From: Anton Korobeynikov <asl@math.spbu.ru>
Date: Mon, 28 Apr 2008 07:40:07 +0000 (+0000)
Subject: Fix FP return for Win64 ABI
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2810d675f855133cad90c14d725d9ac0704f4923;p=oota-llvm.git

Fix FP return for Win64 ABI


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50342 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86CallingConv.td b/lib/Target/X86/X86CallingConv.td
index e32a891eba1..60ee0a1bd33 100644
--- a/lib/Target/X86/X86CallingConv.td
+++ b/lib/Target/X86/X86CallingConv.td
@@ -83,6 +83,10 @@ def RetCC_X86_Win64_C : CallingConv<[
   // The X86-Win64 calling convention always returns __m64 values in RAX.
   CCIfType<[v8i8, v4i16, v2i32, v1i64], CCAssignToReg<[RAX]>>,
 
+  // And FP in XMM0 only.
+  CCIfType<[f32], CCAssignToReg<[XMM0]>>,
+  CCIfType<[f64], CCAssignToReg<[XMM0]>>,
+
   // Otherwise, everything is the same as 'normal' X86-64 C CC.
   CCDelegateTo<RetCC_X86_64_C>
 ]>;