[llvm-commits] [PATCH] [PATCH] Complete ARM v6m, v7em, and v7m backend support

[Quentin Colombet]

Hi chandlerc,

Hi,

The attached patch completes the existing support of ARM v6m, v7m, and v7em, i.e., respectively cortex-m0, cortex-m3, and cortex-m4 on the backend side.

The patch consists in adding new subtype values for the MachO format and use them when the related triple are set.

Chandler, I know you told me to directly commit these kind of simple patches, but I'd prefer to have an approval before committing, since I'm touching a part I've never touched before.

Thanks for the feedbacks.

Cheers,

Quentin

http://llvm-reviews.chandlerc.com/D296

Files:
  include/llvm/Object/MachOFormat.h
  lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp

Index: include/llvm/Object/MachOFormat.h
===================================================================
--- include/llvm/Object/MachOFormat.h
+++ include/llvm/Object/MachOFormat.h
@@ -64,7 +64,10 @@
     CSARM_V7     = 9,
     CSARM_V7F    = 10,
     CSARM_V7S    = 11,
-    CSARM_V7K    = 12
+    CSARM_V7K    = 12,
+    CSARM_V6M    = 14,
+    CSARM_V7M    = 15,
+    CSARM_V7EM   = 16
   };
 
   /// \brief PowerPC Machine Subtypes.
Index: lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
===================================================================
--- lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
+++ lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
@@ -672,12 +672,21 @@
     else if (TheTriple.getArchName() == "armv6" ||
         TheTriple.getArchName() == "thumbv6")
       return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V6);
+    else if (TheTriple.getArchName() == "armv6m" ||
+        TheTriple.getArchName() == "thumbv6m")
+      return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V6M);
+    else if (TheTriple.getArchName() == "armv7em" ||
+        TheTriple.getArchName() == "thumbv7em")
+      return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V7EM);
     else if (TheTriple.getArchName() == "armv7f" ||
         TheTriple.getArchName() == "thumbv7f")
       return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V7F);
     else if (TheTriple.getArchName() == "armv7k" ||
         TheTriple.getArchName() == "thumbv7k")
       return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V7K);
+    else if (TheTriple.getArchName() == "armv7m" ||
+        TheTriple.getArchName() == "thumbv7m")
+      return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V7M);
     else if (TheTriple.getArchName() == "armv7s" ||
         TheTriple.getArchName() == "thumbv7s")
       return new DarwinARMAsmBackend(T, TT, object::mach::CSARM_V7S);
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