regcall: Implement regcall Calling Conv in clang
This patch implements the register call calling convention, which ensures
as many values as possible are passed in registers. CodeGen changes
were committed in https://reviews.llvm.org/rL284108.
Differential Revision: https://reviews.llvm.org/D25204
llvm-svn: 285849
diff --git a/clang/lib/Parse/ParseTentative.cpp b/clang/lib/Parse/ParseTentative.cpp
index 556fbf3..0ea3f8d 100644
--- a/clang/lib/Parse/ParseTentative.cpp
+++ b/clang/lib/Parse/ParseTentative.cpp
@@ -909,7 +909,7 @@
// '(' abstract-declarator ')'
if (Tok.isOneOf(tok::kw___attribute, tok::kw___declspec, tok::kw___cdecl,
tok::kw___stdcall, tok::kw___fastcall, tok::kw___thiscall,
- tok::kw___vectorcall))
+ tok::kw___regcall, tok::kw___vectorcall))
return TPResult::True; // attributes indicate declaration
TPResult TPR = TryParseDeclarator(mayBeAbstract, mayHaveIdentifier);
if (TPR != TPResult::Ambiguous)
@@ -1058,6 +1058,7 @@
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
+ case tok::kw___regcall:
case tok::kw___vectorcall:
case tok::kw___unaligned:
case tok::kw___vector:
@@ -1351,6 +1352,7 @@
case tok::kw___stdcall:
case tok::kw___fastcall:
case tok::kw___thiscall:
+ case tok::kw___regcall:
case tok::kw___vectorcall:
case tok::kw___w64:
case tok::kw___sptr: