NetBSD 6.99.26 switched to default rounding mode, so adjust

__FLT_EVAL_METHOD__ accordingly. Add test case for this and the SSE2
variances on NetBSD.

llvm-svn: 194377

1 files changed, 6 insertions, 1 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index f6b1a150f82..17d75e2c32a 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -2995,7 +2995,12 @@ public:
       : NetBSDTargetInfo<X86_32TargetInfo>(Triple) {}
 
   virtual unsigned getFloatEvalMethod() const {
-    // NetBSD defaults to "double" rounding
+    unsigned Major, Minor, Micro;
+    getTriple().getOSVersion(Major, Minor, Micro);
+    // New NetBSD uses the default rounding mode.
+    if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 26) || Major == 0)
+      return X86_32TargetInfo::getFloatEvalMethod();
+    // NetBSD before 6.99.26 defaults to "double" rounding.
     return 1;
   }
 };