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-rw-r--r--clang/lib/Driver/ToolChains/Clang.cpp7
1 files changed, 6 insertions, 1 deletions
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index c1c8813cc42..6ba5d048a48 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -4972,7 +4972,8 @@ void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
// Parse the default calling convention options.
if (Arg *CCArg =
Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr,
- options::OPT__SLASH_Gz, options::OPT__SLASH_Gv)) {
+ options::OPT__SLASH_Gz, options::OPT__SLASH_Gv,
+ options::OPT__SLASH_Gregcall)) {
unsigned DCCOptId = CCArg->getOption().getID();
const char *DCCFlag = nullptr;
bool ArchSupported = true;
@@ -4993,6 +4994,10 @@ void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
DCCFlag = "-fdefault-calling-conv=vectorcall";
break;
+ case options::OPT__SLASH_Gregcall:
+ ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
+ DCCFlag = "-fdefault-calling-conv=regcall";
+ break;
}
// MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either.
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