[PATCH] [ARM] Add armv6s[-]m as an alias to armv6[-]m

[Bradley Smith]

Patch to add armv6s[-]m as an alias to armv6[-]m.

LLVM currently does not model the M-class OS extension, but instead enables its features by default for armv6-m targets. Technically the correct name for this architecture would be armv6s-m, although in order to avoid breaking current use cases this patch adds armv6s-m as an alias to armv6-m instead of properly modelling the OS extension (which is probably not necessary).

(Testcases for this will be under a separate clang review).

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D7504

Files:
  lib/Support/Triple.cpp

Index: lib/Support/Triple.cpp
===================================================================
--- lib/Support/Triple.cpp
+++ lib/Support/Triple.cpp
@@ -275,7 +275,7 @@
     .Cases("v3", "v3m", isThumb ? Triple::UnknownArch : arch)
     .Cases("v4", "v4t", arch)
     .Cases("v5", "v5e", "v5t", "v5te", "v5tej", arch)
-    .Cases("v6", "v6j", "v6k", "v6m", arch)
+    .Cases("v6", "v6j", "v6k", "v6m", "v6sm", arch)
     .Cases("v6t2", "v6z", "v6zk", arch)
     .Cases("v7", "v7a", "v7em", "v7l", arch)
     .Cases("v7m", "v7r", "v7s", arch)
@@ -412,6 +412,7 @@
     .EndsWith("v7s", Triple::ARMSubArch_v7s)
     .EndsWith("v6", Triple::ARMSubArch_v6)
     .EndsWith("v6m", Triple::ARMSubArch_v6m)
+    .EndsWith("v6sm", Triple::ARMSubArch_v6m)
     .EndsWith("v6t2", Triple::ARMSubArch_v6t2)
     .EndsWith("v5", Triple::ARMSubArch_v5)
     .EndsWith("v5e", Triple::ARMSubArch_v5)
@@ -1062,7 +1063,7 @@
       .Case("v6j", "arm1136j-s")
       .Cases("v6z", "v6zk", "arm1176jzf-s")
       .Case("v6t2", "arm1156t2-s")
-      .Cases("v6m", "v6-m", "cortex-m0")
+      .Cases("v6m", "v6-m", "v6sm", "v6s-m", "cortex-m0")
       .Cases("v7", "v7a", "v7-a", "v7l", "v7-l", "cortex-a8")
       .Cases("v7s", "v7-s", "swift")
       .Cases("v7r", "v7-r", "cortex-r4")

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