[llvm] r322613 - [Support] Return an enum instead of an unsigned; NFC.

[George Burgess IV via llvm-commits]

Author: gbiv
Date: Tue Jan 16 19:12:06 2018
New Revision: 322613

URL: http://llvm.org/viewvc/llvm-project?rev=322613&view=rev
Log:
[Support] Return an enum instead of an unsigned; NFC.

We seem to be (logically) returning ArchExtKinds here in all cases, so
the return type should reflect that.

The static_cast is necessary because `A.ID` is actually an `unsigned`,
presumably since we use `decltype(A)` to represent extended attributes
for both ARM and AArch64, which use distinct `ArchExtKinds`.

We can't trivially make the same change for ARM, because one of the
values it returns is the bitwise-or of two `ARM::ArchExtKind`s.

Modified:
    llvm/trunk/include/llvm/Support/TargetParser.h
    llvm/trunk/lib/Support/TargetParser.cpp

Modified: llvm/trunk/include/llvm/Support/TargetParser.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/TargetParser.h?rev=322613&r1=322612&r2=322613&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/TargetParser.h (original)
+++ llvm/trunk/include/llvm/Support/TargetParser.h Tue Jan 16 19:12:06 2018
@@ -203,7 +203,7 @@ StringRef getDefaultCPU(StringRef Arch);
 // Parser
 unsigned parseFPU(StringRef FPU);
 AArch64::ArchKind parseArch(StringRef Arch);
-unsigned parseArchExt(StringRef ArchExt);
+ArchExtKind parseArchExt(StringRef ArchExt);
 ArchKind parseCPUArch(StringRef CPU);
 ARM::ISAKind parseArchISA(StringRef Arch);
 ARM::EndianKind parseArchEndian(StringRef Arch);

Modified: llvm/trunk/lib/Support/TargetParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/TargetParser.cpp?rev=322613&r1=322612&r2=322613&view=diff
==============================================================================
--- llvm/trunk/lib/Support/TargetParser.cpp (original)
+++ llvm/trunk/lib/Support/TargetParser.cpp Tue Jan 16 19:12:06 2018
@@ -868,10 +868,10 @@ AArch64::ArchKind AArch64::parseArch(Str
   return ArchKind::INVALID;
 }
 
-unsigned llvm::AArch64::parseArchExt(StringRef ArchExt) {
+AArch64::ArchExtKind llvm::AArch64::parseArchExt(StringRef ArchExt) {
   for (const auto A : AArch64ARCHExtNames) {
     if (ArchExt == A.getName())
-      return A.ID;
+      return static_cast<ArchExtKind>(A.ID);
   }
   return AArch64::AEK_INVALID;
 }