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From: Richard Sandiford <rsandifo@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r12-8850] aarch64: Define __ARM_FEATURE_RCPC Date: Thu, 20 Oct 2022 14:34:20 +0000 (GMT) [thread overview] Message-ID: <20221020143420.D3D573856172@sourceware.org> (raw) https://gcc.gnu.org/g:40a727379f3e8e6a83aea4e94c38dfa5dd8ef33d commit r12-8850-g40a727379f3e8e6a83aea4e94c38dfa5dd8ef33d Author: Richard Sandiford <richard.sandiford@arm.com> Date: Thu Oct 20 15:34:08 2022 +0100 aarch64: Define __ARM_FEATURE_RCPC https://github.com/ARM-software/acle/pull/199 adds a new feature macro for RCPC, for use in things like inline assembly. This patch adds the associated support to GCC. Also, RCPC is required for Armv8.3-A and later, but the armv8.3-a entry didn't include it. This was probably harmless in practice since GCC simply ignored the extension until now. (The GAS definition is OK.) gcc/ * config/aarch64/aarch64.h (AARCH64_FL_FOR_ARCH8_3): Add AARCH64_FL_RCPC. (AARCH64_ISA_RCPC): New macro. * config/aarch64/aarch64-cores.def (thunderx3t110, zeus, neoverse-v1) (neoverse-512tvb, saphira): Remove RCPC from these Armv8.3-A+ cores. * config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins): Define __ARM_FEATURE_RCPC when appropriate. gcc/testsuite/ * gcc.target/aarch64/pragma_cpp_predefs_1.c: Add RCPC tests. Diff: --- gcc/config/aarch64/aarch64-c.cc | 1 + gcc/config/aarch64/aarch64-cores.def | 10 +++++----- gcc/config/aarch64/aarch64.h | 4 +++- .../gcc.target/aarch64/pragma_cpp_predefs_1.c | 20 ++++++++++++++++++++ 4 files changed, 29 insertions(+), 6 deletions(-) diff --git a/gcc/config/aarch64/aarch64-c.cc b/gcc/config/aarch64/aarch64-c.cc index 767ee0c763c..a4c407724a7 100644 --- a/gcc/config/aarch64/aarch64-c.cc +++ b/gcc/config/aarch64/aarch64-c.cc @@ -202,6 +202,7 @@ aarch64_update_cpp_builtins (cpp_reader *pfile) "__ARM_FEATURE_BF16_SCALAR_ARITHMETIC", pfile); aarch64_def_or_undef (TARGET_LS64, "__ARM_FEATURE_LS64", pfile); + aarch64_def_or_undef (AARCH64_ISA_RCPC, "__ARM_FEATURE_RCPC", pfile); /* Not for ACLE, but required to keep "float.h" correct if we switch target between implementations that do or do not support ARMv8.2-A diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def index 0402bfb748f..8da254f6924 100644 --- a/gcc/config/aarch64/aarch64-cores.def +++ b/gcc/config/aarch64/aarch64-cores.def @@ -133,17 +133,17 @@ AARCH64_CORE("tsv110", tsv110, tsv110, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_ /* ARMv8.3-A Architecture Processors. */ /* Marvell cores (TX3). */ -AARCH64_CORE("thunderx3t110", thunderx3t110, thunderx3t110, 8_3A, AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_CRYPTO | AARCH64_FL_RCPC | AARCH64_FL_SM4 | AARCH64_FL_SHA3 | AARCH64_FL_F16FML | AARCH64_FL_RCPC8_4, thunderx3t110, 0x43, 0x0b8, 0x0a) +AARCH64_CORE("thunderx3t110", thunderx3t110, thunderx3t110, 8_3A, AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_CRYPTO | AARCH64_FL_SM4 | AARCH64_FL_SHA3 | AARCH64_FL_F16FML | AARCH64_FL_RCPC8_4, thunderx3t110, 0x43, 0x0b8, 0x0a) /* ARMv8.4-A Architecture Processors. */ /* Arm ('A') cores. */ -AARCH64_CORE("zeus", zeus, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RCPC | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoversev1, 0x41, 0xd40, -1) -AARCH64_CORE("neoverse-v1", neoversev1, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RCPC | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoversev1, 0x41, 0xd40, -1) -AARCH64_CORE("neoverse-512tvb", neoverse512tvb, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RCPC | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoverse512tvb, INVALID_IMP, INVALID_CORE, -1) +AARCH64_CORE("zeus", zeus, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoversev1, 0x41, 0xd40, -1) +AARCH64_CORE("neoverse-v1", neoversev1, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoversev1, 0x41, 0xd40, -1) +AARCH64_CORE("neoverse-512tvb", neoverse512tvb, cortexa57, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_I8MM | AARCH64_FL_BF16 | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS | AARCH64_FL_RNG, neoverse512tvb, INVALID_IMP, INVALID_CORE, -1) /* Qualcomm ('Q') cores. */ -AARCH64_CORE("saphira", saphira, saphira, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_CRYPTO | AARCH64_FL_RCPC, saphira, 0x51, 0xC01, -1) +AARCH64_CORE("saphira", saphira, saphira, 8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_CRYPTO, saphira, 0x51, 0xC01, -1) /* ARMv8-A big.LITTLE implementations. */ diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h index 359b6e8561f..3e308ad6239 100644 --- a/gcc/config/aarch64/aarch64.h +++ b/gcc/config/aarch64/aarch64.h @@ -260,7 +260,8 @@ extern unsigned aarch64_architecture_version; #define AARCH64_FL_FOR_ARCH8_2 \ (AARCH64_FL_FOR_ARCH8_1 | AARCH64_FL_V8_2) #define AARCH64_FL_FOR_ARCH8_3 \ - (AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_V8_3 | AARCH64_FL_PAUTH) + (AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_V8_3 | AARCH64_FL_PAUTH \ + | AARCH64_FL_RCPC) #define AARCH64_FL_FOR_ARCH8_4 \ (AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_V8_4 | AARCH64_FL_F16FML \ | AARCH64_FL_DOTPROD | AARCH64_FL_RCPC8_4 | AARCH64_FL_FLAGM) @@ -305,6 +306,7 @@ extern unsigned aarch64_architecture_version; #define AARCH64_ISA_SM4 (aarch64_isa_flags & AARCH64_FL_SM4) #define AARCH64_ISA_SHA3 (aarch64_isa_flags & AARCH64_FL_SHA3) #define AARCH64_ISA_F16FML (aarch64_isa_flags & AARCH64_FL_F16FML) +#define AARCH64_ISA_RCPC (aarch64_isa_flags & AARCH64_FL_RCPC) #define AARCH64_ISA_RCPC8_4 (aarch64_isa_flags & AARCH64_FL_RCPC8_4) #define AARCH64_ISA_RNG (aarch64_isa_flags & AARCH64_FL_RNG) #define AARCH64_ISA_V8_5 (aarch64_isa_flags & AARCH64_FL_V8_5) diff --git a/gcc/testsuite/gcc.target/aarch64/pragma_cpp_predefs_1.c b/gcc/testsuite/gcc.target/aarch64/pragma_cpp_predefs_1.c index bfb044f5d14..307fa3d67da 100644 --- a/gcc/testsuite/gcc.target/aarch64/pragma_cpp_predefs_1.c +++ b/gcc/testsuite/gcc.target/aarch64/pragma_cpp_predefs_1.c @@ -248,6 +248,26 @@ #error "__ARM_FEATURE_CRC32 is not defined but should be!" #endif +#pragma GCC target ("arch=armv8.2-a") +#ifdef __ARM_FEATURE_RCPC +#error "__ARM_FEATURE_RCPC is defined but should not be!" +#endif + +#pragma GCC target ("arch=armv8.2-a+rcpc") +#ifndef __ARM_FEATURE_RCPC +#error "__ARM_FEATURE_RCPC is not defined but should be!" +#endif + +#pragma GCC target ("+norcpc") +#ifdef __ARM_FEATURE_RCPC +#error "__ARM_FEATURE_RCPC is defined but should not be!" +#endif + +#pragma GCC target ("arch=armv8.3-a") +#ifndef __ARM_FEATURE_RCPC +#error "__ARM_FEATURE_RCPC is not defined but should be!" +#endif + int foo (int a) {
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