r300818 - [AVR] Add -mmcu option to the driver

[Leslie Zhai via cfe-commits]

Author: xiangzhai
Date: Wed Apr 19 23:23:24 2017
New Revision: 300818

URL: http://llvm.org/viewvc/llvm-project?rev=300818&view=rev
Log:
[AVR] Add -mmcu option to the driver

A patch by Peter Wu!

Reviewers: jroelofs, xiangzhai

Reviewed By: jroelofs, dylanmckay, xiangzhai

Subscribers: dlj, dylanmckay, cfe-commits

Differential Revision: https://reviews.llvm.org/D29827

Added:
    cfe/trunk/test/Driver/avr-mmcu.c
Modified:
    cfe/trunk/include/clang/Driver/Options.td
    cfe/trunk/lib/Driver/ToolChains/CommonArgs.cpp

Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=300818&r1=300817&r2=300818&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Wed Apr 19 23:23:24 2017
@@ -1661,6 +1661,7 @@ def mdll : Joined<["-"], "mdll">, Group<
 def municode : Joined<["-"], "municode">, Group<m_Group>, Flags<[DriverOption]>;
 def mthreads : Joined<["-"], "mthreads">, Group<m_Group>, Flags<[DriverOption]>;
 def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>;
+def mmcu_EQ : Joined<["-"], "mmcu=">, Group<m_Group>;
 def mdynamic_no_pic : Joined<["-"], "mdynamic-no-pic">, Group<m_Group>;
 def mfix_and_continue : Flag<["-"], "mfix-and-continue">, Group<clang_ignored_m_Group>;
 def mieee_fp : Flag<["-"], "mieee-fp">, Group<clang_ignored_m_Group>;

Modified: cfe/trunk/lib/Driver/ToolChains/CommonArgs.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/CommonArgs.cpp?rev=300818&r1=300817&r2=300818&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/CommonArgs.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/CommonArgs.cpp Wed Apr 19 23:23:24 2017
@@ -261,6 +261,12 @@ std::string tools::getCPUName(const ArgL
     arm::getARMArchCPUFromArgs(Args, MArch, MCPU, FromAs);
     return arm::getARMTargetCPU(MCPU, MArch, T);
   }
+
+  case llvm::Triple::avr:
+    if (const Arg *A = Args.getLastArg(options::OPT_mmcu_EQ))
+      return A->getValue();
+    return "";
+
   case llvm::Triple::mips:
   case llvm::Triple::mipsel:
   case llvm::Triple::mips64:

Added: cfe/trunk/test/Driver/avr-mmcu.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/avr-mmcu.c?rev=300818&view=auto
==============================================================================
--- cfe/trunk/test/Driver/avr-mmcu.c (added)
+++ cfe/trunk/test/Driver/avr-mmcu.c Wed Apr 19 23:23:24 2017
@@ -0,0 +1,5 @@
+// A test for the propagation of the -mmcu option to -cc1 and -cc1as
+
+// RUN: %clang -### -target avr -mmcu=atmega328p -save-temps %s 2>&1 | FileCheck %s
+// CHECK: clang{{.*}} "-cc1" {{.*}} "-target-cpu" "atmega328p"
+// CHECK: clang{{.*}} "-cc1as" {{.*}} "-target-cpu" "atmega328p"