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[24.5.188.125]) by smtp.gmail.com with ESMTPSA id z7-20020a170903018700b001def777afc5sm3128185plg.77.2024.03.16.10.35.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Mar 2024 10:35:28 -0700 (PDT) From: Vineet Gupta To: gcc-patches@gcc.gnu.org Cc: Jeff Law , kito.cheng@gmail.com, Palmer Dabbelt , gnu-toolchain@rivosinc.com, Robin Dapp , Vineet Gupta Subject: [gcc-15 0/3] RISC-V improve stack/array access by constant mat tweak Date: Sat, 16 Mar 2024 10:35:21 -0700 Message-Id: <20240316173524.1147760-1-vineetg@rivosinc.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Hi, This set of patches (for gcc-15) help improve stack/array accesses by improving constant materialization. Details are in respective patches. The first patch is the main change which improves SPEC cactu by 10%. There is at least one more pending change with same theme (riscv_add_offset/riscv_legitimize_address) but that is tripping up and currently being debugged. Thx, -Vineet Vineet Gupta (3): RISC-V: avoid LUI based const materialization ... [part of PR/106265] RISC-V: avoid LUI based const mat: keep stack offsets aligned RISC-V: avoid LUI based const mat in prologue/epilogue expansion [PR/105733] gcc/config/riscv/constraints.md | 12 +++ gcc/config/riscv/predicates.md | 12 +++ gcc/config/riscv/riscv-protos.h | 3 + gcc/config/riscv/riscv.cc | 91 +++++++++++++++++-- gcc/config/riscv/riscv.h | 20 ++++ gcc/config/riscv/riscv.md | 65 +++++++++++++ gcc/testsuite/gcc.target/riscv/pr105733.c | 15 +++ .../riscv/rvv/autovec/vls/spill-1.c | 4 +- .../riscv/rvv/autovec/vls/spill-2.c | 4 +- .../riscv/rvv/autovec/vls/spill-3.c | 4 +- .../riscv/rvv/autovec/vls/spill-4.c | 4 +- .../riscv/rvv/autovec/vls/spill-5.c | 4 +- .../riscv/rvv/autovec/vls/spill-6.c | 4 +- .../riscv/rvv/autovec/vls/spill-7.c | 4 +- .../gcc.target/riscv/sum-of-two-s12-const-1.c | 45 +++++++++ .../gcc.target/riscv/sum-of-two-s12-const-2.c | 22 +++++ 16 files changed, 292 insertions(+), 21 deletions(-) create mode 100644 gcc/testsuite/gcc.target/riscv/pr105733.c create mode 100644 gcc/testsuite/gcc.target/riscv/sum-of-two-s12-const-1.c create mode 100644 gcc/testsuite/gcc.target/riscv/sum-of-two-s12-const-2.c