BareMetal: Auto-detect IAR toolchain for Renesas V850 architecture

This patch implements auto-detection for the V850 toolchain,
provided by IAR Systems:

 * https://www.iar.com/iar-embedded-workbench/#!?architecture=V850

Change-Id: I89c2b2ab87f0b32af4e25e77b8a3b6381481c4cc
Reviewed-by: hjk <hjk@qt.io>

src/plugins/baremetal/iarewtoolchain.cpp

@@ -72,7 +72,8 @@ static QString cppLanguageOption(const FilePath &compiler)
     if (baseName == "iccarm" || baseName == "iccrl78")
         return QString("--c++");
     if (baseName == "icc8051" || baseName == "iccavr"
-            || baseName == "iccstm8" || baseName == "icc430") {
+            || baseName == "iccstm8" || baseName == "icc430"
+            || baseName == "iccv850") {
         return QString("--ec++");
     }
     return {};
@@ -197,6 +198,8 @@ static Abi::Architecture guessArchitecture(const Macros &macros)
             return Abi::Architecture::Msp430Architecture;
         if (macro.key == "__ICCRL78__")
             return Abi::Architecture::Rl78Architecture;
+        if (macro.key == "__ICCV850__")
+            return Abi::Architecture::V850Architecture;
     }
     return Abi::Architecture::UnknownArchitecture;
 }
@@ -220,7 +223,8 @@ static Abi::BinaryFormat guessFormat(Abi::Architecture arch)
     }
     if (arch == Abi::Architecture::Mcs51Architecture
             || arch == Abi::Architecture::AvrArchitecture
-            || arch == Abi::Architecture::Msp430Architecture) {
+            || arch == Abi::Architecture::Msp430Architecture
+            || arch == Abi::Architecture::V850Architecture) {
         return Abi::BinaryFormat::UbrofFormat;
     }
     return Abi::BinaryFormat::UnknownFormat;
@@ -446,6 +450,7 @@ QList<ToolChain *> IarToolChainFactory::autoDetect(const QList<ToolChain *> &alr
         {{"EWSTM8"}, {"\\stm8\\bin\\iccstm8.exe"}},
         {{"EW430"}, {"\\430\\bin\\icc430.exe"}},
         {{"EWRL78"}, {"\\rl78\\bin\\iccrl78.exe"}},
+        {{"EWV850"}, {"\\v850\\bin\\iccv850.exe"}},
     };
 
     QSettings registry(kRegistryNode, QSettings::NativeFormat);

src/plugins/projectexplorer/abi.cpp

@@ -725,6 +725,8 @@ QString Abi::toString(const Architecture &a)
         return QLatin1String("rl78");
     case C166Architecture:
         return QLatin1String("c166");
+    case V850Architecture:
+        return QLatin1String("v850");
     case UnknownArchitecture:
         Q_FALLTHROUGH();
     default:
@@ -871,6 +873,8 @@ Abi::Architecture Abi::architectureFromString(const QStringRef &a)
         return Rl78Architecture;
     if (a == "c166")
         return C166Architecture;
+    if (a == "v850")
+        return V850Architecture;
     else if (a == "xtensa")
         return XtensaArchitecture;
     if (a == "asmjs")

src/plugins/projectexplorer/abi.h

@@ -64,6 +64,7 @@ public:
         Msp430Architecture,
         Rl78Architecture,
         C166Architecture,
+        V850Architecture,
         UnknownArchitecture
     };