RISC-V compiler improvements and CI #274
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…d load them dynamically to support automatic instruction selection. Minor refactoring to RISC-V code.
| - RISC-V compiler now generates new LLVM Targets from RISC-V ADFs | ||
| and loads them dynamically, which adds support for automatic | ||
| instruction selection for RISC-V custom instructions. | ||
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Perhaps add a link to the paper.
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The paper is not out yet. Perhaps we can add the link later when it is available.
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| std::string | ||
| RISCVTDGen::intToHexString(int num) const { |
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Don't we have this in StringTools? If not, they belong there.
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Added to TCEString
| // TODO: OpenASIP converts hex numbers to unsigned by default. This converted | ||
| // number might not fit into i32 | ||
| std::string | ||
| RISCVTDGen::decimalsToHex(const std::string& pattern) const { |
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Same. Belongs to StringTools.
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I would keep this here, since it is highly specific to the TDGen pattern that it operates on
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
| /** | ||
| * @file riscv-tdgen |
| @@ -40,13 +40,13 @@ function fetch_llvm { | |||
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| if ! test -d $llvm_co_dir; | |||
| then | |||
| git clone --single-branch --depth=1 --branch release/17.x https://github.com/cpc/llvmtce.git $llvm_co_dir\ | |||
| git clone --single-branch --depth=1 --branch release/18.x https://github.com/cpc/llvmtce.git $llvm_co_dir\ | |||
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Why 18.x? The script name says 17.
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I branched the LLVM 17 branch here, so this release still uses LLVM 17 but has the LLVM patches that the new compiler needs here. The old and new branches are not compatible with the RISC-V compiler between OpenASIP revisions, so we cannot patch the new features to the old branch. Perhaps we can just keep this in main like it is and port the new LLVM release on top of this new branch (or a newer one) later?
… R3 instructions now have their own opcode
This PR adds the automatically retargeting compiler features presented at NorCAS 2024. Additionally, it adds the long-awaited CI pipeline.