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Basic: support PreserveMost and PreserveAll on Windows ARM 

Do not ignore these calling conventions on Windows ARM.  They are used
by the swift runtime for certain calls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@328007 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2018-03-20 17:33:26 +00:00
parent b1444f3997
commit 082d99b513
3 changed files with 4 additions and 0 deletions
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2
lib/Basic/Targets/ARM.cpp
View File

@ -971,6 +971,8 @@ WindowsARMTargetInfo::checkCallingConvention(CallingConv CC) const {
return CCCR_Ignore;
case CC_C:
case CC_OpenCLKernel:
case CC_PreserveMost:
case CC_PreserveAll:
return CCCR_OK;
default:
return CCCR_Warning;

1
test/CodeGen/preserve-call-conv.c
View File

@ -3,6 +3,7 @@
// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple thumbv7-unknown-windows-msvc -emit-llvm %s -o - | FileCheck %s
// Check that the preserve_most calling convention attribute at the source level
// is lowered to the corresponding calling convention attrribute at the LLVM IR

1
test/Sema/preserve-call-conv.c
View File

@ -2,6 +2,7 @@
// RUN: %clang_cc1 %s -fsyntax-only -triple arm64-unknown-unknown -verify
// RUN: %clang_cc1 %s -fsyntax-only -triple x86_64-unknown-windows-msvc -verify
// RUN: %clang_cc1 %s -fsyntax-only -triple aarch64-unknown-windows-msvc -verify
// RUN: %clang_cc1 %s -fsyntax-only -triple thumbv7-unknown-windows-msvc -verify
typedef void typedef_fun_t(int);