https://github.com/mikolaj-pirog created https://github.com/llvm/llvm-project/pull/171172
This is a continuation of previous PR: https://github.com/llvm/llvm-project/pull/168750 compiler-rt was synced with libgcc on ProcessorVendor and ProcessorSubtype fields and so was llvm. Cpu type, subtype and vendor entries in X86TargetParser.def were refactored to use ABI_VALUE. LLVM doesn't set the ABI_VALUE for its enums -- clang now takes care of that by reading the ABI_VALUE. I've removed and added some comments to better explain what is going on. From 1b4e46d3697aaa0d0d88117586393536eb406e57 Mon Sep 17 00:00:00 2001 From: "Pirog, Mikolaj Maciej" <[email protected]> Date: Thu, 4 Dec 2025 15:07:20 +0100 Subject: [PATCH 1/3] Sync multiversion features with libgcc and refactor internal cpu type tables --- clang/lib/Basic/Targets/X86.cpp | 6 +- clang/lib/CodeGen/TargetBuiltins/X86.cpp | 6 +- compiler-rt/lib/builtins/cpu_model/x86.c | 9 +- .../llvm/TargetParser/X86TargetParser.def | 126 +++++++++--------- .../llvm/TargetParser/X86TargetParser.h | 14 +- 5 files changed, 82 insertions(+), 79 deletions(-) diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp index f00d435937b92..d5af21c155c8a 100644 --- a/clang/lib/Basic/Targets/X86.cpp +++ b/clang/lib/Basic/Targets/X86.cpp @@ -1363,11 +1363,11 @@ void X86TargetInfo::getCPUSpecificCPUDispatchFeatures( // rather than the full range of cpus. bool X86TargetInfo::validateCpuIs(StringRef FeatureStr) const { return llvm::StringSwitch<bool>(FeatureStr) -#define X86_VENDOR(ENUM, STRING) .Case(STRING, true) +#define X86_VENDOR(ENUM, STRING, ABI_VALUE) .Case(STRING, true) #define X86_CPU_TYPE_ALIAS(ENUM, ALIAS) .Case(ALIAS, true) -#define X86_CPU_TYPE(ENUM, STR) .Case(STR, true) +#define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) .Case(STR, true) #define X86_CPU_SUBTYPE_ALIAS(ENUM, ALIAS) .Case(ALIAS, true) -#define X86_CPU_SUBTYPE(ENUM, STR) .Case(STR, true) +#define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) .Case(STR, true) #include "llvm/TargetParser/X86TargetParser.def" .Default(false); } diff --git a/clang/lib/CodeGen/TargetBuiltins/X86.cpp b/clang/lib/CodeGen/TargetBuiltins/X86.cpp index be2b7d442645e..f57544def1fe5 100644 --- a/clang/lib/CodeGen/TargetBuiltins/X86.cpp +++ b/clang/lib/CodeGen/TargetBuiltins/X86.cpp @@ -630,15 +630,15 @@ Value *CodeGenFunction::EmitX86CpuIs(StringRef CPUStr) { // Calculate the index needed to access the correct field based on the // range. Also adjust the expected value. auto [Index, Value] = StringSwitch<std::pair<unsigned, unsigned>>(CPUStr) -#define X86_VENDOR(ENUM, STRING) \ +#define X86_VENDOR(ENUM, STRING, ABI_VALUE) \ .Case(STRING, {0u, static_cast<unsigned>(llvm::X86::ENUM)}) #define X86_CPU_TYPE_ALIAS(ENUM, ALIAS) \ .Case(ALIAS, {1u, static_cast<unsigned>(llvm::X86::ENUM)}) -#define X86_CPU_TYPE(ENUM, STR) \ +#define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) \ .Case(STR, {1u, static_cast<unsigned>(llvm::X86::ENUM)}) #define X86_CPU_SUBTYPE_ALIAS(ENUM, ALIAS) \ .Case(ALIAS, {2u, static_cast<unsigned>(llvm::X86::ENUM)}) -#define X86_CPU_SUBTYPE(ENUM, STR) \ +#define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) \ .Case(STR, {2u, static_cast<unsigned>(llvm::X86::ENUM)}) #include "llvm/TargetParser/X86TargetParser.def" .Default({0, 0}); diff --git a/compiler-rt/lib/builtins/cpu_model/x86.c b/compiler-rt/lib/builtins/cpu_model/x86.c index 8b352cfe568d0..f52561a36622b 100644 --- a/compiler-rt/lib/builtins/cpu_model/x86.c +++ b/compiler-rt/lib/builtins/cpu_model/x86.c @@ -41,7 +41,8 @@ enum VendorSignatures { enum ProcessorVendors { VENDOR_INTEL = 1, VENDOR_AMD, - VENDOR_OTHER, + // VENDOR_ZHAOXIN + VENDOR_OTHER = 4, VENDOR_MAX }; @@ -104,8 +105,10 @@ enum ProcessorSubtypes { INTEL_COREI7_ARROWLAKE, INTEL_COREI7_ARROWLAKE_S, INTEL_COREI7_PANTHERLAKE, - AMDFAM1AH_ZNVER5, - INTEL_COREI7_DIAMONDRAPIDS, + // ZHAOXIN_FAM7H_YONGFENG + AMDFAM1AH_ZNVER5 = 36, + // ZHAOXIN_FAM7H_SHIJIDADAO + INTEL_COREI7_DIAMONDRAPIDS = 38, INTEL_COREI7_NOVALAKE, CPU_SUBTYPE_MAX }; diff --git a/llvm/include/llvm/TargetParser/X86TargetParser.def b/llvm/include/llvm/TargetParser/X86TargetParser.def index 09592bcea27f4..8d401e62a6271 100644 --- a/llvm/include/llvm/TargetParser/X86TargetParser.def +++ b/llvm/include/llvm/TargetParser/X86TargetParser.def @@ -13,15 +13,17 @@ // NOTE: NO INCLUDE GUARD DESIRED! #ifndef X86_VENDOR -#define X86_VENDOR(ENUM, STR) +#define X86_VENDOR(ENUM, STR, ABI_VALUE) #endif -X86_VENDOR(VENDOR_INTEL, "intel") -X86_VENDOR(VENDOR_AMD, "amd") +X86_VENDOR(VENDOR_INTEL, "intel", 1) +X86_VENDOR(VENDOR_AMD, "amd", 2) +X86_VENDOR(VENDOR_OTHER, "other", 4) #undef X86_VENDOR // This macro is used for cpu types present in compiler-rt/libgcc. +// ABI_VALUE is used to match #ifndef X86_CPU_TYPE -#define X86_CPU_TYPE(ENUM, STR) +#define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) #endif #ifndef X86_CPU_TYPE_ALIAS @@ -30,26 +32,26 @@ X86_VENDOR(VENDOR_AMD, "amd") // This list must match what is implemented in libgcc and compilert-rt. Clang // uses this to know how to implement __builtin_cpu_is. -X86_CPU_TYPE(INTEL_BONNELL, "bonnell") -X86_CPU_TYPE(INTEL_CORE2, "core2") -X86_CPU_TYPE(INTEL_COREI7, "corei7") -X86_CPU_TYPE(AMDFAM10H, "amdfam10h") -X86_CPU_TYPE(AMDFAM15H, "amdfam15h") -X86_CPU_TYPE(INTEL_SILVERMONT, "silvermont") -X86_CPU_TYPE(INTEL_KNL, "knl") -X86_CPU_TYPE(AMD_BTVER1, "btver1") -X86_CPU_TYPE(AMD_BTVER2, "btver2") -X86_CPU_TYPE(AMDFAM17H, "amdfam17h") -X86_CPU_TYPE(INTEL_KNM, "knm") -X86_CPU_TYPE(INTEL_GOLDMONT, "goldmont") -X86_CPU_TYPE(INTEL_GOLDMONT_PLUS, "goldmont-plus") -X86_CPU_TYPE(INTEL_TREMONT, "tremont") -X86_CPU_TYPE(AMDFAM19H, "amdfam19h") -X86_CPU_TYPE(ZHAOXIN_FAM7H, "zhaoxin_fam7h") -X86_CPU_TYPE(INTEL_SIERRAFOREST, "sierraforest") -X86_CPU_TYPE(INTEL_GRANDRIDGE, "grandridge") -X86_CPU_TYPE(INTEL_CLEARWATERFOREST, "clearwaterforest") -X86_CPU_TYPE(AMDFAM1AH, "amdfam1ah") +X86_CPU_TYPE(INTEL_BONNELL, "bonnell", 