[llvm] [X86][MC] Support Enc/Dec for EGPR for promoted CRC32 (PR #76434)

[Shengchen Kan via llvm-commits]

================
@@ -6699,28 +6699,30 @@ let Constraints = "$src1 = $dst" in {
                                    null_frag>, REX_W;
   }
 
+  let Predicates = [In64BitMode] in {
   def CRC32r32m8_EVEX  : SS42I_crc32m<0xF0, "crc32{b}", GR32, i8mem,
-                                      int_x86_sse42_crc32_32_8>, EVEX, T_MAP4, PS;
+                                      int_x86_sse42_crc32_32_8>, EVEX, NoCD8, T_MAP4, PS;
   def CRC32r32r8_EVEX  : SS42I_crc32r<0xF0, "crc32{b}", GR32, GR8,
-                                      int_x86_sse42_crc32_32_8>, EVEX, T_MAP4, PS;
+                                      int_x86_sse42_crc32_32_8>, EVEX, NoCD8, T_MAP4, PS;
   def CRC32r32m16_EVEX : SS42I_crc32m<0xF1, "crc32{w}", GR32, i16mem,
-                                      int_x86_sse42_crc32_32_16>, EVEX, T_MAP4, PD;
+                                      int_x86_sse42_crc32_32_16>, EVEX, NoCD8, T_MAP4, PD;
   def CRC32r32r16_EVEX : SS42I_crc32r<0xF1, "crc32{w}", GR32, GR16,
-                                      int_x86_sse42_crc32_32_16>, EVEX, T_MAP4, PD;
+                                      int_x86_sse42_crc32_32_16>, EVEX, NoCD8, T_MAP4, PD;
   def CRC32r32m32_EVEX : SS42I_crc32m<0xF1, "crc32{l}", GR32, i32mem,
-                                      int_x86_sse42_crc32_32_32>, EVEX, T_MAP4, PS;
+                                      int_x86_sse42_crc32_32_32>, EVEX, NoCD8, T_MAP4, PS;
----------------
KanRobert wrote:

Move `NoCD8` to `SS42I_crc32r/m` ?

https://github.com/llvm/llvm-project/pull/76434