commit 44a2253a54f5e98bee2e12ffb2d09eacd45991e8
author Sander de Smalen <sander.desmalen@arm.com> Mon Nov 26 16:38:37 2018 +0000
committer Sander de Smalen <sander.desmalen@arm.com> Mon Nov 26 16:38:37 2018 +0000
tree b47532f4fac3dfe7c8d9ffd9e4bc08828630b107
parent 10a7ee704417a9af6150c574f32befc32c3e2182

[AArch64] Add aarch64_vector_pcs function attribute to Clang

This is the Clang patch to complement the following LLVM patches:
  https://reviews.llvm.org/D51477
  https://reviews.llvm.org/D51479

More information describing the vector ABI and procedure call standard
can be found here:

https://developer.arm.com/products/software-development-tools/\
                          hpc/arm-compiler-for-hpc/vector-function-abi

Patch by Kerry McLaughlin.

Reviewed By: rjmccall

Differential Revision: https://reviews.llvm.org/D54425

llvm-svn: 347571

clang/lib/CodeGen/CGCall.cpp

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 729884a..0ec5c7f 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -59,6 +59,7 @@
   case CC_X86Pascal: return llvm::CallingConv::C;
   // TODO: Add support for __vectorcall to LLVM.
   case CC_X86VectorCall: return llvm::CallingConv::X86_VectorCall;
+  case CC_AArch64VectorCall: return llvm::CallingConv::AArch64_VectorCall;
   case CC_SpirFunction: return llvm::CallingConv::SPIR_FUNC;
   case CC_OpenCLKernel: return CGM.getTargetCodeGenInfo().getOpenCLKernelCallingConv();
   case CC_PreserveMost: return llvm::CallingConv::PreserveMost;
@@ -214,6 +215,9 @@
   if (PcsAttr *PCS = D->getAttr<PcsAttr>())
     return (PCS->getPCS() == PcsAttr::AAPCS ? CC_AAPCS : CC_AAPCS_VFP);
 
+  if (D->hasAttr<AArch64VectorPcsAttr>())
+    return CC_AArch64VectorCall;
+
   if (D->hasAttr<IntelOclBiccAttr>())
     return CC_IntelOclBicc;
 

clang/lib/CodeGen/CGDebugInfo.cpp

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 16d3324..dbceaa7 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -1102,6 +1102,7 @@
   case CC_X86_64SysV:
     return llvm::dwarf::DW_CC_LLVM_X86_64SysV;
   case CC_AAPCS:
+  case CC_AArch64VectorCall:
     return llvm::dwarf::DW_CC_LLVM_AAPCS;
   case CC_AAPCS_VFP:
     return llvm::dwarf::DW_CC_LLVM_AAPCS_VFP;