1) +X86_CPU_TYPE(INTEL_CORE2, "core2", 2) +X86_CPU_TYPE(INTEL_COREI7, "corei7", 3) +X86_CPU_TYPE(AMDFAM10H, "amdfam10h", 4) +X86_CPU_TYPE(AMDFAM15H, "amdfam15h", 5) +X86_CPU_TYPE(INTEL_SILVERMONT, "silvermont", 6) +X86_CPU_TYPE(INTEL_KNL, "knl", 7) +X86_CPU_TYPE(AMD_BTVER1, "btver1", 8) +X86_CPU_TYPE(AMD_BTVER2, "btver2", 9) +X86_CPU_TYPE(AMDFAM17H, "amdfam17h", 10) +X86_CPU_TYPE(INTEL_KNM, "knm", 11) +X86_CPU_TYPE(INTEL_GOLDMONT, "goldmont", 12) +X86_CPU_TYPE(INTEL_GOLDMONT_PLUS, "goldmont-plus", 13) +X86_CPU_TYPE(INTEL_TREMONT, "tremont", 14) +X86_CPU_TYPE(AMDFAM19H, "amdfam19h", 15) +X86_CPU_TYPE(ZHAOXIN_FAM7H, "zhaoxin_fam7h", 16) +X86_CPU_TYPE(INTEL_SIERRAFOREST, "sierraforest", 17) +X86_CPU_TYPE(INTEL_GRANDRIDGE, "grandridge", 18) +X86_CPU_TYPE(INTEL_CLEARWATERFOREST, "clearwaterforest", 19) +X86_CPU_TYPE(AMDFAM1AH, "amdfam1ah", 20) // Alternate names supported by __builtin_cpu_is and target multiversioning. X86_CPU_TYPE_ALIAS(INTEL_BONNELL, "atom") @@ -63,7 +65,7 @@ X86_CPU_TYPE_ALIAS(INTEL_SILVERMONT, "slm") // This macro is used for cpu subtypes present in compiler-rt/libgcc. #ifndef X86_CPU_SUBTYPE -#define X86_CPU_SUBTYPE(ENUM, STR) +#define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) #endif #ifndef X86_CPU_SUBTYPE_ALIAS @@ -72,43 +74,43 @@ X86_CPU_TYPE_ALIAS(INTEL_SILVERMONT, "slm") // This list must match what is implemented in libgcc and compilert-rt. Clang // uses this to know how to implement __builtin_cpu_is. -X86_CPU_SUBTYPE(INTEL_COREI7_NEHALEM, "nehalem") -X86_CPU_SUBTYPE(INTEL_COREI7_WESTMERE, "westmere") -X86_CPU_SUBTYPE(INTEL_COREI7_SANDYBRIDGE, "sandybridge") -X86_CPU_SUBTYPE(AMDFAM10H_BARCELONA, "barcelona") -X86_CPU_SUBTYPE(AMDFAM10H_SHANGHAI, "shanghai") -X86_CPU_SUBTYPE(AMDFAM10H_ISTANBUL, "istanbul") -X86_CPU_SUBTYPE(AMDFAM15H_BDVER1, "bdver1") -X86_CPU_SUBTYPE(AMDFAM15H_BDVER2, "bdver2") -X86_CPU_SUBTYPE(AMDFAM15H_BDVER3, "bdver3") -X86_CPU_SUBTYPE(AMDFAM15H_BDVER4, "bdver4") -X86_CPU_SUBTYPE(AMDFAM17H_ZNVER1, "znver1") -X86_CPU_SUBTYPE(INTEL_COREI7_IVYBRIDGE, "ivybridge") -X86_CPU_SUBTYPE(INTEL_COREI7_HASWELL, "haswell") -X86_CPU_SUBTYPE(INTEL_COREI7_BROADWELL, "broadwell") -X86_CPU_SUBTYPE(INTEL_COREI7_SKYLAKE, "skylake") -X86_CPU_SUBTYPE(INTEL_COREI7_SKYLAKE_AVX512, "skylake-avx512") -X86_CPU_SUBTYPE(INTEL_COREI7_CANNONLAKE, "cannonlake") -X86_CPU_SUBTYPE(INTEL_COREI7_ICELAKE_CLIENT, "icelake-client") -X86_CPU_SUBTYPE(INTEL_COREI7_ICELAKE_SERVER, "icelake-server") -X86_CPU_SUBTYPE(AMDFAM17H_ZNVER2, "znver2") -X86_CPU_SUBTYPE(INTEL_COREI7_CASCADELAKE, "cascadelake") -X86_CPU_SUBTYPE(INTEL_COREI7_TIGERLAKE, "tigerlake") -X86_CPU_SUBTYPE(INTEL_COREI7_COOPERLAKE, "cooperlake") -X86_CPU_SUBTYPE(INTEL_COREI7_SAPPHIRERAPIDS, "sapphirerapids") -X86_CPU_SUBTYPE(INTEL_COREI7_ALDERLAKE, "alderlake") -X86_CPU_SUBTYPE(AMDFAM19H_ZNVER3, "znver3") -X86_CPU_SUBTYPE(INTEL_COREI7_ROCKETLAKE, "rocketlake") -X86_CPU_SUBTYPE(ZHAOXIN_FAM7H_LUJIAZUI, "zhaoxin_fam7h_lujiazui") -X86_CPU_SUBTYPE(AMDFAM19H_ZNVER4, "znver4") -X86_CPU_SUBTYPE(INTEL_COREI7_GRANITERAPIDS, "graniterapids") -X86_CPU_SUBTYPE(INTEL_COREI7_GRANITERAPIDS_D,"graniterapids-d") -X86_CPU_SUBTYPE(INTEL_COREI7_ARROWLAKE, "arrowlake") -X86_CPU_SUBTYPE(INTEL_COREI7_ARROWLAKE_S, "arrowlake-s") -X86_CPU_SUBTYPE(INTEL_COREI7_PANTHERLAKE, "pantherlake") -X86_CPU_SUBTYPE(AMDFAM1AH_ZNVER5, "znver5") -X86_CPU_SUBTYPE(INTEL_COREI7_DIAMONDRAPIDS, "diamondrapids") -X86_CPU_SUBTYPE(INTEL_COREI7_NOVALAKE, "novalake") +X86_CPU_SUBTYPE(INTEL_COREI7_NEHALEM, "nehalem", 1) +X86_CPU_SUBTYPE(INTEL_COREI7_WESTMERE, "westmere", 2) +X86_CPU_SUBTYPE(INTEL_COREI7_SANDYBRIDGE, "sandybridge", 3) +X86_CPU_SUBTYPE(AMDFAM10H_BARCELONA, "barcelona", 4) +X86_CPU_SUBTYPE(AMDFAM10H_SHANGHAI, "shanghai", 5) +X86_CPU_SUBTYPE(AMDFAM10H_ISTANBUL, "istanbul", 6) +X86_CPU_SUBTYPE(AMDFAM15H_BDVER1, "bdver1", 7) +X86_CPU_SUBTYPE(AMDFAM15H_BDVER2, "bdver2", 8) +X86_CPU_SUBTYPE(AMDFAM15H_BDVER3, "bdver3", 9) +X86_CPU_SUBTYPE(AMDFAM15H_BDVER4, "bdver4", 10) +X86_CPU_SUBTYPE(AMDFAM17H_ZNVER1, "znver1", 11) +X86_CPU_SUBTYPE(INTEL_COREI7_IVYBRIDGE, "ivybridge", 12) +X86_CPU_SUBTYPE(INTEL_COREI7_HASWELL, "haswell", 13) +X86_CPU_SUBTYPE(INTEL_COREI7_BROADWELL, "broadwell", 14) +X86_CPU_SUBTYPE(INTEL_COREI7_SKYLAKE, "skylake", 15) +X86_CPU_SUBTYPE(INTEL_COREI7_SKYLAKE_AVX512, "skylake-avx512", 16) +X86_CPU_SUBTYPE(INTEL_COREI7_CANNONLAKE, "cannonlake", 17) +X86_CPU_SUBTYPE(INTEL_COREI7_ICELAKE_CLIENT, "icelake-client", 18) +X86_CPU_SUBTYPE(INTEL_COREI7_ICELAKE_SERVER, "icelake-server", 19) +X86_CPU_SUBTYPE(AMDFAM17H_ZNVER2, "znver2", 20) +X86_CPU_SUBTYPE(INTEL_COREI7_CASCADELAKE, "cascadelake", 21) +X86_CPU_SUBTYPE(INTEL_COREI7_TIGERLAKE, "tigerlake", 22) +X86_CPU_SUBTYPE(INTEL_COREI7_COOPERLAKE, "cooperlake", 23) +X86_CPU_SUBTYPE(INTEL_COREI7_SAPPHIRERAPIDS, "sapphirerapids", 24) +X86_CPU_SUBTYPE(INTEL_COREI7_ALDERLAKE, "alderlake", 25) +X86_CPU_SUBTYPE(AMDFAM19H_ZNVER3, "znver3", 26) +X86_CPU_SUBTYPE(INTEL_COREI7_ROCKETLAKE, "rocketlake", 27) +X86_CPU_SUBTYPE(ZHAOXIN_FAM7H_LUJIAZUI, "zhaoxin_fam7h_lujiazui", 28) +X86_CPU_SUBTYPE(AMDFAM19H_ZNVER4, "znver4", 29) +X86_CPU_SUBTYPE(INTEL_COREI7_GRANITERAPIDS, "graniterapids", 30) +X86_CPU_SUBTYPE(INTEL_COREI7_GRANITERAPIDS_D,"graniterapids-d", 31) +X86_CPU_SUBTYPE(INTEL_COREI7_ARROWLAKE, "arrowlake", 32) +X86_CPU_SUBTYPE(INTEL_COREI7_ARROWLAKE_S, "arrowlake-s", 33) +X86_CPU_SUBTYPE(INTEL_COREI7_PANTHERLAKE, "pantherlake", 34) +X86_CPU_SUBTYPE(AMDFAM1AH_ZNVER5, "znver5", 