Your message dated Mon, 21 Jul 2025 08:49:08 +0000 with message-id <E1udmCq-0057P2-2x@fasolo.debian.org> and subject line Bug#1109115: fixed in gcc-15 15.1.0-10 has caused the Debian Bug report #1109115, regarding gcc-15: Please add patch to fix NaN signalling bit and propagation rules on sh4 to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@bugs.debian.org immediately.) -- 1109115: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1109115 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: gcc-15: Please add patch to fix NaN signalling bit and propagation rules on sh4
- From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
- Date: Fri, 11 Jul 2025 17:10:33 +0200
- Message-id: <[🔎] 175224663383.3757699.17976046063917597071.reportbug@login1.physik.fu-berlin.de>
Source: gcc-15 Version: 15.1.0-8 Severity: normal Tags: patch User: debian-superh@lists.debian.org Usertags: sh4 X-Debbugs-Cc: debian-superh@lists.debian.org Hi, gcc upstream recently merged a patch which fixes a lot of math testsuite failures in glibc [1][2][3]. The patch has not been backported to the gcc-15 branch yet, so it would be nice if we could merge the patch in the gcc-15 Debian package in the mean time. I'm attaching it in any case. I have cherry-picked this patch while on the gcc-15 branch of the gcc git repository using "git cherry-pick". Thanks, Adrian > [1] https://sourceware.org/bugzilla/show_bug.cgi?id=30973 > [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111814 > [3] https://gcc.gnu.org/cgit/gcc/commit/?id=2a643f55f5acc05dcc7cee133647bf3193d5b563 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913>From f1496a2ebee717137ba0b3c96aa4cbf8c96f51ec Mon Sep 17 00:00:00 2001 From: Jiaxun Yang <jiaxun.yang@flygoat.com> Date: Sat, 19 Apr 2025 08:07:58 -0600 Subject: [PATCH] [PATCH v2] sh: Correct NaN signalling bit and propagation rules [PR111814] As per architecture, SuperH has a reversed NaN signalling bit vs IEEE754-2008, it also has a NaN propgation rule similar to MIPS style. Use mips style float format and mode for all float types, and correct sfp-machine header accordingly. PR target/111814 gcc/ChangeLog: * config/sh/sh-modes.def (RESET_FLOAT_FORMAT): Use mips format. (FLOAT_MODE): Use mips mode. libgcc/ChangeLog: * config/sh/sfp-machine.h (_FP_NANFRAC_B): Reverse signaling bit. (_FP_NANFRAC_H): Likewise. (_FP_NANFRAC_S): Likewise. (_FP_NANFRAC_D): Likewise. (_FP_NANFRAC_Q): Likewise. (_FP_KEEPNANFRACP): Enable for target. (_FP_QNANNEGATEDP): Enable for target. (_FP_CHOOSENAN): Port from MIPS. gcc/testsuite/ChangeLog: * gcc.target/sh/pr111814.c: New test. --- gcc/config/sh/sh-modes.def | 6 +++++ gcc/testsuite/gcc.target/sh/pr111814.c | 7 +++++ libgcc/config/sh/sfp-machine.h | 36 ++++++++++++++++---------- 3 files changed, 36 insertions(+), 13 deletions(-) create mode 100644 gcc/testsuite/gcc.target/sh/pr111814.c diff --git a/src/gcc/config/sh/sh-modes.def b/src/gcc/config/sh/sh-modes.def index 80650b429e4..e31ae694a48 100644 --- a/src/gcc/config/sh/sh-modes.def +++ b/src/gcc/config/sh/sh-modes.def @@ -17,6 +17,12 @@ You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ +/* SH has the same reversed quiet bit as MIPS. */ +RESET_FLOAT_FORMAT (SF, mips_single_format); +RESET_FLOAT_FORMAT (DF, mips_double_format); +/* TFmode: IEEE quad floating point (software). */ +FLOAT_MODE (TF, 16, mips_quad_format); + /* Vector modes. */ VECTOR_MODE (INT, QI, 2); /* V2QI */ VECTOR_MODES (INT, 4); /* V4QI V2HI */ diff --git a/src/gcc/testsuite/gcc.target/sh/pr111814.c b/src/gcc/testsuite/gcc.target/sh/pr111814.c new file mode 100644 index 00000000000..a88e5d786ba --- /dev/null +++ b/src/gcc/testsuite/gcc.target/sh/pr111814.c @@ -0,0 +1,7 @@ +/* Verify that __builtin_nan("") produces a constant matches + architecture specification. */ +/* { dg-do compile } */ + +double d = __builtin_nan (""); + +/* { dg-final { scan-assembler "\t.long\t-1\n\t.long\t2146959359\n" } } */ diff --git a/src/libgcc/config/sh/sfp-machine.h b/src/libgcc/config/sh/sfp-machine.h index 66984d45755..67bc41516a3 100644 --- a/src/libgcc/config/sh/sfp-machine.h +++ b/src/libgcc/config/sh/sfp-machine.h @@ -39,11 +39,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) -#define _FP_NANFRAC_B _FP_QNANBIT_B -#define _FP_NANFRAC_H _FP_QNANBIT_H -#define _FP_NANFRAC_S _FP_QNANBIT_S -#define _FP_NANFRAC_D _FP_QNANBIT_D, 0 -#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0 +#define _FP_NANFRAC_B (_FP_QNANBIT_B - 1) +#define _FP_NANFRAC_H (_FP_QNANBIT_H - 1) +#define _FP_NANFRAC_S (_FP_QNANBIT_S - 1) +#define _FP_NANFRAC_D (_FP_QNANBIT_D - 1), -1 +#define _FP_NANFRAC_Q (_FP_QNANBIT_Q - 1), -1, -1, -1 /* The type of the result