diff options
| -rw-r--r-- | include/clang/CodeGen/CodeGenOptions.h | 2 | ||||
| -rw-r--r-- | include/clang/Driver/CC1Options.td | 2 | ||||
| -rw-r--r-- | lib/Frontend/CodeGenAction.cpp | 3 | ||||
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 3 |
4 files changed, 10 insertions, 0 deletions
diff --git a/include/clang/CodeGen/CodeGenOptions.h b/include/clang/CodeGen/CodeGenOptions.h index 54d3ba03f3..6241230ffb 100644 --- a/include/clang/CodeGen/CodeGenOptions.h +++ b/include/clang/CodeGen/CodeGenOptions.h @@ -54,6 +54,7 @@ public: unsigned ObjCDispatchMethod : 2; /// Method of Objective-C dispatch to use. 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 SoftFloat : 1; /// -soft-float. unsigned TimePasses : 1; /// Set when -ftime-report is enabled. unsigned UnitAtATime : 1; /// Unused. For mirroring GCC optimization @@ -108,6 +109,7 @@ public: ObjCDispatchMethod = Legacy; OptimizationLevel = 0; OptimizeSize = 0; + RelaxAll = 0; SoftFloat = 0; TimePasses = 0; UnitAtATime = 1; diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td index d7079bb933..fd8322b843 100644 --- a/include/clang/Driver/CC1Options.td +++ b/include/clang/Driver/CC1Options.td @@ -147,6 +147,8 @@ def mno_zero_initialized_in_bss : Flag<"-mno-zero-initialized-in-bss">, HelpText<"Do not put zero initialized data in the BSS">; def msoft_float : Flag<"-msoft-float">, HelpText<"Use software floating point">; +def mrelax_all : Flag<"-mrelax-all">, + HelpText<"Relax all machine instructions">; def mrelocation_model : Separate<"-mrelocation-model">, HelpText<"The relocation model to use">; def munwind_tables : Flag<"-munwind-tables">, diff --git a/lib/Frontend/CodeGenAction.cpp b/lib/Frontend/CodeGenAction.cpp index 03e3ea605c..3416aa825f 100644 --- a/lib/Frontend/CodeGenAction.cpp +++ b/lib/Frontend/CodeGenAction.cpp @@ -321,6 +321,9 @@ bool BackendConsumer::AddEmitPasses() { } TargetMachine *TM = TheTarget->createTargetMachine(Triple, FeaturesStr); + if (CodeGenOpts.RelaxAll) + TM->setMCRelaxAll(true); + // Set register scheduler & allocation policy. RegisterScheduler::setDefault(createDefaultScheduler); RegisterRegAlloc::setDefault(Fast ? createLocalRegisterAllocator : diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 2b75b64dc7..1d81e82ca3 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -187,6 +187,8 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts, Res.push_back("-fobjc-dispatch-method=non-legacy"); break; } + if (Opts.RelaxAll) + Res.push_back("-mrelax-all"); if (Opts.SoftFloat) Res.push_back("-msoft-float"); if (Opts.UnwindTables) @@ -815,6 +817,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); + Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); Opts.SoftFloat = Args.hasArg(OPT_msoft_float); Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); |