36) +X86_CPU_SUBTYPE(INTEL_COREI7_DIAMONDRAPIDS, "diamondrapids", 38) +X86_CPU_SUBTYPE(INTEL_COREI7_NOVALAKE, "novalake", 39) // Alternate names supported by __builtin_cpu_is and target multiversioning. X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_ALDERLAKE, "raptorlake") diff --git a/llvm/include/llvm/TargetParser/X86TargetParser.h b/llvm/include/llvm/TargetParser/X86TargetParser.h index 46061f9d1fc7d..e7075ff0ed763 100644 --- a/llvm/include/llvm/TargetParser/X86TargetParser.h +++ b/llvm/include/llvm/TargetParser/X86TargetParser.h @@ -27,19 +27,17 @@ namespace X86 { // This should be kept in sync with libcc/compiler-rt as its included by clang // as a proxy for what's in libgcc/compiler-rt. enum ProcessorVendors : unsigned { - VENDOR_DUMMY, -#define X86_VENDOR(ENUM, STRING) \ - ENUM, +#define X86_VENDOR(ENUM, STRING, ABI_VALUE) \ + ENUM = ABI_VALUE, #include "llvm/TargetParser/X86TargetParser.def" - VENDOR_OTHER }; // This should be kept in sync with libcc/compiler-rt as its included by clang // as a proxy for what's in libgcc/compiler-rt. enum ProcessorTypes : unsigned { CPU_TYPE_DUMMY, -#define X86_CPU_TYPE(ENUM, STRING) \ - ENUM, +#define X86_CPU_TYPE(ENUM, STRING, ABI_VALUE) \ + ENUM = ABI_VALUE, #include "llvm/TargetParser/X86TargetParser.def" CPU_TYPE_MAX }; @@ -48,8 +46,8 @@ enum ProcessorTypes : unsigned { // as a proxy for what's in libgcc/compiler-rt. enum ProcessorSubtypes : unsigned { CPU_SUBTYPE_DUMMY, -#define X86_CPU_SUBTYPE(ENUM, STRING) \ - ENUM, +#define X86_CPU_SUBTYPE(ENUM, STRING, ABI_VALUE) \ + ENUM = ABI_VALUE, #include "llvm/TargetParser/X86TargetParser.def" CPU_SUBTYPE_MAX }; From cf0bdd70907ab97821db47372fe2d4439e045cb0 Mon Sep 17 00:00:00 2001 From: "Pirog, Mikolaj Maciej" <[email protected]> Date: Mon, 8 Dec 2025 19:02:12 +0100 Subject: [PATCH 2/3] Further work --- clang/lib/CodeGen/TargetBuiltins/X86.cpp | 12 ++--- .../llvm/TargetParser/X86TargetParser.def | 47 +++++++------------ .../llvm/TargetParser/X86TargetParser.h | 20 ++------ llvm/lib/TargetParser/X86TargetParser.cpp | 4 +- 4 files changed, 28 insertions(+), 55 deletions(-) diff --git a/clang/lib/CodeGen/TargetBuiltins/X86.cpp b/clang/lib/CodeGen/TargetBuiltins/X86.cpp index f57544def1fe5..df63c1ce7b613 100644 --- a/clang/lib/CodeGen/TargetBuiltins/X86.cpp +++ b/clang/lib/CodeGen/TargetBuiltins/X86.cpp @@ -628,18 +628,14 @@ Value *CodeGenFunction::EmitX86CpuIs(StringRef CPUStr) { cast<llvm::GlobalValue>(CpuModel)->setDSOLocal(true); // Calculate the index needed to access the correct field based on the - // range. Also adjust the expected value. + // range. ABI_VALUE matches with compiler-rt/libgcc values. auto [Index, Value] = StringSwitch<std::pair<unsigned, unsigned>>(CPUStr) #define X86_VENDOR(ENUM, STRING, ABI_VALUE) \ - .Case(STRING, {0u, static_cast<unsigned>(llvm::X86::ENUM)}) -#define