ARM: enable struct byval for AAPCS.
This change is to be enabled in clang.
rdar://9877866
PR://13350
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161693 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMCallingConv.td b/lib/Target/ARM/ARMCallingConv.td
index 7aa3993..5bc429b 100644
--- a/lib/Target/ARM/ARMCallingConv.td
+++ b/lib/Target/ARM/ARMCallingConv.td
@@ -132,6 +132,9 @@
//===----------------------------------------------------------------------===//
def CC_ARM_AAPCS : CallingConv<[
+ // Handles byval parameters.
+ CCIfByVal<CCPassByVal<4, 4>>,
+
// Handle all vector types as either f64 or v2f64.
CCIfType<[v1i64, v2i32, v4i16, v8i8, v2f32], CCBitConvertToType<f64>>,
CCIfType<[v2i64, v4i32, v8i16, v16i8, v4f32], CCBitConvertToType<v2f64>>,