Reland "[X86] Assign AVX10_1 feature priority to align with gcc. (#94557)" (#94734)

This reverts commit c007883.

Author: FreddyLeaf

llvm/include/llvm/TargetParser/X86TargetParser.def

@@ -250,8 +250,8 @@ X86_FEATURE_COMPAT(SHA512,          "sha512",                 0)
 X86_FEATURE_COMPAT(SM4,             "sm4",                    0)
 X86_FEATURE       (EGPR,            "egpr")
 X86_FEATURE_COMPAT(USERMSR,         "usermsr",                0)
-X86_FEATURE_COMPAT(AVX10_1,         "avx10.1-256",            0)
-X86_FEATURE_COMPAT(AVX10_1_512,     "avx10.1-512",            0)
+X86_FEATURE_COMPAT(AVX10_1,         "avx10.1-256",           36)
+X86_FEATURE_COMPAT(AVX10_1_512,     "avx10.1-512",           37)
 // These features aren't really CPU features, but the frontend can set them.
 X86_FEATURE       (RETPOLINE_EXTERNAL_THUNK,    "retpoline-external-thunk")
 X86_FEATURE       (RETPOLINE_INDIRECT_BRANCHES, "retpoline-indirect-branches")

llvm/lib/TargetParser/X86TargetParser.cpp

@@ -748,13 +748,13 @@ unsigned llvm::X86::getFeaturePriority(ProcessorFeatures Feat) {
 #ifndef NDEBUG
   // Check that priorities are set properly in the .def file. We expect that
   // "compat" features are assigned non-duplicate consecutive priorities
-  // starting from one (1, ..., 35) and multiple zeros.
+  // starting from one (1, ..., 37) and multiple zeros.
 #define X86_FEATURE_COMPAT(ENUM, STR, PRIORITY) PRIORITY,
   unsigned Priorities[] = {
 #include "llvm/TargetParser/X86TargetParser.def"
   };
   std::array<unsigned, std::size(Priorities)> HelperList;
-  const size_t MaxPriority = 35;
+  const size_t MaxPriority = 37;
   std::iota(HelperList.begin(), HelperList.begin() + MaxPriority + 1, 0);
   for (size_t i = MaxPriority + 1; i != std::size(Priorities); ++i)
     HelperList[i] = 0;