Add separate patch files for all the customizations we have currently

applied to our copy of llvm/clang.  These can be applied in alphabetical
order to a pristine llvm/clang 3.4 release source tree, to result in the
same version used in FreeBSD.

This is intended to clearly document all the changes until now, which
mostly consist of cherry pickings from the respective upstream trunks,
plus a number of hand-written FreeBSD-specific ones.  Hopefully those
can eventually be cleaned up and sent upstream too.

MFC after:	1 week
X-MFC-With:	r263313

1 files changed, 53 insertions, 0 deletions

diff --git a/contrib/llvm/patches/patch-r262262-clang-r199037-sparc.diff b/contrib/llvm/patches/patch-r262262-clang-r199037-sparc.diff
new file mode 100644
index 0000000..beed0ed
--- /dev/null
+++ b/contrib/llvm/patches/patch-r262262-clang-r199037-sparc.diff
@@ -0,0 +1,53 @@
+Pull in r199037 from upstream clang trunk (by Jakob Stokund Olesen):
+
+  SPARC passes non-trivial C++ objects indirectly like everybody else.
+
+Introduced here: http://svn.freebsd.org/changeset/base/262262
+
+Index: tools/clang/lib/CodeGen/TargetInfo.cpp
+===================================================================
+--- tools/clang/lib/CodeGen/TargetInfo.cpp
++++ tools/clang/lib/CodeGen/TargetInfo.cpp
+@@ -5349,6 +5349,11 @@ SparcV9ABIInfo::classifyType(QualType Ty, unsigned
+   if (!isAggregateTypeForABI(Ty))
+     return ABIArgInfo::getDirect();
+ 
++  // If a C++ object has either a non-trivial copy constructor or a non-trivial
++  // destructor, it is passed with an explicit indirect pointer / sret pointer.
++  if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI()))
++    return ABIArgInfo::getIndirect(0, RAA == CGCXXABI::RAA_DirectInMemory);
++
+   // This is a small aggregate type that should be passed in registers.
+   // Build a coercion type from the LLVM struct type.
+   llvm::StructType *StrTy = dyn_cast<llvm::StructType>(CGT.ConvertType(Ty));
+Index: tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
+===================================================================
+--- tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
++++ tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
+@@ -0,0 +1,26 @@
++// RUN: %clang_cc1 -triple sparcv9-unknown-unknown -emit-llvm %s -o - | FileCheck %s
++
++struct pod {
++  int a, b;
++};
++
++void f0();
++void f1(struct pod);
++
++struct notpod {
++  int a, b;
++  ~notpod() { f0(); }
++};
++
++void f2(struct notpod);
++
++// CHECK-LABEL: caller
++// CHECK: call void @_Z2f13pod(i64
++// CHECK: call void @_Z2f26notpod(%struct.notpod*
++void caller()
++{
++  pod p1;
++  notpod p2;
++  f1(p1);
++  f2(p2);
++}