Revert "[mips] Teach the driver to accept -m(no-)gpopt."

Revert r308431 and r308432, these caused broke some buildbots.

llvm-svn: 308436

clang/include/clang/Basic/DiagnosticDriverKinds.td

@@ -279,10 +279,6 @@ def warn_target_unsupported_nanlegacy : Warning<
 def warn_target_unsupported_compact_branches : Warning<
   "ignoring '-mcompact-branches=' option because the '%0' architecture does not"
   " support it">, InGroup<UnsupportedCB>;
-def warn_drv_unsupported_gpopt : Warning<
-  "ignoring '-mgpopt' option as it cannot be used with %select{|the implicit"
-  " usage of}0-mabicalls">,
-  InGroup<UnsupportedGPOpt>;
 
 def warn_drv_unable_to_find_directory_expected : Warning<
   "unable to find %0 directory, expected to be in '%1'">,

clang/include/clang/Basic/DiagnosticGroups.td

@@ -61,7 +61,6 @@ def DoublePromotion : DiagGroup<"double-promotion">;
 def EnumTooLarge : DiagGroup<"enum-too-large">;
 def UnsupportedNan : DiagGroup<"unsupported-nan">;
 def UnsupportedCB : DiagGroup<"unsupported-cb">;
-def UnsupportedGPOpt : DiagGroup<"unsupported-gpopt">;
 def NonLiteralNullConversion : DiagGroup<"non-literal-null-conversion">;
 def NullConversion : DiagGroup<"null-conversion">;
 def ImplicitConversionFloatingPointToBool :

clang/include/clang/Driver/Options.td

@@ -2035,12 +2035,6 @@ def mfp64 : Flag<["-"], "mfp64">, Group<m_Group>,
   HelpText<"Use 64-bit floating point registers (MIPS only)">;
 def mfp32 : Flag<["-"], "mfp32">, Group<m_Group>,
   HelpText<"Use 32-bit floating point registers (MIPS only)">;
-def mgpopt : Flag<["-"], "mgpopt">, Group<m_Group>,
-  HelpText<"Use GP relative accesses for symbols known to be in a small"
-           " data section (MIPS)">;
-def mno_gpopt : Flag<["-"], "mno-gpopt">, Group<m_Group>,
-  HelpText<"Do not use GP relative accesses for symbols known to be in a small"
-           " data section (MIPS)">;
 def mnan_EQ : Joined<["-"], "mnan=">, Group<m_Group>;
 def mabicalls : Flag<["-"], "mabicalls">, Group<m_Group>,
   HelpText<"Enable SVR4-style position-independent code (Mips only)">;

clang/lib/Driver/ToolChains/Clang.cpp

@@ -1462,32 +1462,6 @@ void Clang::AddMIPSTargetArgs(const ArgList &Args,
     A->claim();
   }
 
-  Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt);
-  Arg *ABICalls = Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls);
-
-  // -mabicalls is the default for many MIPS environments, even with -fno-pic.
-  // -mgpopt is the default for static, -fno-pic environments but these two
-  // options conflict. We want to be certain that -mno-abicalls -mgpopt is
-  // the only case where -mllvm -mgpopt is passed.
-  // NOTE: We need a warning here or in the backend to warn when -mgpopt is
-  //       passed explicitly when compiling something with -mabicalls
-  //       (implictly) in affect. Currently the warning is in the backend.
-  bool NoABICalls =
-      ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls);
-  bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt);
-  if (NoABICalls && (!GPOpt || WantGPOpt)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mgpopt=1");
-  } else {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mgpopt=0");
-      if ((!ABICalls || (!NoABICalls && ABICalls)) && (!GPOpt || WantGPOpt))
-        D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1);
-  }
-
-  if (GPOpt)
-    GPOpt->claim();
-
   if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) {
     StringRef Val = StringRef(A->getValue());
     if (mips::hasCompactBranches(CPUName)) {

clang/test/Driver/mips-features.c

@@ -10,31 +10,6 @@
 // RUN:   | FileCheck --check-prefix=CHECK-MNOABICALLS %s
 // CHECK-MNOABICALLS: "-target-feature" "+noabicalls"
 //
-// -mgpopt
-// RUN: %clang -target mips-linux-gnu -### -c %s -mno-gpopt -mgpopt 2>&1 \
-// RUN:   | FileCheck --check-prefix=CHECK-MGPOPT-DEF-ABICALLS %s
-// CHECK-MGPOPT-DEF-ABICALLS-NOT: "-mllvm" "-mgpopt"
-//
-// -mabicalls -mgpopt
-// RUN: %clang -target mips-linux-gnu -### -c %s -mabicalls -mno-gpopt -mgpopt 2>&1 \
-// RUN:   | FileCheck --check-prefix=CHECK-MGPOPT-EXPLICIT-ABICALLS %s
-// CHECK-MGPOPT-EXPLICIT-ABICALLS-NOT: "-mllvm" "-mgpopt"
-//
-// -mno-abicalls -mgpopt
-// RUN: %clang -target mips-linux-gnu -### -c %s -mno-abicalls -mno-gpopt -mgpopt 2>&1 \
-// RUN:   | FileCheck --check-prefix=CHECK-MGPOPT %s
-// CHECK-MGPOPT: "-mllvm" "-mgpopt=1"
-//
-// -mno-abicalls -mno-gpopt
-// RUN: %clang -target mips-linux-gnu -### -c %s -mno-abicalls -mgpopt -mno-gpopt 2>&1 \
-// RUN:   | FileCheck --check-prefix=CHECK-MNOGPOPT %s
-// CHECK-MNOGPOPT: "-mllvm" "-mgpopt=0"
-//
-// -mno-abicalls
-// RUN: %clang -target mips-linux-gnu -### -c %s -mno-abicalls 2>&1 \
-// RUN:   | FileCheck --check-prefix=CHECK-MGPOPTDEF %s
-// CHECK-MGPOPTDEF: "-mllvm" "-mgpopt=1"
-//
 // -mips16
 // RUN: %clang -target mips-linux-gnu -### -c %s \
 // RUN:     -mno-mips16 -mips16 2>&1 \

clang/test/Driver/mips-gpopt-warning.c

@@ -1,6 +0,0 @@
-// REQUIRES: mips-registered-target
-// RUN: %clang -### -c -target mips-mti-elf %s -mgpopt 2>&1 | FileCheck -check-prefix=IMPLICIT %s
-// IMPLICIT: warning: ignoring '-mgpopt' option as it cannot be used with the implicit usage of-mabicalls
-
-// RUN: %clang -### -c -target mips-mti-elf %s -mgpopt -mabicalls 2>&1 | FileCheck -check-prefix=EXPLICIT %s
-// EXPLICIT: warning: ignoring '-mgpopt' option as it cannot be used with -mabicalls