From: Kristina Brooks <kristina@nym.hush.com>
Date: Wed, 5 Dec 2018 15:05:06 +0000 (+0000)
Subject: [Haiku] Support __float128 for x86 and x86_64
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=95f99e9211321b22e047e4f73d80b5d29d519b38;p=clang

[Haiku] Support __float128 for x86 and x86_64

This patch addresses a compilation error with clang when
running in Haiku being unable to compile code using
float128 (throws compilation error such as 'float128 is
not supported on this target').

Patch by kallisti5 (Alexander von Gluck IV)

Differential Revision: https://reviews.llvm.org/D54901



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@348368 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets/OSTargets.h b/lib/Basic/Targets/OSTargets.h
index 4a2aec8431..5510ca3698 100644
--- a/lib/Basic/Targets/OSTargets.h
+++ b/lib/Basic/Targets/OSTargets.h
@@ -257,6 +257,8 @@ protected:
     Builder.defineMacro("__HAIKU__");
     Builder.defineMacro("__ELF__");
     DefineStd(Builder, "unix", Opts);
+    if (this->HasFloat128) 
+      Builder.defineMacro("__FLOAT128__");
   }
 
 public:
@@ -267,6 +269,14 @@ public:
     this->PtrDiffType = TargetInfo::SignedLong;
     this->ProcessIDType = TargetInfo::SignedLong;
     this->TLSSupported = false;
+    switch (Triple.getArch()) {
+    default:
+      break;
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+      this->HasFloat128 = true;
+      break;
+    }
   }
 };
 
diff --git a/test/CodeGenCXX/float128-declarations.cpp b/test/CodeGenCXX/float128-declarations.cpp
index fca77ddb6b..18a25d9fab 100644
--- a/test/CodeGenCXX/float128-declarations.cpp
+++ b/test/CodeGenCXX/float128-declarations.cpp
@@ -14,6 +14,10 @@
 // RUN:   %s -o - | FileCheck %s -check-prefix=CHECK-X86
 // RUN: %clang_cc1 -emit-llvm -triple x86_64-pc-solaris2.11 -std=c++11 \
 // RUN:   %s -o - | FileCheck %s -check-prefix=CHECK-X86
+// RUN: %clang_cc1 -emit-llvm -triple i586-pc-haiku -std=c++11 \
+// RUN:   %s -o - | FileCheck %s -check-prefix=CHECK-X86
+// RUN: %clang_cc1 -emit-llvm -triple x86_64-unknown-haiku -std=c++11 \
+// RUN:   %s -o - | FileCheck %s -check-prefix=CHECK-X86
 //
 /*  Various contexts where type __float128 can appear. The different check
     prefixes are due to different mangling on X86.  */