[clang] [Clang][Driver][Hurd] Enable __float128 support on x86 on Hurd (PR #153925)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Pino Toscano (pinotree)

<details>
<summary>Changes</summary>

It works fine, and this makes the Hurd driver more consistent with other drivers.

---
Full diff: https://github.com/llvm/llvm-project/pull/153925.diff


1 Files Affected:

- (modified) clang/lib/Basic/Targets/OSTargets.h (+13-1) 


``````````diff
diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index 94b018a0751d1..8d3e232dde1a5 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -325,9 +325,21 @@ class LLVM_LIBRARY_VISIBILITY HurdTargetInfo : public OSTargetInfo<Target> {
       Builder.defineMacro("_REENTRANT");
     if (Opts.CPlusPlus)
       Builder.defineMacro("_GNU_SOURCE");
+    if (this->HasFloat128)
+      Builder.defineMacro("__FLOAT128__");
   }
 public:
-  using OSTargetInfo<Target>::OSTargetInfo;
+  HurdTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
+      : OSTargetInfo<Target>(Triple, Opts) {
+    switch (Triple.getArch()) {
+    default:
+      break;
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+      this->HasFloat128 = true;
+      break;
+    }
+  }
 };
 
 // Linux target

``````````

</details>


https://github.com/llvm/llvm-project/pull/153925