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[71.212.47.143]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-306df06a165sm13534812a91.4.2025.04.15.12.29.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Apr 2025 12:29:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 073/163] tcg/mips: Support negsetcond Date: Tue, 15 Apr 2025 12:23:44 -0700 Message-ID: <20250415192515.232910-74-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250415192515.232910-1-richard.henderson@linaro.org> References: <20250415192515.232910-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1036.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Signed-off-by: Richard Henderson Reviewed-by: Pierrick Bouvier --- tcg/mips/tcg-target-has.h | 4 ++-- tcg/mips/tcg-target.c.inc | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+), 2 deletions(-) diff --git a/tcg/mips/tcg-target-has.h b/tcg/mips/tcg-target-has.h index 05701fd228..c77d4296cf 100644 --- a/tcg/mips/tcg-target-has.h +++ b/tcg/mips/tcg-target-has.h @@ -41,7 +41,7 @@ extern bool use_mips32r2_instructions; /* optional instructions */ #define TCG_TARGET_HAS_bswap16_i32 1 #define TCG_TARGET_HAS_bswap32_i32 1 -#define TCG_TARGET_HAS_negsetcond_i32 0 +#define TCG_TARGET_HAS_negsetcond_i32 1 #if TCG_TARGET_REG_BITS == 64 #define TCG_TARGET_HAS_add2_i32 0 @@ -51,7 +51,7 @@ extern bool use_mips32r2_instructions; #define TCG_TARGET_HAS_sub2_i64 0 #define TCG_TARGET_HAS_ext32s_i64 1 #define TCG_TARGET_HAS_ext32u_i64 1 -#define TCG_TARGET_HAS_negsetcond_i64 0 +#define TCG_TARGET_HAS_negsetcond_i64 1 #endif /* optional instructions detected at runtime */ diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index 6a97264c7c..759f152711 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -959,6 +959,25 @@ static void tcg_out_setcond(TCGContext *s, TCGCond cond, TCGReg ret, tcg_out_setcond_end(s, ret, tmpflags); } +static void tcg_out_negsetcond(TCGContext *s, TCGCond cond, TCGReg ret, + TCGReg arg1, TCGReg arg2) +{ + int tmpflags = tcg_out_setcond_int(s, cond, ret, arg1, arg2); + TCGReg tmp = tmpflags & ~SETCOND_FLAGS; + + /* If intermediate result is zero/non-zero: test != 0. */ + if (tmpflags & SETCOND_NEZ) { + tcg_out_opc_reg(s, OPC_SLTU, ret, TCG_REG_ZERO, tmp); + tmp = ret; + } + /* Produce the 0/-1 result. */ + if (tmpflags & SETCOND_INV) { + tcg_out_opc_imm(s, OPC_ADDIU, ret, tmp, -1); + } else { + tcg_out_opc_reg(s, OPC_SUBU, ret, TCG_REG_ZERO, tmp); + } +} + static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGReg arg1, TCGReg arg2, TCGLabel *l) { @@ -2270,6 +2289,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, TCGType type, case INDEX_op_setcond_i64: tcg_out_setcond(s, args[3], a0, a1, a2); break; + case INDEX_op_negsetcond_i32: + case INDEX_op_negsetcond_i64: + tcg_out_negsetcond(s, args[3], a0, a1, a2); + break; case INDEX_op_setcond2_i32: tcg_out_setcond2(s, args[5], a0, a1, a2, args[3], args[4]); break; @@ -2364,6 +2387,8 @@ tcg_target_op_def(TCGOpcode op, TCGType type, unsigned flags) case INDEX_op_setcond_i32: case INDEX_op_setcond_i64: + case INDEX_op_negsetcond_i32: + case INDEX_op_negsetcond_i64: return C_O1_I2(r, rz, rz); case INDEX_op_deposit_i32: