From: Manman Ren <mren@apple.com>
Date: Fri, 10 Aug 2012 20:39:38 +0000 (+0000)
Subject: ARM: enable struct byval for AAPCS.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d9b45125935b05578255501a7e05fba9de603609;p=oota-llvm.git

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 7aa3993e308..5bc429b3b7e 100644
--- a/lib/Target/ARM/ARMCallingConv.td
+++ b/lib/Target/ARM/ARMCallingConv.td
@@ -132,6 +132,9 @@ def RetCC_ARM_AAPCS_Common : CallingConv<[
 //===----------------------------------------------------------------------===//
 
 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>>,