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Add two new calling conventions for runtime calls

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This patch adds two new target-independent calling conventions for runtime
calls - PreserveMost and PreserveAll.
The target-specific implementation for X86-64 is defined as following:
  - Arguments are passed as for the default C calling convention
  - The same applies for the return value(s)
  - PreserveMost preserves all GPRs - except R11
  - PreserveAll preserves all GPRs and all XMMs/YMMs - except R11

Reviewed by Lang and Philip

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199508 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka
2014-01-17 19:47:03 +00:00
parent 41e1c04201
commit ceaf829339
11 changed files with 274 additions and 0 deletions
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lib/IR/AsmWriter.cpp
+2
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@@ -73,6 +73,8 @@ static void PrintCallingConv(unsigned cc, raw_ostream &Out) {
case CallingConv::Cold: Out << "coldcc"; break;
case CallingConv::WebKit_JS: Out << "webkit_jscc"; break;
case CallingConv::AnyReg: Out << "anyregcc"; break;
case CallingConv::PreserveMost: Out << "preserve_mostcc"; break;
case CallingConv::PreserveAll: Out << "preserve_allcc"; break;
case CallingConv::X86_StdCall: Out << "x86_stdcallcc"; break;
case CallingConv::X86_FastCall: Out << "x86_fastcallcc"; break;
case CallingConv::X86_ThisCall: Out << "x86_thiscallcc"; break;