r310702 - Revert r310057

[Stefan Maksimovic via cfe-commits]

Author: smaksimovic
Date: Fri Aug 11 04:03:54 2017
New Revision: 310702

URL: http://llvm.org/viewvc/llvm-project?rev=310702&view=rev
Log:
Revert r310057

Bring back changes which r304953 introduced since
they were in fact not the cause of failures described
in r310057 commit message.

Added:
    cfe/trunk/test/CodeGen/mips-madd4.c
      - copied unchanged from r310056, cfe/trunk/test/CodeGen/mips-madd4.c
Modified:
    cfe/trunk/include/clang/Driver/Options.td
    cfe/trunk/lib/Basic/Targets/Mips.cpp
    cfe/trunk/lib/Basic/Targets/Mips.h
    cfe/trunk/lib/Driver/ToolChains/Arch/Mips.cpp
    cfe/trunk/test/Preprocessor/init.c

Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=310702&r1=310701&r2=310702&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Fri Aug 11 04:03:54 2017
@@ -2027,6 +2027,10 @@ def mdspr2 : Flag<["-"], "mdspr2">, Grou
 def mno_dspr2 : Flag<["-"], "mno-dspr2">, Group<m_Group>;
 def msingle_float : Flag<["-"], "msingle-float">, Group<m_Group>;
 def mdouble_float : Flag<["-"], "mdouble-float">, Group<m_Group>;
+def mmadd4 : Flag<["-"], "mmadd4">, Group<m_Group>,
+  HelpText<"Enable the generation of 4-operand madd.s, madd.d and related instructions.">;
+def mno_madd4 : Flag<["-"], "mno-madd4">, Group<m_Group>,
+  HelpText<"Disable the generation of 4-operand madd.s, madd.d and related instructions.">;
 def mmsa : Flag<["-"], "mmsa">, Group<m_Group>,
   HelpText<"Enable MSA ASE (MIPS only)">;
 def mno_msa : Flag<["-"], "mno-msa">, Group<m_Group>,

Modified: cfe/trunk/lib/Basic/Targets/Mips.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/Mips.cpp?rev=310702&r1=310701&r2=310702&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets/Mips.cpp (original)
+++ cfe/trunk/lib/Basic/Targets/Mips.cpp Fri Aug 11 04:03:54 2017
@@ -166,6 +166,9 @@ void MipsTargetInfo::getTargetDefines(co
   if (HasMSA)
     Builder.defineMacro("__mips_msa", Twine(1));
 
+  if (DisableMadd4)
+    Builder.defineMacro("__mips_no_madd4", Twine(1));
+
   Builder.defineMacro("_MIPS_SZPTR", Twine(getPointerWidth(0)));
   Builder.defineMacro("_MIPS_SZINT", Twine(getIntWidth()));
   Builder.defineMacro("_MIPS_SZLONG", Twine(getLongWidth()));

Modified: cfe/trunk/lib/Basic/Targets/Mips.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/Mips.h?rev=310702&r1=310701&r2=310702&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets/Mips.h (original)
+++ cfe/trunk/lib/Basic/Targets/Mips.h Fri Aug 11 04:03:54 2017
@@ -52,6 +52,7 @@ class LLVM_LIBRARY_VISIBILITY MipsTarget
   enum MipsFloatABI { HardFloat, SoftFloat } FloatABI;
   enum DspRevEnum { NoDSP, DSP1, DSP2 } DspRev;
   bool HasMSA;
+  bool DisableMadd4;
 
 protected:
   bool HasFP64;
@@ -62,7 +63,7 @@ public:
       : TargetInfo(Triple), IsMips16(false), IsMicromips(false),
         IsNan2008(false), IsSingleFloat(false), IsNoABICalls(false),
         CanUseBSDABICalls(false), FloatABI(HardFloat), DspRev(NoDSP),
-        HasMSA(false), HasFP64(false) {
+        HasMSA(false), DisableMadd4(false), HasFP64(false) {
     TheCXXABI.set(TargetCXXABI::GenericMIPS);
 
     setABI((getTriple().getArch() == llvm::Triple::mips ||
@@ -319,6 +320,8 @@ public:
         DspRev = std::max(DspRev, DSP2);
       else if (Feature == "+msa")
         HasMSA = true;
+      else if (Feature == "+nomadd4")
+        DisableMadd4 = true;
       else if (Feature == "+fp64")
         HasFP64 = true;
       else if (Feature == "-fp64")

Modified: cfe/trunk/lib/Driver/ToolChains/Arch/Mips.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Arch/Mips.cpp?rev=310702&r1=310701&r2=310702&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Arch/Mips.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Arch/Mips.cpp Fri Aug 11 04:03:54 2017
@@ -319,6 +319,8 @@ void mips::getMIPSTargetFeatures(const D
 
   AddTargetFeature(Args, Features, options::OPT_mno_odd_spreg,
                    options::OPT_modd_spreg, "nooddspreg");
+  AddTargetFeature(Args, Features, options::OPT_mno_madd4, options::OPT_mmadd4,
+                   "nomadd4");
   AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt, "mt");
 }
 

Modified: cfe/trunk/test/Preprocessor/init.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=310702&r1=310701&r2=310702&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/init.c (original)
+++ cfe/trunk/test/Preprocessor/init.c Fri Aug 11 04:03:54 2017
@@ -4840,6 +4840,16 @@
 // RUN:   | FileCheck -match-full-lines -check-prefix MIPS-MSA %s
 // MIPS-MSA:#define __mips_msa 1
 //
+// RUN: %clang_cc1 -target-feature +nomadd4 \
+// RUN:   -E -dM -triple=mips-none-none < /dev/null \
+// RUN:   | FileCheck -match-full-lines -check-prefix MIPS-NOMADD4 %s
+// MIPS-NOMADD4:#define __mips_no_madd4 1
+//
+// RUN: %clang_cc1 \
+// RUN:   -E -dM -triple=mips-none-none < /dev/null \
+// RUN:   | FileCheck -match-full-lines -check-prefix MIPS-MADD4 %s
+// MIPS-MADD4-NOT:#define __mips_no_madd4 1
+//
 // RUN: %clang_cc1 -target-cpu mips32r3 -target-feature +nan2008 \
 // RUN:   -E -dM -triple=mips-none-none < /dev/null \
 // RUN:   | FileCheck -match-full-lines -check-prefix MIPS-NAN2008 %s