fbuiltin is enabled. unsigned SoftFloat : 1; /// -soft-float. unsigned TimePasses : 1; /// Set when -ftime-report is enabled. @@ -128,6 +129,7 @@ public: OptimizationLevel = 0; OptimizeSize = 0; RelaxAll = 0; + RelaxedAliasing = 0; SimplifyLibCalls = 1; SoftFloat = 0; TimePasses = 0; diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 5ea1cbb357..229cf608f3 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -910,6 +910,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, options::OPT_fno_zero_initialized_in_bss)) CmdArgs.push_back("-mno-zero-initialized-in-bss"); + if (Args.hasFlag(options::OPT_fno_strict_aliasing, + options::OPT_fstrict_aliasing, + false)) + CmdArgs.push_back("-relaxed-aliasing"); // Decide whether to use verbose asm. Verbose assembly is the default on // toolchains which have the integrated assembler on by default. diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 3a928a520d..fd9b635997 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -858,6 +858,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, Opts.LimitDebugInfo = Args.hasArg(OPT_flimit_debug_info); Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); + Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); Opts.NoCommon = Args.hasArg(OPT_fno_common); |