of a floating point comparison. This must match __libgcc_cmp_return__ in GCC for the target. */ @@ -56,14 +56,24 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); #define _FP_NANSIGN_D 0 #define _FP_NANSIGN_Q 0 -#define _FP_KEEPNANFRACP 0 -#define _FP_QNANNEGATEDP 0 - -#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ - do { \ - R##_s = _FP_NANSIGN_##fs; \ - _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ - R##_c = FP_CLS_NAN; \ +#define _FP_KEEPNANFRACP 1 +#define _FP_QNANNEGATEDP 1 + +/* X is chosen unless one of the NaNs is sNaN. */ +# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) | \ + _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \ + { \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ } while (0) #define _FP_TININESS_AFTER_ROUNDING 1 -- 2.50.0
--- End Message ---
--- Begin Message ---
- To: 1109115-close@bugs.debian.org
- Subject: Bug#1109115: fixed in gcc-15 15.1.0-10
- From: Debian FTP Masters <ftpmaster@ftp-master.debian.org>
- Date: Mon, 21 Jul 2025 08:49:08 +0000
- Message-id: <E1udmCq-0057P2-2x@fasolo.debian.org>
- Reply-to: Matthias Klose <doko@debian.org>
Source: gcc-15 Source-Version: 15.1.0-10 Done: Matthias Klose <doko@debian.org> We believe that the bug you reported is fixed in the latest version of gcc-15, which is due to be installed in the Debian FTP archive. A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to 1109115@bugs.debian.org, and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Matthias Klose <doko@debian.org> (supplier of updated gcc-15 package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing ftpmaster@ftp-master.debian.org) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Format: 1.8 Date: Sat, 19 Jul 2025 16:56:42 +0200 Source: gcc-15 Architecture: source Version: 15.1.0-10 Distribution: experimental Urgency: medium Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org> Changed-By: Matthias Klose <doko@debian.org> Closes: 1108158 1108247 1108261 1109115 Changes: gcc-15 (15.1.0-10) experimental; urgency=medium . * Update to git 20250719 from the gcc-15 branch. - Fix PR target/120356 (RISCV), PR target/120995 (RISCV), PR ipa/121023, PR tree-optimization/120780, PR tree-optimization/120358, PR tree-optimization/118669, PR tree-optimization/120817, PR tree-optimization/120927, PR tree-optimization/120944, PR middle-end/120369, PR rtl-optimization/120795, PR rtl-optimization/120550, PR tree-optimization/120927, PR middle-end/120608, PR tree-optimization/120729, PR tree-optimization/120654, PR target/120624 (AArch64), PR rtl-optimization/120347, PR middle-end/120608, PR middle-end/120631, PR target/119971 (RISCV), PR tree-optimization/120677, PR rtl-optimization/120423, PR rtl-optimization/116389, PR c/120837, PR c++/120628, PR c++/120569, PR c++/120575, PR c++/116064, PR c++/120940, PR c++/120684, PR c++/118856, PR c++/120471, PR fortran/120843, PR fortran/120847, PR fortran/120843, PR fortran/120711, PR fortran/120784, PR fortran/120784, PR fortran/119948, PR fortran/51961, PR modula2/120253, PR libstdc++/119754, PR libstdc++/120997, PR libstdc++/118681, PR libstdc++/120934, PR libstdc++/120931, PR libstdc++/120648, PR libstdc++/120650, PR middle-end/120935, PR tree-optimization/120924, PR tree-optimization/121059, PR tree-optimization/121049, PR tree-optimization/121035, PR tree-optimization/121131, PR target/120807 (loongarch), PR middle-end/120709, PR target/120999 (AArch64), PR rtl-optimization/120242, PR rtl-optimization/120627, PR rtl-optimization/120736, PR rtl-optimization/120813, PR target/118241 (RISCV), PR target/118241 (RISCV), PR target/120908 (x86), PR target/120908 (x86), PR ada/121056, PR fortran/121060, PR fortran/104428, PR fortran/120637, PR modula2/121164, PR modula2/120912, PR modula2/117203, PR modula2/120731, PR modula2/120673, PR modula2/119650, PR modula2/120606, PR modula2/119650, PR modula2/120542, PR modula2/120474, PR modula2/120497, PR modula2/120389. * Enable LRA support on sh4 (Adrian Glaubitz). Closes: #1108158. * Fix NaN signalling bit and propagation rules on sh4 (Adrian Glaubitz). Closes: #1109115. * Drop obsolete ia64-disable-selective-scheduling patch (Adrian Glaubitz). Closes: #1108247. * Enable algol on sh4 (Adrian Glaubitz). Closes: #1108261. * RISC-V: Minimal support for ssnpm, smnpm and smmpm extensions (taken from the trunk, Heinrich Schuchardt). LP: #2116120. * RISC-V: Bump to the RVA23U64 extension profile for Ubuntu 25.10 and later (Heinrich Schuchardt). LP: #2116086. * Enable -fzero-init-padding-bits=all, -Wbidi-chars=any for Ubuntu 25.10 and later. LP: #2108968. * Bump standards version. 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