x86_64 ABI: Make sure to pass vectors that we want to pass in memory

as byval. Otherwise LLVM will have its own opinion about where to put
things.

We now pass all gcc dg.compat tests on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65266 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 71ef679f18e579a66f9cc53b6c737cbe87742822..45896314ecb23e960c0e8e3b7827dda52aa64197 100644 (file)
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -843,7 +843,7 @@ ABIArgInfo X86_64ABIInfo::classifyArgumentType(QualType Ty, ASTContext &Context,
   case X87:
   case ComplexX87:
     // Choose appropriate in memory type.
-    if (CodeGenFunction::hasAggregateLLVMType(Ty))
+    if (Ty->isVectorType() || CodeGenFunction::hasAggregateLLVMType(Ty))
       return ABIArgInfo::getIndirect(0);
     else
       return ABIArgInfo::getDirect();