basic: default to MSVC on Windows

The "armv7-windows", "i686-windows", and "x86_64-windows" targets should be
equivalent to the MSVC environment.  This was previously discussed when the
triples for Windows werw canonicalised.  Im not sure how this was overlooked.
This fixes the emission of non-COFF formats on Windows.

Thanks to ki9a for reporting this issue over IRC!

llvm-svn: 242574

1 files changed, 3 insertions, 6 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 38a6ba4eecb..e4c1feddf47 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -7084,8 +7084,6 @@ static TargetInfo *AllocateTarget(const llvm::Triple &Triple) {
       return new NaClTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::Win32:
       switch (Triple.getEnvironment()) {
-      default:
-        return new ARMleTargetInfo(Triple);
       case llvm::Triple::Cygnus:
         return new CygwinARMTargetInfo(Triple);
       case llvm::Triple::GNU:
@@ -7093,6 +7091,7 @@ static TargetInfo *AllocateTarget(const llvm::Triple &Triple) {
       case llvm::Triple::Itanium:
         return new ItaniumWindowsARMleTargetInfo(Triple);
       case llvm::Triple::MSVC:
+      default: // Assume MSVC for unknown environments
         return new MicrosoftARMleTargetInfo(Triple);
       }
     default:
@@ -7347,14 +7346,13 @@ static TargetInfo *AllocateTarget(const llvm::Triple &Triple) {
       return new SolarisTargetInfo<X86_32TargetInfo>(Triple);
     case llvm::Triple::Win32: {
       switch (Triple.getEnvironment()) {
-      default:
-        return new X86_32TargetInfo(Triple);
       case llvm::Triple::Cygnus:
         return new CygwinX86_32TargetInfo(Triple);
       case llvm::Triple::GNU:
         return new MinGWX86_32TargetInfo(Triple);
       case llvm::Triple::Itanium:
       case llvm::Triple::MSVC:
+      default: // Assume MSVC for unknown environments
         return new MicrosoftX86_32TargetInfo(Triple);
       }
     }
@@ -7399,11 +7397,10 @@ static TargetInfo *AllocateTarget(const llvm::Triple &Triple) {
       return new SolarisTargetInfo<X86_64TargetInfo>(Triple);
     case llvm::Triple::Win32: {
       switch (Triple.getEnvironment()) {
-      default:
-        return new X86_64TargetInfo(Triple);
       case llvm::Triple::GNU:
         return new MinGWX86_64TargetInfo(Triple);
       case llvm::Triple::MSVC:
+      default: // Assume MSVC for unknown environments
         return new MicrosoftX86_64TargetInfo(Triple);
       }
     }