[PATCH] D135171: FreeBSD: enable __float128 on x86

[Brooks Davis via Phabricator via cfe-commits]

brooks created this revision.
brooks added reviewers: arichardson, emaste, dim.
Herald added a subscriber: krytarowski.
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brooks requested review of this revision.
Herald added a project: clang.
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This is a prerequisite for proper runtime support on FreeBSD as it will
allow such a runtime to be compiled.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135171

Files:
  clang/lib/Basic/Targets/OSTargets.h


Index: clang/lib/Basic/Targets/OSTargets.h
===================================================================
--- clang/lib/Basic/Targets/OSTargets.h
+++ clang/lib/Basic/Targets/OSTargets.h
@@ -232,15 +232,20 @@
     // setting this to 1 is conforming even if all the basic source
     // character literals have the same encoding as char and wchar_t.
     Builder.defineMacro("__STDC_MB_MIGHT_NEQ_WC__", "1");
+
+    if (this->HasFloat128)
+      Builder.defineMacro("__FLOAT128__");
   }
 
 public:
   FreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
       : OSTargetInfo<Target>(Triple, Opts) {
     switch (Triple.getArch()) {
-    default:
     case llvm::Triple::x86:
     case llvm::Triple::x86_64:
+      this->HasFloat128 = true;
+      [[fallthrough]];
+    default:
       this->MCountName = ".mcount";
       break;
     case llvm::Triple::mips:


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