[clang] [clang][SPIR-V] Remove CC_SpirFunction calling convention (PR #216252)

[Tom Honermann via cfe-commits]

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@@ -277,39 +277,38 @@ namespace clang {
 
   /// CallingConv - Specifies the calling convention that a function uses.
   enum CallingConv {
-    CC_C,                 // __attribute__((cdecl))
-    CC_X86StdCall,        // __attribute__((stdcall))
-    CC_X86FastCall,       // __attribute__((fastcall))
-    CC_X86ThisCall,       // __attribute__((thiscall))
-    CC_X86VectorCall,     // __attribute__((vectorcall))
-    CC_X86Pascal,         // __attribute__((pascal))
-    CC_Win64,             // __attribute__((ms_abi))
-    CC_X86_64SysV,        // __attribute__((sysv_abi))
-    CC_X86RegCall,        // __attribute__((regcall))
-    CC_AAPCS,             // __attribute__((pcs("aapcs")))
-    CC_AAPCS_VFP,         // __attribute__((pcs("aapcs-vfp")))
-    CC_IntelOclBicc,      // __attribute__((intel_ocl_bicc))
-    CC_SpirFunction,      // not assigned at the AST level, codegen-only on SPIR
----------------
tahonermann wrote:

Just noting for other prospective reviewers; the removal of this line is easily overlooked among the whitespace changes (which is why we typically recommend whitespace changes be made in separate PRs, but in this case, this appears to be reverting whitespace changes that were not intended in #210882).

https://github.com/llvm/llvm-project/pull/216252