[clang] [llvm] Add support for flag output operand "=@cc" for SystemZ. (PR #125970)

[Ulrich Weigand via cfe-commits]

================
@@ -2757,6 +2797,21 @@ static unsigned CCMaskForCondCode(ISD::CondCode CC) {
 #undef CONV
 }
 
+static unsigned CCMaskForSystemZCCVal(unsigned CC) {
----------------
uweigand wrote:

I don't think this is needed, this is simply `1 << (3 - CC)` or something.  You 
have similar code inline elsewhere anyway, so you might just as well inline 
this too.

https://github.com/llvm/llvm-project/pull/125970
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