Author: Michael Maitland Date: 2023-02-28T10:45:35-08:00 New Revision: 003078b62d8d40fc000462a97c3b70e01cbe4458
URL: https://github.com/llvm/llvm-project/commit/003078b62d8d40fc000462a97c3b70e01cbe4458 DIFF: https://github.com/llvm/llvm-project/commit/003078b62d8d40fc000462a97c3b70e01cbe4458.diff LOG: [Clang][Driver] Add -mcpu=help and -mtune=help to clang Clang currently uses `-mcpu=?` and `-mtune=?`. The `?` causes errors on some shells such as zsh since it is a special character. In order for it to work on shells such as zsh, the option must be passed in quotes or escaped. This patch adds `-mcpu=help` and `-mtune=help` as another alias for `--print-supported-cpus`. In llc, `-mcpu=help` is an alias to print supported cpus. Differential Revision: https://reviews.llvm.org/D144914 Added: Modified: clang/docs/CommandGuide/clang.rst clang/include/clang/Driver/Options.td clang/test/Driver/print-supported-cpus.c Removed: ################################################################################ diff --git a/clang/docs/CommandGuide/clang.rst b/clang/docs/CommandGuide/clang.rst index 7277b598f0cad..7fae1b5cec53c 100644 --- a/clang/docs/CommandGuide/clang.rst +++ b/clang/docs/CommandGuide/clang.rst @@ -373,6 +373,10 @@ number of cross compilers, or may only support a native target. Acts as an alias for :option:`--print-supported-cpus`. +.. option:: -mcpu=help, -mtune=help + + Acts as an alias for :option:`--print-supported-cpus`. + .. option:: -march=<cpu> Specify that Clang should generate code for a specific processor family diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td index 5b6c0e6e914d0..6bf5fafd6d7cc 100644 --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -4347,6 +4347,8 @@ def print_supported_cpus : Flag<["-", "--"], "print-supported-cpus">, MarshallingInfoFlag<FrontendOpts<"PrintSupportedCPUs">>; def mcpu_EQ_QUESTION : Flag<["-"], "mcpu=?">, Alias<print_supported_cpus>; def mtune_EQ_QUESTION : Flag<["-"], "mtune=?">, Alias<print_supported_cpus>; +def mcpu_EQ_help : Flag<["-"], "mcpu=help">, Alias<print_supported_cpus>; +def mtune_EQ_help : Flag<["-"], "mtune=help">, Alias<print_supported_cpus>; def time : Flag<["-"], "time">, HelpText<"Time individual commands">; def traditional_cpp : Flag<["-", "--"], "traditional-cpp">, Flags<[CC1Option]>, diff --git a/clang/test/Driver/print-supported-cpus.c b/clang/test/Driver/print-supported-cpus.c index 468382cd955fe..8e79a011fbec8 100644 --- a/clang/test/Driver/print-supported-cpus.c +++ b/clang/test/Driver/print-supported-cpus.c @@ -13,6 +13,13 @@ // RUN: %clang --target=x86_64-unknown-linux-gnu -mtune=? -fuse-ld=dummy 2>&1 | \ // RUN: FileCheck %s --check-prefix=CHECK-X86 +// Test -mcpu=help and -mtune=help alises. +// RUN: %clang --target=x86_64-unknown-linux-gnu -mcpu=help 2>&1 | \ +// RUN: FileCheck %s --check-prefix=CHECK-X86 + +// RUN: %clang --target=x86_64-unknown-linux-gnu -mtune=help -fuse-ld=dummy 2>&1 | \ +// RUN: FileCheck %s --check-prefix=CHECK-X86 + // CHECK-NOT: warning: argument unused during compilation // CHECK-X86: Target: x86_64-unknown-linux-gnu // CHECK-X86: corei7 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
