3 files changed, 43 insertions, 6 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 4604b1cfa0f..587b13fe412 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -1136,7 +1136,9 @@ void PPCTargetInfo::getDefaultFeatures(llvm::StringMap<bool> &Features) const {
 }
 
 bool PPCTargetInfo::hasFeature(StringRef Feature) const {
-  return Feature == "powerpc";
+  return (Feature == "powerpc" ||
+	  (Feature == "vsx" && HasVSX) ||
+	  (Feature == "power8-vector" && HasP8Vector));
 }
 
   
diff --git a/clang/lib/Headers/altivec.h b/clang/lib/Headers/altivec.h
index 373eded482f..1ffefa85851 100644
--- a/clang/lib/Headers/altivec.h
+++ b/clang/lib/Headers/altivec.h
@@ -2667,8 +2667,20 @@ vec_max(vector unsigned int __a, vector bool int __b)
 static vector float __ATTRS_o_ai
 vec_max(vector float __a, vector float __b)
 {
+#ifdef __VSX__
+  return __builtin_vsx_xvmaxsp(__a, __b);
+#else
   return __builtin_altivec_vmaxfp(__a, __b);
+#endif
+}
+
+#ifdef __VSX__
+static vector double __ATTRS_o_ai
+vec_max(vector double __a, vector double __b)
+{
+  return __builtin_vsx_xvmaxdp(__a, __b);
 }
+#endif
 
 /* vec_vmaxsb */
 
@@ -2795,7 +2807,11 @@ vec_vmaxuw(vector unsigned int __a, vector bool int __b)
 static vector float __attribute__((__always_inline__))
 vec_vmaxfp(vector float __a, vector float __b)
 {
+#ifdef __VSX__
+  return __builtin_vsx_xvmaxsp(__a, __b);
+#else
   return __builtin_altivec_vmaxfp(__a, __b);
+#endif
 }
 
 /* vec_mergeh */
@@ -3299,8 +3315,20 @@ vec_min(vector unsigned int __a, vector bool int __b)
 static vector float __ATTRS_o_ai
 vec_min(vector float __a, vector float __b)
 {
+#ifdef __VSX__
+  return __builtin_vsx_xvminsp(__a, __b);
+#else
   return __builtin_altivec_vminfp(__a, __b);
+#endif
+}
+
+#ifdef __VSX__
+static vector double __ATTRS_o_ai
+vec_min(vector double __a, vector double __b)
+{
+  return __builtin_vsx_xvmindp(__a, __b);
 }
+#endif
 
 /* vec_vminsb */
 
@@ -3427,7 +3455,11 @@ vec_vminuw(vector unsigned int __a, vector bool int __b)
 static vector float __attribute__((__always_inline__))
 vec_vminfp(vector float __a, vector float __b)
 {
+#ifdef __VSX__
+  return __builtin_vsx_xvminsp(__a, __b);
+#else
   return __builtin_altivec_vminfp(__a, __b);
+#endif
 }
 
 /* vec_mladd */
diff --git a/clang/lib/Sema/DeclSpec.cpp b/clang/lib/Sema/DeclSpec.cpp
index bed94127b28..6e77d2769fa 100644
--- a/clang/lib/Sema/DeclSpec.cpp
+++ b/clang/lib/Sema/DeclSpec.cpp
@@ -18,6 +18,7 @@
 #include "clang/AST/NestedNameSpecifier.h"
 #include "clang/AST/TypeLoc.h"
 #include "clang/Basic/LangOptions.h"
+#include "clang/Basic/TargetInfo.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Parse/ParseDiagnostic.h" // FIXME: remove this back-dependency!
 #include "clang/Sema/LocInfoType.h"
@@ -689,11 +690,6 @@ bool DeclSpec::SetTypeSpecType(TST T, SourceLocation Loc,
   }
   TypeSpecType = T;
   TypeSpecOwned = false;
-  if (TypeAltiVecVector && !TypeAltiVecBool && (TypeSpecType == TST_double)) {
-    PrevSpec = DeclSpec::getSpecifierName((TST) TypeSpecType, Policy);
-    DiagID = diag::err_invalid_vector_decl_spec;
-    return true;
-  }
   return false;
 }
 
@@ -987,6 +983,13 @@ void DeclSpec::Finish(DiagnosticsEngine &D, Preprocessor &PP, const PrintingPoli
       if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
           (TypeSpecWidth != TSW_unspecified))
         TypeSpecSign = TSS_unsigned;
+    } else if (TypeSpecType == TST_double) {
+      // vector long double and vector long long double are never allowed.
+      // vector double is OK for Power7 and later.
+      if (TypeSpecWidth == TSW_long || TypeSpecWidth == TSW_longlong)
+        Diag(D, TSWLoc, diag::err_invalid_vector_long_double_decl_spec);
+      else if (!PP.getTargetInfo().hasFeature("vsx"))
+        Diag(D, TSTLoc, diag::err_invalid_vector_double_decl_spec);
     } else if (TypeSpecWidth == TSW_long) {
       Diag(D, TSWLoc, diag::warn_vector_long_decl_spec_combination)
         << getSpecifierName((TST)TypeSpecType, Policy);