Add clang support for cortex-m0 cpus. Patch by James Orr.

llvm-svn: 128018

3 files changed, 12 insertions, 1 deletions

diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
index e305683930c..06998a5edeb 100644
--- a/clang/lib/Driver/ToolChain.cpp
+++ b/clang/lib/Driver/ToolChain.cpp
@@ -101,6 +101,8 @@ static const char *getARMTargetCPU(const ArgList &Args,
     return "iwmmxt";
   if (MArch == "xscale")
     return "xscale";
+  if (MArch == "armv6m" || MArch == "armv6-m")
+    return "cortex-m0";
 
   // If all else failed, return the most base CPU LLVM supports.
   return "arm7tdmi";
@@ -137,6 +139,12 @@ static const char *getLLVMArchSuffixForARM(llvm::StringRef CPU) {
   if (CPU == "cortex-a8" || CPU == "cortex-a9")
     return "v7";
 
+  if (CPU == "cortex-m3")
+    return "v7m";
+
+  if (CPU == "cortex-m0")
+    return "v6m";
+
   return "";
 }
 
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index d4691ac86ef..6127d45fa3a 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -101,7 +101,8 @@ static const char *GetArmArchForMCpu(llvm::StringRef Value) {
     return "xscale";
 
   if (Value == "arm1136j-s" || Value == "arm1136jf-s" ||
-      Value == "arm1176jz-s" || Value == "arm1176jzf-s")
+      Value == "arm1176jz-s" || Value == "arm1176jzf-s" ||
+      Value == "cortex-m0" )
     return "armv6";
 
   if (Value == "cortex-a8" || Value == "cortex-r4" || Value == "cortex-m3")
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 5a4b7e29ba2..6bfe82a8a63 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -374,6 +374,8 @@ static const char *getARMTargetCPU(const ArgList &Args,
     return "iwmmxt";
   if (MArch == "xscale")
     return "xscale";
+  if (MArch == "armv6m" || MArch == "armv6-m")
+    return "cortex-m0";
 
   // If all else failed, return the most base CPU LLVM supports.
   return "arm7tdmi";