X86_CPU_TYPE_ALIAS(ENUM, ALIAS) \ - .Case(ALIAS, {1u, static_cast<unsigned>(llvm::X86::ENUM)}) + .Case(STRING, {0u, ABI_VALUE}) #define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) \ - .Case(STR, {1u, static_cast<unsigned>(llvm::X86::ENUM)}) -#define X86_CPU_SUBTYPE_ALIAS(ENUM, ALIAS) \ - .Case(ALIAS, {2u, static_cast<unsigned>(llvm::X86::ENUM)}) + .Case(STR, {1u, ABI_VALUE}) #define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) \ - .Case(STR, {2u, static_cast<unsigned>(llvm::X86::ENUM)}) + .Case(STR, {2u, ABI_VALUE}) #include "llvm/TargetParser/X86TargetParser.def" .Default({0, 0}); assert(Value != 0 && "Invalid CPUStr passed to CpuIs"); diff --git a/llvm/include/llvm/TargetParser/X86TargetParser.def b/llvm/include/llvm/TargetParser/X86TargetParser.def index 8d401e62a6271..f1b2898128e07 100644 --- a/llvm/include/llvm/TargetParser/X86TargetParser.def +++ b/llvm/include/llvm/TargetParser/X86TargetParser.def @@ -12,6 +12,9 @@ // NOTE: NO INCLUDE GUARD DESIRED! +// ABI_VALUE is used throughout the file by compiler frontend to match values +// in compiler-rt/libgcc. + #ifndef X86_VENDOR #define X86_VENDOR(ENUM, STR, ABI_VALUE) #endif @@ -20,16 +23,10 @@ X86_VENDOR(VENDOR_AMD, "amd", 2) X86_VENDOR(VENDOR_OTHER, "other", 4) #undef X86_VENDOR -// This macro is used for cpu types present in compiler-rt/libgcc. -// ABI_VALUE is used to match #ifndef X86_CPU_TYPE #define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) #endif -#ifndef X86_CPU_TYPE_ALIAS -#define X86_CPU_TYPE_ALIAS(ENUM, STR) -#endif - // This list must match what is implemented in libgcc and compilert-rt. Clang // uses this to know how to implement __builtin_cpu_is. X86_CPU_TYPE(INTEL_BONNELL, "bonnell", 1) @@ -53,14 +50,14 @@ X86_CPU_TYPE(INTEL_GRANDRIDGE, "grandridge", 18) X86_CPU_TYPE(INTEL_CLEARWATERFOREST, "clearwaterforest", 19) X86_CPU_TYPE(AMDFAM1AH, "amdfam1ah", 20) -// Alternate names supported by __builtin_cpu_is and target multiversioning. -X86_CPU_TYPE_ALIAS(INTEL_BONNELL, "atom") -X86_CPU_TYPE_ALIAS(AMDFAM10H, "amdfam10") -X86_CPU_TYPE_ALIAS(AMDFAM15H, "amdfam15") -X86_CPU_TYPE_ALIAS(AMDFAM1AH, "amdfam1a") -X86_CPU_TYPE_ALIAS(INTEL_SILVERMONT, "slm") +// Aliases -- a different name for the same cpu, represented as having the same +// ABI_VALUE. +X86_CPU_TYPE(ATOM, "atom", 1) +X86_CPU_TYPE(AMDFAM10, "amdfam10", 4) +X86_CPU_TYPE(AMDFAM15, "amdfam15", 5) +X86_CPU_TYPE(AMDFAM1A, "amdfam1a", 20) +X86_CPU_TYPE(SLM, "slm", 6) -#undef X86_CPU_TYPE_ALIAS #undef X86_CPU_TYPE // This macro is used for cpu subtypes present in compiler-rt/libgcc. @@ -68,10 +65,6 @@ X86_CPU_TYPE_ALIAS(INTEL_SILVERMONT, "slm") #define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) #endif -#ifndef X86_CPU_SUBTYPE_ALIAS -#define X86_CPU_SUBTYPE_ALIAS(ENUM, STR) -#endif - // This list must match what is implemented in libgcc and compilert-rt. Clang // uses this to know how to implement __builtin_cpu_is. X86_CPU_SUBTYPE(INTEL_COREI7_NEHALEM, "nehalem", 1) @@ -112,23 +105,19 @@ X86_CPU_SUBTYPE(AMDFAM1AH_ZNVER5, "znver5", 36) X86_CPU_SUBTYPE(INTEL_COREI7_DIAMONDRAPIDS, "diamondrapids", 38) X86_CPU_SUBTYPE(INTEL_COREI7_NOVALAKE, "novalake", 39) -// Alternate names supported by __builtin_cpu_is and target multiversioning. -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_ALDERLAKE, "raptorlake") -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_ALDERLAKE, "meteorlake") -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_SAPPHIRERAPIDS, "emeraldrapids") -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_ARROWLAKE_S,"lunarlake") -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_ALDERLAKE, "gracemont") -X86_CPU_SUBTYPE_ALIAS(INTEL_COREI7_PANTHERLAKE, "wildcatlake") +// Aliases +X86_CPU_SUBTYPE(INTEL_COREI7_RAPTORLAKE, "raptorlake", 25) +X86_CPU_SUBTYPE(INTEL_COREI7_METEORLAKE, "meteorlake", 25) +X86_CPU_SUBTYPE(INTEL_COREI7_EMERALRAPIDS, "emeraldrapids", 24) +X86_CPU_SUBTYPE(INTEL_COREI7_LUNARLAKE, "lunarlake", 33) +X86_CPU_SUBTYPE(INTEL_COREI7_GRACEMONT, "gracemont", 25) +X86_CPU_SUBTYPE(INTEL_COREI7_WILDCATLAKE, "wildcatlake", 34) -#undef X86_CPU_SUBTYPE_ALIAS #undef X86_CPU_SUBTYPE // X86_FEATURE_COMPAT is used for cpu types present in compiler-rt/libgcc (i.e. // types we can multiversion on). The third parameter PRIORITY is required // by the attribute 'target' checking. - -// Order of bits has to match what's implemented in compiler-rt/libgcc. That's what the -// ABI_VALUE is for - CodeGenFunction::GetX86CpuSupportsMask uses it. #ifndef X86_FEATURE_COMPAT #define X86_FEATURE_COMPAT(ENUM, STR, PRIORITY, ABI_VALUE) X86_FEATURE(ENUM, STR) #endif @@ -277,7 +266,7 @@ X86_FEATURE (RETPOLINE_INDIRECT_CALLS, "retpoline-indirect-calls") X86_FEATURE (LVI_CFI, "lvi-cfi") X86_FEATURE (LVI_LOAD_HARDENING, "lvi-load-hardening") -// Max number of priorities. Priorities form a consecutive range +// Max number of priorities. Priorities form a consecutive range. #define MAX_PRIORITY 35 #undef X86_FEATURE_COMPAT diff --git a/llvm/include/llvm/TargetParser/X86TargetParser.h b/llvm/include/llvm/TargetParser/X86TargetParser.h index e7075ff0ed763..d698592a86a56 100644 --- a/llvm/include/llvm/TargetParser/X86TargetParser.h +++ b/llvm/include/llvm/TargetParser/X86TargetParser.h @@ -24,36 +24,24 @@ class StringRef; namespace X86 { -// This should be kept in sync with libcc/compiler-rt as its included by clang -// as a proxy for what's in libgcc/compiler-rt. enum ProcessorVendors : unsigned { -#define X86_VENDOR(ENUM, STRING, ABI_VALUE) \ - ENUM = ABI_VALUE, +#define X86_VENDOR(ENUM, STRING, ABI_VALUE) ENUM, #include "llvm/TargetParser/X86TargetParser.def" + CPU_VENDOR_MAX }; -// This should be kept in sync with libcc/compiler-rt as its included by