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([2804:1b3:a7c3:b18e:82b0:6301:7f28:5bcc]) by smtp.gmail.com with ESMTPSA id fd30-20020a056a002e9e00b006eaf43b5982sm8913535pfb.108.2024.04.03.12.39.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Apr 2024 12:39:23 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Cc: "H . J . Lu" , Joseph Myers Subject: [PATCH 0/3] Improve x86 rounding implementation when FE_INEXACT trap is enabled Date: Wed, 3 Apr 2024 16:39:16 -0300 Message-Id: <20240403193919.1533786-1-adhemerval.zanella@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-5.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP 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: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+patch=linaro.org@sourceware.org Some x86 rounding implementation that uses 387 raises invalid floating point exceptions when traps are enabled. This is a GNU extension outside the scope of the C standard. Adhemerval Zanella (3): math: math: x86 ceill traps when FE_INEXACT is enabled (BZ 31600) math: math: x86 floor traps when FE_INEXACT is enabled (BZ 31601) math: math: x86 trunc traps when FE_INEXACT is enabled (BZ 31603) math/Makefile | 7 ++ math/test-ceil-except-2.c | 67 +++++++++++++++++++ math/test-floor-except-2.c | 67 +++++++++++++++++++ math/test-trunc-except-2.c | 67 +++++++++++++++++++ sysdeps/i386/fpu/s_ceil.S | 34 ---------- sysdeps/i386/fpu/s_ceil.c | 25 +++++++ sysdeps/i386/fpu/s_ceilf.S | 34 ---------- sysdeps/i386/fpu/s_ceilf.c | 25 +++++++ sysdeps/i386/fpu/s_ceill.S | 39 ----------- sysdeps/i386/fpu/s_floor.S | 34 ---------- sysdeps/i386/fpu/s_floor.c | 25 +++++++ sysdeps/i386/fpu/s_floorf.S | 34 ---------- sysdeps/i386/fpu/s_floorf.c | 25 +++++++ sysdeps/i386/fpu/s_floorl.S | 39 ----------- sysdeps/i386/fpu/{s_trunc.S => s_trunc.c} | 24 ++----- sysdeps/i386/fpu/{s_truncf.S => s_truncf.c} | 24 ++----- .../fpu/s_truncl.S => x86/fpu/s_ceill.c} | 29 ++------ sysdeps/x86/fpu/s_floorl.c | 25 +++++++ sysdeps/x86/fpu/s_nearestint_387_template.c | 36 ++++++++++ .../fpu/s_truncl.S => x86/fpu/s_truncl.c} | 23 ++----- sysdeps/x86_64/fpu/s_ceill.S | 34 ---------- sysdeps/x86_64/fpu/s_floorl.S | 33 --------- 22 files changed, 394 insertions(+), 356 deletions(-) create mode 100644 math/test-ceil-except-2.c create mode 100644 math/test-floor-except-2.c create mode 100644 math/test-trunc-except-2.c delete mode 100644 sysdeps/i386/fpu/s_ceil.S create mode 100644 sysdeps/i386/fpu/s_ceil.c delete mode 100644 sysdeps/i386/fpu/s_ceilf.S create mode 100644 sysdeps/i386/fpu/s_ceilf.c delete mode 100644 sysdeps/i386/fpu/s_ceill.S delete mode 100644 sysdeps/i386/fpu/s_floor.S create mode 100644 sysdeps/i386/fpu/s_floor.c delete mode 100644 sysdeps/i386/fpu/s_floorf.S create mode 100644 sysdeps/i386/fpu/s_floorf.c delete mode 100644 sysdeps/i386/fpu/s_floorl.S rename sysdeps/i386/fpu/{s_trunc.S => s_trunc.c} (69%) rename sysdeps/i386/fpu/{s_truncf.S => s_truncf.c} (68%) rename sysdeps/{i386/fpu/s_truncl.S => x86/fpu/s_ceill.c} (63%) create mode 100644 sysdeps/x86/fpu/s_floorl.c create mode 100644 sysdeps/x86/fpu/s_nearestint_387_template.c rename sysdeps/{x86_64/fpu/s_truncl.S => x86/fpu/s_truncl.c} (70%) delete mode 100644 sysdeps/x86_64/fpu/s_ceill.S delete mode 100644 sysdeps/x86_64/fpu/s_floorl.S