From 421d1c93cc7e15fc918bf0f545006dc0da20edc6 Mon Sep 17 00:00:00 2001
From: Duncan Sands <baldrick@free.fr>
Date: Sun, 13 Jan 2008 21:19:12 +0000
Subject: [PATCH] Allow the byval attribute for pointers to any type with a
 size, not just structs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45938 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/ParameterAttributes.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/VMCore/ParameterAttributes.cpp b/lib/VMCore/ParameterAttributes.cpp
index 77a2a6e7fe3..b48e0cecde3 100644
--- a/lib/VMCore/ParameterAttributes.cpp
+++ b/lib/VMCore/ParameterAttributes.cpp
@@ -194,8 +194,8 @@ uint16_t ParamAttr::typeIncompatible (const Type *Ty) {
     Incompatible |= SExt | ZExt;
 
   if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
-    if (!isa<StructType>(PTy->getElementType()))
-      // Attributes that only apply to pointers to structs.
+    if (!PTy->getElementType()->isSized())
+      // The byval attribute only applies to pointers to types with a size.
       Incompatible |= ParamAttr::ByVal;
   } else {
     // Attributes that only apply to pointers.