From patchwork Wed Dec 6 13:43:55 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Myers X-Patchwork-Id: 24758 Received: (qmail 111946 invoked by alias); 6 Dec 2017 13:44:03 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 111889 invoked by uid 89); 6 Dec 2017 13:44:02 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.3 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_LOTSOFHASH, RCVD_IN_DNSWL_NONE, SPF_PASS, URIBL_RED autolearn=ham version=3.3.2 spammy= X-HELO: relay1.mentorg.com Date: Wed, 6 Dec 2017 13:43:55 +0000 From: Joseph Myers To: Subject: Make some ldbl-128, ldbl-128ibm arrays const [committed] Message-ID: User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 X-ClientProxiedBy: svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To SVR-IES-MBX-04.mgc.mentorg.com (139.181.222.4) I noticed that an x86_64 build of libm unexpectedly contained more non-constant data than an older version (before _Float128 support) did. The problem is non-const arrays in the ldbl-128 j0l and j1l implementations; this patch makes those arrays, and the corresponding ldbl-128ibm ones, const. Tested for x86_64, and tested compilation for powerpc with build-many-glibcs.py. Committed. 2017-12-06 Joseph Myers * sysdeps/ieee754/ldbl-128/e_j0l.c (Y0_2N): Make const. (Y0_2D): Likewise. * sysdeps/ieee754/ldbl-128/e_j1l.c (Y0_2N): Likewise. (Y0_2D): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_j0l.c (Y0_2N): Likewise. (Y0_2D): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_j1l.c (Y0_2N): Likewise. (Y0_2D): Likewise. diff --git a/sysdeps/ieee754/ldbl-128/e_j0l.c b/sysdeps/ieee754/ldbl-128/e_j0l.c index fb8d351..9190e27 100644 --- a/sysdeps/ieee754/ldbl-128/e_j0l.c +++ b/sysdeps/ieee754/ldbl-128/e_j0l.c @@ -796,7 +796,7 @@ strong_alias (__ieee754_j0l, __j0l_finite) Peak absolute error 1.7e-36 (relative where Y0 > 1) 0 <= x <= 2 */ #define NY0_2N 7 -static _Float128 Y0_2N[NY0_2N + 1] = { +static const _Float128 Y0_2N[NY0_2N + 1] = { L(-1.062023609591350692692296993537002558155E19), L(2.542000883190248639104127452714966858866E19), L(-1.984190771278515324281415820316054696545E18), @@ -807,7 +807,7 @@ static _Float128 Y0_2N[NY0_2N + 1] = { L(8.230845651379566339707130644134372793322E6), }; #define NY0_2D 7 -static _Float128 Y0_2D[NY0_2D + 1] = { +static const _Float128 Y0_2D[NY0_2D + 1] = { L(1.438972634353286978700329883122253752192E20), L(1.856409101981569254247700169486907405500E18), L(1.219693352678218589553725579802986255614E16), diff --git a/sysdeps/ieee754/ldbl-128/e_j1l.c b/sysdeps/ieee754/ldbl-128/e_j1l.c index 6fc69fa..e7af40e 100644 --- a/sysdeps/ieee754/ldbl-128/e_j1l.c +++ b/sysdeps/ieee754/ldbl-128/e_j1l.c @@ -815,7 +815,7 @@ strong_alias (__ieee754_j1l, __j1l_finite) Peak relative error 6.2e-38 0 <= x <= 2 */ #define NY0_2N 7 -static _Float128 Y0_2N[NY0_2N + 1] = { +static const _Float128 Y0_2N[NY0_2N + 1] = { L(-6.804415404830253804408698161694720833249E19), L(1.805450517967019908027153056150465849237E19), L(-8.065747497063694098810419456383006737312E17), @@ -826,7 +826,7 @@ static _Float128 Y0_2N[NY0_2N + 1] = { L(9.541172044989995856117187515882879304461E5), }; #define NY0_2D 7 -static _Float128 Y0_2D[NY0_2D + 1] = { +static const _Float128 Y0_2D[NY0_2D + 1] = { L(3.470629591820267059538637461549677594549E20), L(4.120796439009916326855848107545425217219E18), L(2.477653371652018249749350657387030814542E16), diff --git a/sysdeps/ieee754/ldbl-128ibm/e_j0l.c b/sysdeps/ieee754/ldbl-128ibm/e_j0l.c index 0a7fe32..42d4488 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_j0l.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_j0l.c @@ -723,7 +723,7 @@ strong_alias (__ieee754_j0l, __j0l_finite) Peak absolute error 1.7e-36 (relative where Y0 > 1) 0 <= x <= 2 */ #define NY0_2N 7 -static long double Y0_2N[NY0_2N + 1] = { +static const long double Y0_2N[NY0_2N + 1] = { -1.062023609591350692692296993537002558155E19L, 2.542000883190248639104127452714966858866E19L, -1.984190771278515324281415820316054696545E18L, @@ -734,7 +734,7 @@ static long double Y0_2N[NY0_2N + 1] = { 8.230845651379566339707130644134372793322E6L, }; #define NY0_2D 7 -static long double Y0_2D[NY0_2D + 1] = { +static const long double Y0_2D[NY0_2D + 1] = { 1.438972634353286978700329883122253752192E20L, 1.856409101981569254247700169486907405500E18L, 1.219693352678218589553725579802986255614E16L, diff --git a/sysdeps/ieee754/ldbl-128ibm/e_j1l.c b/sysdeps/ieee754/ldbl-128ibm/e_j1l.c index 5956c97..e70cae1 100644 --- a/sysdeps/ieee754/ldbl-128ibm/e_j1l.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_j1l.c @@ -738,7 +738,7 @@ strong_alias (__ieee754_j1l, __j1l_finite) Peak relative error 6.2e-38 0 <= x <= 2 */ #define NY0_2N 7 -static long double Y0_2N[NY0_2N + 1] = { +static const long double Y0_2N[NY0_2N + 1] = { -6.804415404830253804408698161694720833249E19L, 1.805450517967019908027153056150465849237E19L, -8.065747497063694098810419456383006737312E17L, @@ -749,7 +749,7 @@ static long double Y0_2N[NY0_2N + 1] = { 9.541172044989995856117187515882879304461E5L, }; #define NY0_2D 7 -static long double Y0_2D[NY0_2D + 1] = { +static const long double Y0_2D[NY0_2D + 1] = { 3.470629591820267059538637461549677594549E20L, 4.120796439009916326855848107545425217219E18L, 2.477653371652018249749350657387030814542E16L,