ARM: add backend support for the ABI used in WatchOS
At the LLVM level this ABI is essentially a minimal modification of AAPCS to
support 16-byte alignment for vector types and the stack.
llvm-svn: 251570
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index ad546c1..f95b682 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -354,6 +354,7 @@
bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
bool isTargetIOS() const { return TargetTriple.isiOS(); }
+ bool isTargetWatchOS() const { return TargetTriple.isWatchOS(); }
bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); }
bool isTargetNetBSD() const { return TargetTriple.isOSNetBSD(); }
@@ -391,12 +392,13 @@
// FIXME: this is invalid for WindowsCE
return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
- isTargetWindows();
+ isTargetWindows() || isAAPCS16_ABI();
}
bool isTargetAndroid() const { return TargetTriple.isAndroid(); }
bool isAPCS_ABI() const;
bool isAAPCS_ABI() const;
+ bool isAAPCS16_ABI() const;
bool useSoftFloat() const { return UseSoftFloat; }
bool isThumb() const { return InThumbMode; }