clang -// as a proxy for what's in libgcc/compiler-rt. enum ProcessorTypes : unsigned { - CPU_TYPE_DUMMY, -#define X86_CPU_TYPE(ENUM, STRING, ABI_VALUE) \ - ENUM = ABI_VALUE, +#define X86_CPU_TYPE(ENUM, STRING, ABI_VALUE) ENUM, #include "llvm/TargetParser/X86TargetParser.def" CPU_TYPE_MAX }; -// This should be kept in sync with libcc/compiler-rt as its included by clang -// as a proxy for what's in libgcc/compiler-rt. enum ProcessorSubtypes : unsigned { - CPU_SUBTYPE_DUMMY, -#define X86_CPU_SUBTYPE(ENUM, STRING, ABI_VALUE) \ - ENUM = ABI_VALUE, +#define X86_CPU_SUBTYPE(ENUM, STRING, ABI_VALUE) ENUM, #include "llvm/TargetParser/X86TargetParser.def" CPU_SUBTYPE_MAX }; -// This should be kept in sync with libcc/compiler-rt as it should be used -// by clang as a proxy for what's in libgcc/compiler-rt. enum ProcessorFeatures { #define X86_FEATURE(ENUM, STRING) FEATURE_##ENUM, #include "llvm/TargetParser/X86TargetParser.def" diff --git a/llvm/lib/TargetParser/X86TargetParser.cpp b/llvm/lib/TargetParser/X86TargetParser.cpp index 2810849e4af9e..c3365da6b0136 100644 --- a/llvm/lib/TargetParser/X86TargetParser.cpp +++ b/llvm/lib/TargetParser/X86TargetParser.cpp @@ -762,9 +762,9 @@ llvm::X86::getCpuSupportsMask(ArrayRef<StringRef> FeatureStrs) { std::array<uint32_t, 4> FeatureMask{}; for (StringRef FeatureStr : FeatureStrs) { unsigned Feature = StringSwitch<unsigned>(FeatureStr) + // ABI_VALUE is used to match values in compiler-rt/libgcc #define X86_FEATURE_COMPAT(ENUM, STR, PRIORITY, ABI_VALUE) .Case(STR, ABI_VALUE) -#define X86_MICROARCH_LEVEL(ENUM, STR, PRIORITY, ABI_VALUE) \ - .Case(STR, ABI_VALUE) +#define X86_MICROARCH_LEVEL(ENUM, STR, PRIORITY, ABI_VALUE) .Case(STR, ABI_VALUE) #include "llvm/TargetParser/X86TargetParser.def" ; assert(Feature / 32 < FeatureMask.size()); From e3c8278650c1916f9de0e1f40c20fb76c0211165 Mon Sep 17 00:00:00 2001 From: "Pirog, Mikolaj Maciej" <[email protected]> Date: Mon, 8 Dec 2025 19:03:38 +0100 Subject: [PATCH 3/3] Further work --- clang/lib/Basic/Targets/X86.cpp | 2 -- 1 file changed, 2 deletions(-) diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp index d5af21c155c8a..0c72229623eb1 100644 --- a/clang/lib/Basic/Targets/X86.cpp +++ b/clang/lib/Basic/Targets/X86.cpp @@ -1364,9 +1364,7 @@ void X86TargetInfo::getCPUSpecificCPUDispatchFeatures( bool X86TargetInfo::validateCpuIs(StringRef FeatureStr) const { return llvm::StringSwitch<bool>(FeatureStr) #define X86_VENDOR(ENUM, STRING, ABI_VALUE) .Case(STRING, true) -#define X86_CPU_TYPE_ALIAS(ENUM, ALIAS) .Case(ALIAS, true) #define X86_CPU_TYPE(ENUM, STR, ABI_VALUE) .Case(STR, true) -#define X86_CPU_SUBTYPE_ALIAS(ENUM, ALIAS) .Case(ALIAS, true) #define X86_CPU_SUBTYPE(ENUM, STR, ABI_VALUE) .Case(STR, true) #include "llvm/TargetParser/X86TargetParser.def" .Default(false); _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
