A few processor detection/features tweaks (JuliaLang#36831)

* Missing feature from Apple A13
* Enable Cortex-A78 and Cortex-X1 on LLVM 11

    llvm/llvm-project@954db63
    https://reviews.llvm.org/D83206

* More relaxed Zen detection: treat all family 23 as Zen* and treat all model >= 0x30 as Zen2.

    GCC uses a similar fallback structure albeit based on feature.
    This should still generate **correct** code since that is always controlled by
    available features. It should be as good a scheduling model estimate as anything else.

    Fix JuliaLang#36826

src/processor_arm.cpp

@@ -301,8 +301,8 @@ constexpr auto arm_cortex_a73 = armv8a_crc;
 constexpr auto arm_cortex_a75 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16);
 constexpr auto arm_cortex_a76 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs);
 constexpr auto arm_cortex_a77 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs);
-constexpr auto arm_cortex_a78 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs);
-constexpr auto arm_cortex_x1 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs);
+constexpr auto arm_cortex_a78 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs); // spe
+constexpr auto arm_cortex_x1 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs); // spe
 constexpr auto arm_neoverse_e1 = armv8_2a | get_feature_masks(rcpc, fullfp16, ssbs);
 constexpr auto arm_neoverse_n1 = armv8_2a | get_feature_masks(dotprod, rcpc, fullfp16, ssbs);
 constexpr auto arm_zeus = armv8_4a | get_feature_masks(sve, i8mm, bf16, fullfp16, ssbs, rand);
@@ -336,7 +336,7 @@ constexpr auto apple_a7 = armv8a_crc_crypto;
 constexpr auto apple_a10 = armv8a_crc_crypto | get_feature_masks(rdm);
 constexpr auto apple_a11 = armv8_2a_crypto | get_feature_masks(fullfp16);
 constexpr auto apple_a12 = armv8_3a_crypto | get_feature_masks(fullfp16);
-constexpr auto apple_a13 = armv8_4a_crypto | get_feature_masks(fullfp16, sha3);
+constexpr auto apple_a13 = armv8_4a_crypto | get_feature_masks(fp16fml, fullfp16, sha3);
 constexpr auto apple_s4 = apple_a12;
 constexpr auto apple_s5 = apple_a12;
 
@@ -363,8 +363,8 @@ static constexpr CPUSpec<CPU, feature_sz> cpus[] = {
  {"cortex-a76", CPU::arm_cortex_a76, CPU::arm_cortex_a75, 90000, Feature::arm_cortex_a76},
  {"cortex-a76ae", CPU::arm_cortex_a76ae, CPU::arm_cortex_a75, 90000, Feature::arm_cortex_a76},
  {"cortex-a77", CPU::arm_cortex_a77, CPU::arm_cortex_a76, 110000, Feature::arm_cortex_a77},
- {"cortex-a78", CPU::arm_cortex_a78, CPU::arm_cortex_a77, UINT32_MAX, Feature::arm_cortex_a78},
- {"cortex-x1", CPU::arm_cortex_x1, CPU::arm_cortex_a78, UINT32_MAX, Feature::arm_cortex_x1},
+ {"cortex-a78", CPU::arm_cortex_a78, CPU::arm_cortex_a77, 110000, Feature::arm_cortex_a78},
+ {"cortex-x1", CPU::arm_cortex_x1, CPU::arm_cortex_a78, 110000, Feature::arm_cortex_x1},
  {"neoverse-e1", CPU::arm_neoverse_e1, CPU::arm_cortex_a76, 100000, Feature::arm_neoverse_e1},
  {"neoverse-n1", CPU::arm_neoverse_n1, CPU::arm_cortex_a76, 100000, Feature::arm_neoverse_n1},
  {"zeus", CPU::arm_zeus, CPU::arm_neoverse_n1, UINT32_MAX, Feature::arm_zeus},
@@ -637,8 +637,8 @@ static constexpr CPUSpec<CPU, feature_sz> cpus[] = {
  {"cortex-a76", CPU::arm_cortex_a76, CPU::arm_cortex_a75, 90000, Feature::arm_cortex_a76},
  {"cortex-a76ae", CPU::arm_cortex_a76ae, CPU::arm_cortex_a75, 90000, Feature::arm_cortex_a76},
  {"cortex-a77", CPU::arm_cortex_a77, CPU::arm_cortex_a76, 110000, Feature::arm_cortex_a77},
- {"cortex-a78", CPU::arm_cortex_a78, CPU::arm_cortex_a77, UINT32_MAX, Feature::arm_cortex_a78},
- {"cortex-x1", CPU::arm_cortex_x1, CPU::arm_cortex_a78, UINT32_MAX, Feature::arm_cortex_x1},
+ {"cortex-a78", CPU::arm_cortex_a78, CPU::arm_cortex_a77, 110000, Feature::arm_cortex_a78},
+ {"cortex-x1", CPU::arm_cortex_x1, CPU::arm_cortex_a78, 110000, Feature::arm_cortex_x1},
  {"neoverse-n1", CPU::arm_neoverse_n1, CPU::arm_cortex_a76, 100000, Feature::arm_neoverse_n1},
  {"denver1", CPU::nvidia_denver1, CPU::arm_cortex_a53, UINT32_MAX, Feature::nvidia_denver1},
  {"denver2", CPU::nvidia_denver2, CPU::arm_cortex_a57, UINT32_MAX, Feature::nvidia_denver2},

src/processor_x86.cpp

@@ -539,11 +539,13 @@ static CPU get_amd_processor_name(uint32_t family, uint32_t model, const uint32_
  case 22:
  return CPU::amd_btver2;
  case 23:
- if ((model >= 0x30 && model <= 0x3f) || model == 0x71)
+ // Known models:
+ // Zen: 1, 17
+ // Zen+: 8, 24
+ // Zen2: 96, 113
+ if (model >= 0x30)
  return CPU::amd_znver2;
- if (model <= 0x0f)
- return CPU::amd_znver1;
- return CPU::amd_btver1;
+ return CPU::amd_znver1;
  }
 }