[llvm] r279853 - Swift Calling Convetion: add support for AArch64.

[Manman Ren via llvm-commits]

Author: mren
Date: Fri Aug 26 14:28:17 2016
New Revision: 279853

URL: http://llvm.org/viewvc/llvm-project?rev=279853&view=rev
Log:
Swift Calling Convetion: add support for AArch64.

It will just be the same as the regular calling convention.

rdar://28029509

Added:
    llvm/trunk/test/CodeGen/AArch64/swiftcc.ll
Modified:
    llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp
    llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp?rev=279853&r1=279852&r2=279853&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp Fri Aug 26 14:28:17 2016
@@ -2860,7 +2860,7 @@ bool AArch64FastISel::fastLowerArguments
     return false;
 
   CallingConv::ID CC = F->getCallingConv();
-  if (CC != CallingConv::C)
+  if (CC != CallingConv::C && CC != CallingConv::Swift)
     return false;
 
   // Only handle simple cases of up to 8 GPR and FPR each.

Modified: llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp?rev=279853&r1=279852&r2=279853&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp Fri Aug 26 14:28:17 2016
@@ -2429,6 +2429,7 @@ CCAssignFn *AArch64TargetLowering::CCAss
   case CallingConv::Fast:
   case CallingConv::PreserveMost:
   case CallingConv::CXX_FAST_TLS:
+  case CallingConv::Swift:
     if (!Subtarget->isTargetDarwin())
       return CC_AArch64_AAPCS;
     return IsVarArg ? CC_AArch64_DarwinPCS_VarArg : CC_AArch64_DarwinPCS;

Added: llvm/trunk/test/CodeGen/AArch64/swiftcc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/swiftcc.ll?rev=279853&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/swiftcc.ll (added)
+++ llvm/trunk/test/CodeGen/AArch64/swiftcc.ll Fri Aug 26 14:28:17 2016
@@ -0,0 +1,11 @@
+; RUN: llc -verify-machineinstrs -mtriple=aarch64-apple-ios -o - %s | FileCheck %s
+; RUN: llc -O0 -verify-machineinstrs -mtriple=aarch64-apple-ios -o - %s | FileCheck %s
+
+; CHECK: t1
+; CHECK: fadd s0, s0, s1
+; CHECK: ret
+define swiftcc float @t1(float %a, float %b) {
+entry:
+  %add = fadd float %a, %b
+  ret float %add
+}