rnk added a comment.
Some suggestions, you don't have to take all of them.
================
Comment at: include/clang/Basic/DiagnosticSemaKinds.td:2961
+def error_cconv_unsupported : Error<
+ "%0 calling convention not supported %select{"
+ // Use CallingConventionIgnoredReason Enum to specify these.
----------------
This duplication merely to say "not supported" instead of "ignored" seems
unfortunate. We could reasonable change "ignored" to "unsupported" and then you
could use the warn_cconv_ignored.Text accessor to share the text.
================
Comment at: include/clang/Basic/TargetInfo.h:1271
CCCR_Ignore,
+ CCCR_Error,
};
----------------
I feel like perhaps a cleaner way of implementing this would be to have the
driver pass down -Werror=unknown-calling-conv (sp) on PS4. That would also
allow users to tell clang to ignore their CC annotations by disabling the
warning, which could be useful when porting a codebase widely annotated with
__stdcall, for example.
================
Comment at: lib/Basic/Targets/X86.h:646-647
CallingConvCheckResult checkCallingConvention(CallingConv CC) const override
{
+ if (getTriple().isPS4())
+ return (CC == CC_C) ? CCCR_OK : CCCR_Error;
switch (CC) {
----------------
For better separation of concerns, I would suggest putting this in
PS4OSTargetInfo::checkCallingConvention, so that the main x64 code doesn't have
to consider that OS-specific concern.
Repository:
rC Clang
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D64780/new/
https://reviews.llvm.org/D64780
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