https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95843
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:6c35d16a3925958b3a22426de0cb8e04f654b6dd commit r11-1629-g6c35d16a3925958b3a22426de0cb8e04f654b6dd Author: H.J. Lu <hjl.to...@gmail.com> Date: Wed Jun 24 04:39:16 2020 -0700 x86: Share _isa_names_table and use cpuinfo.h Both driver-i386.c and libgcc use CPUID to detect the processor name as well as available ISAs. To detect the same processor or ISAs, the same detection logic is duplicated in 2 places. Sometimes only one place was up to date or got it right. Sometimes both places got it wrong. 1. Add common/config/i386/i386-isas.h to define _isa_names_table. 2. Use isa_names_table to auto-generate ISA command-line options. 3. Use isa_names_table to auto-generate __builtin_cpu_supports tests. 4. Use common/config/i386/cpuinfo.h to check available ISAs and detect newer Intel processors in driver-i386.c and builtin_target.c. 5. Detection of AMD processors and older processors in driver-i386.c is unchanged. gcc/ PR target/95843 * common/config/i386/i386-isas.h: New file. Extracted from gcc/config/i386/i386-builtins.c. (_isa_names_table): Add option. (ISA_NAMES_TABLE_START): New. (ISA_NAMES_TABLE_END): Likewise. (ISA_NAMES_TABLE_ENTRY): Likewise. (isa_names_table): Defined with ISA_NAMES_TABLE_START, ISA_NAMES_TABLE_END and ISA_NAMES_TABLE_ENTRY. Add more ISAs from enum processor_features. * config/i386/driver-i386.c: Include "common/config/i386/cpuinfo.h" and "common/config/i386/i386-isas.h". (has_feature): New macro. (host_detect_local_cpu): Call cpu_indicator_init to get CPU features. Use has_feature to detect processor features. Call Call get_intel_cpu to get the newer Intel CPU name. Use isa_names_table to generate command-line options. * config/i386/i386-builtins.c: Include "common/config/i386/i386-isas.h". (_arch_names_table): Removed. (isa_names_table): Likewise. gcc/testsuite/ PR target/95843 * gcc.target/i386/builtin_target.c: Include <stdlib.h>, ../../../common/config/i386/i386-cpuinfo.h and ../../../common/config/i386/cpuinfo.h. (check_amd_cpu_model): Removed. (check_intel_cpu_model): Likewise, (CHECK___builtin_cpu_is): New. (gcc_assert): New. Defined as assert. (gcc_unreachable): New. Defined as abort. (inline): New. Defined as empty. (ISA_NAMES_TABLE_START): Likewise. (ISA_NAMES_TABLE_END): Likewise. (ISA_NAMES_TABLE_ENTRY): New. (check_features): Include "../../../common/config/i386/i386-isas.h". (check_detailed): Call cpu_indicator_init. Always call check_features. Call get_amd_cpu instead of check_amd_cpu_model. Call get_intel_cpu instead of check_intel_cpu_model.
