Author: Hsiangkai Wang Date: 2020-06-28T00:54:07+08:00 New Revision: d698ff92a59c0632aa6a88b72890eb401bd64faa
URL: https://github.com/llvm/llvm-project/commit/d698ff92a59c0632aa6a88b72890eb401bd64faa DIFF: https://github.com/llvm/llvm-project/commit/d698ff92a59c0632aa6a88b72890eb401bd64faa.diff LOG: [RISCV] Support experimental v extensions. This follows the design as discussed on the mailing lists in the following RFC: http://lists.llvm.org/pipermail/llvm-dev/2020-January/138364.html Support for the vector 'v' extension v0.8. Differential revision: https://reviews.llvm.org/D81188 Added: Modified: clang/lib/Driver/ToolChains/Arch/RISCV.cpp clang/test/Driver/riscv-arch.c Removed: ################################################################################ diff --git a/clang/lib/Driver/ToolChains/Arch/RISCV.cpp b/clang/lib/Driver/ToolChains/Arch/RISCV.cpp index f16827e00f1f..8659ebf17a72 100644 --- a/clang/lib/Driver/ToolChains/Arch/RISCV.cpp +++ b/clang/lib/Driver/ToolChains/Arch/RISCV.cpp @@ -62,6 +62,8 @@ isExperimentalExtension(StringRef Ext) { Ext == "zbf" || Ext == "zbm" || Ext == "zbp" || Ext == "zbr" || Ext == "zbs" || Ext == "zbt" || Ext == "zbproposedc") return RISCVExtensionVersion{"0", "92"}; + if (Ext == "v") + return RISCVExtensionVersion{"0", "8"}; return None; } @@ -399,6 +401,9 @@ static bool getArchFeatures(const Driver &D, StringRef MArch, case 'b': Features.push_back("+experimental-b"); break; + case 'v': + Features.push_back("+experimental-v"); + break; } // Consume full extension name and version, including any optional '_' diff --git a/clang/test/Driver/riscv-arch.c b/clang/test/Driver/riscv-arch.c index ba93be9caa36..e3062feb7dee 100644 --- a/clang/test/Driver/riscv-arch.c +++ b/clang/test/Driver/riscv-arch.c @@ -360,3 +360,22 @@ // RUN: -fsyntax-only 2>&1 | FileCheck -check-prefix=RV32-EXPERIMENTAL-ZBB-ZBP %s // RV32-EXPERIMENTAL-ZBB-ZBP: "-target-feature" "+experimental-zbb" // RV32-EXPERIMENTAL-ZBB-ZBP: "-target-feature" "+experimental-zbp" + +// RUN: %clang -target riscv32-unknown-elf -march=rv32iv -### %s -c 2>&1 | \ +// RUN: FileCheck -check-prefix=RV32-EXPERIMENTAL-V-NOFLAG %s +// RV32-EXPERIMENTAL-V-NOFLAG: error: invalid arch name 'rv32iv' +// RV32-EXPERIMENTAL-V-NOFLAG: requires '-menable-experimental-extensions' + +// RUN: %clang -target riscv32-unknown-elf -march=rv32iv -menable-experimental-extensions -### %s -c 2>&1 | \ +// RUN: FileCheck -check-prefix=RV32-EXPERIMENTAL-V-NOVERS %s +// RV32-EXPERIMENTAL-V-NOVERS: error: invalid arch name 'rv32iv' +// RV32-EXPERIMENTAL-V-NOVERS: experimental extension requires explicit version number + +// RUN: %clang -target riscv32-unknown-elf -march=rv32iv0p1 -menable-experimental-extensions -### %s -c 2>&1 | \ +// RUN: FileCheck -check-prefix=RV32-EXPERIMENTAL-V-BADVERS %s +// RV32-EXPERIMENTAL-V-BADVERS: error: invalid arch name 'rv32iv0p1' +// RV32-EXPERIMENTAL-V-BADVERS: unsupported version number 0.1 for experimental extension + +// RUN: %clang -target riscv32-unknown-elf -march=rv32iv0p8 -menable-experimental-extensions -### %s -c 2>&1 | \ +// RUN: FileCheck -check-prefix=RV32-EXPERIMENTAL-V-GOODVERS %s +// RV32-EXPERIMENTAL-V-GOODVERS: "-target-feature" "+experimental-v" _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits