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{ "id": 2234604, "url": "http://patchwork.ozlabs.org/api/1.2/covers/2234604/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260507221717.486023-1-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260507221717.486023-1-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2026-05-07T22:16:59", "name": "[00/18] fpu: Compress float_status", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.2/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260507221717.486023-1-richard.henderson@linaro.org/mbox/", "series": [ { "id": 503289, "url": "http://patchwork.ozlabs.org/api/1.2/series/503289/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=503289", "date": "2026-05-07T22:16:59", "name": "fpu: Compress float_status", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/503289/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2234604/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=mYZkAjEN;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-oo1-xc36.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Based-on: 20260507160959.449170-1-richard.henderson@linaro.org\n(\"[PATCH v3 00/11] fpu: Export some internals for targets\")\n\nThe impetus of this was the Arm FP8 work, and noticing the code\ngenerated for clearing and copying float_status. Being able to\nreduce this to one 64-bit struct improved this quite a bit.\n\nAn in-progress iteration of this patch set used FIELD in float_status\ninstead of bitfields, which required all of the accessor work. In the\nend, I thought being able to print float_status from within gdb too\nuseful to give up lightly. But since the accessor work was done, I\nthought I'd go ahead and keep it.\n\n\nr~\n\n\nRichard Henderson (18):\n target/alpha: Remove CONFIG_SOFTFLOAT_INLINE\n fpu: Introduce FloatExceptionFlags\n target/alpha: Use FloatExceptionFlags\n fpu: Introduce FloatSNaNRule\n fpu: Use {get,set}_float_rounding_mode everywhere\n fpu: Use of {get,set}_floatx80_rounding_precision everywhere\n fpu: Use get_floatx80_behaviour everywhere\n fpu: Use get_float_2nan_prop_rule in partsN_pick_nan\n fpu: Use get_float_3nan_prop_rule in partsN_pick_nan_muladd\n fpu: Use get_float_infzeronan_rule in partsN_pick_nan_muladd\n fpu: Use accessors for tininess_before_rounding\n fpu: Use {get,set}_flush_to_zero everywhere\n fpu: Use accessors for ftz_before_rounding\n fpu: Use {get,set}_flush_inputs_to_zero everywhere\n fpu: Use get_default_nan_mode everywhere\n fpu: Use get_float_default_nan_pattern in partsN_default_nan\n fpu: Add accessors for rebias_{underflow,overflow}\n fpu: Reorg float_status\n\n include/fpu/softfloat-helpers.h | 32 ++-\n include/fpu/softfloat-types.h | 84 ++++---\n include/fpu/softfloat.h | 12 +-\n target/i386/ops_sse.h | 24 +-\n target/mips/fpu_helper.h | 3 +-\n fpu/softfloat.c | 122 +++++-----\n target/alpha/fpu_helper.c | 8 +-\n target/alpha/helper.c | 3 +-\n target/alpha/translate.c | 18 +-\n target/arm/tcg/helper-a64.c | 12 +-\n target/arm/tcg/vfp_helper.c | 38 ++--\n target/hexagon/fma_emu.c | 6 +-\n target/hppa/fpu_helper.c | 2 +-\n target/i386/tcg/fpu_helper.c | 65 +++---\n target/m68k/softfloat.c | 380 ++++++++++++++++----------------\n target/mips/msa.c | 4 +-\n target/ppc/cpu.c | 4 +-\n target/ppc/fpu_helper.c | 14 +-\n target/riscv/vector_helper.c | 6 +-\n target/s390x/tcg/fpu_helper.c | 4 +-\n target/sh4/cpu.c | 2 +-\n target/xtensa/cpu.c | 3 +-\n tests/fp/fp-bench.c | 6 +-\n tests/fp/fp-test.c | 6 +-\n fpu/softfloat-parts.c.inc | 52 ++---\n fpu/softfloat-specialize.c.inc | 112 +++++-----\n tests/fp/wrap.c.inc | 12 +-\n 27 files changed, 520 insertions(+), 514 deletions(-)" }