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[71.212.47.143]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-74059021067sm7516485b3a.107.2025.05.05.13.28.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 May 2025 13:28:01 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 10/20] tcg/optimize: Build and use zero, one and affected bits in fold_orc Date: Mon, 5 May 2025 13:27:41 -0700 Message-ID: <20250505202751.3510517-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250505202751.3510517-1-richard.henderson@linaro.org> References: <20250505202751.3510517-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42c.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 --- tcg/optimize.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 22d302c9bf..5081e3db1f 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -2284,7 +2284,7 @@ static bool fold_or(OptContext *ctx, TCGOp *op) static bool fold_orc(OptContext *ctx, TCGOp *op) { - uint64_t s_mask; + uint64_t z_mask, o_mask, s_mask; TempOptInfo *t1, *t2; if (fold_const2(ctx, op) || @@ -2315,8 +2315,17 @@ static bool fold_orc(OptContext *ctx, TCGOp *op) } t1 = arg_info(op->args[1]); + + /* Affected bits are those not known one, masked by those known one. */ + if (fold_affected_mask(ctx, op, ~t1->o_mask & t2->o_mask)) { + return true; + } + + z_mask = t1->z_mask | ~t2->o_mask; + o_mask = t1->o_mask | ~t2->z_mask; s_mask = t1->s_mask & t2->s_mask; - return fold_masks_s(ctx, op, s_mask); + + return fold_masks_zos(ctx, op, z_mask, o_mask, s_mask); } static bool fold_qemu_ld_1reg(OptContext *ctx, TCGOp *op)