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[COMMITTED PATCH] suppress new -Wunused-but-set warnings in GMP code
- From: Roland McGrath <roland at hack dot frob dot com>
- To: libc-alpha at sourceware dot org
- Date: Thu, 16 Aug 2012 14:11:21 -0700 (PDT)
- Subject: [COMMITTED PATCH] suppress new -Wunused-but-set warnings in GMP code
2012-08-16 Roland McGrath <roland@hack.frob.com>
* stdlib/gmp-impl.h (udiv_qrnnd_preinv): Use __attribute__ ((unused))
on _QL, which is set by umul_ppmm but never used.
* stdio-common/_itoa.c (_itoa): Use __attribute__ ((unused)) on DUMMY
variables, which are set by GMP macros but never used.
* stdio-common/_itowa.c (_itowa): Likewise.
* stdlib/divmod_1.c (mpn_divmod_1): Likewise.
* stdlib/mod_1.c (mpn_mod_1): Likewise.
diff --git a/stdio-common/_itoa.c b/stdio-common/_itoa.c
index ebb3e85..4c588d9 100644
--- a/stdio-common/_itoa.c
+++ b/stdio-common/_itoa.c
@@ -264,7 +264,8 @@ _itoa (value, buflim, base, upper_case)
if (brec->flag)
while (value != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t __attribute__ ((unused));
umul_ppmm (x, dummy, value, base_multiplier);
quo = (x + ((value - x) >> 1)) >> (brec->post_shift - 1);
@@ -275,7 +276,8 @@ _itoa (value, buflim, base, upper_case)
else
while (value != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t __attribute__ ((unused));
umul_ppmm (x, dummy, value, base_multiplier);
quo = x >> brec->post_shift;
@@ -401,7 +403,8 @@ _itoa (value, buflim, base, upper_case)
if (brec->flag)
while (ti != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t dummy __attribute__ ((unused));
umul_ppmm (x, dummy, ti, base_multiplier);
quo = (x + ((ti - x) >> 1)) >> (brec->post_shift - 1);
@@ -413,7 +416,8 @@ _itoa (value, buflim, base, upper_case)
else
while (ti != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t dummy __attribute__ ((unused));
umul_ppmm (x, dummy, ti, base_multiplier);
quo = x >> brec->post_shift;
diff --git a/stdio-common/_itowa.c b/stdio-common/_itowa.c
index 9381d33..6561ee1 100644
--- a/stdio-common/_itowa.c
+++ b/stdio-common/_itowa.c
@@ -1,5 +1,5 @@
/* Internal function for converting integers to ASCII.
- Copyright (C) 1994-1996,1999,2000,2002,2007 Free Software Foundation, Inc.
+ Copyright (C) 1994-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Torbjorn Granlund <tege@matematik.su.se>
and Ulrich Drepper <drepper@gnu.org>.
@@ -296,7 +296,8 @@ _itowa (value, buflim, base, upper_case)
if (brec->flag)
while (ti != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t dummy __attribute__ ((unused));
umul_ppmm (x, dummy, ti, base_multiplier);
quo = (x + ((ti - x) >> 1)) >> (brec->post_shift - 1);
@@ -308,7 +309,8 @@ _itowa (value, buflim, base, upper_case)
else
while (ti != 0)
{
- mp_limb_t quo, rem, x, dummy;
+ mp_limb_t quo, rem, x;
+ mp_limb_t dummy __attribute__ ((unused));
umul_ppmm (x, dummy, ti, base_multiplier);
quo = x >> brec->post_shift;
diff --git a/stdlib/divmod_1.c b/stdlib/divmod_1.c
index b11fd7b..4e6966b 100644
--- a/stdlib/divmod_1.c
+++ b/stdlib/divmod_1.c
@@ -6,7 +6,7 @@
QUOT_PTR and DIVIDEND_PTR might point to the same limb.
-Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
+Copyright (C) 1991-2012 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -54,7 +54,7 @@ mpn_divmod_1 (quot_ptr, dividend_ptr, dividend_size, divisor_limb)
{
mp_size_t i;
mp_limb_t n1, n0, r;
- mp_limb_t dummy;
+ mp_limb_t dummy __attribute__ ((unused));
/* ??? Should this be handled at all? Rely on callers? */
if (dividend_size == 0)
diff --git a/stdlib/gmp-impl.h b/stdlib/gmp-impl.h
index f6454ee..7e94624 100644
--- a/stdlib/gmp-impl.h
+++ b/stdlib/gmp-impl.h
@@ -1,6 +1,6 @@
/* Include file for internal GNU MP types and definitions.
-Copyright (C) 1991, 1993, 1994, 1995, 1996, 2011 Free Software Foundation, Inc.
+Copyright (C) 1991-2012 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -216,7 +216,8 @@ extern mp_size_t __gmp_default_fp_limb_precision;
has to be set. Put the quotient in Q and the remainder in R. */
#define udiv_qrnnd_preinv(q, r, nh, nl, d, di) \
do { \
- mp_limb_t _q, _ql, _r; \
+ mp_limb_t _ql __attribute__ ((unused)); \
+ mp_limb_t _q, _r; \
mp_limb_t _xh, _xl; \
umul_ppmm (_q, _ql, (nh), (di)); \
_q += (nh); /* DI is 2**BITS_PER_MP_LIMB too small */\
diff --git a/stdlib/mod_1.c b/stdlib/mod_1.c
index 00f338b..d325a93 100644
--- a/stdlib/mod_1.c
+++ b/stdlib/mod_1.c
@@ -3,7 +3,7 @@
Return the single-limb remainder.
There are no constraints on the value of the divisor.
-Copyright (C) 1991, 1993, 1994, Free Software Foundation, Inc.
+Copyright (C) 1991-2012 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -49,7 +49,7 @@ mpn_mod_1 (dividend_ptr, dividend_size, divisor_limb)
{
mp_size_t i;
mp_limb_t n1, n0, r;
- mp_limb_t dummy;
+ mp_limb_t dummy __attribute__ ((unused));
/* Botch: Should this be handled at all? Rely on callers? */
if (dividend_size == 0)